Specifications

ManualsBrandsSharp ManualsModulatorSD-AT1000W

This manual applies to the following modulations:

Analog

DVB-T/H

DVBT-2

ISDB-T/H

CTTB

CMMB

ATSC/MH

TECHNICALMANU AL

888‐2693‐004

Maxiva™UAX

TransmitterSeries

October18,2013

RevC2

Allrightsreserved

Summary of content (292 pages)

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TECHNICAL MANUAL 888‐2693‐004 Maxiva™ UAX Transmitter Series This manual applies to the following modulations: Analog DVB-T/H DVBT-2 ISDB-T/H CTTB CMMB ATSC/MH © Copyright Harris Broadcast 2013 All rights reserved October 18, 2013 Rev C2
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Harris Broadcast 9800 S Meridian Blvd, Ste 300 Englewood, CO 80112 U.S.A Copyright ©2013, Harris Broadcast. Proprietary and Confidential. This document and its contents are considered proprietary and confidential by Harris Broadcast. This publication, or any part thereof, may not be reproduced in any form, by any method, for any purpose, or in any language other than English without the written consent of Harris Broadcast. A reasonable number of copies of this document may be made for internal use only.
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Manual Revision History Maxiva UAX Transmitter Series REV. DATE ECN Pages Affected / Description A JUN 2010 B OCT 2010 59521 Updated Section 5 reflected power cal., Section 2 remote control pinout, and specs in Section 1. C DEC 2012 62287 Added PCM 2 updates, DVB‐T2 info, interlock change, and general update. C1 Oct 2013 63140 Rebranded C2 Oct 2013 63145 Remove Cover Sheets MRH‐1 WARNING: Disconnect primary power prior to servicing.
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Technical Assistance Technical and troubleshooting assistance for Harris Broadcast products is available from the field service department during normal business hours 8:00AM to 5:00PM CST. Telephone +1‐217‐222‐8200, FAX +1‐217‐221‐7086, email tsupport@harrisbroadcast.com. Emergency service is available 24 hours a day, seven days a week, by telephone only. Online assistance, including technical manuals, software downloads, and service bulletins, is available at http://www.harrisbroadcast.
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______________________________ Quantity Part Number ________________________________ ______________________________ Ref Des e.g. C21, R100, etc. Item Used On Assembly if Known e.g. C21 used on 992-8025-001 & Schematic 839-8038-991 Comments Guide for Ordering Parts: Please provide as much information as possible to facilitate part substitution as required. Equipment name, part number and serial number is found on a metal ID plate on the rear of the unit.
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! WARNING: THE CURRENTS AND VOLTAGES IN THIS EQUIPMENT ARE DANGEROUS. PER‐ SONNEL MUST AT ALL TIMES OBSERVE SAFETY WARNINGS, INSTRUCTIONS AND REGULATIONS. This manual is intended as a general guide for trained and qualified personnel who are aware of the dangers inherent in handling potentially hazardous electrical/electronic circuits. It is not intended to contain a complete statement of all safety precautions which should be observed by personnel in using this or other electronic equipment.
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 WARNING: Disconnect primary power prior to servicing.
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FIRST‐AID Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged to become familiar with first‐aid theory and practices. The following information is not intended to be complete first‐aid procedures, it is a brief and is only to be used as a reference. It is the duty of all personnel using the equipment to be prepared to give adequate Emergency First Aid and there by prevent avoidable loss of life. Treatment of Electrical Burns 1.
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Guide to Using Parts List Information The Replaceable Parts List Index portrays a tree structure with the major items being left most in the index. The example below shows the Transmitter as the highest item in the tree structure. If you were to look at the bill of materials table for the Transmitter you would find the Control Cabinet, the PA Cabinet, and the Output Cabinet.
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Table of Contents Parallel Remote Control Installation . . . . . . . . . . . . . . 2‐16 Parallel Remote Connections – LPU . . . . . . . . . . . . . 2‐16 Parallel Remote Connections ‐ Top of Harris‐Supplied Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2‐18 Connecting via IP / Ethernet . . . . . . . . . . . . . . . . . . . . 2‐21 LPU Access via Ethernet . . . . . . . . . . . . . . . . . . . . . . 2‐21 Section-1 Introduction Purpose of This Manual . . . . . . . . . . . . .
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Table of Contents Stored Calibration Screen . . . . . . . . . . . . . . . . . . . . . 3‐27 LPU Exciter Home Screen . . . . . . . . . . . . . . . . . . . . . 3‐28 LPU Fault Log screens . . . . . . . . . . . . . . . . . . . . . . . . 3‐29 LPU Setup Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3‐30 User Settings Setup Screen. . . . . . . . . . . . . . . . . . . . 3‐30 System Settings Setup Screen 1 & 2 . . . . . . . . . . . . 3‐31 PFRU Setup . . . . . . . . . . . . . . . . . . . . . . . . .
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Table of Contents LPU Screen Captures . . . . . . . . . . . . . . . . . . . . . . . . . 5‐53 Changing Date and Time Battery . . . . . . . . . . . . . . . 5‐53 Precorrection Setup Procedure . . . . . . . . . . . . . . . . 5‐15 Troubleshooting Precorrection . . . . . . . . . . . . . . . . . . . 5‐16 Storing Precorrection . . . . . . . . . . . . . . . . . . . . . . . 5‐16 RTAC Setup and Operation in Combined Systems . 5‐16 Setting LPU Date and Time after Battery Replacement 5‐54 Analog Power Calibrations .
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Table of Contents 4
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1‐1 Maxiva UAX October 17, 2013 1 1.1 Section-1 Introduction Purpose of This Manual This manual provides important information for the proper operation and maintenance of the UAX family of air cooled, solid state, VHF transmitters. Schematics and diagrams are provided in an accompanying drawing package. This manual is written for the skilled broadcast maintenance technician and assumes previous experience working with RF broadcast equipment.
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1‐2 Section-1 Introduction October 17, 2013 1.3 UAX General Description The UAX series of solid state, air cooled, transmitters is designed to synthesize and amplify radio‐ frequency signals in the UHF broadcast bands IV & V (470 to 862 MHz).
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Maxiva UAX October 17, 2013 1‐3 The number following the UAX prefix stands for the transmitter power level.
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1‐4 Section-1 Introduction October 17, 2013 1.5 Transmitter System Major Subassemblies UAX transmitters feature solid‐state design and utilize FET‐based power amplifier (PA) modules to amplify the RF signal. In addition to RF drive power from the LPU, these PA modules utilize 50V DC power supplied by switch mode power supply (PS) modules. Both the PA and PS modules are hot‐pluggable and may be inserted and removed from the transmitter while it is on the air without risk of damage.
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Maxiva UAX October 17, 2013 1‐5 Figure 1-2 UAX-4 PAB Front View Figure 1-3 UAX-4 PAB Rear View 888‐2693‐004 WARNING: Disconnect primary power prior to servicing.
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1‐6 Section-1 Introduction October 17, 2013 1.5.1 Low Power Unit Figure 1-4 LPU (Low Power Unit) The LPU performs three distinct functions in the UAX transmitter system: 1. Transmitter control via the LPU front panel 2. Signal generation in the LPU modulator section 3. RF power amplification up to 100W in the LPU amplifier section 1.5.1.
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Maxiva UAX October 17, 2013 1‐7 The LPU uses RTAC™ (Real Time Adaptive Correction) to perform pre‐corrections for non‐linear distortions occurring in the transmitter RF power amplifiers and for linear distortions occurring in the high power mask filter. Low power RF samples from various stages of the transmitter are required by the RTAC circuits to determine the proper precorrection curves to apply.
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Maxiva UAX October 17, 2013 1‐9 The PAB chassis accepts an on‐channel RF signal from the LPU and amplifies it to a higher output level for transmission. It utilizes solid‐state FET‐based power amplifiers (PA) modules to amplify the RF signal. In addition to RF drive power from the LPU, these PA modules utilize 50V DC power supplied by switch mode power supply (PS) modules.
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1‐10 Section-1 Introduction October 17, 2013 1.6 Transmitter Control Unit (TCU) In dual‐drive transmitter systems with redundant LPUs, the optional transmitter control unit (TCU) serves as the main customer interface and LPU (exciter) switcher. , Figure 1-8 Transmitter Control Unit (TCU) - Front Panel Lowered The TCU contains the following modular subassemblies: a. A graphical user interface (GUI) based on a 5.25", color, 1/4 VGA, touch screen, panel PC. b.
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Maxiva UAX October 17, 2013 1.7 1‐11 Transmitter Accessories In addition to these devices, various add‐on options are available and may be present in a UAX transmitter system. Since these accessories do not significantly change the functioning of the core transmitter itself, it is understood that this manual addresses customized transmitter configurations that may contain one or more of these options.
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Maxiva UAX October 17, 2013 1.8 1‐13 UAX Specifications 1.8.1 LPU Modulator Section Specifications Note Specifications subject to changed without notice. Table 1‐4 Harris LPU Modulator Section Specifications Specification Explanation RF output connector SMA, 50 ohm impedance RF output power Analog TV 23 dBm (200 mW) peak of sync power Digital 20 dBm (100 mW) average power Analog and Digital Regulation of output power < 0.
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1‐14 Section-1 Introduction October 17, 2013 1.8.2 ISDB‐Tb & DVB‐T Specifications Table 1‐5 ISDB‐Tb & DVB‐T Specifications Item Units Conditions Notes Specification Value General Output Freq. Range MHz DTV Channel Bandwidth MHz Output Power (before mask filter) W Output Power (after mask filter) W Variation in Output Power % RF Load Impedance Ohms Band IV & V UHF TV 470‐862 5, 6, 7, or 8 MHz At 37dB shoulders (measured +/‐ 4.
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Maxiva UAX October 17, 2013 1‐15 Table 1‐5 ISDB‐Tb & DVB‐T Specifications Item Units Conditions Notes Specification Value Frequency stability (with‐ out external reference) +/‐ Hz Stand alone transmitter < 150 Frequency stability (with external reference) +/‐ Hz Requires external 10 mHz < 0.
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1‐16 Section-1 Introduction October 17, 2013 Table 1‐5 ISDB‐Tb & DVB‐T Specifications Item Units Acoustic Noise dBA Conditions Notes Measured 1m from front of cabinet and 1.5m up from floor Target specifi‐ cation. Specification Value  65 Physical Dimensions Varies depending on configuration and model. See outline drawing Weight Varies depending on configuration and model.
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Maxiva UAX October 17, 2013 1.8.3 1‐17 ATSC Specifications Table 1‐6 ATSC Specifications Item Units Conditions Notes Specification Value General Frequency Range MHz Any specified FCC Channel 14‐69 470‐862 DTV Channel Bandwidth MHz ATSC, 8‐VSB DTV standard 6 MHz Configuration Cabinet Output Power (before mask filter) W At 37 dB shoulders (mea‐ sured +/‐3.25 MHz from cen‐ ter of channel). ‐1 dB filter loss assumed. 12.
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1‐18 Section-1 Introduction October 17, 2013 Table 1‐6 ATSC Specifications Item Units Conditions Notes Specification Value External Frequency Reference Input Frequency MHz 10 MHz Impedance Ohms 50 Ohms Level dBm 0 to +10 dBm Connector BNC Female Performance Signal to Noise Ratio dB Within the 10 degree C per‐ formance temp window 27dB or better EVM, Error Vector Magni‐ tude % Within the 10 degree C per‐ formance temp window 4.
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Maxiva UAX October 17, 2013 1‐19 Table 1‐6 ATSC Specifications Item Units Conditions Notes Derate 2 degree C per 300m AMSL Operational Temperature Range °C Operational Relative Humidity % Non‐condensing Altitude Meters AMSL dBA 0‐45 (0‐40 for UL) 0 ‐ 90 Cooling Method Acoustic Noise Specification Value Measured 1m from front of cabinet and 1.5m up from floor Derate 2 degree C per 300m AMSL 0‐4000 Ducted air optional on 1kW and 2kW models Forced air Target.
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1‐20 Section-1 Introduction October 17, 2013 1.8.
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Maxiva UAX October 17, 2013 1‐21 Table 1‐7 Analog Specifications Item Units Conditions Notes Spec Value System CCIR‐G/PAL dB ‐4.43 +/‐0.2 MHz < ‐30 dB ‐4.43 to ‐1.25 MHz < ‐20 dB ‐1.25 to ‐0.75 MHz < +0.5 dB ‐0.75 MHz +0.5 to ‐1.0 dB ‐0.5 MHz +0.5 to ‐0.5 dB 0 to +1.5 MHz +0.5 to ‐0.5 dB +1.5 MHz reference dB +1.5 to +4.5 MHz +0.5 to ‐0.5 dB +5 MHz +0.5 to ‐2.5 dB +5 to +5.5 MHz < +0.5 dB > +5.
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1‐22 Section-1 Introduction October 17, 2013 Table 1‐7 Analog Specifications Item Units dB Conditions Notes +6.5 MHz Spec Value ‐20 to +0.5 System CCIR‐K1/PAL dB ‐4.43 MHz < ‐30 dB ‐1.75 Mhz < ‐20 dB ‐1.25 to +6.0 MHz < +/‐ 0.5 dB > +6.75 MHz < ‐40 System CCIR‐I/PAL Amplitude Frequency Response (after Harris‐ supplied IMD filter) dB ‐4.43 MHz < ‐30 dB ‐1.75 MHz < ‐20 dB ‐1.25 to +6.0 MHz < +/‐ 0.5 dB > +6.25 MHz < ‐40 CCIR‐N/PAL dB ‐4.43 MHz < ‐30 dB ‐4.43 to ‐1.
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Maxiva UAX October 17, 2013 1‐23 Table 1‐7 Analog Specifications Item Units Conditions Notes Spec Value Incidental Carrier Phase Modulation deg Carrier phase variation from reference white to sync tip relative to blanking. ± 2 or better Luminance Non‐linearity % Measured with a 5‐step stair‐ case signal. Test Signal #3 CCIR Rec. 421‐3. <10 System CCIR‐M, NTSC (Relative to FCC standard Curve) Equivalent Envelope Delay ns 0.2‐2.1 MHz < ± 30 ns 3.58 MHz < ± 30 ns 4.
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1‐24 Section-1 Introduction October 17, 2013 Table 1‐7 Analog Specifications Item Units Conditions Notes Modulation Mode Spec Value F3E Power Output % Up to 10% of Visual peak sync power Carrier Frequency Stabil‐ ity Hz/ month +/‐ 150 Monaural Input Connector at front panel Variation of input gain (rel. to nominal input level) dBm Input Impedance Ohms Input Return Loss dB Common Mode Rejection dB Modulation Capability kHz Copyright ©2013, Harris Broadcast ‐9.9 to +6.
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Maxiva UAX October 17, 2013 1‐25 Table 1‐7 Analog Specifications Item Units Conditions Notes Spec Value dB Measured at +/‐25 kHz devia‐ tion, 75 us de‐emphasis (Sys‐ tem M). +/‐50 kHz deviation 50 us de‐emphasis (System G), measured with Black Pic‐ ture dB Measured with no modula‐ tion on the Visual carrier. Carrier at blanking level, 15 kHz LP filter, sound carrier unmodulated >50 Synchronous AM Noise (Synchronous Amplitude Modulation) dB Measured with no modula‐ tion on the Visual carrier.
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1‐26 Section-1 Introduction October 17, 2013 Table 1‐7 Analog Specifications Item Units Input Impedance Conditions Ohms Notes balanced NICAM Signal Spec Value 600 ohms / >10k ohms switch selectable NICAM 728 Input Level (nominal, mono/stereo) dBm +6 BTSC Wideband Composite Input Input Connector at rear panel BNC; female Level V RMS Range V RMS 0.
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Maxiva UAX October 17, 2013 1‐27 Table 1‐7 Analog Specifications Item Units Conditions Notes Spec Value dB Measured with no modula‐ tion on the Visual carrier. Carrier at blanking level, 80 kHz LP filter > 50 dB Measured with no modula‐ tion on the Visual carrier.
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1‐28 Section-1 Introduction October 17, 2013 Table 1‐7 Analog Specifications Item Units Acoustic Noise dBA Conditions Notes Measured 1m from front of cabinet and 1.5m up from floor Target. Spec Value  65 Physical Dimensions Varies depending on configuration and model. See outline drawing Weight Varies depending on configuration and model. See outline drawing Safety and EMC Standards EN 60215 Safety EN 301‐489‐1 EMC Yes FCC Part 73 UL 60950 Yes. UL operating temperature range is 0‐40°C.
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2‐1 Maxiva UAX October 17, 2013 2 2.1 Section-2 Installation Introduction This section includes the information necessary for installation and commissioning on of the Maxiva UAX Series solid state, air cooled, UHF TV transmitter. Due to the modular nature of the Maxiva, all models have similar installation and testing procedures. 2.
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2‐2 Section-2 Installation October 17, 2013 2.4.1 Wiring Diagrams and Outline Drawings To aid in the installation process, Harris typically provides system drawings with each transmitter shipment. Please locate these drawings and review them before proceeding, as they will be referenced several times in the following pages. These drawings are typically provided in the drawing package accompanying this manual.
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Maxiva UAX October 17, 2013 2‐3 AC distribution chassis provides individual circuit breaker protection for each AC input. Refer to the Wiring Diagram, AC Distribution Panels UAX (843‐5602‐104) for more detail. Transmitters that ship without a rack must be equipped with customer provided individual circuit breaker protection for each AC input. Refer to AC Flow Diagram, No AC Distribution (843‐5602‐705) for more detail. Typically, transmitters with power levels below 100W are fed with single phase AC.
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2‐4 Section-2 Installation October 17, 2013 If using metal conduit, install the AC mains wiring in a separate conduit from all LPU input cables and small signal lines. If a pre‐wired rack is not ordered, mating connectors (IEC 15 and IEC C20) are provided with the transmitter shipment to allow termination of AC mains cables from the AC mains distribution panel. If these connectors can’t be located please contact Harris Customer Service. 2.6.
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Maxiva UAX October 17, 2013 2.7.1 2‐5 Overview of RF Grounding Practices The importance of a good RF grounding system and lightning protection cannot be overemphasized for reasons of personnel safety, protection of the equipment, and equipment performance. The following is a brief overview. Lightning and transient energy via the power line or tower connections can impose serious threats to personnel safety, as well as damage the equipment.
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2‐6 Section-2 Installation October 17, 2013 2.9 Installation Procedure Steps in the installation procedures presented in this manual are numbered. As each step is completed, the step number can be circled to indicate completion. This provides a quick verification at the end of the procedure that no steps were inadvertently skipped.
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Maxiva UAX October 17, 2013 2.9.3 2‐7 AC Mains Connections Procedure The AC mains connection into a Harris‐supplied rack is via a terminal block situated in the AC distribution chassis at the top of the rack. Access is via a removable panel on the roof of the rack. Note To avoid damage to the equipment, it is important that the correct voltage, frequency and connection type be verified prior to installation.
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2‐8 Section-2 Installation October 17, 2013 Caution BE CERTAIN THAT THE INSULATION ON EACH AC SUPPLY CABLE HAS BEEN SUFFICIENTLY CUT BACK TO ALLOW FULL CONTACT BETWEEN THE CONNECTOR BLOCK AND THE COPPER CABLE. FAILURE TO REMOVE THE INSULATION MAY RESULT IN HEATING AND FAILURE OF THE CONNECTION. STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 2.9.4 Connect the incoming safety ground wire to green/yellow PE connector in TB1. Verify that the primary AC line voltage is correct at the panel board or mains service entry.
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Maxiva UAX October 17, 2013 2‐9 Figure 2-2 Cabinet Interlock Jumper Plug Installed Figure 2-3 Standalone LPU RS-485/Interlock Jumper Plug Installed STEP 2 STEP 3 Adapt the safety and RF mute interlocks to site requirements, as desired. The interlock jumper wires may be removed from the supplied dummy plugs and additional switch closures wired in series with the interlock pin pairs. This extends the interlock loop(s) to encompass any additional devices requiring interlock protection.
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2‐10 Section-2 Installation October 17, 2013 UPS mains disconnect: connect the control wires for a UPS inhibit signal to pins 1 & 2 on at TB2 (under metal panel on top of cabinet). Safety interlock: If a complete AC mains interruption is not desired, route the safety interlock loop discussed above through to pins 2 & 3 on at J2 (interlock connector on top of cabinet).. STEP 4 2.9.5 Procedure complete.
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Maxiva UAX October 17, 2013 2‐11 Table 2‐2 LPU and Customer I/O TS Inputs LPU Label I/O Panel Label Connector (female) ATSC DVBT/CTTB/CMMB/ ISDBT DVBT Hierarchial HP A 1 BNC 50 ASI Primary ASI Primary ASI High Priority Primary HP B 2 BNC 50 SMPTE Primary ASI Auxiliary ASI High Priority Auxiliary LP A LP 1 BNC 50 ASI Auxiliary Not used ASI Low Priority Primary LP B LP 2 BNC 50 SMPTE Auxiliary Not used ASI Low Priority Auxiliary Connect a GPS antenna, 1pps signal, or 10 MHz
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2‐12 Section-2 Installation October 17, 2013 : Table 2‐5 Audio Main L/R J7 & Audio Aux L/R J8 Pin No. Designation 1 Ground 2 Left +/Mono 1+ 3 Left ‐/Mono 1‐ 4 Right +/Mono 2 + 5 Right ‐/Mono 2 ‐ 2.9.6 RF Samples Connection Connect the RF sample cables required for power metering and RTAC.
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Maxiva UAX October 17, 2013 2‐13 Figure 2-8 RF Sample Connections: Cabinet Top 2.10 Initial Start‐up Procedure The following procedure presents the steps required to turn on safely the UAX transmitter for the first time. It is recommended that installation personnel fully read the general product description in Section 1, the controls and operation material in Section 3, and these procedures before starting.
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2‐14 Section-2 Installation October 17, 2013 PA modules in the PAB’s are installed in two orientations. The upper modules are installed with the cooling fins up. The lower PAB modules are installed with the cooling fins down. Fully seat each module by pressing firmly against the outside front edges on the handles. Do not press on the center of the handle as it may deform. Caution IF THE MODULES DO NOT SEAT WITH MODERATE PRESSURE, REMOVE THE MODULE TO CHECK FOR INTERFERENCE.
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Maxiva UAX October 17, 2013 2‐15 of rushing air from the 50V DC fans on the PAB chassis rear door(s). Monitor reflected power as RF output power should ramp up from zero. Note The transmitter has already been adjusted to the desired operating frequency and power during final factory test. If a mask filter is provided inside the transmitter rack, it will also have been tuned and tested on channel at full power. STEP 13 STEP 14 STEP 15 Read transmitter output power from POWER screen on LPU.
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2‐16 Section-2 Installation October 17, 2013 2.12 Parallel Remote Control Installation The UAX transmitter may be remotely controlled via a parallel remote control interface, an IP/Ethernet interface, or both. This section addresses a parallel remote control interface. The IP/Ethernet and SNMP interfaces are discussed in "2.13 Connecting via IP / Ethernet" on page 2‐21 and "2.
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Maxiva UAX October 17, 2013 • • Alarm 2: Power Supply (If Power Supply LED is RED or ORANGE, Alarm is Faulted.) • Alarm 4: TS Input (If TS Input LED is RED or ORANGE, Alarm is Faulted.) 2‐17 Alarm 3: Drive Chain/Power Amp (If either Drive Chain or Power Amp LED is RED or ORANGE, Alarm is Faulted.) The Tx Interface connector on the back of the LPU is shown in Figure 2‐10 on page 2‐15.
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2‐18 Section-2 Installation October 17, 2013 2.12.
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Maxiva UAX October 17, 2013 2‐19 Table 2‐10 Status 2 J7 (top of cabinet) 1 2 4 12 Pin Female Signal, Digital/Analog GND REMOTE CONTROL ENABLED/DISABLED STATUS FUTURE 15 POWER CONTROL AUTO/MANUAL STATUS High: Power Control in Manual Low: Power Control in Auto 5 6 GND RF MUTED High: RF Not Muted Low: RF Muted 7 VSWR FOLDBACK ACTIVE High: VSWR Foldback Not Active Low: VSWR Foldback Active 8 9 GND VSWR FAULT High: VSWR Fault Not Active Low: VSWR Fault Active 10 TRANSMITTER FAULTED OFF High: XMTR
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2‐20 Section-2 Installation October 17, 2013 Table 2‐12 Control 3 J5 (top of cabinet) 12 Pin Female (Active Low) Signal, Digital/Analog 1 GND 2 SELECT AUTO POWER CONTROL 3 SELECT MANUAL POWER CONTROL 4 GND 5 LOSS OF AC MAINS 6 FUTURE 10 7 REMOTE CAN L 8 REMOTE CAN H 9 GND 10 REMOTE CAN L 11 REMOTE CAN H 12 GND Table 2‐13 Control 2 J4 (top of cabinet) 12 Pin Female (Active Low) Signal, Digital/Analog 1 GND 2 FUTURE 1 3 FUTURE 2 4 FUTURE 3 5 FUTURE 4 6 GND 7 FUTURE 5 8
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Maxiva UAX October 17, 2013 2‐21 Table 2‐14 Control 1 J3 (top of cabinet) 12 Pin Female (Active Low) Signal, Digital/Analog 1 GND 2 TRANSMITTER ON 3 TRANSMITTER OFF 4 RAISE POWER 5 LOWER POWER 6 RF MUTE 7 GND 8 SELECT DRIVE A 9 SELECT DRIVE B 10 SELECT AUTO DRIVE CONTROL 11 SELECT MANUAL DRIVE CONTROL 12 GND 2.13 Connecting via IP / Ethernet The UAX transmitter may be accessed by a computer via Ethernet for setup, operation, and software downloads.
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2‐22 Section-2 Installation October 17, 2013 The rear RJ45 connector is designed for connection to an existing Ethernet network. The IP address for this port is not fixed and will obtain an appropriate address from a DHCP server on the network if DHCP has been enabled via the SETUP > REMOTE COMMS > REAR MODE menu on the front panel LCD screen. Otherwise, it may be set to an appropriate static IP address via the SETUP > REMOTE COMMS > REAR IP ADDRESS menu.
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Maxiva UAX October 17, 2013 2‐23 c.monitor only (no credentials entered) STEP 6 The LPU web GUI is now displayed and can be navigated as needed. STEP 7 Procedure complete. 2.13.2 TCU Access via Ethernet The TCU serves a main gateway to the UAX transmitter in dual drive configurations. The web pages for the individual LPUs are available via the main TCU Ethernet connection as submenus on the TCU home screen.
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2‐24 Section-2 Installation October 17, 2013 Note Some network switches utilizing secure connections will require the MAC address to be given to the switch to allow traffic to pass to and from it. The MAC address can be found at the top of the Home > Service > Network page. STEP 4 When prompted, log in using username and password.
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Maxiva UAX October 17, 2013 2.14.2 2‐25 Supported MIBs As of this printing, the Harris UAX transmitter can serve out two different MIBs: • • 2.14.3 Harris transmitter base MIB (basic functionality for all Harris transmitters) IRT DVB Single Transmitter MIB Harris Base MIB Description The Harris base MIB is usable in all NMS (Network Management Systems) and is provided in text‐format.
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2‐26 Section-2 Installation October 17, 2013 Figure 2-12 Harris SMI Block Diagram Figure 2-13 MIB 2 Description Copyright ©2013, Harris Broadcast WARNING: Disconnect primary power prior to servicing.
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3‐1 Maxiva UAX October 17, 2013 Section-3 Operation 3 3.1 Introduction This section gives detailed operational information for the Maxiva UAX Series Solid‐State UHF TV transmitter. Information pertains to the operation and navigation of the front panel controls, the web interface, and the TCU (Transmitter Control Unit) touchscreen display in transmitters with dual drive LPU stages. 3.2 Operating the LPU The LPU does not have an AC mains ON/OFF switch.
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3‐2 Section-3 Operation October 17, 2013 3.2.3 LPU Control Panel The LPU (Low Power Unit) front is shown in Figure 3‐1 on page 3‐3. It contains an LCD screen, control buttons and LED’s as shown in Figure 3‐2 on page 3‐3. Table 3‐1 LPU Front Panel Control Buttons Field Explanation STATUS Displays the Status Menu. POWER Displays model number, forward/reflected power levels and allows selection of linear and non‐ Linear correction ‐ Stored, Adapt, Hold or Bypass.
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Maxiva UAX October 17, 2013 3‐3 Table 3‐2 Status LEDs Status LEDs States Explanation OUTPUT Green = OK Amber/Yellow = Warning Red = Fault Represents the status of the RF output for the system. When the transmitter is switched off, the OUTPUT LED is either off or green, depending on the factory system setup. Green: The transmitter is switched on, and the RF output level is greater than the FWD POWER THRESH (also called FWD LOW PWR WARNING) setting.
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3‐4 Section-3 Operation October 17, 2013 Generally, the information found on the LPU LCD menus can also be found on the web browser screens. For further details, refer to 3.4, GUI Interface. Note Modulation and the feature key changes must be made via the web browser and cannot be made with the LCD control panel. The LCD menu trees can be found below in Sections 3.2.4, 3.2.5, & 3.2.6. The values shown in the tree are samples only and will vary depending on application. 3.2.
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Maxiva UAX October 17, 2013 3.2.5 3‐5 LCD Setup Menu Tree Setup SYSTEM SETTINGS ADAPTIVE POWER ON LIN: ADAPT POWER ON NON-LIN: ADAPT LIN PROFILE: BASIC NON-LIN PROFILE: PROFILE 7 STORED FILTER SET: 4 FILTER SET TITLE: 474 DVBT TRANSMITTER MODEL: UAX1000 DATE: MM/DD/YYYY TIME: HH:MM:SSAM/PM FEATURE KEY: 16 digits DRIVER MODE: MASTER XMTR POWER SETTINGS FWD POWER REF: 1250W % OF FWD POWER REF: 100% FWD POWER THRESH.
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3‐6 Section-3 Operation October 17, 2013 Figure 3-6 Transmitter Control Unit (TCU) The TCU does not have an AC mains ON/OFF switch. Mains power is applied to the unit by plugging two energized power cords into the AC connectors (two, IEC C15) on the rear of the TCU chassis. The TCU will operate over a voltage range of 90‐ 240VAC, 47‐63 Hz, auto ranging. 3.3.
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Maxiva UAX October 17, 2013 3‐7 Figure 3-7 TCU Admin Screens Press the Edit button to display the screen shown on the right in Figure 3‐7. Press the Admin Password box and touchscreen keyboard will open allowing entry of a new admin password. Enter the desired admin level password and press done. STEP 4 STEP 5 Note The Admin level default username admin can not be changed. STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 Press the appropriate boxes to set the Engineer 1 and 2 usernames and passwords.
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3‐8 Section-3 Operation October 17, 2013 SYSTEM Figure 3-8 TCU Hardware Control Pushbuttons Table 3‐3 TCU Control Buttons Button States Power Control Auto/Manual Explanation Auto: Automatic power level control activated. The transmitter RF output power is held to the level established by the FWD PWR REF setting. Manual: The power level can be manually raised or lower using the Power Raise or Power Lower buttons. Remote Enable/Disable Enables or disables remote control of the transmitter.
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Maxiva UAX October 17, 2013 3‐9 Table 3‐4 TCU Status Indicators Status Indicator States Summary Status Drive Chain Green/Amber/Red This is a summary of the following: 1. LPU A Drive Chain (LPU Block) Status (OK, Warning, Fault) 2. LPU B Drive Chain (LPU Block) Status (OK, Warning, Fault) 3. Active LPU Exciter/LPU Block Summary Fault Status (OK, Fault) 4. LPU A Mute Status (Warning if muted) 5. LPU B Mute Status (Warning if muted).
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3‐10 Section-3 Operation October 17, 2013 Note Harris recommends the Firefox browser. In Firefox, screens can be enlarged by pressing and <+> simultaneously. Screen sizes are reduced by pressing and <-> simultaneously. Firefox also allows opening of multiple tabs so LPUs and TCU web browser sessions can be opened simultaneously. Note If REMOTE is Disabled on the hardware front panel, navigation and monitoring via web browser is still possible but transmitter control is not. 3.4.
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Maxiva UAX October 17, 2013 3.5 3‐11 TCU Screens The front panel touchscreen and web remote TCU Home screen have similar displays as shown in Figure 3‐10. Figure 3-10 TCU Home Screen Note The TCU GUI screens shown below were implemented around September 2012 and are used only in systems equipped with the PCM-2 TCU cards. Systems shipped prior to September 2012 used PCM-1 version cards and the GUI screens and features will vary.
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3‐12 Section-3 Operation October 17, 2013 These initials, as shown, allow viewing of their log entries. Clicking on a letter darkens it and removes its log entry category. Categories are: A = Active Faults & Warnings. C = Cleared Faults & Warnings. F = Faults W = Warnings I = Information E = Events Save Event Log to Disc Print Event Log Clear Event Log Filter Out Various Categories of the Event Log Note: Log Date format is set up on Service page.
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Maxiva UAX October 17, 2013 3‐13 Table 3‐6 UAX Home>Service Screen Field Login Explanation Press (upper left corner)button to open login screen. Home Icon Press the home icon (house) to return to TCU Home screen. Event Log Press the Event Log button to open event log screen. Station Name Enter station call or name. Model Number Transmitter model number (typically set at factory). Serial Number This transmitter’s serial number (typically set at factory).
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3‐14 Section-3 Operation October 17, 2013 Table 3‐7 Home >Service >Config & Config Page 2 Field Explanation Configuration Screen 1 Fwd Power Low Warning (W) Set the minimum forward power in watts (W) below which a warning is indicated. If the transmitter output power drops below this level, the Forward Power Bar and Output LED will turn yellow. Fwd Pwr Low Fault Set the minimum forward power in watts (W) below which a fault is indicated.
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Maxiva UAX October 17, 2013 3.5.3.1 3‐15 Raising or Lowering Output Power The pre‐filter average output power of the UAX in watts (W) is displayed numerically and on a bar graph at the top of every web screen. Power for digital modulation is given in average power. Power for analog systems is given in peak of sync output power. STEP 1 UAX output power is set by clicking in the white Fwd Pwr Reference box (field) on Configuration screen 1. Refer to Figure 3‐13 on page 3‐13 on left.
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3‐16 Section-3 Operation October 17, 2013 Table 3‐8 UAX TCU Home>Service>Network Field Hostname Explanation Label that identifies transmitter on network router. Used for network administration. MAC Ethernet port MAC (Media Access Control) address is displayed. DHCP Drop menu and select DHCP (Dynamic Host Control Protocol) or Static.
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Maxiva UAX October 17, 2013 3‐17 Figure 3-16 UTCU SNMP MIBs Screen Table 3‐10 UAX TCU Home>Service>Network>SNMP Config>MIB Config Field Transmitter Base Explanation Check to select base MIB for Harris transmitter. IRT DVB Dual Drive Check to select base DVB dual drive MIB for Harris transmitter. IRT DAB Dual Drive Check to select base DAB dual drive MIB for Harris transmitter. 3.5.
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3‐18 Section-3 Operation October 17, 2013 3.5.7 TCU Software Management Screens \ Figure 3-18 Software Management PCM & MCM screens \ Figure 3-19 Software Management Upload & Backup Screens Figure 3-20 TCU Software Management Backup & Reset Screens Copyright ©2013, Harris Broadcast WARNING: Disconnect primary power prior to servicing.
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Maxiva UAX October 17, 2013 3‐19 Table 3‐12 TCU Home>Service>Software Update Field Explanation Explanation The software version which is highlighted yellow is the active PCM card software. The rows in blue represent other PCM software versions. The soft keys allow the release notes of all versions to be reviewed, and other software versions to be activated or deleted. PCM Tab, Figure 3‐18 Left Side View Press tab to review the software version release notes.
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3‐20 Section-3 Operation October 17, 2013 Table 3‐12 TCU Home>Service>Software Update Field Explanation The backup function saves a copy of the PCM‐2 SD card image, configuration, and software files to the NAND flash memory on the single card computer (daughter board on the TCU PCM‐ 2 card). Should the SD card be damaged or removed the PCM software can be loaded from the flash memory module on the PCM daughter board (see"5.8.6.1 Micro SD Card Backup and Restoration" on page 5‐38).
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Maxiva UAX October 17, 2013 3.6.1 3‐21 LPU Home Screen Section 3.6.2 on page 3‐21 Section 3.6.3 on page 3‐23 Section 3.6.6 on page 3‐28 Figure 3-21 LPU Home Refer to LPU UAX Home screen Figure 3‐21. From this screen, Power Amps status, LPU System Config setup, and Exciter Home screens are accessed. Each UAX web browser screen has a transmitter ON/OFF status icon at the upper left as shown in Figure 3‐21. represents ON, and represents OFF.
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3‐22 Section-3 Operation October 17, 2013 Table 3‐13 XMTR Home>Power Amps Screen Field Explanations PA Blk# Indicates selected PAB number. Additional PABs or Fans can be selected using the softkeys at the bottom of the screen. Id # FET Drain current. Typically will not exceed 7 amps. Temp Indicates temperature of PA pallet. PS Indicates PS status. 48V DC Indicates status of 48V dc supplied to each PA module. Forward Power (W) PA block forward power in watts.
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Maxiva UAX October 17, 2013 3‐23 Table 3‐14 XMTR Home>Power Amps Screen>LPU PA’s Field Explanations LPU Forward Power (W) LPU forward power in watts. Note: If power reading is not accurate, it may need to be calibrated. Refer to Section 5.4.6 on page 5‐13 for LPU forward power calibration instructions. Blk Intlk Status of PAB interlock. Red background indicates open interlock Grey indicates closed interlock. RS485 Status of RS485 bus. Red background indicates communication problem.
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3‐24 Section-3 Operation October 17, 2013 Figure 3-25 LPU System Configuration Screens Table 3‐16 XMTR Home>LPU Home>Config> & >Next (Page 2) Field Fwd Pwr Threshold Explanation Set the minimum forward power in watts (W) below which a warning is indicated. If the transmitter output power drops below this level, the Forward Power Bar and Output LED will turn Yellow. Max Fwd Power Set the maximum forward power in watts (W) above which a fault is indicated.
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Maxiva UAX October 17, 2013 3‐25 Table 3‐16 XMTR Home>LPU Home>Config> & >Next (Page 2) Field Explanation Foldback Threshold (Fwd %) This level represents the percentage of reflected power that can be tolerated before initiating foldback. The level can be set from 1 to 4%. Four percent is the maximum reflected power setting allowed (approximately 1.5:1 VSWR). A reflected power level of 1% corresponds to a 1.22:1 VSWR.
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3‐26 Section-3 Operation October 17, 2013 Table 3‐17 UAX Home>Config>Cal (calibration types) Field Explanation Forward Forward calibrates the system forward power meter. This is a two point calibration process that saves calibration points at a low calibration point (approximately 10dB down from the transmitter model power) and a high calibration point (1 dB above transmitter model power). Forward calibration is required if the transmitter is set to operate a new frequency.
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Maxiva UAX October 17, 2013 3‐27 Note Calibration can abort automatically if a fault condition is detected during the calibration process. If this occurs, an error message will be displayed to the user. Calibration error conditions are outlined in Table 3-18. System Calibration is discussed in depth in Section 5.4, Digital Power Calibrations, on page 5‐8. Refer to that section for the complete system power calibration procedure.
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3‐28 Section-3 Operation October 17, 2013 During normal operation the LPU will automatically use the calibration set that is closest to the current frequency setting. If no stored calibration data for Factory Forward or Reflected Power calibration exists, a fault will be logged, causing the exciter to mute. System Calibration is discussed in depth in Section 5.4, Digital Power Calibrations, on page 5‐8. Refer to that section for the complete System Power Calibration procedure. 3.6.
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Maxiva UAX October 17, 2013 3‐29 Table 3‐19 Xmtr Home>Exciter Home Field Description Nonlinear Corrector uses RF feedback sample taken before the high power filter. Used to correct for linearity and incidental phase distortion in the high power amplification stages. Linear and Nonlinear Modes System Output Window 3.6.7 Adapt: The correction algorithm is active and will continuously calculate and update correction as needed.
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3‐30 Section-3 Operation October 17, 2013 3.7 LPU Setup Screens From this Main Setup Screen the systems listed in Table 3‐20 are accessed by pressing the appropriate button. Section 3.7.8 on page 3‐41 Section 3.8 on page 3‐73 Section 3.6.6 on page 3‐28 Figure 3-30 LPU Setup Table 3‐20 UAX Home>Exciter Home>Setup Field Explanation User Settings See Figure 3‐30 on page 3‐30. System Settings See Figure 3‐31 on page 3‐30. Transmitter I/O Only available for select modulations.
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Maxiva UAX October 17, 2013 3‐31 Table 3‐21 Xmtr Home>Exciter Home>Setup>User Settings Fields Active Users 3.7.2 Explanation Lists active Engineer level and NetAdmin level users that are logged into LPU via web browser. If logged in as administrator an Edit button will be displayed on screen. Pressing the button allows access to change passwords screen.
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3‐32 Section-3 Operation October 17, 2013 3.7.3 PFRU Setup Figure 3-33 LPU PFRU Setup Screen Table 3‐23 Xmtr Home>Exciter Home>Setup>PFRU Field Frequency (MHz) SFN Offset (Hz) System Reference Reference Loss Mute Time Out (hours) Discipline Reference Copyright ©2013, Harris Broadcast Explanation Enter licensed frequency in MHz with decimals. Field is available if SFN option is installed and functioning. ‐ Internal GPS (from internal GPS receiver) ‐ Ext. 1PPS reference input ‐ Ext.
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Maxiva UAX October 17, 2013 3‐33 Table 3‐23 Xmtr Home>Exciter Home>Setup>PFRU Field Explanation Primary 1 PPS Input Actual 1PPS Input. Select Int. GPS or Ext. 1PPS. Hidden when not in Auto 1PPS mode. Displays Internal or External 1PPS depending on which is selected. Hidden when not in  Auto 1PPS mode. 3.7.
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3‐34 Section-3 Operation October 17, 2013 Table 3‐24 Xmtr Home>Exciter Home>Setup>DUC/RTAC Field Explanation Success/Attempt x/x The digit to the right of the / indicates the number of times that corrector attempted to make a correction. The digit to the left of the / indicates the number of times the corrector succeeded in making a correction. Once adaption has started the successes may stop counting if the corrector does not see any additional improvements that can be made.
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Maxiva UAX October 17, 2013 3‐35 Follow the procedure below to save an RTAC Correction setup. STEP 1 The transmitter should be operating properly at 100% power. STEP 2 Refer to RTAC Setup Page 1 on left Figure 3‐34 on page 3‐33. Set the Linear and Nonlinear RTAC corrections to Adapt. After a short time, the number of successes and attempts will increment above the RTAC Linear and Nonlinear Bypass selection soft keys.
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3‐36 Section-3 Operation October 17, 2013 Table 3‐25 Xmtr Home>Exciter Home>Setup>DUC/RTAC>Next x2 Field Explanation Peak Reduction Control On/Off: Peak Reduction limits the RF peak power output of the transmitter to provide optimum RTAC performance, while preventing nuisance transmitter PA overdrive trips. In most cases, default settings should be used. Non‐Linear Range (dB) Green if Enabled. Set in dB.
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Maxiva UAX October 17, 2013 3‐37 Note If this limit is too low, in-band and out-of-band intermodulation products will increase due to the signal clipping. If the limit is too high, the RTAC nonlinear corrector performance may be degraded due to high peak stretch. Also high peaks could cause nuisance overdrive faults in some transmitter systems. STEP 1 In the ’RTAC’ Setup Screen 1, on left Figure 3‐34 on page 3‐33, set RTAC Linear and Non‐Linear functions to ’Bypass’.
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3‐38 Section-3 Operation October 17, 2013 3.7.5.3 RTAC Profiles sub window Profile Linear: For linear RTAC correction, BASIC and LONG OFFSET profiles should be tried first. The rule of thumb here is that more is not necessarily better, so use the first profile that works well. The equalizer length in time generally increases down the list. Linear profile choices are: • • • • • • • • BASIC This correction should be used for most standard mask filters.
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Maxiva UAX October 17, 2013 3.7.7 3‐39 Remote Comms Setup Screens Figure 3-37 LPU Ethernet Screen 1 Table 3‐26 UAX LPU Home>Exciter Home>Setup>Remote Communications Field Explanation Rear Ethernet Rear Ethernet port MAC (Media Access Control) address is displayed. MAC Address Mode Select DHCP (Dynamic Host Control Protocol) or Static. If Static is selected, click into and fill fields (obtained from your IT system administrator): IP, Gateway, & Subnet Mask.
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3‐40 Section-3 Operation October 17, 2013 Figure 3-38 LPU RS232, CAN and SNMP Screens 2 & 3 Table 3‐28 Xmtr Home>Exciter Home>Setup>Remote Communications>Next & Next Field RS232 Explanation Baud Rate (kHz), data bits, parity & stop bits values are displayed. Use these values when connecting via RS232. CAN Exciter ID Enter Exciter A or B. Note: When dual exciters are used they must be set to different values.
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Maxiva UAX October 17, 2013 3.7.8 3‐41 ISP (In‐System Programming) Screen Figure 3-39 LPU ISP Screens See "5.9.7 Updating Feature Key and LPU Software" on page 5‐45 for detailed update instructions. To reset the LPU select the Reset soft button (see Figure 3‐39 on left). Selecting Reset will cause the LPU to perform a software reboot. The user will be asked for confirmation to reset the LPU (see Figure 3‐39 on right). Select OK to continue or Cancel to abort the reset process.
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3‐42 Section-3 Operation October 17, 2013 Table 3‐29 Xmtr Home>Exciter Home>Setup>ATSC Modulator>Next Field Explanation Screen 1 ATSC Control Power On Input Configures which input will be used after a power failure. Selects which input is to be used actively by the modulator. Input choices and rear panel connectors are shown in "2.9.5 Program and Reference Connections" on page 2‐10. The input availability and functionality vary with modulation type. These inputs are not available for analog modulation.
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Maxiva UAX October 17, 2013 3.7.10 3‐43 Setup Screens ‐ ISDB‐T Modulation Figure 3-41 LPU ISDB-T Setup Screen 1 Table 3‐30 Xmtr Home>Exciter Home>Setup>ISDB‐T Modulator (screen 1) Fields Explanation Power On Input The selected input, ASI 1 or ASI 2, becomes the active input when the exciter is powered up. Auxiliary Input Choices are No or Yes. If yes is selected the exciter can be made to switch to an auxiliary input if the active input faults or drops out.
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3‐44 Section-3 Operation October 17, 2013 Figure 3-42 LPU ISDB-T Setup Screen 2 Table 3‐31 Xmtr Home>Exciter Home>Setup>ISDB‐T Modulator >Next (screen 2) Fields Explanation SFN Mode Choices are MFN (Multiple Frequency Network) or SFN (Single Frequency Network). Eqpmnt ID Range is 0 to 63. Equipment ID is assigned by the SFN network administrator and is provided to allow a unique identifier for each transmitter in the SFN cell.
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Maxiva UAX October 17, 2013 3‐45 Figure 3-43 LPU ISDB-T Setup Screen 3 Table 3‐32 Xmtr Home>Exciter Home>Setup>ISDB‐T Modulator>Next x2 (screen 3) Fields Explanation Network ID Choices are Disable or Enable. Transport Stream ID Choices are Disable or Enable. Channel (14‐69) Choices are Disable or Enable. Virtual Channel Choices are Disable or Enable. Restamp Choices are Disable or Enable. State Enter value in box. Micro Region Enter value in box.
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3‐46 Section-3 Operation October 17, 2013 3.7.11 Setup Screens ‐ DVB‐T Modulation Figure 3-45 LPU DVB-T Setup Screen 1 Table 3‐34 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator (screen 1) Fields Explanation Transport Stream Indicates active TS. Green PRES box on same line as ASI Input indicates TS is present. See TS input connectors and assignments in Section 2•8•5 on page 2‐10. Power‐On Input Choices are ASI 1, or ASI 2. This determines which input will be selected first on power‐up.
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Maxiva UAX October 17, 2013 3‐47 Figure 3-46 LPU DVB-T Setup Screen 2 Table 3‐35 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator>Next (screen 2) Fields Explanation Network Operation Select MFN (Multi Frequency Network) or SFN (Single Frequency Network). MFN mode selects operation in a Multiple Frequency Network (transmitters on different frequencies) which does not require synchronization with the other transmitters in a network.
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3‐48 Section-3 Operation October 17, 2013 Figure 3-47 LPU DVB-T Setup Screen 3 Table 3‐36 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator>Next>Next (screen 3) Fields Explanation Max(imum) Network Delay Value in microseconds for HP or LP modes. Maximum Network Delay is configured for an SFN network and sent in the MIP packet. Actual Network Delay Value in microseconds (us) for HP or LP modes. Actual Network Delay is the delay of the transport stream from the Single Frequency Network adapter to the UAX.
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Maxiva UAX October 17, 2013 3‐49 Figure 3-48 LPU DVB-T Setup Screen 4 Table 3‐37 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator>Next x3 (screen 4) Fields Explanation PCR Restamping Choices are Off or On. This is PCR (Program Clock Reference) Restamping of transport packets. For a SFN, this function must be disabled. Either setting is valid in MFN mode, but it is usually On Flow Adaptation Choices are Off or On.
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3‐50 Section-3 Operation October 17, 2013 Figure 3-49 LPU DVB-T Setup Screen 5 Table 3‐38 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator>Next x4 Fields (screen 5) Explanation These parameters can only be changed by GUI when in MFN mode. In SFN mode these parameters are read from MIP (Mega‐frame Initialization Packet) packets in transport stream input Output Bandwidth Choices are 8 MHz, 7 MHz, 6 MHz or 5MHz.
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Maxiva UAX October 17, 2013 3‐51 Figure 3-50 LPU DVB-T Setup Screen 6 Table 3‐39 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator>Next x5 (screen 6) Fields Update NIT Flag Adjusted Frequency Cell ID Priority Cell ID Explanation Choices are Disabled or Enabled. Update NIT (Network Information Table) Flag allows the update of the NIT packet with UAX RF frequency. This is only selectable in MFN mode. UAX RF frequency which is to be inserted in NIT. No value can be entered. This is for display only.
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3‐52 Section-3 Operation October 17, 2013 Figure 3-51 LPU DVB-T Setup Screen 7 . Table 3‐40 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator> Next x6 Fields (screen 7) Explanation The DVB‐H configuration sets information in the TPS (Transport Parameter Signaling) bits that pertain only to DVB‐H mode.  The programming choices for all four entries are On or Off, see the following for more information. These parameters can only be set in MFN mode.
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Maxiva UAX October 17, 2013 3‐53 Figure 3-52 LPU DVB-T Setup Screen 8 . Table 3‐41 Xmtr Home>Exciter Home>Setup>DVB‐T Modulator>Next x7 Fields (screen 8) Explanation These special test modes will cause errors and should not be used in normal operation. Special Test Flag PRBS Test Choices are None, Test Sync, and Test Spectrum. None: No special tests are selected. Test Sync: One OFDM packet at the beginning of each Mega‐Frame is deleted. This helps to measure alignment of UAX output in SFN mode.
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3‐54 Section-3 Operation October 17, 2013 3.7.12 Setup Screens ‐ DVB‐T2 Modulation Figure 3-53 LPU DVB-T2 Setup Screen 1 Table 3‐42 Xmtr Home>Exciter Home>Setup>DVB‐T2 Modulator (screen 1) Field Explanation Power On/Primary Input The selected input (ASI 1or ASI 2) is the active input. This determines which input is the current modulator data source. Active Input Choices are Manual, Auto or Auto & Return switching of the ASI Transport stream.
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Maxiva UAX October 17, 2013 3‐55 Figure 3-54 LPU DVB-T2 Setup Screen 2 Table 3‐43 Xmtr Home>Exciter Home>Setup>DVB‐T2 Modulator>Next (screen 2) Field Explanation Network Operation Select MFN (multi frequency network) or SFN (single frequency network). MFN mode selects operation in a multiple frequency network (transmitters on different frequencies) which does not require synchronization with the other transmitters in a network.
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3‐56 Section-3 Operation October 17, 2013 Figure 3-55 LPU DVB-T2 Setup Screen 3 Table 3‐44 Xmtr Home>Exciter Home>Setup>DVB‐T2 Modulator>Next x2 (screen 3) Field Time Delay priority SFN Time Offset Use Frequency Offset T2‐MI Frequency Offset Copyright ©2013, Harris Broadcast Explanation Choices are Local or T2‐MI. When local is selected, user enters offset in SFN time offset field. When T2‐MI is selected, offset comes fromT2‐MI packet.
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Maxiva UAX October 17, 2013 3‐57 Figure 3-56 LPU DVB-T2 Setup Screen 4 Table 3‐45 Xmtr Home>Exciter Home>Setup>DVB‐T2 Modulator>Next x3 (screen 4) Field Explanation Choices are 1K, 2K, 4K, 8K, 16K, or 32K. This refers to the number of sub carriers in the RF output bandwidth. See Table 3‐46 on page 3‐57. FFT Mode Grd Interval Choices are 1/4, 1/8, 1/16, 1/32, 1/128, 19/128, or 19/256. Pilot Pattern Choices are PP1, PP2, PP3, PP4, PP5, PP6, PP7, or PP8. See Table 3‐48 on page 3‐58.
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3‐58 Section-3 Operation October 17, 2013 Table 3‐47 Guard Interval Duration Time in Microseconds Guard Interval uS FFT Size 1/128 1/32 1/16 19/256 1/8 19/128 1/4 32K 28 112 224 266 448 532 N/A 16K 14 56 112 133 224 266 448 8K 7 28 56 66,5 112 133 224 4K N/A 14 28 N/A 56 N/A 112 2K N/A 7 14 N/A 28 N/A 56 1K N/A N/A 7 N/A 14 N/A 28 Table 3‐48 Scattered Pilot Patterns Allowed for SISO Mode Scattered Pilot Patterns Allowed FFT Size 1/128 1/32 1/16
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Maxiva UAX October 17, 2013 3‐59 Figure 3-57 LPU DVB-T2 Setup Screen 5 Table 3‐50 Xmtr Home>Exciter Home>Setup>DVB‐T2 Modulator>Next x4 (screen 5) Field Explanation Total PLPs Total number of Physical Layer Pipes (PLP) sent in the T2 transmission. In MPEG‐TS input mode there is only 1 PLP. In T2MI input mode there can be multiple PLPs from 1 to 255. PLP Number The number of an individual PLP for parameter entry/display. In MPEG‐TS mode the PLP Number is 0 fixed.
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3‐60 Section-3 Operation October 17, 2013 Figure 3-58 LPU DVB-T2 Setup Screen 6 Table 3‐51 Xmtr Home>Exciter Home>Setup>DVB‐T2 Modulator (screen 6) Field Explanation PRBS Enabled Choices are Yes or No. When Yes is selected, the exciter will output RF without a transport stream input. When No is selected, the exciter will mute without a transport stream input. Add TS Header Choices are Yes or No. When Yes is selected, a valid transport stream header is pre‐appended to each packet.
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Maxiva UAX October 17, 2013 3‐61 Table 3‐53 Verification Mode Preset, Numbers 1‐7 Verification Mode P reset Number 001 002 003 004 005 006 007 VV Reference CR35 CR35L CR23 8KFFT 8KFFT 16KFFT 16KFFT Rate 3/5 3/5 2/3 3/4 3/5 5/6 2/3 FEC Type 64800 64800 64800 64800 64800 64800 64800 Mode HEM HEM HEM HEM HEM HEM HEM Rotated QAM Yes Yes Yes Yes Yes Yes Yes Modulation 256QAM 256QAM 256QAM 64QAM 256QAM 64QAM 16QAM L1 Modulation 64QAM 64QAM 64QAM 64QAM
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3‐62 Section-3 Operation October 17, 2013 Table 3‐55 Verification Mode Preset, Numbers 15‐19 Verification Mode Preset Number 015 016 017 018 019 8KFFT 256QAM34 PAPRTR MISO NOROT 3/5 3/4 4/5 5/6 3/5 FEC Type 64800 64800 64800 64800 64800 Mode HEM HEM HEM HEM HEM Yes Yes Yes Yes No Modulation 256QAM 256QAM 256QAM 256QAM 256QAM L1 Modulation 64QAM 64QAM 64QAM 64QAM 64QAM 8K 32K 32K 32K 32K GI 1/32 1/128 1/32 1/16 1/128 Pilot Pattern PP7 PP7 PP4 PP2
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Maxiva UAX October 17, 2013 3.7.13 3‐63 Setup Screens ‐ CTTB & CMMB Modulation Figure 3-59 LPU CTTB Setup Screen 1 Table 3‐56 Xmtr Home>Exciter Home>Setup>CTTB Modulator (screen 1) Fields Power‐On Input Active Input The selected input, Primary (ASI 1) or Auxiliary (ASI 2), becomes the active input when the exciter is powered up. The selected input, Primary (ASI 1) or Auxiliary (ASI 2), is the active input Switching Mode Choices are Auto (automatic) or Manual switching of the ASI Transport stream.
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3‐64 Section-3 Operation October 17, 2013 Figure 3-60 LPU CTTB Setup Screen 2 Table 3‐57 Xmtr Home>Exciter Home>Setup>CTTB Modulator>Next (screen 2) Fields Output Bandwidth Carriers Guard Interval Guard Interval PN Constellation Time Interleaver Copyright ©2013, Harris Broadcast Explanation Choices are 8 MHz, 7 MHz, 6 MHz or 5MHz. Choices are Multi, Single, or Two Pilot.
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Maxiva UAX October 17, 2013 3‐65 Figure 3-61 LPU CTTB Setup Screen 3 Table 3‐58 Xmtr Home>Exciter Home>Setup>CTTB Modulator>Next x2 (screen 3) Fields Explanation Bit rate Adaptation Choices are Enable or Disable. This applies only to MFN mode. Bit Rate Adaptation will drop all incoming null packets, introduce new null packets as appropriate to manage the data rate and restamp Program Clock Reference (PCR) appropriately.
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3‐66 Section-3 Operation October 17, 2013 3.7.14 Setup Screens ‐ Analog Modulation Caution CHANGING THE VIDEO STANDARD AND SOUND SYSTEM SETTINGS WILL CAUSE THE TRANSMITTER TO MUTE TEMPORARILY Figure 3-62 LPU Analog Setup Screens 1 & 2 Table 3‐59 Xmtr Home>Exciter Home>Setup>Analog Modulator (screens 1&2) Field Explanation Video/Sound Sub Window (Screen 2) Video Standard Choices are B/G, D/K, K1, I, M, and N. See Table 3‐60 on page 3‐67. Sound System Choices are MONO, NICAM, DUAL and BTSC.
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Maxiva UAX October 17, 2013 3‐67 Table 3‐59 Xmtr Home>Exciter Home>Setup>Analog Modulator (screens 1&2) Field Backporch Sync Delay Explanation This setting is made in (ns) nanoseconds. This is an adjustment for the sync to video timing for the AGC (Automatic Gain Control) circuits. Adjust the timing of the sync pulse on the “BPSync” connection on the back of the LPU. AGC Mode Choices are Sync, Whiteall or Testline. This is the parameter to which Reg. Mode (Regulation Mode), below, is referenced. Reg.
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3‐68 Section-3 Operation October 17, 2013 Caution CHANGING THE SOUND CARRIER AND CARRIER LEVEL SETTINGS ON THE MONO CARRIER SETUP SCREEN WILL CAUSE THE TRANSMITTER TO MUTE TEMPORARILY. Figure 3-64 LPU Analog Setup Screen 3 Mono Table 3‐61 Xmtr Home>Exciter Home>Setup>Analog Modulator (screen 3 Mono) Field Explanation Mono Carrier Setup Sub Window (Screen 3) Sound Carrier 1 Choices are Off or On. Off is used to turn the sound carrier off for test purposes. Carrier 1 Level Value entered in ‐dB.
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Maxiva UAX October 17, 2013 3‐69 Table 3‐62 Monaural Sound Carrier Frequencies (relative to video carrier F) Analog System Standard Sound carrier frequency, relative to the video carrier frequency. Modulation sensitivity, at a particular audio frequency and at a nominal input level and impedance. M N 4.5 MHz +/ 4.5 MHz +/ ‐ 2 Hz ‐ 2 Hz 25 kHz at 500Hz, +6 dBm ‐ 600 ohm Carrier level referenced to vision peak of Sync Monaural: ‐10dB BTSC: ‐10dB B/G D/K K1 5.5 MHz +/ 6.5 MHz +/ 6.
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3‐70 Section-3 Operation October 17, 2013 Warning CHANGING THE CARRIER AND CARRIER LEVEL (IF CARRIER IS ON) SETTINGS ON THE NICAM SETUP 1 SCREEN WILL CAUSE THE TRANSMITTER TO MUTE TEMPORARILY. Figure 3-66 LPU Analog NICAM Screens 4 & 5 Table 3‐64 Xmtr Home>Exciter Home>Setup>Analog Modulator (Nicam Screens 4 & 5) Field Explanation Nicam Setup 1 Sub Window (Screen 4) Modulation Choices are Off or On. This control turns the NICAM modulation Off or On, but the NICAM carrier remains On.
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Maxiva UAX October 17, 2013 3‐71 Table 3‐64 Xmtr Home>Exciter Home>Setup>Analog Modulator (Nicam Screens 4 & 5) Field Explanation High Priority Chooses which mode of coding (TTX‐Line or Dataline) will be the high priority choice. This selection determines where the information concerning the sound standard is located. TTX (teletext) or Dataline are video lines within the vertical interval.
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3‐72 Section-3 Operation October 17, 2013 Table 3‐65 Xmtr Home>Exciter Home>Setup>Analog Modulator (Dual screens 3&4) Field Explanation Carrier 1 Level: Set dB. This represents the amplitude adjustment of the BTSC Sound Carrier 1 level in dB relative to peak sync of the vision carrier range. Carrier 2 Level Set dB. This represents the amplitude adjustment of the BTSC Sound Carrier 2 level in dB relative to peak sync of the vision carrier range.
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Maxiva UAX October 17, 2013 3.8 3‐73 LPU Status Screens Section 6.3 on page 6‐3 Section 3.7 on page 3‐30 Section 3.6.7 on page 3‐29 Section 3.6.6 on page 3‐28 Figure 3-68 LPU Status Main Screen Table 3‐66 Xmtr Home>Exciter Home>Status Field Explanation Signal Processor See Section 3.8.3 on page 3‐77. UDC/ Output See Section 3.8.5 on page 3‐80. Only available for select modulations. See Section 3.8.4 on page 3‐78. Transmitter I/O PFRU See Section 3.8.1 on page 3‐74.
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3‐74 Section-3 Operation October 17, 2013 3.8.1 PFRU Status screens Figure 3-69 LPU PFRU Status Screens 1 & 2 Table 3‐67 Xmtr Home>Exciter Home>Status >PFRU Status Field Explanation FPGA (Field Programmable Gate Array) Programmed Communication Health Green = PFRU is programmed, Red = fault Green = Serial communication OK with PFRU FPGA, Red =fault Sys Reference Clocks External 1PPS When selected as the 10MHz OCXO Reference, Present = Green background, Missing = Yellow.
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Maxiva UAX October 17, 2013 3‐75 Table 3‐67 Xmtr Home>Exciter Home>Status >PFRU Status GPS Power Supply # Sat. Detected Satellite Time Green = OK, Red = fault The transmitter needs to detect a minimum of three satellites for GPS lock and possible range. Clock time‐of‐day Latitude N yy degrees yy.yyy minutes Longitude W yy degrees yy.yyy minutes Altitude yyyy.
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3‐76 Section-3 Operation October 17, 2013 3.8.2 RTAC Status Screens 1 & 2 Figure 3-70 LPU RTAC Status Screens 1 & 2 Table 3‐68 Xmtr Home>Exciter Home>Status >RTAC Status Field Explanation See Notes on Levels following this Table Levels Pre‐Filter This is a bargraph indication which gives the relative pre‐ filter RTAC RF sample level. Post‐Filter This is a bargraph indication which gives the relative post‐ filter RTAC RF sample level.
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Maxiva UAX October 17, 2013 3‐77 Some transmitter power amplifiers consist of multiple power amplifier modules. Other transmitter systems consist of multiple PA cabinets. For these systems, the transmitter output power may vary due to failure or removal of PA modules, because a PA cabinet was faulted off, turned off, or switched out of the combiner. For these transmitters, make sure the RTAC RF sample levels stay within the recommended power range for all expected transmitter output power levels. 3.8.
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3‐78 Section-3 Operation October 17, 2013 Table 3‐69 Xmtr Home>Exciter Home>Status >Signal Processor Fans Fan Status The Fan Status field provides the summary fan status of the two front panel fans. If both fans are OK, the Fan Status field is Green. If either fan has a warning, or one fan is faulted, the Fan Status field is Yellow. If both fans are faulted, the Fan Status field is Red. The exciter will operate on only one fan.
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Maxiva UAX October 17, 2013 3‐79 Table 3‐70 Status >Transmitter I/O Field Explanation Status Remote Enable Indicated the remote control status of the LPU. Green is enabled, Blue is disabled ‐ input on pin 5. Note: In Standalone operation, the Remote Control command is ignored. Auto Power Ctrl Auto/Manual Power control command. Green is Auto, Blue is Manual ‐ input on pin 18. Note: In Standalone operation, the Auto Power Ctrl command is ignored. Exciter OFF Transmitter Off Command.
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3‐80 Section-3 Operation October 17, 2013 3.8.5 UDC/Output Status Screen Figure 3-73 LPU UDC/Output Status Screen Table 3‐71 Status Screen>UDC/Output Field Explanation Status Alive RF Mute Levels (mV) Green = UDC is communicating, Red = fault Green = unmuted, Red = muted (This sub window provides the signal levels for the Upconverter.) LO (mV) Range is 2222 to 2427. If the LO level is detected to be outside of this range, a fault is declared and the RF Output of the system will be muted..
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Maxiva UAX October 17, 2013 3.8.6 3‐81 Revisions Status screens Figure 3-74 LPU Status Main Screen>Revisions & >Next System software revisions information is displayed on Revision Status Screens 1. Select Next to proceed to Hardware Revisions screen. The build revision indicates the software build that is currently running on the system. If the build revision reads Customer Special then the system is running a non‐released or incomplete build. 3.8.
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3‐82 Section-3 Operation October 17, 2013 Table 3‐72 Xmtr Home> Exciter Home> Status > Battery Backup Field Explanation UPS State Status is Enabled or Disabled. This is an input from the transmitter I/O. It is used to disable the backup battery. The input for this control is pin 9 of the Transmitter Interface Connector, which is found on the transmitter I/O board option. The battery backup can be disabled by addition of a connector/jumper described in Figure 2‐10 on page 2‐15.
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Maxiva UAX October 17, 2013 3‐83 Figure 3-77 LPU ATSC Status Screen 2 Table 3‐74 Xmtr Home>Exciter Home>Status>ATSC Modulator (screen 2) Field Explanation Modulator Mute Green = OK, Red = Mute. If the digital modulator section is actively muted, this will indicate red. Negative Delay In SFN situations, the exciter can only insert (add) delay.
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3‐84 Section-3 Operation October 17, 2013 Table 3‐74 Xmtr Home>Exciter Home>Status>ATSC Modulator (screen 2) Field Explanation TAD Transmitter to antenna delay. This the throughput delay, measured after the signal leaves the exciter network delay circuit and travels to the output of the transmitter. This delay is important if the network consists of transmitters from different manufactures, where the output process time will change from one manufacturer to another.
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Maxiva UAX October 17, 2013 3.8.9 3‐85 Status Screens ‐ ISDB‐T Modulation Figure 3-79 LPU ISDB-T Status Screen 1 Table 3‐76 Xmtr Home>Exciter Home>Status>ISDB‐T Modulator (screen 1) Field Active Stream Transport Stream Rate ASI Input Explanation Display only showing which transport stream (ASI 1 or ASI 2) is on the air. Input bit rate of the active ASI transport stream. Green = transport stream Present. Red = transport stream selected as active is missing.
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3‐86 Section-3 Operation October 17, 2013 Figure 3-80 LPU ISDB-T Status Screen 2 Table 3‐77 Xmtr Home>Exciter Home>Status>ISDB‐T Modulator>Next (screen 2) Field Explanation ISDB‐T Mode ISDB‐T mode (see Section 2.3 of ARIB STD B‐31). Will display mode 1, 2 or 3. Guard Interval Display only, this is the length of the guard band, expressed as a fraction of the useful symbol time. Values are 1/4, 1/8, 1/16, or 1/32 of the OFDM Symbol Length. (see Section 3.14.2 of ARIB STD B‐31).
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Maxiva UAX October 17, 2013 3‐87 Figure 3-81 LPU ISDB-T Status Screen 3 Table 3‐78 Xmtr Home>Exciter Home>Status>ISDB‐T Modulator>Next x2 (screen 3) Field Explanation Packet Count A Total number of layer A transport stream packets (TSPs) received. Count is reset when any parameter change. Packet Count B Total number of layer B transport stream packets (TSPs) received. Count is reset when any parameter change Packet Count C Total number of layer C transport stream packets (TSPs) received.
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3‐88 Section-3 Operation October 17, 2013 3.8.10 Status Screens ‐ DVB‐T Modulation Figure 3-82 LPU DVB-T Status Screen 1 (right) Table 3‐79 Xmtr Home>Exciter Home>Status>DVB‐T Modulator (screen 1) Field Active Stream ASI Packet Status ASI Input ASI Uncorr(ected) Error Explanation Displays Active Transport stream. In non‐hierarchy mode only the high priority (HP) input is used. In hierarchy mode both high priority (HP) and low priority (LP) inputs are used.
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Maxiva UAX October 17, 2013 3‐89 Figure 3-83 - LPU DVB-T Status Screen 2 Table 3‐80 Xmtr Home>Exciter Home>Status>DVB‐T Modulator>Next (screen 2) Field Active Stream ASI Packet Status ASI Input Packets 888‐2693‐004 Explanation Displays Active Transport stream. In non‐hierarchy mode only the high priority (HP) input is used. In hierarchy mode both high priority (HP) and low priority (LP) inputs are used.
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3‐90 Section-3 Operation October 17, 2013 3.8.11 Status Screens ‐ DVB‐T2 Modulation Figure 3-84 LPU DVB-T2 Status Screen 1 Table 3‐81 Xmtr Home>Exciter Home>Status>DVB‐T2 Modulator (screen 1) Field Explanation Displays Active Transport stream. Active Stream If the ASI input is present with no errors, a green box with the word PRES appears under the label. The area under the label remains blue with ‐‐ if input is absent. ASI Input Displays total transport stream bit rate for each ASI input.
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Maxiva UAX October 17, 2013 3‐91 Figure 3-85 LPU DVB-T2 Status Screen 2 Table 3‐82 Xmtr Home>Exciter Home>Status>DVB‐T2 Modulator>Next (screen 2) Field Symbols Per T2 Frame Explanation The total number of symbols per T2 frame. This is data symbols plus P1 symbols. Data Cells Per T2 Frame Data cells per T2 frame < subcarriers per symbol X symbols per T2 frame. Maximum is 13920 X 138. This is reduced by pilot subcarriers and L1 signaling cells.
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3‐92 Section-3 Operation October 17, 2013 3.8.12 Status Screens ‐ CTTB/CMMB Modulation Figure 3-86 LPU CTTB Status Screen 1 Table 3‐83 Xmtr Home>Exciter Home>Status>CTTB Modulator (screen 1) Field Explanation ASI Input Loss Primary Display only showing the status of the primary transport stream (ASI 1). Red = loss of transport stream, Green = transport stream present. ASI Input Loss Auxiliary Display only showing the status of the auxiliary transport stream (ASI 2).
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Maxiva UAX October 17, 2013 3‐93 Table 3‐84 Xmtr Home>Exciter Home>Status>CTTB Modulator>Next (screen 2) Field Explanation Output Bandwidth Displays RF Output bandwidth. Presently fixed at 8 MHz. Future options are 7 MHz, 6 MHz or 5MHz. Carriers Displays the number of RF carriers in the output signal. Present values are Multi, Single, or Two Pilot.
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3‐94 Section-3 Operation October 17, 2013 Table 3‐85 Xmtr Home>Exciter Home>Status>CTTB Modulator>Next x2 (screen 3) Field Maximum Network Delay SIP Delay Adjust TD ID Explanation This is an additional delay added in order to be able to easily add a transmitter to the network without having to adjust the delay of all network transmitters. This delay is set in the distribution network control center.
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Maxiva UAX October 17, 2013 3.8.13 3‐95 Status Screens ‐ Analog Figure 3-90 LPU Analog Status Screen 1 Table 3‐87 Xmtr Home>Exciter Home>Status>Analog Modulator) Field Input Input Dev This indicates the (video and audio) Input Switch Mode setting. (Input Deviation) This indicates the amount of variation of the video input from the standard 1 volt peak to peak level. O dB represents 1 volt peak to peak. This value is determined by the formula peak to peak video voltage .
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3‐96 Section-3 Operation October 17, 2013 Figure 3-91 LPU Analog Status Screen 2 Mono & Dual Table 3‐88 Xmtr Home>Exciter Home>Status>Analog Modulator) Field Deviation Sound Carrier 1 Explanation Indicator for Mono, NICAM, Dual, or BTSC sound. This is the numerical value of the frequency deviation of sound carrier 1, in kHz. Deviation Limiter 1 Indicator, for Mono, NICAM, Dual, or BTSC sound. This indication is Active if deviation limiter 1 is active and Non‐active if it is inactive.
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4‐1 Maxiva UAX October 17, 2013 Section-4 Theory 4 4.1 Introduction This section contains detailed descriptions of the Maxiva UAX Series transmitter, its internal sub‐assemblies and any pertinent information regarding external assemblies. This chapter contains five sections: • • • 4.1.1 Transmitter Control System Low Power Unit (LPU) Power Amplifier Block (PAB) Active Logic Symbols Each logic signal has an active and inactive state and a unique name within the system.
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4‐2 Section-4 Theory October 17, 2013 4.2.1 LPU LCD and Front Control Panel The front control panel of the low power unit (LPU) serves as the primary control interface for standalone UAX series transmitters. Additionally, dual drive transmitters may contain a transmitter control unit (TCU) serving as a gateway to the two LPUs. The functioning of the TCU is addressed later in this section.
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Maxiva UAX October 17, 2013 4‐3 Figure 4-2 Control System Interconnect When an LPU is in slave mode, the RS‐485 connection to the external transmitter components is broken at the amp controller board, thereby preventing the reserve LPU from conflicting with the active LPU and corrupting RS‐485 communications. If the TCU is disconnected and the two LPUs remain bussed together, both LPUs will try to function in master mode and there will be signal contention.
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4‐4 Section-4 Theory October 17, 2013 4.2.3 Transmitter Control Unit (TCU) RS485/ILOCK LPU A RS485/ILOCK PA BLOCK(S) LPU B DB25 CUSTOMER I/O CARD TCU INTERFACE CARD CAN TX ROOF INTERLOCK CONNECTION (ASF) CAN DB25 PROCESS CONTROL MODULE (PCM) MASTER CONTROL MODULE (MCM) FRONT PANEL PC (GUI) FRONT PANEL BUTTONS OPTIONAL TRANSMITTER CONTROL UNIT (TCU) Figure 4-3 TCU Block Diagram The TCU (Transmitter Control Unit) is present in dual drive UAX transmitter systems.
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Maxiva UAX October 17, 2013 4.2.3.4 4‐5 Customer IO Card The TCU contains a customer IO card, which provides relay isolated outputs and other remote signal buffering/ conditioning for the parallel remote control interface found at the top of the transmitter cabinet. Interconnection between the customer interface board at the top of the transmitter cabinet and the customer IO card in the TCU is via a pair of fifty‐conductor ribbon cables. 4.2.3.
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4‐6 Section-4 Theory October 17, 2013 LOW POWER UNIT (LPU) ANTENNA SIGNAL PROCESSING MODULATOR UDC ETHERNET CONTROL uC WEB REMOTE INTERFACE ATTENUATOR FILTER DAC FORWARD REFERENCE POWER PAB CURRENT POWER LEVEL RAISE BUTTON FRONT PANEL FPGA FORWARD SAMPLE LOWER BUTTON LCD POWER SET ADC FRONT PANEL REVERSE SAMPLE PAD DETECTOR AMP CONTROL Figure 4-4 RF Power Control Block Diagram An RF sample from a forward directional coupler at the transmitter system output is delivered to a frequency
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Maxiva UAX October 17, 2013 4‐7 Table 4‐1 Power Output with Single Module Removed Failed Module UAX 16PA ‐0.6 dB ‐0.6 dB UAX 24PA ‐0.4 dB ‐0.4 dB UAX 32PA ‐0.3 dB ‐0.3 dB Note The table above provides only a rough estimate of the resulting power level. It does not take into account any minor shifts in DRIVE due to compensating action in the LPU RF power control circuit. 4.
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4‐8 Section-4 Theory October 17, 2013 LPU MODULATOR SECTION SIGNAL PROCESSING BOARD ASI HPA ANALOG LOOPBACK ASI LPA TRANSPORT STREAM SWITCH SMPTE HPB SMPTE LPB ADC DIGITAL PRECORRECTOR FPGA MODULATOR VIDEO DAC VIDEO AUX DIVIDE BY 4 BP SYNC OPTIONAL ANALOG INPUT BOARD AUDIO 1(L+R) AUDIO 2(L+R) COMP AUDIO CONTROL uC USER REMOTE TX I/O INTERFACE LOCAL OSC DAC CLOCK FREQUENCY CONTROL 10MHz TUNE 1 PPS INT 10MHz 54MHz CLOCK PART OF FPGA MODULATOR TX INTERFACE EXCITER RF OUTPUT UP CONVERTER
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Maxiva UAX October 17, 2013 4‐9 For NICAM sound systems, the aux audio inputs are used for modulating the NICAM carrier, whereas the main audio input data are fed to the analog FM modulator. 4.3.3 ASI / SMPTE 310 Inputs For all modulation formats, except analog television, the digital transport stream to the transmitter is coded in ASI or SMPTE format. The following 75‐ohm BNC input connectors are provided on the rear panel of the LPU.
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4‐10 Section-4 Theory October 17, 2013 4.3.6 UDC Upconverter and Amplifier The 140 MHz IF signal is sent to the upconverter circuit of the UDC (Up/Down Converter) board, where it is heterodyned up to the on‐channel frequency and amplified. The output level is 20 dBm (100 mW average) in any digital mode and 23 dBm (200 mW) peak of sync in any analog mode. The on‐channel RF signal is output from the modulator portion of the LPU through a 50‐ohm SMA connector at the rear of the LPU.
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Maxiva UAX October 17, 2013 4‐11 The Power Supply’s output to the LPU is via a ribbon cable to the signal processor board. Power to the other boards is supplied via the signal processor board. The block diagram of the low voltage power supply system is shown in Figure 4‐6 on page 4‐11. The LPU modulator section has a filtered IEC 320/C14 AC input connector. The LVPS Distribution board accepts AC voltages in the range of 100‐240 VAC at 50‐60 Hz. The inputs are fused by a 4 A, 250 V slow blow fuse.
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4‐12 Section-4 Theory October 17, 2013 J1 - 1, 2 +12 V +12VBATT Fault, J1 - 11 High = Fault J1- 5, 6 +5 V +12VBATT Fault, J1 - 13 J1 - 12, UPS Off, High = On J1 - 14, Battery Charge Enable 16 hrs to Charge Battery Charger High = Fault 4.8 VBATT +12VBATT, J1 - 17,18 Inverter PS Mounted, J1 - 10 BT1 4x 1.2V 2.7AH NI-MH Ground, J1 - 3, 4, 7, 8, 9, 15, 16, 19, 20 Figure 4-7 Battery Backup Option Block Diagram 4.3.
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Maxiva UAX October 17, 2013 4.3.12 4‐13 Battery Backup, UPS (Future Option) This UPS version of battery backup board (971‐0051‐012G) will require use of the low voltage PS board 971‐0051‐ 011G. Note Current versions of the low voltage PS board (971-0035-007) use battery backup board assembly (9710035-003G ). The UPS battery backup board interfaces directly to the LVPS board. Three Lithium‐ion cells are used in a series arrangement and provide 9.6 volts at 1200mAh, 12WHr rated.
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4‐14 Section-4 Theory October 17, 2013 4.4 LPU Amplifier Section The LPU amplifier section occupies the lower half of the LPU chassis and is equipped with two power supplies and two power amplifier modules to amplify the RF output signal of the LPU modulator section to a level of approximately 1 to 150 watts, depending on modulation format. The two PA modules are connected in series to increase the amount of gain available to approximately 40dB.
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Maxiva UAX October 17, 2013 4.4.2 4‐15 Multiplexed Devices The Amp Control gathers data from the different devices within the transmitter. The devices that are read are the Power Amplifiers, Fan Interfaces, and Coupler/Detectors. The data is gathered over the analog and digital busses which consist of four lines each. The busses are multiplexed using eight chip select inputs.
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5‐1 Maxiva UAX October 17, 2013 Section-5 Maintenance 5 5.1 Maintenance Philosophy This section contains the maintenance and alignment procedures for the Maxiva UAX Series UHF transmitter. This includes routine maintenance, PA module replacement, PA module repair, transmitter calibration and PC board replacement procedures. The Maxiva UAX transmitter is designed to be easily maintained in the field.
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5‐2 Section-5 Maintenance October 17, 2013 SHEET OR RE-MEASURE THE COUPLER WITH A NETWORK ANALYZER TO DETERMINE THE COUPLING VALUE AT A NEW FREQUENCY. Note The caution above does not apply to internal LPU power measurements, which are frequency compensated. STEP 1 Switch off transmitter via OFF button on TCU, LPU, or web browser screen. STEP 2 Go to the Home screen and select BYPASS for Linear and Non‐Linear. Adjust output filter to new frequency.
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Maxiva UAX October 17, 2013 5‐3 Caution ALWAYS MONITOR REFLECTED POWER AS TRANSMITTER OUTPUT POWER IS INCREASED. HIGH LEVELS OF REFLECTED POWER INDICATE A PROBLEM IN THE OUTPUT COMBINING SYSTEM, FILTER, LOAD, ANTENNA, OR TRANSMISSION LINE. STEP 10 STEP 11 STEP 12 STEP 13 STEP 14 5.3.1.1 Slowly raise the transmitter power until the desired power reading is observed on calibrated power meter connected to directional coupler at transmitter output (or at the front panel on some models).
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5‐4 Section-5 Maintenance October 17, 2013 5.3.2 Changing the Output Power Level Caution WHEN INCREASING THE OUTPUT POWER LEVEL, THE TRANSMITTER MAXIMUM POWER RATING MUST NOT BE EXCEEDED! THE MAXIMUM POWER OUTPUT CAPABILITY FOR A SPECIFIC TRANSMITTER MODEL IS DEFINED ON THE IDENTIFICATION PLATE ATTACHED TO THE TRANSMITTER RACK / CHASSIS. STEP 1 Navigate to SETUP > XMTR POWER SETTINGS > FWD POWER REF setting on the LPU LCD submenu.
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Maxiva UAX October 17, 2013 Figure 5-2 Active Users Screen 5‐5 NetAdmin - User Management Screen Once the desired changes have been made to the NetAdmin‐User Management screen press the Active button to return to the Active Users screen where the current connection information is provided. Access to other screens is not allowed while logged in as an administrator. If access to other screens is desired, the user must log out and then log in as an engineer. 5.
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5‐6 Section-5 Maintenance October 17, 2013 See Section 2.13 on page 2‐21 and following sections for LPU and TCU web browser connection and login information. Harris recommends use of the Chrome or Firefox web browser. Calibrate using the local TCU GUI or web browser by navigating to the LPU UAX Home > Config > System Configuration > Cal ’System Calibration’ screen and press the pull down menu arrow to show the calibration options (see Figure 5‐3 on left below).
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Maxiva UAX October 17, 2013 5‐7 Figure 5-4 Cabinet Pre-Filter Directional Coupler Note Refer to Figure 5-4. Coupler and sample configurations will vary with transmitter size and configuration. 5.4.1 Forward Calibration Overview Factory forward power is calibrated at 10 dB below model power and at 1 dB above model power (e.g., 100W and 1.25kW for a 1.0 kW digital system) to ensure good metering linearity over the full output power range.
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5‐8 Section-5 Maintenance October 17, 2013 Note RTAC precorrection is automatically disabled and power control is automatically switched to manual mode during calibration. 5.4.2 Forward Calibration Procedure STEP 1 Zero and calibrate RMS power meter following the manufacturer’s procedures for specific model. STEP 2 Locate system forward calibration sample port, which should have been measured and labeled at the factory with the coupling factor for your frequency of operation.
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Maxiva UAX October 17, 2013 5‐9 Caution DO NOT DEPRESS THE POWER RAISE BUTTON FOR EXTENDED PERIODS OF TIME WHILE RAISING POWER TO THE SPECIFIED CALIBRATION LEVEL. HOLDING THE RAISE BUTTON IN CAN RESULT IN LARGE POWER OVERSHOOTS THAT COULD DAMAGE THE PA MODULES. ADJUST POWER SLOWLY BY MAKING DISCRETE BUTTON PRESSES WHILE CLOSELY MONITORING THE EXTERNAL POWER METER FOR CHANGE. USE THE DOUBLE UP ARROW GUI ICON TO RAISE POWER IN LARGER STEPS. USE THE SINGLE ARROW ICON FOR SMALLER STEPS.
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5‐10 Section-5 Maintenance October 17, 2013 Recall from the forward power cal procedure that the LPU FWD sample input is also approximately 0dBm at full system output power. This was by design to allow the FWD sample to be used as a convenient signal source for reflected calibration. In general, the calibration is performed by connecting a power meter to the forward coupler used in the system forward calibration and then raising the system output to full power.
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Maxiva UAX October 17, 2013 5‐11 Figure 5-6 FWD cable to REF PWR port with 20dB pad Note The RFLD Sample cable is removed and the FWD sample cable is connected to the REV input through a 20dB attenuator pad. If an attenuator pad was originally present on the REV input, it should also be removed along with the REFLD sample cable). If an attenuator was originally present on the FWD input, it should be moved along with the FWD sample cable to the REV input.
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5‐12 Section-5 Maintenance October 17, 2013 Figure 5-7 FWD cable direct to REF PWR port STEP 8 STEP 9 5.4.4.1 The system will now prompt you to reconnect the cables in their original configuration (FWD to FWD, RFLD to REF) before proceeding. If you forget to perform this step, the system will go into VSWR foldback when you attempt to return to normal operation. Procedure complete.
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Maxiva UAX October 17, 2013 Raise power and calibrate at the first dBm level, then the second dBm level, per the instructions provided on the screen. As of this printing, these levels are 4 dBm (2.5 mW) and 20 dBm (100 mW). On completion of the final calibration procedure, the menu will prompt you to reconnect cables. Select “OK” on LCD screen or Save on web browser to exit the procedure. Select cancel to terminate the calibration process. Procedure complete. STEP 4 STEP 5 STEP 6 5.4.
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5‐14 Section-5 Maintenance October 17, 2013 Caution PAB POWER METERS ARE CALIBRATED AT TIME OF FACTORY FINAL TEST. DO NOT ALTER POWER METER CALIBRATIONS UNLESS POWER READINGS ARE CLEARLY IN ERROR. CONSULT FACTORY TEST DATA SHIPPED WITH TRANSMITTER, PAYING PARTICULAR ATTENTION TO LPU OUTPUT AND PA MODULE CURRENTS, TO DETERMINE IF METERING MISCALIBRATION IS A POSSIBILITY TO BE INVESTIGATED. Connect average power meter to a precision directional coupler temporarily installed at the PAB output.
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Maxiva UAX October 17, 2013 5‐15 Note An alternate to the PAB reflected power calibration is possible if a signal generator is available on site. The generator can be connected directly to the REF IN connector on the PAB rear and simply apply (on frequency) the two signal levels noted above to that port to calibrate the reflected levels. That simplifies the reflected calibration procedure by eliminating the need for a directional coupler. STEP 11 5.5 End of procedure.
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5‐16 Section-5 Maintenance October 17, 2013 5.5.1.1 Troubleshooting Precorrection If the RTAC mode are set to ADAPT, but the Attempts counter does not increment within thirty seconds, there is a problem with the feedback samples. Check the signal levels at the PRE and POST‐FILTER inputs on the back of the LPU. They should be between ‐10dBm and +5dBm (optimum is ‐5 dBm at the inputs on the back of the LPU). Check the RTAC levels on the LPU STATUS > RTAC GUI screen.
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Maxiva UAX October 17, 2013 5‐17 Figure 5-9 5 Station Example for Post-Filter RTAC Samples Multiplexed combining systems can make it difficult for the individual exciters to provide optimal adaptive linear pre‐correction due to interference from other transmitted signals that are present on the combined post‐filter sample. Solutions that allow the linear pre‐correction to be effective are case dependent and vary depending on channels and power levels being combined. 5.5.3.
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5‐18 Section-5 Maintenance October 17, 2013 on the cables will affect RTAC performance. The signal level into each RTAC pre‐filter sample port should be a nominal ‐5 dBm (total average power, measured with power meter, all channels operating) for optimal performance. Turn on one transmitter and adjust to licensed output power.* Set the active exciter DUC/RTAC (screen 3) Down Converter Bandpass Filter to On. The appropriate RTAC Linear Profile must be selected (based on best measured correction).
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Maxiva UAX October 17, 2013 5.6 5‐19 Analog Power Calibrations Analog power calibration differs from digital power calibration. Use the following information when calibrating a transmitter operating in analog mode (NTSC/PAL/SECAM television). Equipment needed: • • • • • • HP EPM‐series Power Meter and 8482H Power Sensor, or Agilent E4418B and Type “N” to SMA adapter (or equivalent). Meter should be capable of displaying measured values in Watts or in dBm.
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5‐20 Section-5 Maintenance October 17, 2013 Note Re-calibration is not typically required in the field once the transmitter is in service. Re-calibration would be indicated only for verification, frequency change, or after major service work involving replacement of one or more power metering components has been performed. Caution THE REFLECTED POWER FAULTS ARE DISABLED WHEN CALIBRATING POWER. EXIT FROM THE CALIBRATION PROCEDURE WHEN CALIBRATION IS COMPLETE.
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Maxiva UAX October 17, 2013 5‐21 Note Refer to Figure 5-11. Coupler and sample configurations will vary with transmitter size and configuration. Prior to calibration set the desired system power output in kW (peak vision power). If the system has dual LPUs, the system power is set using the TCU ’Configuration Screen’ in 3.5.3 on page 3‐13. If there is no TCU, see LPU ’System Configuration Screen’ in Section 3.6.3 on page 3‐23. Refer to ’Forward Power Reference’.The value must be greater than zero.
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5‐22 Section-5 Maintenance October 17, 2013 5.6.1.1 Average and Peak Conversion Formulae and Examples Average Power = Peak Visual Power * Factor Peak Visual Power = Average Power / Factor Example 1: Calculate the average power of a System M transmitter operating at 1000W peak visual with an aural injection level of ‐10dB. Factor for System M with ‐10dB aural injection = 0.695 Average Power = 1000W * 0.
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Maxiva UAX October 17, 2013 5‐23 Figure 5-12 LPU FWD & REF Sample Inputs This value of 0dBm also corresponds to the high point calibration value for the system reflected (REF PWR) input. System reflected is calibrated over a range corresponding to 30dB…10dB return loss, which corresponds to reflected sample inputs of ‐20dBm for the low point and 0 dBm for the high point after factoring in reflected coupling value, cabling, pad, and splitter (if installed).
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5‐24 Section-5 Maintenance October 17, 2013 Figure 5-15 Analog Setup Screen 1 Analog Setup Screen 2 Figure 5-16 Analog Setup Screen 3 5.6.2.1 Preliminary Forward Cal Procedure The following procedure is done initially to ensure that the transmitter will produce the desired TPO. The Final Analog Cal Procedure Section 5.6.2.2 on page 5‐26 must also be performed to ensure the transmitter will meet analog specifications at the 100% sync level.
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Maxiva UAX October 17, 2013 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 STEP 11 5‐25 Connect the video source to the video input of the transmitter. Set video source to black picture with zero setup. If dual LPUs are in use set the TCU Driver Control to Manual. Select the LPU to be calibrated as the active LPU. Press and hold the Lower button for 30‐40 seconds to reduce transmitter RF output at turn‐on. Use the TCU Lower button for dual systems. Use the LPU Lower button if a single LPU is present.
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5‐26 Section-5 Maintenance October 17, 2013 5.6.2.2 Analog Final Fwd Cal Procedure STEP 1 Calibrate the averaging power meter per manufacturer’s instructions. STEP 2 Connect the power meter to the forward sample on the pre‐filter directional coupler. Enter the coupler offset value (dB) into power meter to allow direct power readings. NOTE: The power meter reads average power. Conversion to peak visual power is required. Set the power meter to read in watts.
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Maxiva UAX October 17, 2013 STEP 16 5‐27 LOW POWER CALIBRATION (10%) ‐ Using the UP arrows (GUI) or Power Raise (front panel buttons) on the LPU, increase the transmitter power until the desired level is indicated on the power meter. Refer to Adjust Output Power sub window in Figure 5‐13 on page 5‐23. a. The small up arrow box is for fine increments and the large box is for larger steps. It may also be necessary to utilize the down arrow boxes. Several adjustments will be necessary. b.
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5‐28 Section-5 Maintenance October 17, 2013 5.6.3.1 Analog System Reflected Cal Procedure Prior to system reflected power calibration, forward power calibration must be performed or confirmed. Zero and calibrate the RMS power meter, following the manufacturer’s procedures for specific model being used. STEP 1 Note The power meter reads average power. Conversion to peak visual power is required. See Section 5.6.1 on page 5-21 for methodology.
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Maxiva UAX October 17, 2013 5‐29 Figure 5-17 FWD cable to REV port with 20dB pad Note The RFLD Sample cable is removed, and the FWD sample cable is connected to the REV input through a 20dB attenuator pad. If an attenuator pad was originally present on the REV input, it should also be moved along with the REV sample cable) If an attenuator pad was originally present on the FWD input, should be moved along with the FWD sample cable to the REV input.
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5‐30 Section-5 Maintenance October 17, 2013 Figure 5-18 FWD cable direct to REF port STEP 15 STEP 16 5.6.3.2 The system will now prompt you to reconnect the cables in their original configuration (FWD to FWD, RFLD to REV) before proceeding. If you forget to perform this step, the system will most likely immediately go into VSWR foldback when you attempt to return to normal operation. Procedure complete.
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Maxiva UAX October 17, 2013 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 STEP 11 STEP 12 STEP 13 STEP 14 5.6.5 5‐31 If dual LPUs are in use set the TCU Driver Control to Manual. Select the LPU to be calibrated as the active LPU. Turn transmitter on by pressing the On button. Use the TCU On button for dual systems. Use the LPU On button if a single LPU is in use. Set both linear and nonlinear RTAC to Bypass.
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5‐32 Section-5 Maintenance October 17, 2013 STEP 10 STEP 11 STEP 12 STEP 13 5.6.6 Press LPU OFF button. On the front screen select SETUP>SYSTEM SETTINGS>MODEL NO. and then use the up or down arrows to change the model no. to the previous value. Remove coupler and set transmitter back to normal operating condition. End of procedure. Calibrating PAB Power PAB power levels can be found in the LPU LCD by navigating to STATUS > PAB# > FWD PWR or REF PWR.
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Maxiva UAX October 17, 2013 5.7 5‐33 Pre‐correction for Analog TV The precorrection for an analog transmitter is a fixed nonlinear predistortion and linear equalization with automatic setup. The procedure described below automatically calculates the precorrection for an installed system. Once the precorrection is calculated, it can be stored in the setup memory of the exciter.
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5‐34 Section-5 Maintenance October 17, 2013 STEP 17 STEP 18 STEP 19 STEP 20 STEP 21 STEP 22 STEP 23 STEP 24 STEP 25 STEP 26 STEP 27 Verify that a forward power sample from the after the final amplifier but before the filter is connected to the POST‐FILTER port on the back of the LPU. The rms level of the sample should ideally be approximately ‐5dBm. Verify that transmitter output is connected to a quality 50 ohm load. Verify that the linear RTAC mode is set to BYPASS.
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Maxiva UAX October 17, 2013 5.7.2 5‐35 Storing Precorrection STEP 1 Go to the RTAC ‐ Stored Correction Sets Screen, Figure 5‐19. STEP 2 Enter a name (up to sixteen characters) for the desired set. Press the SAVE button to store the correction. Figure 5-19 RTAC Stored Correction Sets Screen STEP 3 Note The correction which is currently applied will be stored.
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5‐36 Section-5 Maintenance October 17, 2013 5.8.3 Date and Time Settings The TCU date and time settings can be adjusted using the local GUI screen. See Figure 3‐12 on page 3‐12 which shows the local GUI service screen and Table 3‐6 on page 3‐13, which explains the date and time setting. 5.8.4 Installing/Changing the TCU PCM Battery Transmitter control units (TCUs) are shipped as components in several different Harris transmitter models.
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Maxiva UAX October 17, 2013 STEP 3 Locate the battery holder on the PCM‐2 card. Location is shown in Figure 5‐ 21. STEP 4 Use a small flat blade screw driver to gently pry open the battery hold down clip while sliding the battery under the clip. The + side of the battery must installed closest to the battery clip, i.e. the + side must point away from the board. The installed battery is shown in Figure 5‐21. Close front panel. Reapply AC power. Reset time and date as needed. See section 5.8.
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5‐38 Section-5 Maintenance October 17, 2013 STEP 7 STEP 8 STEP 9 STEP 10 STEP 11 STEP 12 STEP 13 5.8.6 Remove the TCU top to gain easier access to the TCU cards. Remove connectors from the rear of the card that is being changed. Use a short #2 Phillips screwdriver to remove the mounting screw from the back of each module (near the bottom). Lift the board out of the slot and replace with new board. Reverse the steps to reconnect and reinstall the TCU.
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Maxiva UAX October 17, 2013 5‐39 Each time the PCM‐2 software is updated the full backup should be performed. Each time changes are made to the System Service, System Network, SNMP Config, or NTP screens the "Copy config to backup" step should be performed. Should a micro‐SD card fail for some reason the transmitter will issue a warning "Running on Backup Firmware" indicating that it is operating on the software stored on the PCM‐2 on‐board computer.
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5‐40 Section-5 Maintenance October 17, 2013 The Master dip switch (S4) should have position 1 set to On if the cabinet is the main PA cabinet in single or multiple cabinet system or set to Off if it is a secondary cabinet in a multiple PA system. 5.8.8 TCU PS Module Maintenance and Replacement The TCU PS Module (front) is shown in Figure 5‐20 on page 5‐36. The PS module supplies the required voltages to the TCU cards and front panel. The PS module is not hot pluggable.
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Maxiva UAX October 17, 2013 5.8.9 5‐41 TCU Air Filters The TCU front panel contains two filters (943‐5600‐109) that should be inspected periodically for dust buildup. Lower the TCU front panel, use a #2 Phillips screwdriver to remove the four TCU mounting screws, and pull the TCU out of the rack using built in slides. Then use a #1 Phillips screwdriver to remove the six screws that hold the front panel to the front panel chassis.
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5‐42 Section-5 Maintenance October 17, 2013 Figure 5-25 TCU Display Reset Switch The panel PC display unit can also be rebooted in the event of a problem by switching it off for fifteen seconds and then back on. An ON/OFF rocker switch is located just behind the TCU front panel assembly and can be accessed by pulling the display downward and reaching into the opening behind the panel.
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Maxiva UAX October 17, 2013 5‐43 Figure 5-26 LPU Rear Panel View 5.9.2 LPU Filter Replacement The UAX LPU air filters should be inspected periodically and cleaned/changed as needed to ensure maximum cooling efficiency. Clean/replace filters more often in dusty environments. 12 V Fan 12 V Fan Filter Retainer & Filter Figure 5-27 LPU Air Filter (hinged door) Remove the LPU filter (Harris part number 9435602692) by loosening the four thumb screws on the front panel and lowering it.
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5‐44 Section-5 Maintenance October 17, 2013 5.9.3 LPU PA and PS Module Replacement Note The module(s) in the LPU chassis are hot-pluggable. It is not necessary to remove AC mains power before removing or inserting a module. If active the LPU will go off air upon removal of a module. STEP 1 Open LPU chassis front door by loosening the four thumbscrews on door. STEP 2 Loosen the retaining thumbscrews for the affected module. Remove module.
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Maxiva UAX October 17, 2013 5.9.6 5‐45 LPU Cleaning Occasionally the LPU circuit boards should be cleaned. All precautions against static electricity should be observed. The technician should be grounded, either through conductive shoes or through a static grounding strap. The LPU should be powered down before the cleaning process is started. A vacuum cleaner should be used to remove dust from the assemblies.
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5‐46 Section-5 Maintenance October 17, 2013 Figure 5-28 System Setup Screen - left 5.9.8 Remote Comm Ethernet Screen - right LPU ISP (In‐System Programming) Updating the LPU software is accomplished by accessing the ISP screen via web browser PC connection. Connection to the LPU via the front Ethernet port is recommended. The LPU software file must be stored on the PC before commencing the update procedure.
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Maxiva UAX October 17, 2013 Figure 5-30 File Uploading - left 5‐47 Program - Right Once the file upload is complete, the screen shown in Figure 5‐30 (right) will appear. Select Program to save the uploaded file to flash memory. STEP 4 Note Programming the LPU will cause a temporary communication interruption and loss of RF output . That is, the LPU will be off–air during a brief period near the end of the update procedure. STEP 5 The user will be prompted for confirmation before programming begins.
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5‐48 Section-5 Maintenance October 17, 2013 5.9.9 Alternate Software Update Procedures Interruptions in the ISP software update process may result in an unusable GUI interface. The following procedures can be used if the GUI software interface becomes inoperable. 5.9.9.1 Direct Software Update The LPU software file (.s19 extension) must be stored on the PC before commencing the update procedure.
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Maxiva UAX October 17, 2013 5‐49 Figure 5-33 Program Box Select [Program]. The address bar display will change to 192.168.117.88/ Program. After about 5 minutes the display will change to read Programming Flash & LPU Reboots. Wait for the LPU reboot to occur (LEDs on front will blink and fans will slow) then close the browser session. Procedure complete. STEP 7 STEP 8 STEP 9 5.9.9.
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5‐50 Section-5 Maintenance October 17, 2013 STEP 4 STEP 5 Press OK to exit the setup screen. Press the PC Enter key quickly three times in succession and the LPU TeraTerm screen 1 shown in Figure 5‐35 will be displayed confirming the serial connection. Figure 5-35 Teraterm Screen 1 Caution DO NOT MAKE ANY CHANGES TO THESE SCREENS. STEP 6 Hold down the escape (ESC) key and unplug (or turn off the LPU AC breaker) for 5 seconds and then reconnect.
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Maxiva UAX October 17, 2013 5‐51 Figure 5-37 Teraterm Ethernet Screen Note The IP address indicated on line (3) is the IP address for the ethernet port on the front of the LPU. The front ethernet port on the LPU has DHCP enabled and will assign an IP address to the connected PC / laptop. Note The IP address indicated on line (6) is the IP address for the ethernet port on the rear of the LPU.
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5‐52 Section-5 Maintenance October 17, 2013 STEP 11 STEP 12 STEP 13 STEP 14 5.9.10 Upon completion of the Submit process the [Program] box will display (see Figure 5‐33 on page 5‐49). Select [Program]. The address bar display will change to 192.168.117.88/ Program. After about 5 minutes the display will change to read Programming Flash & LPU Reboots. Wait for the LPU reboot to occur (LEDs on front will blink and fans will slow) then close the browser session. Procedure complete.
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Maxiva UAX October 17, 2013 5‐53 Figure 5-40 Save Settings File Window In order to restore the settings previously saved in the file, follow the process described in "5.9.10 Saving and Recalling LPU Settings" on page 5‐52. Use the file saved in the previous step as the file to upload. 5.9.11 LPU Screen Captures LPU GUI screens can easily be captured using the Alt ‐ Print Screen keys on a typical Windows PC. The procedure is as follows. STEP 1 Connect a computer to the LPU.
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5‐54 Section-5 Maintenance October 17, 2013 ) • Figure 5-41 LPU Date and Time Battery Location The part number for the date and time battery is 660‐0093‐000 (CR1032) for older models and 660‐0054‐000 (CR2032) for newer models (shown above). 5.9.12.1 Setting LPU Date and Time after Battery Replacement Use the following procedure to set the date and time. STEP 1 Use the web browser to log into the LPU using the front or rear Ethernet connectors. STEP 2 Go to LPU Setup > LPU Setup screen.
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Maxiva UAX October 17, 2013 5‐55 Battery Backup Figure 5-42 Battery Backup (UPS) Location The optional battery backup kit 9710051012G includes: • • Qty 4, 3020803006, Screw, Mach M3‐0.5 X 6 SEMS Qty 1, 6600179000, PWA, 9.6V Battery Pack Instructions: STEP 1 If system contains dual LPUs manual mode and make the LPU that will have the battery change the inactive unit. STEP 2 Disconnect AC mains power from the LPU chassis. Warning REMOVE ALL POWER TO THE LPU BEFORE PERFORMING THE FOLLOWING PROCEDURE.
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5‐56 Section-5 Maintenance October 17, 2013 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 STEP 11 Install the battery backup board and tighten the four Phillips mounting screws. The battery backup board, standoffs, and mounting screws are shown in Figure 5‐42 on page 5‐55. Replace the LPU cover and tighten hardware. If rack mounted, slide the LPU into the rack. Reconnect all cables to the rear of the LPU and tighten connectors as required. Restore AC mains power to the LPU.
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Maxiva UAX October 17, 2013 5‐57 Figure 5-43 Signal Processor Board Connections STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 STEP 11 888‐2693‐004 Use a #2 Phillips screwdriver to remove the LPU top cover (6 screws). Use a #1 Phillips screwdriver to remove the T2 901‐0215‐155G expansion board if present (6 screws). If there is no expansion board remove the clear Lexan cover and retain for reuse. Remove three ribbon cables that are connected to J23, J24 & J25 on the sides and front of the signal processor board.
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5‐58 Section-5 Maintenance October 17, 2013 Figure 5-44 LPU Rear Panel Fittings STEP 12 STEP 13 STEP 14 STEP 15 STEP 16 STEP 17 STEP 18 STEP 19 STEP 20 5.9.15 Use a 9/16" wrench to remove the nuts from the 1PPS, 10 MHz, & ASI Monitor connectors on the rear of the LPU. Use a 3/16" nut driver to remove the screw lock fittings from the RS232 and CAN connectors on the rear of the LPU.
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Maxiva UAX October 17, 2013 5‐59 Caution FOLLOW APPROPRIATE ESD PROCEDURES TO INSURE PROPER GROUNDING BEFORE HANDLING PRINTED CIRCUIT BOARDS. Note Refer to Figure 5-43 on page 5-57 and Figure 5-44 on page 5-58 to locate fittings during the board replacement procedure that follows. STEP 1 If the old signal processor board has not been removed from the LPU follow the removal procedure outlined in Section 5.9.14 on page 5‐56. Then continue with STEP 2 below.
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5‐60 Section-5 Maintenance October 17, 2013 STEP 17 STEP 18 STEP 19 STEP 20 STEP 21 STEP 22 5.9.16 Use a #1 Phillips screwdriver to install the T2 901‐0215‐155G expansion board if required 6 screws). If there is no expansion board install the clear Lexan cover. Check all connections and hardware to be sure it is secure. Use a #2 Phillips screwdriver to install the LPU top cover (6 screws). Install the LPU into the rack as required. Perform a functional check to confirm proper operation of LPU.
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Maxiva UAX October 17, 2013 5‐61 Pins 1 and 3 normally have 12 V applied (via pin 2) but either 1 or 3 are grounded briefly to make the switch change positions. Measuring 12 V between case and pins 1, 2 & 3 is normal except during a switch. The relay can be switched manually if pins 1 or 3 are momentarily grounded to the case with a screwdriver or jumper. If the TCU is off or if the TCU has failed the 12 volts will not be present on pins 1, 2 or 3 and LPU switching will be disabled.
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5‐62 Section-5 Maintenance October 17, 2013 Isolation resistors in the PA splitter and combiner assemblies absorb any reflected power resulting from imbalances due to modules being removed from service. The number and location of PA modules will vary depending on transmitter model. See "Figure 2‐9 PS and PA Module Locations" on page 2‐14 for locations and numbering of PA and PS models.
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Maxiva UAX October 17, 2013 1 2 3 SECONDS 4 5 6 5‐63 7 MODULE REMOVED PA INTERLOCK PA BIAS FAULT RESTRIKE SIGNAL RESTRIKE FAILED ON COMMAND (PRESSING THE ON COMMAND) Figure 5-47 Module Removal and Restrike Process 5.10.2 PA Module Installation To install a PA Module: STEP 1 Inspect the connectors on the rear of the module to be sure there is no damage to the electrical connectors.
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5‐64 Section-5 Maintenance October 17, 2013 Replace the front panel and finger tighten the fasteners. Do not use a screwdriver to tighten the thumbscrews. End of procedure. STEP 7 STEP 8 5.10.3 Operation With Inoperative Modules The PAB PA module reject loads, located inside the PAB module combiner, are sized with enough margin to allow operation under any imbalance condition that may be encountered.
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Maxiva UAX October 17, 2013 FET 2 Gate 1 5‐65 FET 1 Gate 1 FET 2 Gate 2 FET 1 Gate 2 Figure 5-48 FET Gate ID A measured resistance between 13 and 15 K ohms indicates FET is OK. If significantly lower than 13K ohms (say 10K ohms or less) the FET has probably failed. In this case a pallet change is indicated. See Section 5.10.8 on page 5‐65 for details. 5.10.
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5‐66 Section-5 Maintenance October 17, 2013 FET 1 Pallet FET 2 Case 3 3 Figure 5-49 PA Module (cover removed, numbers refer to steps) STEP 3 Remove two Phillips pan head screws from the RF output connector mount STEP 4 on the output side of the module. These screws attach through stand‐offs on the module case. These screws must be reinstalled with a captive lock and flat washer. Remove three Allen screws from the output (connector) side of the case.
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Maxiva UAX October 17, 2013 5‐67 5 LED’s Figure 5-51 PA Module Front Lift up on the outer case to separate it from the PA module heat sink assembly. The lower lip of the outer case has spring finger material installed. Take care to remove the case gently so as not to damage the spring fingers. The connector should slide free of the case as the case is lifted. Removal of the outer case allows access to the pallet.
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5‐68 Section-5 Maintenance October 17, 2013 the factory. This wire assembly should be replaced upon reassembly and not reused. Note On reassembly the wire needs to be replaced and the two leads must not touch any component on the board other than the two points where they are soldered. The pallet board should be placed over the post and tightened down before soldering the wire to the post. STEP 11 Remove the Phillips screw that holds the output coax in place. Take note of the position of the coax.
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Maxiva UAX October 17, 2013 STEP 18 STEP 19 STEP 20 STEP 21 STEP 22 STEP 23 STEP 24 STEP 25 STEP 26 STEP 27 STEP 28 STEP 29 STEP 30 STEP 31 5‐69 Carefully seat the new pallet on the backplane assembly. The connector between the pallet and the backplane must be aligned and the halves fully seated. Install the five (5) pallet hold down screws (Phillips). Don’t tighten. Install the four (4) center pallet hold down screws (Allen). Tighten the five (5) pallet hold down screws (Phillips).
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5‐70 Section-5 Maintenance October 17, 2013 5.10.10 Changing a PAB Air Filter The PAB air filters should be inspected periodically and cleaned/changed as needed to ensure maximum cooling efficiency. Clean/replace filters more often in dusty environments. The filter (9435602691) can be removed first loosening the four thumb screws on the front door assembly and then lowering the door. Once the door is open the filter retainer assembly can be removed.
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Maxiva UAX October 17, 2013 5‐71 Reinstall by reversing the order of the above steps. STEP 6 Note Do not use a screwdriver to tighten the front panel thumbscrews. Caution DRY THE FILTER MATERIAL THOROUGHLY BEFORE REINSTALLATION. STEP 7 5.11 End of procedure. Amp Control Boards (PAB and LPU) It is important to note that Amplifier Control Board and PAB units are individually addressed by using S1 on the Amplifier Control Boards (see Figure 5‐56 on page 5‐73 and Figure 5‐58 on page 5‐74 to locate S1).
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5‐72 Section-5 Maintenance October 17, 2013 Figure 5-55 Amp Control Board in 500W PAB Figure 5‐55 is a top view of the PAB with cover removed. The locations of the amp control board , PA backplane, splitter, power supply, combiner and PA backplane locations are provided. Copyright ©2013, Harris Broadcast WARNING: Disconnect primary power prior to servicing.
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Maxiva UAX October 17, 2013 5‐73 Figure 5-56 Switches/Jumpers on PAB Amp Control Board Figure 5‐56 is a top view of the amp control board inside the PAB chassis. S1 is must be set for component ID. Refer to Table 5‐2 on page 5‐75 for S1 settings. 888‐2693‐004 WARNING: Disconnect primary power prior to servicing.
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5‐74 Section-5 Maintenance October 17, 2013 Figure 5-57 Amp Control Board in LPU Figure 5-58 Amp Control Board Removed from LPU Copyright ©2013, Harris Broadcast WARNING: Disconnect primary power prior to servicing.
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Maxiva UAX October 17, 2013 5.11.0.1 5‐75 Amp Control Board S1 Settings Refer to Figure 2‐9 on page 2‐14 for PAB locations. Table 5‐2 S1 Settings on Amp Control Boards 5.11.0.2 S1 Position Component 1 LPU 2 PAB 1 3 PAB 2 4 PAB 3 5 PAB 4 Amp Control Board S2 Setting The switch S2 on the LPU amp control board is shown in Figure 5‐58 on page 5‐74. Switch S2 on the PAB amp control board is shown in Figure 5‐56 on page 5‐73. In all cases the proper switch position is toward J2. 5.11.0.
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5‐76 Section-5 Maintenance October 17, 2013 5.13 Typical Test Equipment The following equipment may be helpful in maintaining and monitoring the UAX transmitter system. The equipment listed or equivalent equipment is suggested.
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6‐1 Maxiva UAX October 17, 2013 Section-6 Diagnostics 6 6.1 Introduction This section contains diagnostic and troubleshooting information for the UAX series UHF transmitter. Included is a description of faults which can be displayed via the transmitter front panel LCD, web interface, or TCU (transmitter control unit) GUI (graphical user interface).
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6‐2 Section-6 Diagnostics October 17, 2013 Table 6‐1 PA & PS LEDs Marking Normal Faulted Color 1. Power Supply AC OK N/A Green Off Green when AC is applied and within range. 2. Power Supply DC OK N/A Green Off Green when DC output is enabled and within range. 3. Power Supply Fault N/A Off Red Red when internal over temp. or over current sensed. 4. Power Amp Undervoltage UV Off Red Red when PA input voltage <46V. 5. Power Amp Overvoltage OV Off Red Red when PA input voltage >53V.
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Maxiva UAX October 17, 2013 6‐3 Figure 6-2 PA LEDs - left No Faults - right Under Voltage Fault Figure 6-1 PAB LEDs (Control, Fan, & VSWR Summary Faults Active) 6.3 Web Browser Fault Log The web browser allows access to listings of any faults or warnings that have occurred. The TCU event log is accessed by pressing the Event Log soft button on the right side of the TCU Home screen. The LPU fault log is accessed by pressing the Fault Log soft button on the right side of the LPU Exciter Home screen.
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6‐4 Section-6 Diagnostics October 17, 2013 b. Set ‐ Time (24 hour format) and date (month, day, year) that the fault occurred. c. Clear ‐ Time and date that the fault was cleared. If the fault is still active, the Clear field will be blank. d. Name ‐ Name and description of the fault. The Fault Log is color coded as follows: • Grey – Inactive Faults/Warnings • Yellow – Active Warnings • Red – Active Faults Function Buttons: a. Reset Log (LPU) or Clear Log (TCU) ‐ Erases all inactive faults in the log.
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Maxiva UAX October 17, 2013 6‐5 These are the module faults which will be allowed three strikes: • • • • • 6.5 PA Fet 1 Over Current PA Fet 2 Over Current PA 48VDC Over Voltage PA 48VDC Under Voltage PA Over Temperature Fault Tables The following tables provide a listing of Maxiva Transmitter faults along with a brief description, the fault level or threshold and the action taken by the transmitter. 6.5.
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6‐6 Section-6 Diagnostics October 17, 2013 Table 6‐2 UDC Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Action Set fault; mute RF; disable the +20VDC supply to the UDC output amplifier Status/ UDC Status/ UDC Upconverter Temperature Fault UDC Over Temperature Fault System and Mute LEDs red. UDC Temperature below 75.0C UDC Temperature >= 75.0C. Fault will not clear until temperature goes below 70.
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Maxiva UAX October 17, 2013 6‐7 Table 6‐4 MODFPGA Modulation Specific Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action Screen/ Tab DVB (modulation specific) ASI 1 HP ASI 1 LP ASI 2 HP ASI 2 LP Indicates error on ASI 1 HP in MOD FPGA for DVB Indicates error on ASI 1 LP in MOD FPGA for DVB Indicates error on ASI 2 HP in MOD FPGA for DVB Error on ASI 2 LP in MOD FPGA for DVB System LED red. System LED red. System LED red. System LED red.
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6‐8 Section-6 Diagnostics October 17, 2013 Table 6‐4 MODFPGA Modulation Specific Faults Fault Log Message Fault Description Modulator Input Frame Timing Unsync Indicates input circuit has not synchronized in DVB MOD FPGA System and Mute LEDs red. Modulator Input A Indicates input A is present in MOD FPGA. ATSC ASI HPA Modulator Input C Nominal Value/ Scaling Trip Level Action DVB MOD FPGA output processing reset line low DVB MOD FPGA output processing reset line high Set fault and mute RF.
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Maxiva UAX October 17, 2013 6‐9 Table 6‐4 MODFPGA Modulation Specific Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action MUTE: SFN FIFO Sequence/Parity Error FPGA SFN FIFO sequence or parity error System LED red. FPGA SFN FIFO sequence error and parity error bits not set FPGA SFN FIFO sequence error or parity error bits set AND automute = true Set fault. MUTE: SFN Buffer Underflow/ Overflow FPGA SFN FIFO overflow System LED red.
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6‐10 Section-6 Diagnostics October 17, 2013 Table 6‐4 MODFPGA Modulation Specific Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action Modulator No Timestamp (FF FFFF) Indicates timestamp is missing on valid input 2 System LED red. Timestamp is present Input is present, but timestamp is missing on input 2 Set fault. Modulator PFRU Undisciplined Indicates PFRU PLL is not disciplined for DAB System LED red.
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Maxiva UAX October 17, 2013 6‐11 Table 6‐4 MODFPGA Modulation Specific Faults Fault Log Message Fault Description Nominal Value/ Scaling Trip Level Modulator Input A Indicates input A is present in MOD FPGA. ATSC ASI HPA System LED red. TS Input LED yellow or red. MPEG sync indicator =1 MPEG sync indicator = 0 AND input A selected for primary or auxiliary input Set fault. Modulator Input C Indicates input C is present in MOD FPGA. ATSC ASI LPB System LED red. TS Input LED yellow or red.
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6‐12 Section-6 Diagnostics October 17, 2013 Table 6‐4 MODFPGA Modulation Specific Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action Screen/ Tab Analog (modulation specific) Modulator Input Signal Loss Modulation Mute Indicates required inputs are not present in MOD FPGA. Indicates modulator FPGA has muted System and Mute LEDs red. Depends on modulation standard. Relevant inputs present. Analog: Set fault and mute RF.
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Maxiva UAX October 17, 2013 6‐13 Table 6‐6 DSP Faults Fault Log Message Fault Description Nominal Value/ Scaling Front Panel LEDs Action Trip Level Adaptive Correction Linear DSP reports HPF feedback invalid (required for linear RTAC) System LED red. DSP reports HPF feedback ok. DSP reports HPF feedback invalid. Set fault. Adaptive Correction Nonlinear DSP reports HPA feedback invalid (required for non‐ linear RTAC) System LED red. DSP reports HPA feedback ok.
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6‐14 Section-6 Diagnostics October 17, 2013 Table 6‐7 PFRU Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action Frequency Ref. 1PPS External 1 pps is not present System LED orange. External 1pps present External 1pps not present when selected as reference Set warning. Frequency Ref. 10MHz External 10 MHz is not present System LED orange. External 10 MHz present External 10 MHz not present when selected as reference Set warning.
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Maxiva UAX October 17, 2013 6‐15 Table 6‐8 MCU & SYS Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action SYSTEM Battery Pack Fault if under voltage System LED red. +12 V DC 20% below nominal Set fault. SYSTEM Fan Tach below minimum RPM Fan tach low for fan 1 System and Drive Chain LED red. 2400 rpm < 2400 rpm Set fault. SYSTEM Fan Tach below minimum RPM Fan tach low for fan 2 System and Drive Chain LED red.
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6‐16 Section-6 Diagnostics October 17, 2013 Table 6‐8 MCU & SYS Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action SYSTEM Fan Tach below minimum RPM Fan tach low for fan 2 System and Drive Chain LED orange. Between 2880 rpm and 23040 rpm (2400 rpm < fan tach < 2880 rpm) OR (fan tach > 23040 rpm) Set warning. SYSTEM Foldback active Power fold back warning System LED orange. Power foldback = 0 Power foldback > 0 Set warning.
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Maxiva UAX October 17, 2013 6.5.2 6‐17 UAX LPU PA Faults Table 6‐9 LPU PA Faults Nominal Value/ Scaling Screen/ Tab Fault Log Message Fault Description LPU Nonresponsive No response to RS485 data request Drive Chain LED red. NA No Heartbeat Set fault. LPU CRC Error CRC error in RS485 protocol Drive Chain LED red. NA CRC Error Set fault. LPU Data Error RS485 protocol error Drive Chain LED red. NA Incorrect number of Bytes transmitted, or incorrect message ID Set fault.
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6‐18 Section-6 Diagnostics October 17, 2013 Table 6‐9 LPU PA Faults Fault Log Message LPU Fan1 LPU Fan2 LPU Fan3 LPU Fan3 LPU Fan4 LPU Fan4 LPU Fan5 LPU Fan5 LPU PS1 Fault Description Fan tach low for fan 1 Fan tach low for fan 2 Fan 3 Fault Fan 3 Fault Fan 4 Fault Fan 4 Fault Fan 5 Fault Fan 5 Fault Power Supply 1 Fault Copyright ©2013, Harris Broadcast Front Panel LEDs System and Drive Chain LED red. System and Drive Chain LED red. Drive Chain LED red. Drive Chain LED red.
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Maxiva UAX October 17, 2013 6‐19 Table 6‐9 LPU PA Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/ Scaling Trip Level Action LPU PS2 Power Supply 2 Fault Drive Chain LED red. NA Power Supply internal over‐ voltage, over‐ temperature, AC input failure, or DC output failure LPU VSWR Fault VSWR fault Drive Chain LED red.
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6‐20 Section-6 Diagnostics October 17, 2013 6.5.3 UAX PAB Faults Table 6‐10 PAB Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/Scaling Action Trip Level Screen/ Tab PAB1 Nonresponsive No response to RS485 data request Power Amp LED red. NA No Heartbeat Set fault. PAB1 CRC Error CRC error in RS485 protocol Power Amp LED red. NA CRC Error Set fault. PAB1 Data Error RS485 protocol error Power Amp LED red.
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Maxiva UAX October 17, 2013 6‐21 Table 6‐10 PAB Faults Fault Log Message Fault Description Front Panel LEDs Nominal Value/Scaling Trip Level Action Screen/ Tab PAB1 PA4 Undervoltage PA 4 48VDC under voltage Power Amp LED red. 50VDC <40VDC Set fault; Transmitter Restrike UAX Home / Power Amps / PA Blk 1 PAB1 PA4 Id2 Overcurrent PA 4 Fet 2 Overcurrent Power Amp LED red.
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6‐22 Section-6 Diagnostics October 17, 2013 Table 6‐10 PAB Faults Fault Log Message PAB1 Fan4 PAB1 PS1 PAB1 PS2 Fault Description Front Panel LEDs Power Amp LED red. Fan 4 Fault Power Supply 1 Fault Power Amp LED red. Power Supply 2 Fault Power Amp LED red. Nominal Value/Scaling Trip Level Action TBD Low Current Set fault. UAX Home / Power Amp / Fans NA Power Supply internal over‐voltage, over‐ temperature, AC input failure, or DC output failure Set fault.
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7‐1 Maxiva UAX October 17, 2013 7 7.1 Section-7 Parts List Replacement Parts Note Items listed below may not be fitted in all models.
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7‐2 Section-7 Parts List October 17, 2013 Table 7‐1 XMTR, 2000W, 44RU, DUAL LPU, W/TCU 9950068908G Item Description KIT, RF SYSTEM, NO FILTER Part Number 9710041017G EQ ELBOW/90 1‐5/8U (CU) 6200631000 COUPLING 1‐5/8U (CU) 6200646000 CONN, BULLET 1‐5/8 6200694000 CONNECTOR, MOD 1‐5/8 EIA 9172142027 INSULATOR, 10KW COMB 1‐5/8 9172435033 COUPLER, UHF 1‐5/8, 4 PORT,40DB,54DB,54DB,54DB 9710023158 XMTR, UAX2000 DIGITAL ‐ UAX3000 ANALOG, DUAL LPU W / TCU IN 44RU RACK 9810031070G ATTEN, SMA, 6DB,
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Maxiva UAX October 17, 2013 7‐3 Table 7‐1 XMTR, 2000W, 44RU, DUAL LPU, W/TCU 9950068908G Item Description CABLE AC DIST 2KW UAX Part Number 9529248046 RACK, 44RU, UAX‐2000 9810031010G XMTR, 2KW MAXIVA UAX 9810031012G CABLE 7/16M STRT TO 7/16M STRT 80CM 2500686080 ADAPTER, 7/16 PLUG/JACK RT ANG 277‐465‐000 CABINET INSIDE WALL 9435602246 COAX SPLITTER PKG 2KW 9529248068 ASSY, CABLE, PA TO PA, 1.
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7‐4 Section-7 Parts List October 17, 2013 Table 7‐1 XMTR, 2000W, 44RU, DUAL LPU, W/TCU 9950068908G Item Description Part Number CABLE, EXCITER A TO EXCITER B, 3 FT., UAX 9529248095 CABLE, EXCITER TO PA 2.5 FT., UAX 9529248096 AC CABLE, LPU, 3.
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Maxiva UAX October 17, 2013 7‐5 Table 7‐2 XMTR,1000W, 44RU, DUAL LPU, W/TCU 9950068907G Item Description Part Number ATTEN, SMA, 9DB, 2W, 50 OHM 5560183090 ATTEN, SMA, 10DB, 2W, 50 OHM 5560183100 PWA, UAX/VAX CUST I/O BOARD 9010224041 PANEL, I/O 9435602266 PANEL, I/O ANALOG BLANK 9435602268 KIT, 1KW AC DISTRIBUTION 9710041030G CABLE, UAX AC 500W 9529248052 CABLE, UAX AC 1KW 9529248053 AC CABLE, LPU, 4.
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7‐6 Section-7 Parts List October 17, 2013 Table 7‐3 TCU 981‐0293‐018 Designation Description Part Number FUSE, CART 5X20MM 4A SLOW fuses for AC inlets 3980496000 S/W, UCP, CUSTOMER I/O software 8611140012 S/W, UCP, MCM, UAX/VAX software 8611142022 S/W, UCP, UAX TCU INTFC software 8611142142 S/W,UCP,PCM2,UAX / VAX software 8611150012 FIRMWARE, UCP ,MCM, COMPACT FLASH MCM firmware on flash memory card 9172256104 MCM flash memory card only 7320537000 PWA, BASEPLANE board that TCU card
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Maxiva UAX October 17, 2013 7‐7 Table 7‐4 LPU 50W 995‐0068‐015G Designation Description Part Number APEX M2X SW/FW DVB COMPLETE APP 8611135202 KIT, ANALOG OPTION 9710035023G APEX M2X SW/FW ATV COMPLETE APP analog modulation software 8611135242 ASSY, ATV INPUT OPTION 9710035020G KIT, MPH OPTION 9710035024G APEX M2X SW/FW ATSC COMPLETE APP ATSC modulation software 8611135132 KIT, CTTB OPTION 9710035026G APEX M2X SW/FW CTTB COMPLETE APP CTTB modulation software 8611135302 KIT, ISDB‐TB O
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7‐8 Section-7 Parts List October 17, 2013 Table 7‐4 LPU 50W 995‐0068‐015G Designation Description Part Number PLUG, 4C 1ROW VERTICAL 6122156004 JACK‐JACK ADAPTER, PANEL MOUNT 6200208001 PWA, MCF5484 UC MODULE micro processor, daughter board 9010213011G PWA, UP/DOWN CONVERTER 9010215101G PWA, SIGNAL PROCESSOR 9010215181G HOLDER, BATTERY 20MM COIN CELL BATTERY 3V LITHIUM COIN CR2032 4041007000 real time clock battery 600054000 PWA, PA BACKPLANE 9010223041G PWA, PS BACKPLANE 9010223051G
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Maxiva UAX October 17, 2013 7‐9 Table 7‐4 LPU 50W 995‐0068‐015G Designation Description Part Number DOC PKG, MAXIVA UAX. USB DRIVE 9882693003 DOC PACKAGE, MAXIVA UAX 9882693004 SPARE PARTS KIT, UAX 10, 50, 100 9901483001 FAN, 48VDC 0.
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7‐10 Section-7 Parts List October 17, 2013 Table 7‐5 250W PAB 981‐0031‐041G Designation Description Part Number 2‐WAY COMBINER 9710041008G BASIC POWER BLOCK 9810031038G GROMMET STRIP, 0.063 266010007 TAPE, FOAM VINYL 0.125THK X 0.500W 0311810015A CABLE PUSH MOUNT 3582628000 GASKET, EMI, 0.13 TALL X 0.19 4080338000 GASKET,EMI,11.8MM X 10.7MM, V 4080397000 FAN GUARD, 80MM WIRE‐FORM 4300325000 FAN, 48VDC 0.
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Maxiva UAX October 17, 2013 7‐11 Table 7‐5 250W PAB 981‐0031‐041G Designation Description Part Number CABLE PKG UAX 500W 9529248032 CABLE RIBBON W5 9529248016 CABLE, UAX 500W JUMPERS 9529248033 CABLE COAX 24 9529248035 CABLE COAX 25 9529248036 CABLE COAX 26 9529248037 CABLE, RIBBON W1 9529248038 CABLE RIBBON W2 9529248039 CABLE RIBBON W4 9529248040 CABLE RIBBON W3 9529248042 CABLE COAX 27 9529248050 CABLE, COAX W7 9529248051 CABLES FAN FILTER DC 500W 9529248041 Table 7‐6 500W
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7‐12 Section-7 Parts List October 17, 2013 Table 7‐6 500W PAB 981‐0031‐037G Item Description Part Number FAN, 48VDC 0.84A 4300683000 AC INLET/FILTER, C20, 20AMP 6090125000 PLUG, 4C 1ROW VERTICAL 6122156004 GROMMET, LIGHT PIPE 7271519002 LIGHT PIPE, 0.8" L X 0.
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Maxiva UAX October 17, 2013 7‐13 Table 7‐6 500W PAB 981‐0031‐037G Item Description Part Number CABLE COAX 25 9529248036 CABLE COAX 26 9529248037 CABLE RIBBON W1 9529248038 CABLE RIBBON W2 9529248039 CABLE RIBBON W4 9529248040 CABLE RIBBON W3 9529248042 CABLE COAX 27 9529248050 CABLE, COAX W7 9529248051 CABLES FAN FILTER DC 500W 9529248041 Table 7‐7 PA MODULE 971‐0041‐002 Item Description ASSY, FULL PA PALLET Part Number 9710041002G HEAT SINK, UAX RF AMP 16061173 FINGERSTOCK, CLIP‐O
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7‐14 Section-7 Parts List October 17, 2013 Table 7‐7 PA MODULE 971‐0041‐002 Item Description Part Number PWA, PA INTERFACE 9010223031G PALLET COVER 9435602027 PALLET HANDLE 9435602028 PLATE, CONN FLOAT 9435602059 MICRON LID PALLET COVER 9435602080 STANDOFF, PA OUTPUT 9435602184 RF COAX PA MODULE CABLE 9435602196 SHIELD, PA MODULE 9435602455 Copyright ©2013, Harris Broadcast WARNING: Disconnect primary power prior to servicing.