Troubleshooting Manual

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Table Of Contents

3: TROUBLESHOOTING MANUAL

VX150 TO VX2

FM BROADCASTTRANSMITTER

Document ID: NHB-VX150-VX2-TRB

Version: 0.1

Issue Date: 2020-12-01

Status: Preliminary

Summary of content (105 pages)

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3: TROUBLESHOOTING MANUAL VX150 TO VX2 FM BROADCASTTRANSMITTER Document ID: Version: Issue Date: Status: NHB-VX150-VX2-TRB 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL Contact Information Nautel Limited 10089 Peggy’s Cove Road Hackett’s Cove, NS Canada B3Z 3J4 Toll Free: +1.877.6NAUTEL (662.8835) (Canada & USA only) or Phone: +1.902.823.3900 or Fax: +1.902.823.3183 Nautel Inc. 201 Target Industrial Circle Bangor, Maine USA 04401 Phone: +1.207.947.8200 Fax: +1.207.947.3693 Customer Service (24-hour support) +1.877.628.8353 (Canada & USA only) +1.902.823.5100 (International) Email: Web: support@nautel.com www.nautel.
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VX150 TO VX2 TROUBLESHOOTING MANUAL TABLE OF CONTENTS CONTENTS Contact Information 3.iii Responding to alarms 3.1.1 Corrective Maintenance 3.1.1 Electrostatic Protection 3.1.3 Identifying and Troubleshooting an Alarm 3.1.4 Replacement Procedures 3.1.17 Pre-Amplifier/IPA PWB Replacement 3.1.18 Power Amplifier PWB Replacement 3.1.20 Power Supply Module Replacement 3.1.23 Parts Information 3.2.1 Family Tree 3.2.1 How to Locate Information About a Specific Part 3.2.1 Column Content 3.
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VX150 TO VX2 TROUBLESHOOTING MANUAL Mechanical Drawings TABLE OF CONTENTS 3.4.1 Identifying Mechanical Drawings 3.4.1 Content of Mechanical Drawings 3.4.1 Locating a Part or Assembly on a Mechanical Drawing 3.4.1 List of terms PAGE 3.VI 3.5.1 VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RELEASE CONTROL RECORD ISSUE DATE REASON 0.1 2020-12-01 Preliminary release for VX150 to VX2. Supports hardware versions: VX150, VX300, VX600 (NARF81) VX1 (NARF79) VX1.5. VX2 (NARF80) Supports software version VX SW 1.0 and later. VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3.VIII VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS SECTION 3.1: RESPONDING TO ALARMS This section provides instructions you need when performing troubleshooting on the VX150 to VX2 transmitter. This section includes the following topics:  Corrective Maintenance  Electrostatic Protection - see page 3.1.3  Identifying and Troubleshooting an Alarm - see page 3.1.4  Replacement Procedures - see page 3.1.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS if a standby transmitter must be enabled (if one is available). It is recommended that the significance of remote indications, and the appropriate responses, be incorporated into a station's standard operating procedures. Refer to “Identifying and Troubleshooting an Alarm” on page 3.1.4 to determine the remedial action required for a given fault.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Electrostatic Protection The transmitter's assemblies contain semiconductor devices that are susceptible to damage from electrostatic discharge. The following precautions must be observed when handling an assembly which contains these devices. CAUTION! Electrostatic energy is produced when two insulating materials are rubbed together.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Identifying and Troubleshooting an Alarm You can identify an alarm locally by viewing the front panel user interface (UI) (see “Front Panel Alarm Checks”) or remotely by viewing the remote AUI’s Alarms page (see “Remote AUI Alarms Page Checks” on page 3.1.7). Front Panel Alarm Checks There two ways to check for alarms on the front panel:  Fault LED  Alarms Screen Fault LED See Figure 3.1.1.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarms Screen If an alarm exists and is currently being recognized by the transmitter system, it is displayed in the Alarms screen (Dashboard -> Alarms) of the front panel display (see Figure 3.1.2). Figure 3.1.2: Alarms Screen RESET LATCHED ALARMS Table 3.1.1 on page 3.1.9 contains a column for most alarms that can occur, sorted alpha-numerically.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Remote AUI Alarms Page Checks If an alarm exists and is being recognized by the transmitter, it is displayed on the Alarms page (see Figure 3.1.3). The warning symbol in the upper, right section of the remote AUI dashboard (any page) will be amber or red when an alarm is present. Figure 3.1.3: AUI Alarms Page 1. Click the warning symbol (or select Menu -> Alarms) to go to the Alarms page (see Figure 3.1.3). View the list of active faults.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS NOTE: Table 3.1.1 on page 3.1.9 contains a column for most alarms that can occur, sorted alphanumerically for each sub-system, including both the names displayed on the remote AUI and, if different, the front panel display. The Description and Troubleshooting Action column provides a brief description of the alarm, troubleshooting tips and a cross-reference to more detailed troubleshooting, as applicable. 4.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Table 3.1.1: Troubleshooting Alarms Alarm Name Description and Troubleshooting Action Analog Audio PWB +12V Fail This alarm occurs if the +12 V supply in the analog audio PWB is 10% lower or 10% higher than the desired value. Check the output voltage of the 12 V power supply module (U2). If necessary, replace the 12 V power supply module (see ????). There may also be a problem with the controller’s power supply PWB.
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VX150 TO VX2 TROUBLESHOOTING MANUAL Alarm Name RESPONDING TO ALARMS Description and Troubleshooting Action Entered Firmware Upgrade This alarm occurs when the exciter is in “firmware upgrade” mode. It should only be displayed during a transmitter software upgrade. Exciter +12V Fail This alarm occurs if the +12 V supply in the exciter PWB is 10% lower or 10% higher than the desired value. Check the output voltage of the 12 V power supply module (U2).
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name Description and Troubleshooting Action High SWR This alarm occurs if the transmitter's average reflected power exceeds the high SWR threshold (?? W). The transmitter takes no action on this alarm. Inspect the antenna and transmission line system for damage or de-tuning.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name Description and Troubleshooting Action IPA Output Low This alarm occurs if the pre-amp/IPA PWB's forward power is less than the IPA Output Low threshold (70%/14.4 W). This alarm causes the controller to limit the PA voltage to 30 V. Check for a +48V Supply Fail alarm and follow the associated troubleshooting procedure if present. IPA Fail and Pre-amp Fail alarms may also be present.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name Description and Troubleshooting Action No External 10 MHz This alarm occurs if frequency locking to an external 10 MHz source is enabled and no external 10 MHz is detected. The exciter will automatically switch over to the internal 10 MHz reference, and will continue to run. Check the 10 MHz input. If there are no problems with the 10 MHz signal and connection, suspect the Exciter/Control PWB (A1).
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name Description and Troubleshooting Action PA Power Supply AC Fail This alarm occurs if the power supply module (U3) is reporting an ac failure, indicating its ac input voltage is less than 175 V ac. The transmitter will inhibit its RF output until the alarm is cleared. Check the ac voltage applied to the power supply module.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name Description and Troubleshooting Action Pilot Unsync This alarm occurs if there is no synchronization between the 10 MHz and 1PPS signals. It may indicate that the GPS receiver is not detecting a signal. Check the GPS receiver and antenna.The transmitter takes no action on this alarm. PLL Unlocked This alarm indicates that the exciter’s master clock is not locked.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name Description and Troubleshooting Action SWR Shutback This alarm occurs if the transmitter's reflected power suddenly exceeds the SWR shutback threshold, which is the reflected power that is equivalent to a 2:1 VSWR at max power (?? W) due to a transient SWR condition (arc or lightning) within the output transmission line or antenna system.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Replacement Procedures Table 3.1.2 lists the procedures available in this manual for replacing PWBs and modules that have been designated as line replaceable units (LRUs). Table 3.1.2: Replacement Procedures Module Replacement Procedure Pre-Amplifier/IPA PWB See page 3.1.18 Power Amplifier PWB See page 3.1.20 Power Supply Modules See page 3.1.23 PAGE 3.1.16 VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Pre-Amplifier/IPA PWB Replacement See Figure 3.1.4 on page 3.1.19 of this section, and MD-1 and MD-8 in the Mechanical Drawings section of this manual. 1. Turn RF off and disconnect ac power from the transmitter. 2. Disconnect the RF Input cable from J1 on the IPA PWB. 3. Disconnect the RF Output cable from J2 on the IPA PWB. 4. Disconnect the ribbon cable from J3 that connects between the IPA PWB and the System Interface PWB. 5.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Figure 3.1.4: Pre-Amp/IPA PWB Replacement RF OUTPUT PAGE 3.1.18 RIBBON CABLE RF INPUT Partial top view, cover removed for clarity VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Power Amplifier PWB Replacement See Figure 3.1.5 on page 3.1.21 of this section, and MD-1 and MD-9 in the Mechanical Drawings section of this manual. 1. Turn RF off and disconnect the ac power from the transmitter. 2. Before replacing a suspect Power Amplifier PWB, verify the fault is with the suspect Power Amplifier PWB by performing the continuity and resistance checks detailed in “PA Resistance Checks” on page 3.1.22.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS NOTE: Using a torque screwdriver, alternate tightening the left and right screws on each FET, a quarter turn at a time, until 6 inch-pounds (0.67 Newton-meters) of torque has been applied. 12. Install the Power Amplifier PWB by reversing Step 3 to Step 8. 13. Return the transmitter to operation. Figure 3.1.5: Power Amplifier Removal LPF FILTER COVER PAGE 3.1.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS PA Resistance Checks 1. 2. 3. Using a digital multimeter, check the continuity across fuse F1 on the suspect PA PWB.  If the measurement is an open circuit, replace the PA PWB (see “Power Amplifier PWB Replacement” on page 3.1.20).  If the measurement is short circuit (near 0 ), proceed to Step 2. Using a digital multimeter, measure the resistance between each gate lead of the FET and the metal flange of the FET.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Power Supply Module Replacement WARNING! Lethal voltages exist inside the transmitter when the power is turned on. Follow replacement instructions carefully to ensure safety for maintenance personnel during power supply replacement. Figure 3.1.6: Location of Power Supply Module POWER SUPPLY MODULE NOTE: The power supply module is hot-swappable, meaning there is no need to turn RF off or disconnect ac power from the transmitter. 1.
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VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Figure 3.1.7: Removal of Power Supply Module VERSION 0.1 2020-12-01 PAGE 3.1.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3.1.24 RESPONDING TO ALARMS VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PARTS INFORMATION SECTION 3.2: PARTS INFORMATION This section contains reference designation lists that provide descriptive and provisioning information for all electrical and mechanical parts that have an assigned reference designation and form a part of the subject equipment. Topics in this section include:  Family Tree  How to Locate Information About a Specific Part  Column Content on page 3.2.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PARTS INFORMATION When the Reference Designation is Known:  Refer to the appropriate family tree depicted in Figure 3.2.1 on page 3.2.4, Figure 3.2.2 on page 3.2.5, or Figure 3.2.3 on page 3.2.6 with the full reference designation.  Follow the family tree branches to the block that represents the lowest level assembly assigned a Nautel configuration control number, then locate the reference designation information for that Nautel configuration control number.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PARTS INFORMATION Components that are directly descended from the highest level parts list are component level 01. The associated stock code and description for level 01 items appear in bold text in the reference designation list, followed by their sub-assembly components, as applicable. Level 01 items are sorted alphanumerically. Components that are directly descended from component level 01 items are component level 02.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PARTS INFORMATION Figure 3.2.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PARTS INFORMATION Figure 3.2.2: VX1 Family Tree (NARF79) VX1 1000 W FM BROADCAST TRANSMITTER NARF79 A1 A2 A3 A4 **EXCITER PWB ANALOG AUDIO PWB SYSTEM INTERFACE PWB PS INTERFACE PWB, 3.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PARTS INFORMATION Figure 3.2.3: VX1.5/VX2 Family Tree (NARF80) VX1.5/VX2 1500/2000 W FM BROADCAST TRANSMITTER NARF79 A1 A2 A3 A4 **EXCITER PWB ANALOG AUDIO PWB SYSTEM INTERFACE PWB PS INTERFACE PWB, 3.
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StockCode: Description: Page 1 of 8 NARF81 Final Assy, VX150/300/600, Component Lvl, StockCode Description Reference Designation 01 235-5910 SD card mod, Programmed (UB114) A01U63 01 235-8010 Ancillary kit for VX (150W-2kW) 01 235-8900 2RU Front Panel Detail Assembly 01 JDP21 Conn, Coax, N, Recept, Panel, 50ohm J01 01 LA82C Inductor, Air Core, 16 AWG magnet, 17 Turn, 0.
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StockCode: Description: Component Lvl, StockCode 01 Description Reference Designation 02 CT120 Capacitor, SMT,150pF,+/-1%,250V, NP0,0805 C02, C04, C07 02 CT121 Capacitor,SMT,180pF,+/-1%,250V, NP0,0805 C05, C09, C15 02 CT122 Capacitor,SMT, 1000pF, +/-5%, 50V,NP0 C11, C13 02 CT123 Capacitor, SMT, 0.01uF, +/-10%, 50V,BX C10, C14 02 FA76 Fuse, 125 VAC, VDC, 5A, Very fast acting F1 02 JT188 Conn, Jack, MCX, 50Ohm, Gold, Vert, SMT J1, J2 02 JU84 Conn, Header, Shrouded, 0.
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StockCode: Description: Page 3 of 8 NARF81 Final Assy, VX150/300/600, Component Lvl, StockCode Description Reference Designation 02 CCJ01 Cap,SMT,Ceramic,1000pF,10%, 50V,X7R,0402 C02, C04, C11, C12, C14, C15, C53, C81, C82, C86 02 CCJ02 Cap,SMT,Ceramic,0.01uF,10%, 50V,X7R,0402 C19, C22, C47, C65, C83, C84 02 CCJ03 Cap,SMT,Ceramic,0.
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StockCode: Description: Component Lvl, StockCode 01 Page 4 of 8 NARF81 Final Assy, VX150/300/600, Description Reference Designation 02 RAD38 Resistor, SMT, MF, 12.1K Ohms, 1% 1/4W 02 RAD93 Resistor, SMT, 0.01 ohms, 1%, 1/4W, 1206 R80 02 RAF24 Resistor SMT MF 68.
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StockCode: Description: Component Lvl, StockCode 01 Page 5 of 8 NARF81 Final Assy, VX150/300/600, Description Reference Designation 02 HAJ66 Terminal, SMT, Test Point, PWB TP2 02 JA121 Conn, PwrBlade, 3ACP+4P+24S, R/A,Solder Recp, 4mm J01 02 JR78 Terminal Block, 3 Pos, 300V, 13A, 28-14AWG, Spring TB1 02 JT202 Conn, Recept, AC, 250VAC, 20A, PWB Mount J03 02 JU91 Conn, Header, Shrouded, 0.
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StockCode: Description: Component Lvl, StockCode 02 Page 6 of 8 NARF81 Final Assy, VX150/300/600, Description Reference Designation CCJ07 Cap,SMT,Ceramic,100pF,1%, 50V,C0G,0402 C048, C049, C057, C080, C089, C110, C128 02 CCJ08 Cap,SMT,Ceramic,2.
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StockCode: Description: Component Lvl, StockCode 01 Page 7 of 8 NARF81 Final Assy, VX150/300/600, Description Reference Designation 02 RAF63 Resistor SMT MF 121K Ohm 1% 1/16W 0402 R071 02 RAF66 Resistor SMT MF 221K Ohm 1% 1/16W 0402 R087, R120 02 RAF74 Resistor SMT MF 1.00M Ohm 1% 1/16W 0402 R001, R030 02 RAF87 Resistor SMT MF 3740 Ohm 1% 1/16W 0402 R010, R017, R047, R063 02 RAF93 Resistor SMT MF 7.15K Ohm 1% 1/16W 0402 R077, R083, R132, R139 02 RAF94 Resistor SMT MF 3.
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StockCode: Description: Component Lvl, StockCode 01 Page 8 of 8 NARF81 Final Assy, VX150/300/600, Description Reference Designation 02 SD94 Switch, Push-Button, Green/Red, MOM, SPST-NO, PWB S01, S02 02 SD95 Switch, Push-Button, Tactile, SPST-NO, PWB S03 02 UC107 Rotary Encoder, 20PPR, Quadrature, w / MOM Push Bu U01 NAPP15 Directional Coupler Bottom PWB Assy A11 02 JT188 Conn, Jack, MCX, 50Ohm, Gold, Vert, SMT J01, J02, J03 02 RT73 Resistor, Termination, 50 Ohm, +/- 5%, 60W, Tuned
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StockCode: Description: Page 1 of 8 NARF79 Final Assy, VX1, Component Lvl, StockCode Description Reference Designation 01 235-5910 SD card mod, Programmed (UB114) A01U63 01 235-8010 Ancillary kit for VX (150W-2kW) 01 235-8900 2RU Front Panel Detail Assembly 01 JA44 Conn, Coax, Recept, 7/16 DIN, Panel,50ohm J01 01 LA82C Inductor, Air Core, 16 AWG magnet, 17 Turn, 0.
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StockCode: Description: Component Lvl, StockCode 01 Description Reference Designation 02 CT120 Capacitor, SMT,150pF,+/-1%,250V, NP0,0805 C02, C04, C07 02 CT121 Capacitor,SMT,180pF,+/-1%,250V, NP0,0805 C05, C09, C15 02 CT122 Capacitor,SMT, 1000pF, +/-5%, 50V,NP0 C11, C13 02 CT123 Capacitor, SMT, 0.01uF, +/-10%, 50V,BX C10, C14 02 FA76 Fuse, 125 VAC, VDC, 5A, Very fast acting F1 02 JT188 Conn, Jack, MCX, 50Ohm, Gold, Vert, SMT J1, J2 02 JU84 Conn, Header, Shrouded, 0.
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StockCode: Description: Page 3 of 8 NARF79 Final Assy, VX1, Component Lvl, StockCode Description Reference Designation 02 CCJ01 Cap,SMT,Ceramic,1000pF,10%, 50V,X7R,0402 C02, C04, C11, C12, C14, C15, C53, C81, C82, C86 02 CCJ02 Cap,SMT,Ceramic,0.01uF,10%, 50V,X7R,0402 C19, C22, C47, C65, C83, C84 02 CCJ03 Cap,SMT,Ceramic,0.
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StockCode: Description: Component Lvl, StockCode 01 Page 4 of 8 NARF79 Final Assy, VX1, Description Reference Designation 02 RAD38 Resistor, SMT, MF, 12.1K Ohms, 1% 1/4W 02 RAD93 Resistor, SMT, 0.01 ohms, 1%, 1/4W, 1206 R80 02 RAF24 Resistor SMT MF 68.
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StockCode: Description: Component Lvl, StockCode 01 Page 5 of 8 NARF79 Final Assy, VX1, Description Reference Designation 02 HAJ66 Terminal, SMT, Test Point, PWB TP2 02 JA137 Conn, PwrBlade, 3ACP+4P+24S, RA PCB, CP3500 Mate J01 02 JR78 Terminal Block, 3 Pos, 300V, 13A, 28-14AWG, Spring TB1 02 JT202 Conn, Recept, AC, 250VAC, 20A, PWB Mount J03 02 JU91 Conn, Header, Shrouded, 0.
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StockCode: Description: Page 6 of 8 NARF79 Final Assy, VX1, Component Lvl, StockCode Description Reference Designation 02 CCJ05 Cap,SMT,Ceramic,10uF,10%, 25V,X5R,0805 02 CCJ07 Cap,SMT,Ceramic,100pF,1%, 50V,C0G,0402 02 CCJ08 Cap,SMT,Ceramic,2.
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StockCode: Description: Component Lvl, StockCode 01 Page 7 of 8 NARF79 Final Assy, VX1, Description Reference Designation 02 RAF59 Resistor SMT MF 56.2K Ohm 1% 1/16W 0402 02 RAF63 Resistor SMT MF 121K Ohm 1% 1/16W 0402 R071 02 RAF66 Resistor SMT MF 221K Ohm 1% 1/16W 0402 R087, R120 02 RAF74 Resistor SMT MF 1.00M Ohm 1% 1/16W 0402 R001, R030 02 RAF87 Resistor SMT MF 3740 Ohm 1% 1/16W 0402 R010, R017, R047, R063 02 RAF93 Resistor SMT MF 7.
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StockCode: Description: Component Lvl, StockCode 02 01 Page 8 of 8 NARF79 Final Assy, VX1, Description Reference Designation RFFS50 Resistor,SMT,MF,10.
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StockCode: Description: Page 1 of 9 NARF80 Final Assy, VX1.5/2, Component Lvl, StockCode Description Reference Designation 01 235-5910 SD card mod, Programmed (UB114) A01U63 01 235-8010 Ancillary kit for VX (150W-2kW) 01 235-8900 2RU Front Panel Detail Assembly 01 JA44 Conn, Coax, Recept, 7/16 DIN, Panel,50ohm J01 01 LA82C Inductor, Air Core, 16 AWG magnet, 17 Turn, 0.
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StockCode: Description: Component Lvl, StockCode 01 Description Reference Designation 02 CT120 Capacitor, SMT,150pF,+/-1%,250V, NP0,0805 C02, C04, C07 02 CT121 Capacitor,SMT,180pF,+/-1%,250V, NP0,0805 C05, C09, C15 02 CT122 Capacitor,SMT, 1000pF, +/-5%, 50V,NP0 C11, C13 02 CT123 Capacitor, SMT, 0.01uF, +/-10%, 50V,BX C10, C14 02 FA76 Fuse, 125 VAC, VDC, 5A, Very fast acting F1 02 JT188 Conn, Jack, MCX, 50Ohm, Gold, Vert, SMT J1, J2 02 JU84 Conn, Header, Shrouded, 0.
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StockCode: Description: Component Lvl, StockCode 01 Page 3 of 9 NARF80 Final Assy, VX1.5/2, Description Reference Designation 02 CCFS04 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 C01, C02 02 CS81 Capacitor, SMT, Porcelain,24pF 500V, 2% C05 02 CS89 Capacitor, SMT, Porcelain,27pF 500V, 2% C07 02 CT53 Capacitor,SMT,Ceramic,0.001uF, 50V,10% C03, C04 02 JT188 Conn, Jack, MCX, 50Ohm, Gold, Vert, SMT J01, J02, J03 02 JU91 Conn, Header, Shrouded, 0.
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StockCode: Description: Page 4 of 9 NARF80 Final Assy, VX1.5/2, Component Lvl, StockCode Description Reference Designation 02 LCFS02 Inductor, SMT, Choke, 2000 ohm s, 80mA, 0805 02 LS18 Inductor,SMT.2.2uH,600ma,1210 L12 02 LS34 Inductor, SMT, 28nH, 2%, 4A 3.15mm H x 6.86mm L L09 02 LS45 Inductor, SMT, Shielded, 33uH, 3.3A RMS L03, L04 02 LS60 Inductor, SMT, 22uH, 4A RMS, Shielded, Pwr L13 02 LS61 Inductor, SMT, 9.
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StockCode: Description: Component Lvl, StockCode 01 01 Page 5 of 9 NARF80 Final Assy, VX1.5/2, Description Reference Designation 02 UX161 IC, SMT, Micro, 128K, 8K SRAM, 3.3V, TQFP-100 U02 02 UX191 IC, SMT, RMS RF Power detector , 3.3V, 40MHz-10GHz U10 02 UX83 IC,SMT,2.5V Reference,0.1%,SOT -23-6 U03 02 XFPS14 Crystal,SMT,Fund,32.768kHz, 10ppm,12.5pF,50kOhm,-4 Y01 NAPI188 Power Supply Interface PWB Assy - 3.5kW A04 02 CCFS09 Cap,SMT,Ceramic,0.
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StockCode: Description: Page 6 of 9 NARF80 Final Assy, VX1.5/2, Component Lvl, StockCode Description Reference Designation 02 CCFS54 Cap,SMT,Ceramic,1500pF,10%,50V ,X7R,0603 C058, C074, C117, C118 02 CCJ01 Cap,SMT,Ceramic,1000pF,10%, 50V,X7R,0402 C001, C005, C006, C022, C023, C028, C029, C045 02 CCJ02 Cap,SMT,Ceramic,0.01uF,10%, 50V,X7R,0402 C036, C044, C061 02 CCJ03 Cap,SMT,Ceramic,0.
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StockCode: Description: Component Lvl, StockCode 01 Page 7 of 9 NARF80 Final Assy, VX1.5/2, Description Reference Designation 02 RAF38 Resistor SMT MF 1000 Ohm 1% 1/16W 0402 02 RAF50 Resistor SMT MF 10.0K Ohm 1% 1/16W 0402 02 RAF52 Resistor SMT MF 15.
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StockCode: Description: Component Lvl, StockCode 01 Page 8 of 9 NARF80 Final Assy, VX1.5/2, Description Reference Designation 02 JA140 Conn, USB, Vertical Mount, Type A, PWB J04 02 JQ55 Conn, Header, Ribbon Cbl, 20 Pin J03 02 JQ97 Conn, Header, SATA, Vert, PWB J01 02 JU96 Conn, Header, Shrouded, 0.050" 20pos, Dual Row, Go J02 02 LS18 Inductor,SMT.2.
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StockCode: Description: Page 9 of 9 NARF80 Final Assy, VX1.5/2, Component Lvl, StockCode Description Reference Designation 01 UA313 Cable, Coax, SRC 316, MCX(M) RA to MCX(M) Straight W13, W14 01 UA316 Cable, SATA, 0.5m, Straight F to Straight F, Shiel W15 01 UA318 Cable Assembly, Flat IDC, 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS SECTION 3.3: READING ELECTRICAL SCHEMATICS This section contains electrical schematics and logic diagrams for the transmitter. Block diagrams, simplified electrical schematics, and logic diagrams may be included. Refer to Table 3.3.1 on page 3.3.5 for an itemized listing. Component Values Unless otherwise specified on the logic or schematic diagram, the following defaults apply: 5 Capacitor values are shown in microfarads (uF) (e.g.
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VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS Unique Symbols Nautel uses unique symbols on electrical schematics to describe logic (two-state) signals. These signals differ from single-state signals or analog signals that may have multiple values. Type of Inputs and Outputs On electrical schematics, names used to describe logic (two-state) input and output signals are prefixed with a # symbol.
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VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS Structure of Schematics The electrical schematics are structured in a hierarchical format that is based on function and signal flow. Wherever practical, the signal flow is from left to right. Normally, inputs originate on the left-hand side and outputs extend to the right-hand side. Exceptions are shown by an arrow indicating the direction of signal flow.
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VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS Locating a Part or Assembly on a Schematic The full reference designation assigned to a part or assembly is the key to physically locating that part or assembly. NOTE: Full reference designations contain the assembly hierarchical coding. When the end item is divided into units (cabinets), the first coding is a unit number (1, 2, 3, etc.). When the end item is divided into assemblies, the first coding is an assembly number (A1, A2, A3, etc.
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VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS Table 3.3.1: List of Electrical Schematics Figure # Title SD-1 VX150/VX300/VX600 and VX1 Transmitter - Control/Monitor Stage SD-2 VX150/VX300/VX600 and VX1 Transmitter - Ac and RF Power Stages SD-3 VX1.5/VX2 Transmitter - Control/Monitor Stage SD-4 VX1.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3.3.6 READING ELECTRICAL SCHEMATICS VERSION 0.
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W15 REMOTE I/O GND 1 1 +3.
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W7 RF DRIVE FROM SHEET 1 J1 W2 PART OF 1 GND 1 A3 2 IPA BIAS 2 SYSTEM INTERFACE PWB 3 GND 3 4 GND 4 5 GND 5 6 GND 6 IPA VOLTS SAMPLE 7 J7 RT1 GND 8 9 GND 9 10 IPA V 10 11 GND 11 12 IPA V 12 1 13 GND 13 HEATSINK (-) 2 14 IPA V 14 INLET AIR (+) 3 INLET AIR (-) 4 GND 15 A3 SYSTEM INTERFACE PWB W8 E1 W13 W8 J2 A11 A7 POWER AMP PWB PA LOW PASS FILTER PWB W13 RF + BIAS J5 J6 J1 Q1 RF OUT E1 2 TACH 4 FAN VOLTS (-) W12 A A FWD PWR SAMPLE T
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W15 REMOTE I/O GND 1 1 +3.
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W7 FROM SHEET 1 RF DRIVE J1 W2 PART OF A3 SYSTEM INTERFACE PWB 1 GND 1 2 IPA BIAS 2 3 GND 3 4 GND 4 5 GND 5 6 GND 6 IPA VOLTS SAMPLE 7 8 J7 HEATSINK (+) RT1 1 HEATSINK (-) 2 INLET AIR (+) 3 INLET AIR (-) 4 TB1 RT2 W2 A6 IPA PWB 7 8 GND 9 GND 9 10 IPA V 10 11 GND 11 12 IPA V 12 13 GND 13 14 IPA V 14 15 GND 15 16 IPA V 16 PART OF J3 A3 SYSTEM INTERFACE PWB W8 W9 W8 J2 E1 SPLITTER PWB J1 W1 1 PA 1 BIAS 1 2 PA 2 BIAS 2 3 GND 3 4 G
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J4C (-) SHD R J4A SHIELD C1 0.001 50V RIGHT R13 39.2K C6 0.001 3 R15 1000 VOUTL- 1 U1A C5 0.001 V- R11 681 1/4W U2 V+ 2 R17 3740 V_CLAMP_ADO+ U5A R10 3740 R39 10.0K 3 6 26 U6AC PCM3060PW 1 U1B VOUTL+ R56 10.0K R3 100 21 3 C131 0.1 50V 6 R61 1000 J3C (-) SHD L LEFT R59 39.2K J3A SHIELD C22 0.001 50V C45 0.001 3 R60 1000 C23 0.
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R127 1000 MPX1+ J1A MPX1- MPX1 C105 18pF R116 25.5 2W R126 10.0K R128 1000 AC1 V_CLAMP_MPXC93 18pF 3 U21 V- 2 7 U15B R83 7150 1/16W 6 3 R78 C52 220pF 3570 1/16W 50V 3 1 U14A C100 0.1 GND1 GND2 1 2 C75 39pF 50V C76 R92 470pF 2100 50V 1/16W 5 7 U14B R103 22.1 5 U18A U17R ADS8350IRTET 14 C85 0.1 C97 2.2 25V C90 10 13 7 +3.3V C67 0.1 R149 1000 C125 18pF MPX2+ MPX2 J1B MPX2- R141 25.5 2W R148 10.
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+12V +12V-A TP12 TB1 +12V IN TP15 R65 10.0K +12V R79 10.0K 1 L11 C60 4.7 25V 2 REFLD PWR SAMPLE J7:10 +12V R80 0.01 R76 1/4W 121 +12V-A C63 0.1 50V ALL RESISTORS ARE RATED 1/16W UNLESS OTHERWISE SHOWN J7:12 R75 121 J7:14 J7:16 C68 0.1 50V J9 +12V-A R49 22.1K 12 J12:3 J12:1 1 PROGRAM/ DEBUG INTERFACE J12:4 4 J12:6 6 CR2 USB50405CE3 5V +3.3V C61 0.1 50V AVCC 1 94 L8 C37 0.1 50V 89 J12:2 2 PB5 C44 0.1 50V R45 22.1K +3.3V U9 GAT-20 IN +3.
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FROM SHEET 1 RF DRIVE IN PA BIAS R33 1000 R34 12.1K 1/4W C22 0.01 50V J6 J5 R40 150 1/4W C49 6.8pF 50V CR1 BAT54HT1 RF DRIVE OUT R39 150 1/4W L9 0.028μH 6 C53 0.001 50V 7 8 10 R50 10.0K R52 3320 C1+ C1T2IN C2+ 16 +3.3V VCC C59 0.1 50V 1 PC SERIAL DEBUG 3 2 4 C54 0.1 50V J11:1 J11:3 J11:2 J11:4 R54 121 C2V- 2 +3.3V U4:17 ADM3202ARN UDTS05 V+ GND PB1 C46 0.1 50V 1 T2OUT R2IN R47 10.0K 3 PART OF U2:32 ATxmega128A1U-AU C55 0.1 50V 4 5 C56 0.
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TP3 R2 10.0K +12V J2:10 +12V 10 GND TP1 12V 8 J2:8 5 J2:5 2 J2:2 6 J2:6 9 J2:9 1 C1 0.1 25V IN U1 UA78M33CDCY C2 0.47 25V 3.3V R1 10.0K OUT 3 C7 0.1 25V GND 2 +3.3V ALL RESISTORS ARE RATED 1/10W UNLESS OTHERWISE NOTED TB1 LINE 1 LINE/N 3 GND 2 J3:1 1 J3:3 2 J3:2 AC TO 12V SUPPLY 3 +3.3V J1:25 R3 475 J1:26 J1:27 J2:1 (+) 1 R5 121 RS-485 TO SYSTEM INTERFACE R7 121 R4 121 J1:8 R6 121 R35 0.0 L1 C3 0.
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TP3 +12V 10 GND TP1 12V R2 10.0K +12V J2:10 8 J2:8 5 J2:5 2 J2:2 6 J2:6 9 J2:9 1 C1 0.1 25V C2 0.47 25V IN U1 UA78M33CDCY 3.3V R1 10.0K OUT 3 +3.3V C7 0.1 25V GND 2 ALL RESISTORS ARE RATED 1/10W UNLESS OTHERWISE NOTED TB1 LINE 1 LINE/N 3 GND 2 J3:1 1 J3:3 2 J3:2 AC TO 12V SUPPLY 3 +3.3V J1:25 R3 475 (+) 1 J1:27 J2:1 R5 121 RS-485 TO SYSTEM INTERFACE R7 121 (-) 3 J1:26 R4 121 J1:24 L1 C3 0.1 25V R6 121 R36 0.
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2 J1:2 1 5 J1:5 2 6 J1:6 3 3 J1:3 4 1 J1:1 4 J1:4 7 J1:7 DISPLAY MOSI 1 J2:1 J3:5 5 DISPLAY SCK 3 J2:3 J3:3 3 DISPLAY MISO 6 J2:6 J3:4 4 DISPLAY CS 8 J2:8 J3:6 6 9 J2:9 J3:8 8 2 J2:2 4 J2:4 EXCITER DISPLAY RESET 7 J2:7 5 J2:5 C5 100 25V +3.3V L1 2.2μH +3.3V R5 150 1/10W R FAULT DS1 Q1 2N7002 J2:10 J4 DD+ V- +3.3V C4 0.
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- * 5 ,3$ 9 - - & 9 - / - 1 ) $ 5 & & S) / + - 3 & S) 5) ,1387 - & S) / & + S) / & S) + ,3$ 92/76 6$03/( / + & S) / & + S) / & S) + & S) & S) - 5) 287387 4 $)7 06 *15 & S) 5 ,3$ %,$6 - % - ) - $ 5 . & / + - & - ' - ( - + - , - .
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PA VOLTS E1 F1 40A R5 47.5K 1/4W RF DRIVE J1 L4 0.15μH L5 C2 22pF 0.15μH 250V C6 56 63V C1 0.1 C11 56 63V R1 10 1/4W C10 56 63V C12 0.1 L3 0.022μH R4 10.0 1W C17 1000pF C18 1000pF C3 12pF 250V L2 0.0175μH C19 470pF C20 470pF Q1:1 MRFX1K80H E2 C9 680pF 300V R6 10.0 1W 235-1050-SCH01.SchDoc V: A C16 1000pF RF OUT C15 12pF L1 C7 100pF C22 12pF C14 470pF 300V C21 470pF 300V Q1:2 MRFX1K80H C23 680pF 300V Figure SD-13: NAPA40 Power Amplifier PWB VERSION 0.
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*DENOTES FORMED BY PADS ON THE PWB C6 1.5pF 1500V C7 5.6pF 1500V C9 5.6pF 1500V C8 3.3pF 1500V C10 1.8pF 1500V E1 A L1 C1* L3 L2 C2* C3* C4* 235-6020-SCH01.SchDoc V:A Figure SD-14: NAPF16 Low Pass Filter PWB VERSION 0.
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5) 021,725 5) ,1 ):' 3:5 6$03/( - 5 : $ % - - 5) 287 5()/' 3:5 6$03/( 6&+ 9$ Figure SD-15: NAPP15 Directional Coupler Bottom PWB VERSION 0.
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1 J4:1 3 J4:3 J1 2 J4:2 4 J4:4 5 J4:5 6 J4:6 7 J4:7 8 J4:8 9 J4:9 10 J4:10 R2 12.1K 1/4W R4 1000 1/10W C7 27pF 500V L1 0.056μH R3 1000 1/10W C5 24pF 500V R5 100 30W J2 C4 0.001 50V C3 0.001 50V C2 0.01 50V R1 12.1K 1/4W J3 C1 0.01 50V 235-6270-SCH01.SchDoc V:A Figure SD-16: NAPH15 2-Way Splitter PWB (VX1.5/VX2) VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL MECHANICAL DRAWINGS SECTION 3.4: MECHANICAL DRAWINGS This section contains mechanical drawings for assemblies of the transmitter. Dimensional drawings may be included. Refer to Table 3.4.1 on page 3.4.2 for an itemized list. Assembly detail drawings for assemblies and modules that have separate manuals are not included. Refer to the appropriate maintenance manual for the assembly detail of these assemblies.
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VX150 TO VX2 TROUBLESHOOTING MANUAL MECHANICAL DRAWINGS Table 3.4.1: List of Mechanical Drawings Figure # Title MD-1 VX150/VX300/VX600/VX1 Transmitter MD-2 VX1.5/VX2 Transmitter MD-3 NAPI189 Analog Audio PWB MD-4 NAPI187 System Interface PWB MD-5 NAPI188/01 Power Supply Interface PWB (VX150/VX300/VX600) MD-6 NAPI188 Power Supply Interface PWB (VX1/VX1.
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EXCITER PWB ANALOG AUDIO PWB (A2) DIRECTIONAL COUPLER (A11) PS INTERFACE PWB (A4, located under panel) LOW PASS FILTER (A9) PRE-AMP/IPA PWB (A6, located on the side of chassis) POWER AMPLIFIER (A7) ORBAN AUDIO PROCESSOR (optional) (A14) SYSTEM INTERFACE PWB (A3) 12 V POWER SUPPLY MODULE (U2) POWER SUPPLY MODULE (U3) FRONT PANEL USER INTERFACE PWB (A5, located behind front panel) FRONT PANEL) (U1) TOP COVER REMOVED FOR CLARITY Figure MD-1: VX150/VX300/VX600/VX1 Transmitters VERSION 0.
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NOT AVAILABLE AT TIME OF PRINT Figure MD-2: VX1.5/VX2 Transmitter VERSION 0.
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Figure MD-3: NAPI189 Analog Audio PWB VERSION 0.
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Figure MD-4: NAPI187 System Interface PWB VERSION 0.
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Figure MD-5: NAPI188/01 Power Supply Interface PWB (VX150/VX300/VX600) VERSION 0.
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Figure MD-6: NAPI188 Power Supply Interface PWB (VX1/VX1.5/VX2) VERSION 0.
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Figure MD-7: NAPI193 Front Panel User Interface PWB VERSION 0.
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Figure MD-8: NAPA41 Pre-Amp/IPA PWB VERSION 0.
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Figure MD-9: NAPA40 Power Amplifier PWB VERSION 0.
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Figure MD-10: NAPF16 Low Pass Filter PWB VERSION 0.
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Figure MD-11: NAPP15 Directional Coupler PWB VERSION 0.
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Figure MD-12: NAPH15 2-Way Splitter PWB (VX1.5/VX2) VERSION 0.
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Figure MD-13: 2-Way Combiner PWB (Nautel Part # PU03A) (VX1.5/VX2) VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL LIST OF TERMS SECTION 3.5: LIST OF TERMS This section defines some of the terms that are used in Nautel documentation. AES/EBU. Audio Engineering Society/European Broadcasting Union (AES/EBU) is the name of a digital audio transfer standard. The AES/EBU digital interface is usually implemented using 3-pin XLR connectors (the same type connector used in professional micros). One cable carries both left-channel and right-channel audio data to the receiving device. AUI.
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VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3.5.2 LIST OF TERMS VERSION 0.
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VX150 TO VX2 TROUBLESHOOTING MANUAL Document: NHB-VX150-VX2-TRB Issue: 2020-12-01 Nautel Limited 10089 Peggy’s Cove Road Hackett’s Cove, NS Canada B3Z 3J4 Toll Free: +1.877.6NAUTEL (662.8835) (Canada & USA only) or Phone: +1.902.823.3900 or Fax: +1.902.823.3183 Nautel Inc. 201 Target Industrial Circle Bangor, Maine USA 04401 Phone: +1.207.947.8200 Fax: +1.207.947.3693 Customer Service (24-hour support) +1.877.628.8353 (Canada & USA only) +1.902.823.5100 (International) Email: Web: support@nautel.