Nautel VX150 Manual Download

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3: TROUBLESHOOTING MANUAL

VX150

VX2

FM B

ROADCAST

RANSMITTER

Document ID:

NHB-VX150-VX2-TRB

Version:

0.1

Issue Date:

2020-12-01

Status:

Preliminary

Summary of Contents for VX150

Page 1: ...3 TROUBLESHOOTING MANUAL VX150 TO VX2 FM BROADCASTTRANSMITTER Document ID NHB VX150 VX2 TRB Version 0 1 Issue Date 2020 12 01 Status Preliminary...

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Page 3: ...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 support nautel com Web www nautel com The comparisons and other informat...

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Page 5: ...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 2...

Page 6: ...AL TABLE OF CONTENTS PAGE 3 VI VERSION 0 1 2020 12 01 Mechanical Drawings 3 4 1 Identifying Mechanical Drawings 3 4 1 Content of Mechanical Drawings 3 4 1 Locating a Part or Assembly on a Mechanical D...

Page 7: ...0 1 2020 12 01 PAGE VII 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 Su...

Page 8: ...VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3 VIII VERSION 0 1 2020 12 01...

Page 9: ...ration at a reduced RF output level The nature of the fault and station policy will dictate whether an immediate maintenance response is necessary Fault analysis and rectification may be conducted fro...

Page 10: ...e action must be taken Refer to Identifying and Troubleshooting an Alarm on page 3 1 4 to determine the remedial action required for a given fault Off Air Troubleshooting Off air troubleshooting must...

Page 11: ...s Tools Test Equipment Testing and maintenance equipment including soldering and unsoldering tools should be suitable i e grounded tip for contact with static sensitive semiconductor devices Stress Cu...

Page 12: ...ront panel Fault LED Alarms Screen Fault LED See Figure 3 1 1 The FAULT LED on the right hand side of the display indicates that a fault is present The FAULT LED will be either off or red When illumin...

Page 13: ...alarm name in Table 3 1 1 on page 3 1 9 to determine the cause of the alarm and perform any recommended procedures in the Description and Troubleshooting Action column This may also lead to replacing...

Page 14: ...listed by their name Alarm column and then by severity Alarm Detail column single orange indicates low severity RF output not affected single red indicates medium severity RF output is reduced two red...

Page 15: ...ct PWB or module causes the alarm to disappear from the Alarms page the alarm has been successfully cleared If the fault condition does not clear contact Nautel NOTE Before undertaking any troubleshoo...

Page 16: ...with the processor on the internal serial bus Check all connections to the Orban Inside audio processor card Audio Processor Output Fail This alarm occurs if the transmitter is configured to include a...

Page 17: ...fail the transmitter takes no action no effect on the RF output If the alarm occurs for fans 1 or 2 check the connection between the indicated fan and the PS Distribution PWB A2 If these connections...

Page 18: ...mmediately after ac power has been applied restored or after a software upgrade If this alarm continues to occur more than 30 minutes after ac power has been applied to the transmitter cycle turn off...

Page 19: ...IPA PWB replacement on page 1 42 If the voltage is acceptable or replacing the pre amp IPA PWB does not clear the alarm condition suspect the Combiner Interface PWB A12 see Combiner Interface PWB Rep...

Page 20: ...850 W for VS2 5 or 900 W for VS3 The forward power of the transmitter will be limited to a level such that neither of these thresholds are exceeded Check for associated alarms Typically the assertion...

Page 21: ...ot clear the fault suspect the PS Distribution PWB A2 PA Power Supply Over Temperature This alarm occurs if the power supply module U3 is reporting a high temperature alarm indicating its operating te...

Page 22: ...line or antenna system The transmitter shuts back and recovers to a series of cutback levels depending on the severity of the alarm with each level being a 1 8th reduction in power from the previous c...

Page 23: ...d DSP Image This alarm indicates that the exciter is operating with unsigned code but is otherwise operational This alarm may only be displayed if the transmitter is operating with a beta version of f...

Page 24: ...le 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 Pro...

Page 25: ...m J2 on the IPA PWB 4 Disconnect the ribbon cable from J3 that connects between the IPA PWB and the System Interface PWB 5 Remove and retain the four M3 screws securing the IPA PWB and remove 6 Obtain...

Page 26: ...0 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS PAGE 3 1 18 VERSION 0 1 2020 12 01 Figure 3 1 4 Pre Amp IPA PWB Replacement RF INPUT RF OUTPUT RIBBON CABLE Partial top view cover removed for clar...

Page 27: ...he FET on Power Amplifier PWB 7 Remove and retain the four M3 screws securing the Low Pass Filter cover Remove the cover to access the jumper described in Step 5 Loosen the M3 screw and move the jumpe...

Page 28: ...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...

Page 29: ...8 k replace the PA PWB see Power Amplifier PWB Replacement on page 3 1 20 If the measurement is between 8 k and 17 5 k check the other PA PWBs for a failure If none of the other PA PWBs have failed r...

Page 30: ...acement power supply module Nautel Part UG132 for VX150 VX300 VX600 or UG136 for VX1 VX1 5 VX2 4 Using Figure 3 1 7 on page 3 1 24 as a guide reinstall the new power supply module 5 Verify that the AC...

Page 31: ...VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS VERSION 0 1 2020 12 01 PAGE 3 1 23 Figure 3 1 7 Removal of Power Supply Module...

Page 32: ...VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS PAGE 3 1 24 VERSION 0 1 2020 12 01...

Page 33: ...he family tree is based on the descending order of the reference designation hierarchy and identifies all assemblies that have an assigned Nautel configuration control number How to Locate Information...

Page 34: ...050 To obtain the full reference designation for a specific part the Nautel configuration control number must be located in the appropriate family tree Figure 3 2 1 on page 3 2 4 Figure 3 2 2 on page...

Page 35: ...Nautel s configuration control number for assemblies that are under configuration control management or Nautel s inventory management number for purchased parts When a Nautel configuration control nu...

Page 36: ...API189 NAPI187 NAPI188 01 A5 A6 A7 A8 FRONT PANEL USER INTERFACE PWB PRE AMP IPA PWB POWER AMPLIFIER PWB NOT USED NAPI193 NAPA41 NAPA40 A9 A10 A11 A12 PA LOW PASS FILTER PWB NOT USED DIRECTIONAL COUPL...

Page 37: ...NAPI188 A5 A6 A7 A8 FRONT PANEL USER INTERFACE PWB PRE AMP IPA PWB POWER AMPLIFIER PWB NOT USED NAPI193 NAPA41 NAPA40 A9 A10 A11 A12 PA LOW PASS FILTER PWB NOT USED DIRECTIONAL COUPLER PWB NOT USED NA...

Page 38: ...NEL USER INTERFACE PWB PRE AMP IPA PWB POWER AMPLIFIER PWB POWER AMPLIFIER PWB NAPI193 NAPA41 NAPA40 NAPA40 A9 A10 A11 A12 PA LOW PASS FILTER PWB PA LOW PASS FILTER PWB DIRECTIONAL COUPLER PWB 2 WAY S...

Page 39: ...pacitor SMT 22pF 1 250V NP0 0805 C02 CT66 02 Capacitor SMT Ceramic 0 1uF 10 100V C01 C12 FA79 02 Fuse SMT 40A 72VDC Very Fast F1 HAC122 02 1 Pin Screw Terminal Power Tap M3 Surface Mount E1 E2 JT188 0...

Page 40: ...805 L5 LS73 02 Inductor SMT 5nH 2 4A Air L4 LS74 02 Inductor SMT 33nH 2 4 8A Air L2 L3 QAP74 02 Transistor SMT MOSFET LDMOS Single 40V TO 270 2 Q1 RAD33 02 Resistor SMT MF 4750 Ohms 1 1 4W R2 RAD95 02...

Page 41: ...Conn Header Square Post Gold Dual 40 pin J12 JQ16 02 Conn Header SIP 12 Pin Breakaway 10 Ctr J11 JR77 02 Terminal Block 2 Pos 300V 13A 28 14AWG Spring TB02 JR89 02 Terminal Block 4 Pos 300V 26 20AWG...

Page 42: ...16W 0402 R18 R24 RAF62 02 Resistor SMT MF 100K Ohm 1 1 16W 0402 R19 R25 R66 R77 RAF83 02 Resistor SMT MF 499 Ohm 1 1 16W 0402 R97 RFFS04 02 Resistor SMT MF 1 50ohms 1 1 10W 0603 R99 RT50 02 Resistor S...

Page 43: ...istor SMT MF 10 0Kohms 1 1 10W 0603 R01 R02 R12 R13 R23 R24 R27 RFFS59 02 Resistor SMT MF 56 2Kohms 1 1 10W 0603 R18 ULAS02 02 IC SMT Opamp Quad Rail To Rail SOIC 14 U05 UP156 02 IC SMT Linear Voltage...

Page 44: ...MT Schottky 40V 1A SMA CR04 QDSS01 02 Diode SMT Schottky 30V 0 2A SOD 323 CR03 QDZS11 02 Diode SMT Zener 5 6V 1 5W SMA 403D CR01 CR02 CR05 CR06 RAD23 02 Resistor SMT MF 681 Ohms 1 1 4W R011 R052 RAF01...

Page 45: ...04 U09 U13 U15 U18 U19 U23 UT172 02 IC SMT Precision Diff Amp 8 MSOP U05 U10 U16 U25 UT178 02 IC SMT Rail to Rail Dual Op amp Wide BW SOIC8 U14 U24 UX66 02 IC SMT Linear Regulator 150mA Adj MSOP 8 U07...

Page 46: ...3 UA298 01 Cable Assembly Flat IDC 0 050 Tiger Eye 20 con W04 UA300 01 Cable Assembly Flat IDC 0 050 Tiger Eye 10 con W05 UA301 01 Cable Assembly Flat IDC 0 100 pitch 20 cond 2 W06 UA307 01 Cable Coax...

Page 47: ...citor SMT 22pF 1 250V NP0 0805 C02 CT66 02 Capacitor SMT Ceramic 0 1uF 10 100V C01 C12 FA79 02 Fuse SMT 40A 72VDC Very Fast F1 HAC122 02 1 Pin Screw Terminal Power Tap M3 Surface Mount E1 E2 JT188 02...

Page 48: ...5 LS73 02 Inductor SMT 5nH 2 4A Air L4 LS74 02 Inductor SMT 33nH 2 4 8A Air L2 L3 QAP74 02 Transistor SMT MOSFET LDMOS Single 40V TO 270 2 Q1 RAD33 02 Resistor SMT MF 4750 Ohms 1 1 4W R2 RAD95 02 Resi...

Page 49: ...Header Square Post Gold Dual 40 pin J12 JQ16 02 Conn Header SIP 12 Pin Breakaway 10 Ctr J11 JR77 02 Terminal Block 2 Pos 300V 13A 28 14AWG Spring TB02 JR89 02 Terminal Block 4 Pos 300V 26 20AWG Sprin...

Page 50: ...24 RAF62 02 Resistor SMT MF 100K Ohm 1 1 16W 0402 R19 R25 R66 R77 RAF83 02 Resistor SMT MF 499 Ohm 1 1 16W 0402 R97 RFFS04 02 Resistor SMT MF 1 50ohms 1 1 10W 0603 R99 RT50 02 Resistor SMT MF 0 0 ohms...

Page 51: ...1 RFFS46 02 Resistor SMT MF 4750ohms 1 1 10W 0603 R13 RFFS50 02 Resistor SMT MF 10 0Kohms 1 1 10W 0603 R01 R02 R12 R20 R23 R24 R27 RFFS59 02 Resistor SMT MF 56 2Kohms 1 1 10W 0603 R15 R18 ULAS02 02 IC...

Page 52: ...0MHz 1 3A 0402 L02 LS56 02 Inductor SMT 3 3uH 5 6A RMS L01 L03 QDDS02 02 Diode SMT Schottky 40V 1A SMA CR04 QDSS01 02 Diode SMT Schottky 30V 0 2A SOD 323 CR03 QDZS11 02 Diode SMT Zener 5 6V 1 5W SMA 4...

Page 53: ...ing Reg 2 4A 16 LFC U20 UT171 02 IC SMT Op AMP Dual Low Noise Bipol Supply 8 U01 U04 U09 U13 U15 U18 U19 U23 UT172 02 IC SMT Precision Diff Amp 8 MSOP U05 U10 U16 U25 UT178 02 IC SMT Rail to Rail Dual...

Page 54: ...e Assembly Flat IDC 0 050 Tiger Eye 20 con W03 UA298 01 Cable Assembly Flat IDC 0 050 Tiger Eye 20 con W04 UA300 01 Cable Assembly Flat IDC 0 050 Tiger Eye 10 con W05 UA301 01 Cable Assembly Flat IDC...

Page 55: ...2 Capacitor SMT 22pF 1 250V NP0 0805 C02 CT66 02 Capacitor SMT Ceramic 0 1uF 10 100V C01 C12 FA79 02 Fuse SMT 40A 72VDC Very Fast F1 HAC122 02 1 Pin Screw Terminal Power Tap M3 Surface Mount E1 E2 JT1...

Page 56: ...L5 LS73 02 Inductor SMT 5nH 2 4A Air L4 LS74 02 Inductor SMT 33nH 2 4 8A Air L2 L3 QAP74 02 Transistor SMT MOSFET LDMOS Single 40V TO 270 2 Q1 RAD33 02 Resistor SMT MF 4750 Ohms 1 1 4W R2 RAD95 02 Re...

Page 57: ...0 C31 C32 C37 C38 C40 C41 C42 C43 C44 C45 C46 C48 C50 C51 C54 C55 C56 C57 C58 C59 C61 C63 C64 C66 C68 C69 C71 C72 C74 C77 C78 C79 C80 CCJ04 02 Cap SMT Ceramic 1uF 10 25V X5R 0402 C08 C09 C23 C39 C73 C...

Page 58: ...R63 R71 R72 R74 R75 R76 R78 R84 R85 R86 R87 R91 R92 R93 R94 RAF34 02 Resistor SMT MF 475 Ohm 1 1 16W 0402 R83 R88 R90 R95 RAF38 02 Resistor SMT MF 1000 Ohm 1 1 16W 0402 R33 RAF42 02 Resistor SMT MF 22...

Page 59: ...ept AC 250VAC 20A PWB Mount J03 JU91 02 Conn Header Shrouded 0 050 10pos Dual Row Go J02 LS23 02 Choke SMT Common Mode 7000 ohm 700mA L01 RFCS04 02 Resistor SMT 0 002 ohms 1 5W R22 R28 RFFS01 02 Resis...

Page 60: ...10 25V X5R 0402 C011 C035 C043 C060 C097 CCJ10 02 Cap SMT Ceramic 18pF 1 50V C0G 0402 C093 C105 C114 C125 CCJ13 02 Cap SMT Ceramic 3300pF 10 50V X7R 0402 C077 CCJ19 02 Cap SMT Ceramic 470pF 1 50V C0G...

Page 61: ...hm 1 1 16W 0402 R001 R030 RAF87 02 Resistor SMT MF 3740 Ohm 1 1 16W 0402 R010 R017 R047 R063 RAF93 02 Resistor SMT MF 7 15K Ohm 1 1 16W 0402 R077 R083 R132 R139 RAF94 02 Resistor SMT MF 3 57K Ohm 1 1...

Page 62: ...tton Tactile SPST NO PWB S03 UC107 02 Rotary Encoder 20PPR Quadrature w MOM Push Bu U01 NAPP15 01 Directional Coupler Bottom PWB Assy A11 JT188 02 Conn Jack MCX 50Ohm Gold Vert SMT J01 J02 J03 RT73 02...

Page 63: ...ht W13 W14 UA316 01 Cable SATA 0 5m Straight F to Straight F Shiel W15 UA318 01 Cable Assembly Flat IDC 0 050 Tiger Eye 30 cond W16 UG130 01 Power Supply LED 12V 150W 90 305Vac PFC IP67 U02 UG136 01 P...

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Page 65: ...nal Standard ANSI Y32 14 1975 Graphic Symbols for Logic Diagrams Reference Designations Referenced designations were assigned in accordance with American Society of Mechanical Engineers ASME Y14 44 20...

Page 66: ...the active true state of the signal The high suffix indicates the more positive of the two levels used to represent the logic states The low suffix indicates the less positive of the two levels Two t...

Page 67: ...hat identify which blocks are the signal sources for inputs or the destinations for outputs When a sub function is treated as a block in figures SD 1 through SD 4 its detailed circuit information is i...

Page 68: ...Refer to the family trees in Section 3 2 Parts Information on page 3 2 1 2 Follow the family tree branches to the block that contains the desired reference designation while noting the Nautel nomencla...

Page 69: ...er Ac and RF Power Stages SD 5 NAPI189 Analog Audio PWB Sheet 1 of 2 SD 6 NAPI189 Analog Audio PWB Sheet 2 of 2 SD 7 NAPI187 System Interface PWB Sheet 1 of 2 SD 8 NAPI187 System Interface PWB Sheet 2...

Page 70: ...VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS PAGE 3 3 6 VERSION 0 1 2020 12 01...

Page 71: ...GND DIGITAL INPUT 5 DIGITAL INPUT 6 DISPLAY U1 MODULE 20 17 18 15 12 13 10 7 8 5 2 3 19 16 14 11 9 6 4 1 J3 20 17 18 15 12 13 10 7 8 5 2 3 19 16 14 11 9 6 4 1 CN1 3 3V GND DISPLAY CLK DISPLAY MISO DIS...

Page 72: ...ITOR J1 V A TB1 FROM SHEET 1 J6 J5 PART OF SYSTEM INTERFACE A3 PWB J1 12V 12V GND I2C SCL RS485 I2C SDA GND UNIT ID B5 MARGIN SHELF ADDRESS D1 C4 C1 RS485 LOGIC GND A3 UNIT ADDRESS A1 GND P3 VAC L1 P1...

Page 73: ...TAL INPUT 5 DIGITAL INPUT 6 DISPLAY U1 MODULE 20 17 18 15 12 13 10 7 8 5 2 3 19 16 14 11 9 6 4 1 J3 20 17 18 15 12 13 10 7 8 5 2 3 19 16 14 11 9 6 4 1 CN1 3 3V GND DISPLAY CLK DISPLAY MISO DISPLAY MOS...

Page 74: ...A13 PWB A B C DIRECTIONAL A11 PWB COUPLER J3 J2 A RF OUT J1 RF MONITOR J1 V A TB1 FROM SHEET 1 J6 J5 PART OF SYSTEM INTERFACE A3 PWB E2 E1 J1 12V 12V GND I2C SCL RS485 I2C SDA GND UNIT ID B5 MARGIN S...

Page 75: ...R12 3 3V 2 2 C11 0 1 C10 3 3 H L1 3 3V 10 0K R23 56 2K R24 12V 15 0K R29 56 2K R28 8V 56 2K R49 10 0K R27 3 3V 8V 15 0K R21 39 2K R20 5V A 10 0K R57 10 0K R56 10 0K R80 5 6 7 U4B BAT54HT1 CR3 PILOT S...

Page 76: ...4075 2ARZ U19C V 4 V 8 ADA4075 2ARZ U18C 25 5 2W R116 25 5 2W R141 0 1 C56 1 0 C55 8V 0 1 C113 1 0 C112 8V 0 1 C83 1 0 C73 8V 0 1 C121 1 0 C120 8V GND2 GND2 GND2 GND2 GND2 GND2 GND2 3300pF C77 GND2 15...

Page 77: ...11 12 J8 12 14 J8 14 2N7002LT1 Q3 121 R61 22 1K R58 3 3V 22 1K R70 3 3V GAT 20 OUT 3 GND 4 GND 2 IN 1 U9 1 J4 1 2 J4 2 3 J4 3 4 J4 4 5 J4 5 6 J4 6 7 J4 7 8 J4 8 9 J4 9 10 J4 10 PB7 12 PE0 35 PE1 36 4...

Page 78: ...12 1K R34 J6 J5 RF DRIVE IN RF DRIVE OUT 150 1 4W R40 150 1 4W R39 50V 6 8pF C49 BAT54HT1 CR1 PB1 6 0 1 50V C46 10 0K R47 10 0K R50 0 001 50V C53 3320 R52 PH0 55 PH1 56 PH2 57 PH3 58 PH4 59 PH5 60 PK3...

Page 79: ...TEM INTERFACE MODULE PRESENT POWER FAIL WARNING PROTOCOL PS ON UNIT ADDRESS OUTPUT ENABLE MARGIN PAV PAV AC TO 12V SUPPLY RS485 RS485 TO POWER SUPPLY I2C TO SYSTEM INTERFACE PAV 1 12V 235 4050 01 SCH0...

Page 80: ...3 3V 12V 0 1 25V C20 3 3V 3 3V TO SYSTEM INTERFACE MODULE PRESENT POWER FAIL WARNING PROTOCOL PS ON UNIT ADDRESS OUTPUT ENABLE MARGIN PAV PAV AC TO 12V SUPPLY I2C TO SYSTEM INTERFACE PAV 1 PAV 2 12V 2...

Page 81: ...3 3V 3 1 2 4 S3 1 2 A B C MTG1 MTG2 PEC11L 4120F S0020 U1 7 1 10W 10 0K R11 1 10W 10 0K R9 3 3V 3 3V 1 10W 10 0K R8 50V 0 01 C2 1 10W 10 0K R10 50V 0 01 C3 1 6 3 5 2 4 R 7 8 G S2 1 10W 10 0K R17 1 10...

Page 82: ...06 15 7 06 15 7 06 15 7 06 15 4 4 4 4 S S S S S S S S S S S S 9 9 9 9 5 5 5 5 5 5 5 5 S S S S S S S S S S S S 3 92 76 6 03 3 92 76 6 03 3 92 76 6 03 3 92 76 6 03 3 9 3 9 3 9 3 9 5 1387 5 1387 5 1387...

Page 83: ...pF C18 470pF C19 470pF C20 10 1 4W R1 12pF 250V C3 E2 470pF 300V C14 470pF 300V C21 12pF C15 12pF C22 MRFX1K80H Q1 1 MRFX1K80H Q1 2 0 1 C12 0 1 C1 0 022 H L3 J1 PA VOLTS RF DRIVE RF OUT 100pF C7 E1 23...

Page 84: ...0 12 01 SD 14 Figure SD 14 NAPF16 Low Pass Filter PWB E1 A L1 L2 L3 1 5pF 1500V C6 3 3pF 1500V C8 1 8pF 1500V C10 5 6pF 1500V C7 5 6pF 1500V C9 235 6020 SCH01 SchDoc V A C1 C2 C3 C4 DENOTES FORMED BY...

Page 85: ...ure SD 15 NAPP15 Directional Coupler Bottom PWB 5 5 5 5 5 287 5 287 5 287 5 287 6 9 6 9 6 9 6 9 5 3 5 6 03 5 3 5 6 03 5 3 5 6 03 5 3 5 6 03 5 021 725 5 021 725 5 021 725 5 021 725 3 5 6 03 3 5 6 03 3...

Page 86: ...1 5 VX2 2 235 6270 SCH01 SchDoc V A J1 J2 J3 1 J4 1 2 J4 2 3 J4 3 4 J4 4 5 J4 5 6 J4 6 7 J4 7 8 J4 8 9 J4 9 10 J4 10 500V 27pF C7 500V 24pF C5 50V 0 001 C4 50V 0 001 C3 50V 0 01 C2 50V 0 01 C1 30W 100...

Page 87: ...ts own assembly detail drawing and it is also shown in a higher level assembly the detail depicted in the higher level assembly may have minor differences from the module or assembly actually installe...

Page 88: ...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 5 VX2 MD 7 NAPI193 Front Panel User Interface...

Page 89: ...OP COVER REMOVED FOR CLARITY 12 V POWER SUPPLY MODULE U2 ANALOG AUDIO PWB A2 PS INTERFACE PWB A4 located under panel ORBAN AUDIO PROCESSOR optional A14 POWER SUPPLY MODULE U3 POWER AMPLIFIER A7 LOW PA...

Page 90: ...VERSION 0 1 2020 12 01 MD 2 Figure MD 2 VX1 5 VX2 Transmitter NOT AVAILABLE AT TIME OF PRINT...

Page 91: ...VERSION 0 1 2020 12 01 MD 3 Figure MD 3 NAPI189 Analog Audio PWB...

Page 92: ...VERSION 0 1 2020 12 01 MD 4 Figure MD 4 NAPI187 System Interface PWB...

Page 93: ...VERSION 0 1 2020 12 01 MD 5 Figure MD 5 NAPI188 01 Power Supply Interface PWB VX150 VX300 VX600...

Page 94: ...VERSION 0 1 2020 12 01 MD 6 Figure MD 6 NAPI188 Power Supply Interface PWB VX1 VX1 5 VX2...

Page 95: ...VERSION 0 1 2020 12 01 MD 7 Figure MD 7 NAPI193 Front Panel User Interface PWB...

Page 96: ...VERSION 0 1 2020 12 01 MD 8 Figure MD 8 NAPA41 Pre Amp IPA PWB...

Page 97: ...VERSION 0 1 2020 12 01 MD 9 Figure MD 9 NAPA40 Power Amplifier PWB...

Page 98: ...VERSION 0 1 2020 12 01 MD 10 Figure MD 10 NAPF16 Low Pass Filter PWB...

Page 99: ...VERSION 0 1 2020 12 01 MD 11 Figure MD 11 NAPP15 Directional Coupler PWB...

Page 100: ...VERSION 0 1 2020 12 01 MD 12 Figure MD 12 NAPH15 2 Way Splitter PWB VX1 5 VX2...

Page 101: ...VERSION 0 1 2020 12 01 MD 13 Figure MD 13 2 Way Combiner PWB Nautel Part PU03A VX1 5 VX2...

Page 102: ...ns high VSWR No shutbacks or cutbacks have occurred LED Light Emitting Diode also referred to as lamp LVPS Low Voltage Power Supply A module or modules used in the ac dc power stage that generates the...

Page 103: ...VX150 TO VX2 TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 3 5 2 VERSION 0 1 2020 12 01...

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Page 105: ...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 Servi...

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