VSHD Exciter FOR USE WITH VS SERIES TRANSMITTERS Technical Instruction Manual Issue 2.0 .......... 04 May 2017 Nautel Limited 10089 Peggy's Cove Road, Hackett's Cove, NS, Canada B3Z 3J4 T.877 6 nautel (628835) or +1.902.823.2233 F.+1.902.823.3183 info@nautel.com U.S. customers please contact: Nautel Inc. 201 Target Industrial Circle, Bangor ME 04401 T.877 6 nautel (628835) or +1.207.947.8200 F.+1.207.947.3693 info@nautel.com e-mail: support@nautel.com www.nautel.com Copyright 2017 NAUTEL.
Warranty by Nautel Limited/Nautel Inc. (herein after referred to as Nautel) Nautel guarantees all mechanical and electrical parts of Nautel Transmitters for a period of forty eight months, and all other Nautel manufactured equipment (including Importers and Exporters) for a period of twelve months from date of shipment, provided the equipment has been installed, operated and maintained in accordance with Nautel’s recommendations, and the equipment has not been misused, neglected or modified.
8. Nautel does not warrant that software: a. b. c. d. 9. is free of errors, bugs or defects; will be compatible with third party software; results, output or data provided through or generated by the software are accurate, complete, or reliable; and errors found will be corrected. Nautel shall have the right and shall be provided full access to investigate whether failures have been caused by factors beyond its control. 10.
Factory Support TECHNICAL ASSISTANCE Nautel's field service department provides telephone technical assistance on a 24 hour, seven days a week basis. Requests by other media (facsimile or e-mail) will be responded to the next working day if received after Nautel's normal working hours. Contact the appropriate field service centre from the following: U.S.A. customers use: Nautel Incorporated 201 Target Industrial Circle Bangor, Maine 04401 T. +207-947-8200 (24 hours) or 877 6 nautel (628835) F.
Information to the User This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Contents 1 Page OVERVIEW 1.1 1.2 1.3 1.4 1.5 1.6 1.7 2 INTRODUCTION FACTORY SUPPORT PURPOSE AND SCOPE OF MANUAL PURPOSE OF EQUIPMENT MECHANICAL DESCRIPTION COOLING REQUIREMENTS TRANSMITTER HARDWARE MODIFICATIONS 1-1 1-2 1-2 1-2 1-2 1-2 1-3 INSTALLATION 2.1 2.2 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 2.4 2.4.1 2.4.
List of Tables 2-1 3-1a 3-1b 3-1b 3-2 5-1 6-1 7-1 Packing Supplies, VSHD Exciter Nautel part # 211-8981-01 RF Output Maximum TPO (MER Priority, MP1) RF Output Maximum TPO (Efficiency Priority, MP1) HD Maximum Output TPO (MP1) RF Output Minimum Power Ratings (MP1) Manufacturers’ Code Index Wiring Lists Provided List of Drawings 2-2 3-11 3-11 3-12 3-12 5-1 6-1 7-2 List of Figures/Drawings 1-1 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-
Release Control Record Issue Date Reason 2.0 4 May 2017 New hardware release of product (NAE103B) VSHD Exciter Technical Instruction Manual May.4.
VSHD Exciter TECHNICAL INSTRUCTION MANUAL Section 1 OVERVIEW 1.1 INTRODUCTION The VSHD exciter (see Figure 1-1) provides a high quality VHF, frequency modulated, RF signal, designed to integrate with a VS series transmitter for IBOC transmission in either alldigital or hybrid modes. The VSHD exciter is frequency agile, requires no tuning for operation between 87.5 MHz and 108 MHz, and is capable of operation up to 50 W (in analog mode).
1.2 FACTORY SUPPORT Nautel provides after sales factory support. Technical assistance is available on a 24 hour, seven days a week basis. A factory service facility for repair of modules/assemblies is also available. Refer to the Factory Support portion of the Warranty pages at the front of this manual for additional information. 1.3 PURPOSE AND SCOPE OF MANUAL This manual provides the information required to install, operate and maintain the exciter. 1.
1.7 TRANSMITTER HARDWARE MODIFICATIONS To operate in IBOC mode, the VS transmitter had to be modified from its original configuration to work with the VSHD exciter. RF drive for the VS transmitter system is provided by the VSHD Exciter for IBOC operation. The following modifications were implemented for VS transmitters at the factory prior to shipping or via modifications defined in the associated Information Sheet or Field Modification if an HD upgrade was performed in the field.
VSHD Exciter TECHNICAL INSTRUCTION MANUAL Section 2 INSTALLATION 2.1 ENVIRONMENT REQUIREMENTS Consider the following requirements when preparing to install the VSHD exciter. 2.1.1 Work Area Nautel recommends that you provide a suitable work area with an adequate table surface adjacent to the VSHD exciter or host cabinet to permit bench adjustment/repair. 2.
2.2.3 Mounting in Equipment Rack When mounting the equipment in a standard 19” equipment rack, provide adequate support at the bottom of the VSHD exciter. The VSHD exciter cannot support itself through front panel mounting only. New rail mounting hardware is provided. Airflow and cooling must also be considered. For ease of interconnection with the associated VS transmitter (interconnecting cables are provided by Nautel and are fixed length), mount the VSHD directly above or below the VS transmitter.
Figure 2-1: Parts required for Installation VSHD Exciter Technical Instruction Manual Section 2 Installation Page 2-3 Issue 2.
2.2.3.2 Rack Slider Assembly Assemble the Rack Slider as follows: • Separate the slider assembly parts ‘A’ and “B” by pressing the quick release button and pulling apart. See Figure 2-2. Figure 2-2: Slider Assembly Release • Assemble parts ‘C’, ‘D’ and ‘E’, of the rack mount assembly. Tighten hardware connecting parts ‘D’ and ‘E’. Leave the hardware connecting parts ‘C’ and ‘D’ finger tight to allow for rack depth adjustment.
Figure 2-4: Slider Assembly to Rack Mount NOTE Use spacer ‘L’ between slider and rack mount assembly as necessary to secure hardware passing through part ‘D’ only. • For Nautel racks, install eight nut retainers ‘H’ on the rack rails to align with four holes in the front of each rack mount assembly. Install four ‘A’ screws in the outside nut retainers and tighten. Non-Nautel (threaded) racks do not require the nut retainers. See Figure 2-5.
2.2.3.3 Mounting the Slides • Install the slide bracket on the screws against the back of the nut retainers (if used) and install securing hardware ‘M’, ‘N’, and ‘O’. Secure the rack mount assembly to the rack rear using four ‘A’ screws and ‘M’, ‘N’, and ‘O’ securing hardware. Tighten all hardware. See Figure 2-6. NOTE Front screws may have been installed in the previous step. Figure 2-6: Mounting the Slides Page 2-6 Issue 2.
NOTE Before mounting the VSHD exciter in its host rack, refer to paragraph 2.3.3.1.3 to determine if it is necessary to configure the MPX input’s jumper setting. 2.3.3.4 Mounting the VSHD Exciter • Attach part ‘B’ of the rack slider assembly to the exciter, ensuring correct orientation. See . Once mounted in the rack, secure the exciter using ‘A’ screws and ‘B’ washers. See Figure 2-7.
2.3 TECHNICAL PRE-COMMISSIONING 2.3.1 Electrical Power Connection The VSHD exciter operates from a 100 – 240 V ac, 50/60 Hz, single-phase power source. The AC INPUT (U1) connector is located at the rear of the exciter (see Figure 2-8). Pass the line cord through a ferrite toroid a minimum of two complete turns around the toroid. Ferrite toroids (Nautel Part # LP23) and an ac line cord (Nautel Part # JN50) are included in the Installation Kit (Nautel Part # 211-8982-01) with the VSHD exciter.
Dimensions = mm (inches) VSHD Exciter – Rear View Issue 2.
2.3.3.1 ANALOG INPUTS: The digital exciter accepts the following analog inputs: 2.3.3.1.1 Left and Right Inputs An analog left/right or monaural input (left only) (30 Hz to 15 kHz, -12 dBu to +12 dBu) can be applied to ANALOG AUDIO IN D-sub connector A1J5 [left (+ on pin 7, - on pin 8, shield on pin 15), right (+ on pin 13, - on pin 14, shield on pin 6)]. The associated VS transmitter’s front panel or remote AUI allows for configuration of the audio input mode (left, right or stereo).
2.3.3.2 DIGITAL INPUTS The digital exciter accepts the following digital inputs: 2.3.3.2.1 AES/EBU Input The VSHD exciter accepts AES/EBU digital audio via the AES/EBU IN 1 3-pin XLR connector (A1J4) (110 Ω balanced; supports sample rates between 20 kHz and 192 kHz). The associated VS transmitter’s front panel or remote AUI allows for configuration of the audio input mode (left, right or stereo) and level (in dBFS). A second AES/EBU option exists for use with a secondary digital audio source (e.g.
2.3.4 VSHD Exciter and VS Transmitter Interconnections Several cables must be connected between the VSHD exciter and the associated VS transmitter to ensure proper operation. These cables (W1 through W4) are all included in the Installation Kit (Nautel Part # 211-8982-01) provided with the VSHD exciter. See Figure 2-8 to locate VSHD exciter connectors.
2.4 COMMISSIONING PROCEDURES The commissioning procedures presented in this section assume that the VSHD exciter was received from the factory with an associated VS transmitter. If you received your VSHD exciter for a pre-existing VS transmitter, refer to the appropriate Information Sheet (VS1 and VS2.5) or Field Modification (VS300) for commissioning, operation and optimization instructions. The following procedures are in a step-by-step format.
(f) Using the spectrum analyzer on the remote AUI (to learn how to connect to the remote AUI refer to the VS transmitter’s Operations and Maintenance manual), ensure that the transmitter’s output spectrum complies with FCC and NRSC regulations and DTS (formerly iBiquity Digital Radio Corp.) “HD Radio FM Transmission System Specification” mask for Hybrid or All-Digital transmission. Verify that the Average PA Dissipation meter does not exceed 180 W at any time. Contact Nautel if necessary.
VSHD Exciter TECHNICAL INSTRUCTION MANUAL Section 3 OPERATION 3.1 USER INTERFACE The user can interface with the VSHD exciter through the associated VS transmitter’s standard interface, either locally using the VS transmitter’s front panel display or remotely, via a LAN connection, using the advanced user interface (AUI). Refer to the associated VS transmitter’s Operations and Maintenance Manual for a detailed description of the VS transmitter’s general operating instructions.
3.1.1.1 AM-AM and AM-PM CORRECTION When the transmitter is operating with digital carriers, the exciter linearizes the transmitter’s RF drive signal by performing adaptive pre-correction. There are two correction parameters AM-AM Correction (see Figure 3-2) and AM-PM Correction (see Figure 3-3), which can be viewed as instrument panels. Figure 3-2: AM-AM Correction AM-AM correction (see Figure 3-2): This panel displays the amplitude correction being applied to the magnitude signal.
Figure 3-3: AM-PM Correction AM-PM correction (see Figure 3-3): This panel displays the phase correction being applied to the RF drive signal in order to compensate for the transmitter’s (exciter +PA stage) phase non-linearity versus the output power. In Figure 3-3 the transmitter output power is low, so the curve in the plot shows positive phase correction. Inversely, a negative phase correction will be displayed in the plot given high output power levels.
3.1.1.2 POWER DISTRIBUTION GRAPH See Figure 3-4. The exciter measures the relative power levels of the signal and determines the probability of exceeding a given power level, relative to the average power. The data is plotted in the Power Distribution Graph as a CCDF (complementary cumulative distribution function). The x-axis displays the relative power level in dB, with the reference (0 dB) representing the average power. The y-axis displays the probability of exceeding that power level.
3.1.1.3 SIGNAL CONSTELLATION See Figure 3-5. The exciter constantly measures the transmitter signal and performs basic demodulation of the digital carriers. The Signal Constellation panel displays the phase and amplitude of the symbols being modulated within an OFDM sub-carrier as dots on a cartesian graph. There are separate screens for each sub-carrier. Typically, the dots will be grouped together around the ideal data points.
3.1.1.4 OSCILLOSCOPE See Figure 3-6. This panel displays an oscilloscope to allow monitoring of audio input parameters. The oscilloscope displays a real-time waveform for the selected audio input (e.g., L/R audio input). The audio input(s) being monitored is displayed in the upper, left-hand corner of the panel (e.g., R in green, L in blue for L/R audio input.
3.1.2 Managing Presets The preset page’s Mode options increase when using the VSHD exciter (for the AUI, see Figure 3-7 compared to Figure 2.39 of the VS transmitter’s Operations and Maintenance Manual; for the front panel UI, see Figure 3-8 compared to Figure 2.48 of the VS transmitter’s Operations and Maintenance Manual). When the VSHD exciter is used, the Mode drop-down selection list is no longer disabled and instead includes the HD (all-digital), FM+HD (hybrid) and DRM+ modes of operation.
- IBOC Injection (Upper): for FM+HD and HD modes, enter value, in dB, between -20 and -10 dB for the IBOC injection level of the lower sideband of digital carriers. This value determines the relationship between the digital carriers power and the analog carrier power. Example: -20 dB indicates that the total RMS power of the digital carriers will be 1/100 of the total RMS power of the analog carrier.
Figure 3-8: Presets Page – Other Settings tab Other Settings tab changes/additions (see Figure 3-8): - Pilot Level: enter value between 6 and 12 % (typically 9 %). This level is added to the composite baseband signal. - Pilot 1 PPS Sync: select Enabled or Disabled. - Pilot Sync Phase: if Pilot 1 PPS Sync is enabled, enter value between 0 and 360 degrees (typically 0 degrees). - Audio Delay: select Enabled, then enter value in the allowable range of 0 to 12000 ms. Default is 0.
- Timeout Seconds: sets the delay, in seconds, between modulation loss detection and the resulting action. Enter a value in the allowable range of 0 and 59.9 seconds. - Threshold: sets the threshold for modulation loss detection. Enter a value in the allowable range of 0 and 100%. - Hard Limiter: select Enabled, then enter the hard limit threshold percentage (allowable range is 0-160%, defaulted to 140%).
3.1.2.2 USING THE FRONT PANEL Figure 3-9: Preset Editing Menu Preset editing menu changes/additions (see Figure 3-9): Output Power: The output power setting, as displayed in the Output Power screen, varies with transmitter type and the IBOC Mode setting. Refer to Tables 3-1 and 3-2 for maximum and minimum power ratings. NOTE The power levels in the following tables are for reference only. The power capability will vary vs frequency and MP mode (e.g. MP3).
Table 3-1c: HD Output Maximum TPO (MP1) TRANSMITTER TYPE HD (-20 dB) HD (-14 dB) VS300 113 W 92 W VS1 480 W 390 W VS2.5 960 W 780 W HD (-10 dB) 83 W 350 W 700 W NOTE Power levels stated for minimum power are for all injection levels. Table 3-2: RF Output Minimum Power Ratings (MP1) TRANSMITTER TYPE Hybrid (FM+HD) HD (all-digital) VS300 8W 8W VS1 32 W 32 W VS2.5 64 W 64 W IBOC Mode: See Figure 3-10.
Use the up and down buttons to scroll through the IBOC settings menu options, then press the ‘accept’ (checkmark) or right arrow button to enter the selected editing screen. Figure 3-12 shows the editing screens for the IBOC Settings menu for the UI and Figure 3-13 show the menu for the AUI. Press the cancel (X) button to discard changes and return to the previous menu.
3.1.3 Changing System Settings The AUI’s System Settings page’s selection options increase when using the VSHD exciter (see Figure 3-13 compared to Figure 2-86 of the VS transmitter’s Operations and Maintenance Manual). The following additional pages are available: System Settings►IBOC Settings – see 3.1.3.1 System Settings►Spectrum/Efficiency Optimizer – see 3.1.3.2 User Settings►Exgine Settings – see 3.1.3.
3.1.3.2 SPECTRUM/EFFICIENCY OPTIMIZER The Spectrum/Efficiency Optimizer page on the AUI (see Figure 3-14) allows users to optimize the transmitter’s spectrum and/or efficiency by adjusting the following parameters: • Optimization Enabled - Select Yes or No. Selecting Yes allows the optimizer to adjust the PA voltage setting to maximize efficiency based on the transmitter output spectrum. Depending on other settings in this section, it may require other actions to maintain the transmitter’s compliance.
Optimizing HD Parameters from the Front Panel UI From the front panel UI, you can enable and configure various HD signal parameters (e.g., injection level, TPO, etc.) in an attempt to optimize the digital signal’s overall efficiency. To view the HD Optimizer screen, select User Settings ► HD Optimizer from the Main Menu.
Select ON to allow the optimizer to adjust the PA voltage setting to maximize efficiency based on the transmitter output spectrum. Depending on other settings in this section, it may require other actions to maintain the transmitter’s compliance. Select OFF to disable. When disabled, other HD Optimizer settings will have no effect. Select ON to enable a reduction in IBOC injection (digital power) if the spectrum mask requires it. Select OFF to disable this setting.
3.1.3.3 EXGINE SETTINGS See Figure 3-17. Allows for configuring IP information for the Exgine Settings. You can select the digital carrier status (on or off), protocol (UDP or TCP), and set network information such as Exgine IP, Netmask, Gateway and E2X (Exgine) Port. The Exporter IP setting determines which Exporter Plus to interface with if more than one Exporter Plus exists on a common network. The MAC Address is for display purposes only; it cannot be edited. Press Set to save changes.
3.1.4 Configuring RF Drive Source The front panel UI’s RF Drive Source screen selection options increase when using the VSHD exciter (see Figure 3-18 compared to Figure 2-101 of the VS transmitter’s Operations and Maintenance Manual). Figure 3-18: RF Drive Source Screen Use the up and down buttons to toggle between Internal VS Exciter, VS HD Exciter and External FM Exciter. Press the ‘accept’ (checkmark) button to save the change. Press cancel (X) to discard changes and return to the previous menu.
3.1.6 Exgine Web Interface This section describes how to monitor and troubleshoot the VSHD exciter’s internal Exgine PWB using a web-based browser. If HD data is being applied to the VSHD exciter via a local area network (LAN) connection, determine the IP address of the Exgine using the associated transmitter’s user interface (see 3.1.3.3) and enter the address into the web browser’s address bar on a PC or laptop that is connected to the same LAN. If HD data is being applied directly to the VSHD exciter [e.
Figure 3-20: Statistics tab Figure 3-21: Status tab VSHD Exciter Technical Instruction Manual Section 3 Operation Page 3-21 Issue 2.
Figure 3-22: Alarms tab Figure 3-23: Configuration tab Page 3-22 Issue 2.
Figure 3-24: Maintenance tab 3.2 SOFTWARE UPGRADES The VSHD exciter receives software upgrades as part of the associated VS transmitter’s software upgrade process. The VSHD exciter and VS transmitter upgrades are part of the same .tgz file. If the VSHD exciter is selected, the VS transmitter will automatically detect that the VSHD is present. If necessary, refer to section 4 of the VS transmitter’s Operations and Maintenance Manual for the software upgrade procedure.
VSHD Exciter TECHNICAL INSTRUCTIONS Section 4 MAINTENANCE 4.1 GENERAL This section contains maintenance information for the VSHD Exciter. 4.2 BATTERY REPLACEMENT The VSHD`s exciter PWB (A1) contains a battery backup circuit that provides a memory of date and time information during ac power failures. The battery should be replaced at least once a year or whenever the Exciter - Low Battery alarm appears (on the front panel UI or via remote AUI). Chemical leakage from an old battery can cause damage.
4.3 EXCITER PWB (NAPE86*) REPLACEMENT CAUTION The exciter PWB is static sensitive and must be handled in a static protected manner. To replace the VSHD exciter PWB (A1), perform the following steps: (a) Disconnect all cabling and ac power to the VSHD exciter. (b) Remove the exciter’s top cover and retain hardware. (c) At the rear panel, remove any securing hardware for connectors that protrude through the rear panel. Retain all hardware for re-installation.
Figure 4-2: Loosening the BNC connector’s locking ring (e) Remove the three small Philips screws, which mount the front of the exciter PWB to the chassis, located along the edge of the PWB. Retain hardware for re-installation. (f) Slightly lift the front edge of the exciter PWB and withdraw towards the front of the exciter. (g) Locate or obtain a replacement exciter PWB (NAPE86*). Remove the `push` lever from the XLR connector as described in Step (c).
(l) Remove the “Interlock” jumper, if applicable, from J2A pins 19 and 20. (m) Re-install the exciter’s top cover. (n) The new exciter PWB is shipped with all standard or default power presets and audio settings. Re-install the exciter in its host cabinet (if provided), reconnect all interconnect cables and restore operation by enabling ac. Check and restore presets and audio settings to your specific configuration. (o) Locate the Scale Factors data recorded during the commissioning (see Section 2.4.
VSHD Exciter TECHNICAL INSTRUCTIONS Section 5 PARTS LISTS 5.1 PART INDEX TABLES Part index table(s) for all electrical and mechanical parts that have been assigned a reference designation are provided. Refer to the preamble in the Parts List section, of the host transmitter's instruction manual, for explanation of list contents. Individual part number indexes are provided for all assemblies that have been assigned a Nautel configuration control number (e.g., NAE103A).
NAE103B Page 5-2 Issue 2.
VSHD Exciter TECHNICAL INSTRUCTIONS Section 6 WIRING INFORMATION 6.1 INTRODUCTION This section contains wiring information for hard-wired assemblies of the subject unit. Refer to Table 5-1 for an itemized listing of assemblies that have wiring lists. 6.2 WIRING LISTS NOT PROVIDED Separate wiring lists are not provided for some assemblies. These assemblies include: Assemblies that have separate maintenance manuals are not provided.
Table 6-2: Wiring List – VSHD Exciter Source Destination Wire # P1 U3-L 1 P2 U3-N 2 E1 U3-GND 3 U3-L U2-L 4 U3-N U2-N 5 U3-GND U2-GND 6 E1 U1-GND 7 U2-(+5V) P4-6 8 U2-COM P4-5 9 U2-COM P4-7 10 U2-(+5V) P6-4 11 U2-(+5V) P3-11 12 U2-(+5V) P3-23 13 U2-COM P3-12 14 U2-COM P3-24 15 U2-COM U3-(-V) 16 U2-(+V) P3-25 17 U2-(-V) P3-13 18 U3-(+V) A2E3-A 19 U3-(+V) P3-1 20 U3-(+V) P5-5 21 U3-(+V) P5-9 22 U3-(-V) A2E8 23 P3-2 P5-7 24 P3-3 P4-1 25 P3-4 P5-4 26 P3-5 P5-6 27 P3-7 P6-2 28 P3-14 P5-8 29 P3-15 P5-2 30 P3-17 P
Table 6-3: Connector Mating Information – VSHD Exciter Connector Mate P1 P2 P3 P4 P5 P6 A2P1 B1P1 W1P1 W1P2 W2P1 W2P2 W3P1 W3P2 W4P1 W4P2 W5J1 W5P1 W6P1 W6P2 U1-L U1-N A1J9 A3J5 A2P1 A4J1 P5 A1J12 A1J15 A2J1 A1J11 A3J8 A1J14 A3J2 A3J1 U4J1 EXT 10 MHz A3J3 A3J4 A1J13 Table 6-4: Connector Mating Information – VSHD Exciter/VS Transmitter Interconnect Connector Mate W1P1 W1P2 W2P1 W2P2 W3P1 W3P2 W4P1 XMTR - XMTR LINK EXCTR - XMTR LINK XMTR - REMOTE I/O A EXCTR - ANALOG AUDIO IN XMTR - RF SAMPLE OUT EXCTR
VSHD Exciter TECHNICAL INSTRUCTIONS Section 7 ELECTRICAL SCHEMATICS AND ASSEMBLY DETAIL DRAWINGS 7.1 INTRODUCTION This section contains electrical schematics and assembly detail diagrams for the subject equipment. Refer to Table 7-1 for an itemized listing. 7.2 COMPONENT VALUES Unless otherwise specified on the logic/ schematic diagram: • • • • • Resistor values are shown in ohms. (K = 1000 and M = 1 000 000). Resistor power ratings are not shown when less than 0.5 W.
7.6 UNIQUE SYMBOLOGY Nautel utilizes unique symbology on electrical schematics to describe two-state (logic) inputs/outputs that differ from those inputs/ outputs having only one distinct state or multiple states (analog). 7.7 IDENTIFICATION OF SCHEMATIC DIAGRAMS A number that is both the figure number and the page number identifies each illustration in this section. The numbers are assigned sequentially and are prefixed by the “Figure'.
VS TRANSMITTER VSHD EXCITER W1P1 A1J1 W2P1 A1J2A XMTR LINK/ STREAMING W1P2 AES/EBU FROM AUDIO OVER IP W2P2 A1J2 A1J5 RF SAMPLE ** W3P1 W3P2 A1J1 W4P2 A2J2 RF DRIVE *** B2110001 V1 W4P1 ** DENOTES CONNECTOR DESIGNATION IS TRANSMITTER DEPENDENT: *** DENOTES CONNECTOR DESIGNATION IS TRANSMITTER DEPENDENT: J1 FOR VS300 J3 FOR VS1 OR VS2.5 J4 FOR VS300 J1 FOR VS1 OR VS2.5 Electrical Schematic – Interconnections Between VS Transmitter and VSHD Exciter Issue 2.
GND 3 5 NEUTRAL 2 6 +15V 6 LINE 1 8 +5V 5 7 GND 3 N/C U1-L FROM AC POWER SOURCE (180-264VAC) (47-63 Hz) U1 LINE GND LINE/NEUTRAL P2 CB1P2 P7 FROM EXTERNAL PROGRAM SOURCES GND ANALOG AES/EBU IN 1 (+) ANALOG AES/EBU IN 1 (-) HD UPGRADE RX (+) HD UPGRADE RX (-) HD DATA (+) HD DATA (-) EXT 10 MHz S2110157 V3 PART OF J11 +VE SENSE 1 3 5 17 20 13 6 W2P1 7 8 9 10 11 12 15 2 # ADC1_CS N/A # 165_LOAD SCK MOSI PS CTRL V # PS INHIBIT A + PART OF +48V W2P2 # FAN ENABLE + 1 3 5 17 20 13 6
A6 LOW PASS FILTER PWB UNFILTERED RF A C L1 C1 27pF 88nH C4 L3 * 88nH C3 L2 * 88nH C5 L4 * 88nH C7 33pF FILTERED RF D F J3 ** L5 550nH B C5 0.1 C3 10 ** C6 0.01 C4 10 FORWARD POWER 5 ENBL 1 V+ RF_IN COM VRMS R11 150 R12 121 R7 R13 121 221 C9 1.0 C7 10 C10 0.01 C12 4.
Assembly Detail – Modified VS300 for use with VSHD Exciter Issue 2.
U1-L FROM AC POWER SOURCE (180-264VAC) (47-63 Hz) LINE 1 AC GND LINE 2/NEUTRAL P3 CB1P1 CB1 CB1-3 P5 P1 U1-GND U1-N LINE 2/NEUTRAL P2 P4 CB1P2 E1 E1 P8 E2 # PS INHIBIT + PS CTRL V LINE 1 LINE 2/NEUTRAL AC GND +VE TX SELECT U3 N +48V POWER -V SUPPLY E2 +V GND 3 +48V 1 PART OF +VE SENSE A2 POWER SUPPLY MODULE -VE E5 FROM RF POWER STAGE W1P1 12 14 16 18 20 32 31 7 8 40 35 36 37 34 10 9 MPX SCA 3 IN GND 1 PPS IN GND BALANCED ANALOG AUDIO (LEFT +)/SCA 1(+) IN BALANCED ANALOG AUDIO (S
PA 1 V E1 C2 E1 PA 2 V FROM EXCITER/ CONTROL STAGE E2 C3 E2 E1 PA 3 V PA 1 BIAS C4 E2 C5 E1 PA 4 V C1 PA 2 BIAS E2 S IPA OUTPUT * M L F E * R * * FROM EXCITER/ CONTROL STAGE W1P2 24 26 28 30 22 21 23 25 27 13 15 17 19 31 29 11 FAN V (+) FAN V (+) FAN V (+) 1 3 5 FAN V (-) FAN V (-) FAN V (-) 2 4 6 R1 50 30W P1 P3 20 26 18 R3 50 30W R2 50 30W R4 50 30W PART OF A3 INTERFACE PWB PA 4 V PA 4 RF DRIVE PA 4 BIAS N/C A4 C2 0.01 1 C8 0.01 1 1 3 16 C5 0.
LINE 1 1 P1 CB1E1 CB1 CB1E3 P3 2 LINE 2/NEUTRAL 1 AC GND E1 1 TB2 TB3 DS1 CB1E4 P4 P2 CB1E2 X2 2 4 LINE 1 X1 A FROM AC POWER SOURCE (180-264VAC) (47-63 Hz) STATION REFERENCE GROUND TB1 J1 3 LINE 2/NEUTRAL 2 E3 E2 2 AC GND 27 23 47 46 45 29 39 40 41 42 43 44 U4 +48V POWER SUPPLY W1P1 FAN TACH 3 FAN TACH 4 FAN TACH 5 FAN TACH 6 FAN TACH 7 IPA FWD PWR SAMPLE GND HEATSINK TEMP 1 (+) HEATSINK TEMP 1 (-) REFLD PWR SAMPLE GND FWD PWR SAMPLE GND N/A HEATSINK TEMP 2 (-) HEATSINK TEMP
1 9 5 6 4 3 8 2 7 MPX SCA 3 IN GND 1 PPS IN GND BALANCED ANALOG AUDIO (LEFT +)/SCA 1(+) IN BALANCED ANALOG AUDIO (SHIELD) IN BALANCED ANALOG AUDIO (LEFT -)/SCA 1 (-) IN BALANCED ANALOG AUDIO (RIGHT +)/SCA 2 (+) IN BALANCED ANALOG AUDIO (RIGHT -)/SCA 2 (-) IN J5B J13 FROM EXTERNAL PROGRAM SOURCES ANALOG AES/EBU IN SHIELD ANALOG AES/EBU IN (+) ANALOG AES/EBU IN (-) 1 2 3 MPX BAL/UNBAL IN MPX SCA 1 IN MPX SCA 2/RDS IN REMOTE INPUT 3 (# RESET -) EXT +15V IN GND REMOTE INPUT 1 (# RF ON -) REMOTE INPUT 2 (#
4 D E1 C8 E2 PART OF A16 2 B 4 PA 1 V (+) PA 2 V (+) FROM EXCITER/ CONTROL STAGE PA 3 V (+) 3 PA 4 V (+) PART OF A14 A 1 C7 E2 C 3 PART OF A15 A 1 C5 E2 C3 E2 C C1 E2 3 C PART OF A16 1 A E1 E1 C9 PA 1 BIAS E1 PA 2 BIAS FROM EXCITER/ CONTROL STAGE W6P1 ISO J8 W5P2 * * 0 * * R1 100 30W J H U1 R2 50 30W RF DRIVE -90 IN * J7 PA 3 BIAS M L R3 100 30W PART OF PA 4 BIAS A4 PRE-AMP V PRE-AMP V PRE-AMP V PRE-AMP BIAS IPA BIAS PA BIAS 1 PA BIAS 1 PA BIAS 1 PA BIAS 1
FROM EXTERNAL 10MHz SOURCE W5P1 W5J1 U1 AC ENTRANCE MODULE FROM AC POWER SOURCE (90-264VAC) L E N L E N F1 8A +5V COM(GND) U2 P1 P2 LOW VOLTAGE POWER SUPPLY LINE L LINE/NEUTRAL N +5V P3 +15V +V +15V 11 23 12 24 25 -15V -V -15V 13 +5V +5V +5V COM (GND) COM G J9 J9 E1 J11 +27V L +V +27V N -V GND 1 N/C 6 N/C 9 N/C 10 N/C 21 FROM TRANSMITTER EXCITER RF SAMPLE J14 EXCITER CONTROL PWB FROM EXTERNAL 1 PPS SOURCE 10MHz W6P2 J15 FROM TRANSMITTER LINK FROM EXTERNAL PROGR
+27 V POWER SUPPLY EXGINE PWB AC POWER ENTRANCE U1 MPX BAL/UNBAL jumper E1 A3 U3 LED PWB A4 EXCITER PWB A1 PA MODULE U2 LVPS B1 A2 FAN Assembly Detail – VSHD Exciter – Top View (cover removed) Issue 2.
