Nautel VX150 Troubleshooting Manual Download Page 79

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VX150 TO VX2 TROUBLESHOOTING MANUAL

PARTS INFORMATION

VERSION 2.0 2023-04-20

PAGE 3.2.5

Figure 3.2.2: VX1 Family Tree

(NARF79A)

235-8100-01-FAM01 Iss. B

NAPE90/01

**EXCITER PWB

NARF79A

VX1

NAPI189

ANALOG AUDIO PWB

NAPI187A

SYSTEM INTERFACE PWB

NAPI193

FRONT PANEL USER INTERFACE PWB

NAPA41

PRE-AMP/IPA PWB

NAPA40A

POWER AMPLIFIER PWB

NAPF16A

PA LOW PASS FILTER PWB

A10

NOT USED

NAPP15A

A11

DIRECTIONAL COUPLER BOTTOM PWB

NAPI188

POWER SUPPLY INTERFACE PWB, 3.5 kW

A12

NOT USED

A13

NOT USED

(OPTIONAL)

A14

AUDIO PROCESSOR PWB

UR119

DISPLAY, LCD, 3.5”, COLOUR

UG130

POWER SUPPLY, 12 V @ 150 W

UG136

POWER SUPPLY, 23-65 V, 3500 W

** DENOTES THE NAPE90 EXCITER IS CONSIDERED PROPRIETARY BY NAUTEL. COMPONENT DETAILS ARE NOT PROVIDED IN THIS MANUAL.

235-5910

SD CARD, PROGRAMMED

Summary of Contents for VX150

Page 1: ...3 TROUBLESHOOTING MANUAL VX150 TO VX2 FM BROADCASTTRANSMITTER Document ID NHB VX150 VX2 TRB Version 2 0 Issue Date 2023 04 20 Status Standard...

Page 2: ......

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...

Page 4: ......

Page 5: ...nalog Audio PWB Replacement 3 1 40 PA Power Supply Replacement 3 1 43 Power Supply 12 V Replacement 3 1 45 Cooling Fan Replacement 3 1 48 Front Panel User Interface FPUI Display Replacement 3 1 54 Pow...

Page 6: ...tions 3 4 1 Unique Symbols 3 4 2 Identifying Schematic Diagrams 3 4 2 Structure of Schematics 3 4 3 Locating Schematic Diagram s for a Functional Block 3 4 3 Locating a Part or Assembly on a Schematic...

Page 7: ...2 0 2023 04 20 PAGE VII RELEASE CONTROL RECORD ISSUE DATE REASON 2 0 2023 04 20 Release 2 for VX low power models Supports hardware versions VX150 VX300 VX600 NARF81A VX1 NARF79A VX1 5 VX2 NARF80A Sup...

Page 8: ...VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE VIII VERSION 2 0 2023 04 20...

Page 9: ...encies that arise during transmitter operation Local and or remote alarm signals are generated when a malfunction occurs If an alarm condition is caused by a malfunction in the RF power stage the tran...

Page 10: ...r troubleshooting consists of monitoring the transmitter s integral meters and fault alarm indicators Analysis of this data will normally identify the type of fault and in most cases will determine wh...

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: ...able 3 1 1 on page 3 1 7 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 a suspect PWB p...

Page 14: ...cks on page 3 1 35 NOTE Table 3 1 1 on page 3 1 7 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...

Page 15: ...istribution to the transmitter Verify that the threshold level programmed in the active preset is below the normal audio input level by checking the AES1 2 Left meter Verify that the configured timeou...

Page 16: ...ctive preset is below the normal audio input level by checking the AES1 2 Right meter Verify that the configured timeout is long enough to cover any silence or dips in signal level AES1 2 Right Low Ba...

Page 17: ...io on that port through the AES2 Left and Right Meters The meters will show a N A value if the source is unlocked AES2 Unlocked The AES2 audio input is receiving invalid data or no data at all The AES...

Page 18: ...the Analog Audio PWB Check the connection between the Exciter and Analog Audio PWB Consider replacement of the Analog Audio PWB See Analog Audio PWB Replacement on page 3 1 40 Analog Audio PWB DC Volt...

Page 19: ...at the configured timeout is long enough to cover any silence or dips in signal level Swap the Analog Left and Right Inputs to verify whether the issue follows the source or the input Analog Left Low...

Page 20: ...at the configured timeout is long enough to cover any silence or dips in signal level Swap the Analog Left and Right Inputs to verify whether the issue follows the source or the input Analog Right Low...

Page 21: ...will clear this alarm and reset the timeout This alarm will be suppressed if the Low Audio or Low Backup Audio alarm for the source feeding the Audio Processor is active Check that the cable between t...

Page 22: ...ternal 10 MHz signal Component failure on the Exciter PWB Consider replacement of the Exciter PWB See Exciter PWB Replacement on page 3 1 37 DMPX 1 2 Low Audio The DMPX1 2 input level has fallen below...

Page 23: ...hold for longer than the user configured timeout The DMPX2 input must be configured as the backup audio source in the active preset for this alarm to trigger The Backup Low Audio Alarm must be enabled...

Page 24: ...2 on the System Interface PWB Consider replacement of the Exciter PWB System Interface PWB or the 12V Power Supply See Exciter PWB Replacement on page 3 1 37 or Power Supply 12 V Replacement on page 3...

Page 25: ...hooting for that alarm Check the corresponding voltage test points on the Exciter PWB using a digital multimeter The next most likely cause is a component failure on the Exciter PWB Consider replaceme...

Page 26: ...he System Interface PWB Replace Fan 1 2 as needed Note that Fan 1 2 in inactive when RF is OFF therefore this alarm will clear if RF is turned OFF See Cooling Fan Replacement on page 3 1 48 Fan Fail S...

Page 27: ...isplay Replacement on page 3 1 54 High Ambient Temperature Shutback The Ambient Temperature meter has exceeded 55 C for at least 1 minute This alarm will temporarily inhibit RF until cleared to protec...

Page 28: ...h RF Drive The RF drive power meter measuring power out of the IPA is greater than the model specific maximum drive limit The RF drive power meter measuring power out of the IPA is less than the model...

Page 29: ...ware update to restore the SD card to a functional state Host Not Responding The DSP has not had any communication from the Host for greater than 60 seconds The remote AUI may not be available while t...

Page 30: ...rms are triggered then consider replacing the IPA See Pre Amplifier IPA PWB Replacement on page 3 1 65 IPA Fail The IPA current is less than 200mA when RF is ON or the IPA voltage sample is less than...

Page 31: ...eter is less than 0 C No action is taken on this alarm This alarm will automatically clear when the Ambient Temperature meter is greater than 5 C Check site heating or ventilation system Allow transmi...

Page 32: ...this alarm can inhibit RF see Modulation Loss Shutback or change presets if configured to do so in the active preset This alarm will clear immediately once the modulation meter is greater than the us...

Page 33: ...the composite feed connected to the MPX1 2 input The most likely cause of this alarm is an interruption in composite distribution to the transmitter Verify that the threshold level programmed in the a...

Page 34: ...ossible that the license file has become unreadable due to corruption Contact Nautel customer support for your transmitter s license key and instructions on how to re load the key On Audio Backup This...

Page 35: ...m is cleared by starting the Autobias routine Performing an alarm reset will clear this alarm Check PA 2 connections fuse and FET The most likely cause of this alarm is a bad connection or failed PA A...

Page 36: ...reset will clear this alarm The likely cause is corruption of a stored preset Edit the preset to verify that all the settings are correct A preset that was valid for a different model transmitter has...

Page 37: ...ted to the MPX1 2 input The most likely cause of this alarm is an interruption in composite distribution to the transmitter Verify that the threshold level programmed in the active preset is below the...

Page 38: ...occur This alarm will clear immediately when the AES2 left input level has increased above the configured threshold Performing an alarm reset will clear this alarm and reset the timeout Check the audi...

Page 39: ...instead provides a summary indication that the system has active alarms This serves as a method if indication when monitoring the transmitter via SNMP or the Remote IO Interface Check the transmitter...

Page 40: ...he antenna Check for faults in transmission line or the antenna system measure load SWR at the transmitter output Be cautious when adjusting the SWR foldback threshold as directivity error is pronounc...

Page 41: ...tical behavior to the External Interlock Alarm When enabled the System Controller Interlock acts in series with the External Interlock The Transmitter must be set up as an N 1 system using a Nautel Sy...

Page 42: ...RESPONDING TO ALARMS VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3 1 34 VERSION 2 0 2023 04 20...

Page 43: ...lifier PWB Replacement on page 3 1 60 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 replace the original suspect PA PWB If...

Page 44: ...ded with the transmitter contains videos mp4 format that support the replacement procedures in this section Go to the USB s HOME screen and click VIDEOS Videos for replacing LRUs are listed in the Mai...

Page 45: ...ch 5 Remove and retain the SD card from the rear of the transmitter 6 Remove and retain the 21 M3 screws securing the top cover Remove cover 7 Disconnect the five cables from Exciter PWB six cables if...

Page 46: ...VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS PAGE 3 1 38 VERSION 2 0 2023 04 20 Figure 3 1 4 Cable Disconnections Figure 3 1 5 BNC Connector Removal Cables to disconnect...

Page 47: ...val tool Nautel Part HAS78 found in the ancillary kit Figure 3 1 6 XLR Connector Lock Removal 14 Remove and retain the four 4 screws securing the two XLR connectors 15 Remove and retain the six M3 scr...

Page 48: ...bench 4 Remove and retain the 21 M3 screws securing the top cover Remove cover 5 Disconnect ribbon cable from J5 of the Analog Audio PWB 6 Remove and retain the two M3 screws securing the Analog Audio...

Page 49: ...the four 4 screws near the ANALOG AUDIO connectors on the rear panel 10 Remove and retain the three locking rings from three BNC connectors two MPX SCA and one 19 kHz OUT using the Knurled Nut Tool N...

Page 50: ...Audio PWB Nautel Part NAPI189 13 Remove the Push Button Connector Locks from the new Analog Audio PWB if present 14 Install the Analog Audio PWB by reversing Step 4 to Step 11 Torque all hardware to...

Page 51: ...the PA Power Supply from the front of the transmitter 3 Locate or obtain a replacement PA Power Supply Nautel Part UG132 for VX150 VX300 VX600 or UG136 for VX1 VX1 5 VX2 4 Using Figure 3 1 10 on page...

Page 52: ...ush Panel Latch on and lift handle outwards swing to the left Remove Power Supply INSTALLATION Push Panel Latch In and lift handle outwards swing to the left Insert Power Supply until it seats in the...

Page 53: ...log Audio PWB Replacement see page 3 1 40 for instructions See MD 1or MD 2 in the Mechanical Drawings section of this manual to locate the power supply 1 Turn RF off and disconnect ac power from the t...

Page 54: ...t cable ties securing wiring 9 Disconnect wiring from TB2 on the System Interface PWB A3 NAPI187 noting connections Cut cable ties securing wiring 10 Remove and retain the four sets of M4 hardware sec...

Page 55: ...0 12 Install the power supply by reversing Step 8 to Step 10 Torque hardware to 6 in lbs 0 68 N m 13 Secure wiring with new cable ties Nautel Part HT77 found in the ancillary kit 14 Re install the Exc...

Page 56: ...applicable remove and retain the four screws securing the transmitter in the rack 3 Place the transmitter on a suitable workbench 4 Remove the PA Power Supply as described in PA Power Supply Replacem...

Page 57: ...1 49 Figure 3 1 14 Removal of Air Deflector M3 screws 9 Carefully tilt the Heatsink Air Deflector to allow the Fan Splitter to be removed being careful not to pinch or strain the cabling See Figure 3...

Page 58: ...1 16 Fan Splitter Removal 10 Remove and retain the four M3 screws securing the Filter Securing Panel and filter media See Figure 3 1 17 Figure 3 1 17 Air Filter and Media Bracket Removal 11 Remove an...

Page 59: ...ble from the Wire Clip Disconnect fan cable B1 A3J1 and or B2 A3J2 from the System Interface PWB See Figure 3 1 19 Figure 3 1 19 Disconnecting Fan Wiring 13 Move the fan away from the Air Deflector an...

Page 60: ...Relocation Figure 3 1 21 Fan Removal 14 Obtain the replacement fan s Nautel part ZAP68 15 Note the orientation of the fan when installing The Airflow indicator arrows on the fan should be pointing up...

Page 61: ...the transmitter by sliding the fan under the Air Deflector See Figure 3 1 23 Figure 3 1 23 Fan Installation Fan B2 shown for reference 17 Complete the Installation of the fan s by reversing Step 5 to...

Page 62: ...Turn RF off and disconnect ac power from the transmitter 2 If applicable remove and retain the four screws securing the transmitter in the rack 3 Place on a suitable workbench 4 Remove the PA Power S...

Page 63: ...4 20 PAGE 3 1 55 7 Disconnect the fan wiring noting connections See Figure 3 1 25 Figure 3 1 25 Fan Wiring Removal 8 Disconnect the ribbon cable from J3 on the System Interface PWB A3 and unhook from...

Page 64: ...SION 2 0 2023 04 20 9 Cut the securing cable tie and disconnect cable from FPUI Display See Figure 3 1 27 Figure 3 1 27 FPUI Cable Disconnect 10 Release the Fan wiring securing clamp by squeezing the...

Page 65: ...3 04 20 PAGE 3 1 57 11 Move the fan wiring to allow FPUI Display removal See Figure 3 1 29 Figure 3 1 29 Fan Wiring Removal 12 Remove and retain the four 10 screws two per side securing the front pane...

Page 66: ...he front panel See Figure 3 1 31 Figure 3 1 31 FPUI Bracket Removal 14 Remove the FPUI bracket 15 Disconnect the FPUI ribbon cable and four M3 screws securing the FPUI display to the front panel Retai...

Page 67: ...nd Figure 3 1 34 Figure 3 1 33 Display Handling Precautions Figure 3 1 34 Protective Film Removal 19 Complete the Installation of the FPUI Display by reversing Step 4 to Step 15 Torque all metric hard...

Page 68: ...5 VX2 transmitters refer to Mechanical Drawing MD 2 to determine the location of PA1 and PA2 1 Turn RF off and disconnect ac power from the transmitter 2 If applicable remove and retain the four scre...

Page 69: ...ain the four M2 5 screws securing the Filter Cover and remove the cover See Figure 3 1 36 Figure 3 1 36 Filter Cover Removal 7 Remove and discard the two M3 screws securing the jumper between the Filt...

Page 70: ...ying to break the seal from the underlying thermal pad 11 Remove the PA PWB and thermal pad and discard See Figure 3 1 38 Figure 3 1 38 Thermal Pad Removal 12 Clean the heatsink of any residual therma...

Page 71: ...6 NAPA40 Replacement Kit 16 Apply a thin even layer of thermal compound to the FET flange using the thermal compound applicator See Figure 3 1 40 Figure 3 1 40 PA PWB Thermal Compound Application 17 S...

Page 72: ...versing Step 2 to Step 9 Use three M3 screws Nautel part HMSP08F from the PA Replacement kit Torque for securing E1 and the jumper Torque all hardware to 6 in lbs 0 68 N m NOTE Replacement M2 5 PA scr...

Page 73: ...onnect ac power from the transmitter 2 If applicable remove and retain the four screws securing the transmitter in the rack 3 Place the transmitter on a suitable workbench 4 Remove and retain the 21 M...

Page 74: ...NAPA41 Replacement Kit 10 Apply a thin even layer of thermal compound to the entire backside of the IPA PWB using the thermal compound applicator See Figure 3 1 42 Figure 3 1 42 IPA PWB Thermal Compo...

Page 75: ...VX600 see Figure 3 2 1 on page 3 2 4 VX1 see Figure 3 2 2 on page 3 2 5 VX1 5 VX2 see Figure 3 2 3 on page 3 2 6 The family tree is based on the descending order of the reference designation hierarchy...

Page 76: ...ation and associated Nautel Part in the list provided at the end of this section In a PDF manual use Ctrl F find to quickly locate the reference designation Reference Designation Lists Reference desig...

Page 77: ...component level 02 items with continuing indentations to identify each new level Stock Code This number is Nautel s drawing number for Nautel manufactured parts Nautel s configuration control number...

Page 78: ...PWB NAPA41 A6 PRE AMP IPA PWB NAPA40A A7 POWER AMPLIFIER PWB A9 NAPF16A PA LOW PASS FILTER PWB A10 NOT USED A8 NOT USED NAPP15A A11 DIRECTIONAL COUPLER BOTTOM PWB NAPI188 01 A4 POWER SUPPLY INTERFACE...

Page 79: ...PRE AMP IPA PWB NAPA40A A7 POWER AMPLIFIER PWB A9 NAPF16A PA LOW PASS FILTER PWB A10 NOT USED A8 NOT USED NAPP15A A11 DIRECTIONAL COUPLER BOTTOM PWB NAPI188 A4 POWER SUPPLY INTERFACE PWB 3 5 kW A12 N...

Page 80: ...PWB NAPA40A A7 POWER AMPLIFIER PWB A9 NAPF16A PA LOW PASS FILTER PWB NAPF16A A10 PA LOW PASS FILTER PWB NAPA40A A8 POWER AMPLIFIER PWB NAPP15A A11 DIRECTIONAL COUPLER BOTTOM PWB NAPI188 A4 POWER SUPP...

Page 81: ...onn Coax Recept 7 16 DIN Panel 50ohm J01 LA82C 01 Inductor Air Core 16 AWG magnet 17 Turn 0 27 L01 NAPA40A 01 PA PWB Assy A07 CB48 02 Capacitor SMT Clad Mica 100pF 300V 5 T R C07 CT102 02 Capacitor SM...

Page 82: ...CFS07 02 Cap SMT Ceramic 0 1uF 10 50V X7R 0805 C08 CT112 02 Cap SMT Elect Alum Polymer 100uF 20 25V C06 CT116 02 Capacitor SMT 6 8pF 0 25pF 250V NP0 0805 C12 CT117 02 Capacitor SMT 33pF 1 250V NP0 080...

Page 83: ...C394 C395 C396 C399 C400 C401 C405 C406 C407 C408 C410 C411 C412 C413 CCFS89 02 CAP SMT Ceramic 22uF Low ESR 25V 20 0603 C056 C062 CCFS90 02 CAP SMT Ceramic 10uF Low ESR 25V 20 0603 C044 C046 C048 C0...

Page 84: ...446 C447 C448 C449 C450 C452 C455 C456 C462 C464 C466 C470 C472 C474 C475 C476 C477 CCJ04 02 Cap SMT Ceramic 1uF 10 25V X5R 0402 C005 C009 C017 C021 C023 C030 C035 C037 C040 C047 C051 C054 C061 C080 C...

Page 85: ...D CARD PUSH PUSH R A XU63 JR51 02 Terminal Block 2 pos PWB Mount J07 JT121 02 Conn Dual D Sub F M 9 pin Rt Angle PWB J06 JT188 02 Conn Jack MCX 50Ohm Gold Vert SMT J09 J10 JT203 02 Conn Micro USB 2 0...

Page 86: ...44 R147 R156 R161 R225 R230 R241 R264 R268 R320 R328 R349 R350 R385 R409 R410 RAF10 02 Resistor SMT MF 4 75 Ohm 1 1 16W 0402 R005 R006 R012 R013 RAF20 02 Resistor SMT MF 33 2 Ohm 1 1 16W 0402 R062 R07...

Page 87: ...R290 R302 R308 R313 R314 R315 R335 R337 R342 R345 R346 R347 R348 R351 R352 R353 R356 R360 R378 R388 R411 R412 R413 R414 RAF53 02 Resistor SMT MF 18 2K Ohm 1 1 16W 0402 R071 RAF56 02 Resistor SMT MF 33...

Page 88: ...S02 02 IC SMT Opamp Quad Rail To Rail SOIC 14 U13 UM107 02 Filter SMT 110 MHz Low Pass 50 Ohm Elliptic U02 UMDS01 02 IC SMT DAC 8 Bit 4 ch SPI SOIC 14 U14 UP108 02 IC SMT Quad USB Power Contro ller SO...

Page 89: ...00 3 3V 1 Port LQF U35 UX193 02 IC SMT USB 2 0 Hub 4 Port HTQFP 64 U36 UX195 02 IC SMT Optocoupler Quad 3750Vrms ISO SO16 U12 U17 U28 UX206 02 IC SMT Memory 2Gb DDR3L SDRAM 128Mx16 96FBGA U59 U60 UX20...

Page 90: ...0V 0 25pF 1206 C49 HAJ66 02 Terminal SMT Test Point PWB TP03 TP14 JF47 02 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...

Page 91: ...R37 R42 R47 R50 R51 R55 R65 R69 R79 R81 R82 R89 R96 RAF54 02 Resistor SMT MF 22 1K Ohm 1 1 16W 0402 R21 R22 R27 R28 R45 R48 R49 R58 R59 R60 R67 R70 R73 RAF56 02 Resistor SMT MF 33 2K Ohm 1 1 16W 0402...

Page 92: ...0ohms 1 1 10W 0603 R09 R14 RFFS27 02 Resistor SMT MF 121ohms 1 1 10W 0603 R04 R05 R06 R07 RFFS34 02 Resistor SMT MF 475ohms 1 1 10W 0603 R03 R10 RFFS38 02 Resistor SMT MF 1000ohms 1 1 10W 0603 R29 R30...

Page 93: ...13 02 Cap SMT Ceramic 3300pF 10 50V X7R 0402 C077 CCJ19 02 Cap SMT Ceramic 470pF 1 50V C0G 0402 C042 C076 C122 CCJ20 02 Cap SMT Ceramic 15pF 1 50V C0G 0402 C099 CCJ26 02 Cap SMT Ceramic 220pF 1 50V CO...

Page 94: ...istor SMT MF 221K Ohm 1 1 16W 0402 R087 R120 RAF74 02 Resistor SMT MF 1 00M Ohm 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...

Page 95: ...stor SMT MF 22 1ohms 1 1 10W 0603 R20 R21 RFFS26 02 Resistor SMT MF 100ohms 1 1 10W 0603 R12 R16 RFFS28 02 Resistor SMT MF 150ohms 1 1 10W 0603 R03 R05 R06 R14 R18 RFFS50 02 Resistor SMT MF 10 0Kohms...

Page 96: ...ight W07 W08 UA309 01 Cable Coax SRC 316 MCX M RA to BNC F Bulkhead W10 UA310 01 Cable Coax SRC 316 MCX M RA to MCX M RA 12 0 W11 UA311 01 Cable Coax SRC 316 MCX M RA to MCX M RA 16 0 W12 UA313 01 Cab...

Page 97: ...7 of 51 Description Final Assy VX1 Component Lvl StockCode Reference Designation Description UR119 01 Display TFT LCD 320x240 Graphic 3 5 Color SP U01 ZAP68 01 Fan 80mm 12Vdc PWM Ctrl Tach w Conn HS T...

Page 98: ...n Coax Recept 7 16 DIN Panel 50ohm J01 LA82C 01 Inductor Air Core 16 AWG magnet 17 Turn 0 27 L01 L02 NAPA40A 01 PA PWB Assy A07 A08 CB48 02 Capacitor SMT Clad Mica 100pF 300V 5 T R C07 CT102 02 Capaci...

Page 99: ...CCFS07 02 Cap SMT Ceramic 0 1uF 10 50V X7R 0805 C08 CT112 02 Cap SMT Elect Alum Polymer 100uF 20 25V C06 CT116 02 Capacitor SMT 6 8pF 0 25pF 250V NP0 0805 C12 CT117 02 Capacitor SMT 33pF 1 250V NP0 0...

Page 100: ...393 C394 C395 C396 C399 C400 C401 C405 C406 C407 C408 C410 C411 C412 C413 CCFS89 02 CAP SMT Ceramic 22uF Low ESR 25V 20 0603 C056 C062 CCFS90 02 CAP SMT Ceramic 10uF Low ESR 25V 20 0603 C044 C046 C048...

Page 101: ...C446 C447 C448 C449 C450 C452 C455 C456 C462 C464 C466 C470 C472 C474 C475 C476 C477 CCJ04 02 Cap SMT Ceramic 1uF 10 25V X5R 0402 C005 C009 C017 C021 C023 C030 C035 C037 C040 C047 C051 C054 C061 C080...

Page 102: ...T SD CARD PUSH PUSH R A XU63 JR51 02 Terminal Block 2 pos PWB Mount J07 JT121 02 Conn Dual D Sub F M 9 pin Rt Angle PWB J06 JT188 02 Conn Jack MCX 50Ohm Gold Vert SMT J09 J10 JT203 02 Conn Micro USB 2...

Page 103: ...R144 R147 R156 R161 R225 R230 R241 R264 R268 R320 R328 R349 R350 R385 R409 R410 RAF10 02 Resistor SMT MF 4 75 Ohm 1 1 16W 0402 R005 R006 R012 R013 RAF20 02 Resistor SMT MF 33 2 Ohm 1 1 16W 0402 R062 R...

Page 104: ...7 R290 R302 R308 R313 R314 R315 R335 R337 R342 R345 R346 R347 R348 R351 R352 R353 R356 R360 R378 R388 R411 R412 R413 R414 RAF53 02 Resistor SMT MF 18 2K Ohm 1 1 16W 0402 R071 RAF56 02 Resistor SMT MF...

Page 105: ...LAS02 02 IC SMT Opamp Quad Rail To Rail SOIC 14 U13 UM107 02 Filter SMT 110 MHz Low Pass 50 Ohm Elliptic U02 UMDS01 02 IC SMT DAC 8 Bit 4 ch SPI SOIC 14 U14 UP108 02 IC SMT Quad USB Power Contro ller...

Page 106: ...100 3 3V 1 Port LQF U35 UX193 02 IC SMT USB 2 0 Hub 4 Port HTQFP 64 U36 UX195 02 IC SMT Optocoupler Quad 3750Vrms ISO SO16 U12 U17 U28 UX206 02 IC SMT Memory 2Gb DDR3L SDRAM 128Mx16 96FBGA U59 U60 UX2...

Page 107: ...R 0402 C19 C22 C47 C65 C83 C84 CCJ03 02 Cap SMT Ceramic 0 1uF 10 50V X7R 0402 C01 C03 C05 C13 C16 C17 C18 C20 C21 C24 C25 C26 C27 C28 C29 C30 C31 C32 C37 C38 C40 C41 C42 C43 C44 C45 C46 C48 C50 C51 C5...

Page 108: ...R39 R40 RAD38 02 Resistor SMT MF 12 1K Ohms 1 1 4W R34 RAD93 02 Resistor SMT 0 01 ohms 1 1 4W 1206 R80 RAF24 02 Resistor SMT MF 68 1 Ohm 1 1 16W 0402 R98 RAF27 02 Resistor SMT MF 121 Ohm 1 1 16W 0402...

Page 109: ...S73 02 Cap SMT Ceramic 1uF 10 16V X5R 0603 C05 C14 CX33 02 Cap SMT Ceramic 4 7uF 20 10V X5R 1206 C06 HAC122 02 1 Pin Screw Terminal Power Tap M3 Surface Mount E01 E02 E03 E04 HAJ66 02 Terminal SMT Tes...

Page 110: ...C053 C056 C062 C065 C067 C082 C083 C085 C087 C088 C091 C095 C098 C100 C104 C108 C111 C113 C115 C121 C124 C127 C131 CCJ04 02 Cap SMT Ceramic 1uF 10 25V X5R 0402 C004 C009 C012 C014 C021 C024 C025 C027...

Page 111: ...9 R023 R025 R026 R027 R033 R035 R039 R041 R042 R050 R051 R053 R056 R057 R058 R066 R070 R073 R074 R075 R080 R085 R086 R089 R093 R096 R098 R101 R102 R104 R105 R106 R107 R108 R114 R119 R126 R134 R135 R14...

Page 112: ...ymer 100uF 20 25V C05 JA140 02 Conn USB Vertical Mount Type A PWB J04 JQ55 02 Conn Header Ribbon Cbl 20 Pin J03 JQ97 02 Conn Header SATA Vert PWB J01 JU96 02 Conn Header Shrouded 0 050 20pos Dual Row...

Page 113: ...5 RT01 RT02 UA295 01 Cable Assembly Flat IDC 0 050 Tiger Eye 10 con W01 UA296 01 Cable Assembly Flat IDC 0 050 Tiger Eye 16 con W02 UA297 01 Cable Assembly Flat IDC 0 050 Tiger Eye 20 con W03 UA298 01...

Page 114: ...2 UA313 01 Cable Coax SRC 316 MCX M RA to MCX M Straight 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...

Page 115: ...DP21 01 Conn Coax N Recept Panel 50ohm J01 LA82C 01 Inductor Air Core 16 AWG magnet 17 Turn 0 27 L01 NAPA40A 01 PA PWB Assy A07 CB48 02 Capacitor SMT Clad Mica 100pF 300V 5 T R C07 CT102 02 Capacitor...

Page 116: ...A06 CCFS07 02 Cap SMT Ceramic 0 1uF 10 50V X7R 0805 C08 CT112 02 Cap SMT Elect Alum Polymer 100uF 20 25V C06 CT116 02 Capacitor SMT 6 8pF 0 25pF 250V NP0 0805 C12 CT117 02 Capacitor SMT 33pF 1 250V NP...

Page 117: ...2 C393 C394 C395 C396 C399 C400 C401 C405 C406 C407 C408 C410 C411 C412 C413 CCFS89 02 CAP SMT Ceramic 22uF Low ESR 25V 20 0603 C056 C062 CCFS90 02 CAP SMT Ceramic 10uF Low ESR 25V 20 0603 C044 C046 C...

Page 118: ...445 C446 C447 C448 C449 C450 C452 C455 C456 C462 C464 C466 C470 C472 C474 C475 C476 C477 CCJ04 02 Cap SMT Ceramic 1uF 10 25V X5R 0402 C005 C009 C017 C021 C023 C030 C035 C037 C040 C047 C051 C054 C061 C...

Page 119: ...SMT SD CARD PUSH PUSH R A XU63 JR51 02 Terminal Block 2 pos PWB Mount J07 JT121 02 Conn Dual D Sub F M 9 pin Rt Angle PWB J06 JT188 02 Conn Jack MCX 50Ohm Gold Vert SMT J09 J10 JT203 02 Conn Micro US...

Page 120: ...29 R144 R147 R156 R161 R225 R230 R241 R264 R268 R320 R328 R349 R350 R385 R409 R410 RAF10 02 Resistor SMT MF 4 75 Ohm 1 1 16W 0402 R005 R006 R012 R013 RAF20 02 Resistor SMT MF 33 2 Ohm 1 1 16W 0402 R06...

Page 121: ...R287 R290 R302 R308 R313 R314 R315 R335 R337 R342 R345 R346 R347 R348 R351 R352 R353 R356 R360 R378 R388 R411 R412 R413 R414 RAF53 02 Resistor SMT MF 18 2K Ohm 1 1 16W 0402 R071 RAF56 02 Resistor SMT...

Page 122: ...5 ULAS02 02 IC SMT Opamp Quad Rail To Rail SOIC 14 U13 UM107 02 Filter SMT 110 MHz Low Pass 50 Ohm Elliptic U02 UMDS01 02 IC SMT DAC 8 Bit 4 ch SPI SOIC 14 U14 UP108 02 IC SMT Quad USB Power Contro ll...

Page 123: ...t 10 100 3 3V 1 Port LQF U35 UX193 02 IC SMT USB 2 0 Hub 4 Port HTQFP 64 U36 UX195 02 IC SMT Optocoupler Quad 3750Vrms ISO SO16 U12 U17 U28 UX206 02 IC SMT Memory 2Gb DDR3L SDRAM 128Mx16 96FBGA U59 U6...

Page 124: ...8pF 50V 0 25pF 1206 C49 HAJ66 02 Terminal SMT Test Point PWB TP03 TP14 JF47 02 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...

Page 125: ...R32 R37 R42 R47 R50 R51 R55 R65 R69 R79 R81 R82 R89 R96 RAF54 02 Resistor SMT MF 22 1K Ohm 1 1 16W 0402 R21 R22 R27 R28 R45 R48 R49 R58 R59 R60 R67 R70 R73 RAF56 02 Resistor SMT MF 33 2K Ohm 1 1 16W...

Page 126: ...RFFS26 02 Resistor SMT MF 100ohms 1 1 10W 0603 R09 R14 RFFS27 02 Resistor SMT MF 121ohms 1 1 10W 0603 R04 R05 R06 R07 RFFS34 02 Resistor SMT MF 475ohms 1 1 10W 0603 R03 R10 RFFS38 02 Resistor SMT MF 1...

Page 127: ...5 CCJ13 02 Cap SMT Ceramic 3300pF 10 50V X7R 0402 C077 CCJ19 02 Cap SMT Ceramic 470pF 1 50V C0G 0402 C042 C076 C122 CCJ20 02 Cap SMT Ceramic 15pF 1 50V C0G 0402 C099 CCJ26 02 Cap SMT Ceramic 220pF 1 5...

Page 128: ...2 Resistor SMT MF 221K Ohm 1 1 16W 0402 R087 R120 RAF74 02 Resistor SMT MF 1 00M Ohm 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...

Page 129: ...Resistor SMT MF 22 1ohms 1 1 10W 0603 R20 R21 RFFS26 02 Resistor SMT MF 100ohms 1 1 10W 0603 R12 R16 RFFS28 02 Resistor SMT MF 150ohms 1 1 10W 0603 R03 R05 R06 R14 R18 RFFS50 02 Resistor SMT MF 10 0K...

Page 130: ...Straight W07 W08 UA309 01 Cable Coax SRC 316 MCX M RA to BNC F Bulkhead W10 UA310 01 Cable Coax SRC 316 MCX M RA to MCX M RA 12 0 W11 UA311 01 Cable Coax SRC 316 MCX M RA to MCX M RA 16 0 W12 UA313 0...

Page 131: ...51 Description Final Assy VX150 300 600 Component Lvl StockCode Reference Designation Description UR119 01 Display TFT LCD 320x240 Graphic 3 5 Color SP U01 ZAP68 01 Fan 80mm 12Vdc PWM Ctrl Tach w Conn...

Page 132: ......

Page 133: ...and Destination Mate columns in Table 3 3 4 and Table 3 3 5 Wire Colours Every effort is made to manufacture assemblies using the wire colour shown in the Colour column of the wiring list tables Somet...

Page 134: ...tch 14 cond 8 50 UA322 A1J12 A14J1 W1 Not Used W2 Cable Assembly Flat IDC 0 050 Tiger Eye 16 cond 2 25 UA296 A3J7 A6J3 W3 Cable Assembly Flat IDC 0 050 Tiger Eye 20cond 3 25 UA297 A1J11 A3J8 W4 Cable...

Page 135: ...sembly Flat IDC 0 100 pitch 20 cond 2 00 UA301 A5J3 U1CN1 W7 Cable Coax SRC 316 MCX M RA to MCX M Straight 5 0 UA307 A1J10 A6J1 W8 Cable Coax SRC 316 MCX M RA to MCX M Straight 5 0 UA307 A6J2 A3J6 W9...

Page 136: ...VX150 TO VX2 TROUBLESHOOTING MANUAL WIRING INFORMATION PAGE 3 3 4 VERSION 2 0 2023 04 20...

Page 137: ...dard 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 2008 Refer...

Page 138: ...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 types...

Page 139: ...y 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 6 its detailed circuit information is included in...

Page 140: ...c is added 1 Refer to the family trees in 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 nomencl...

Page 141: ...Sheet 1 of 2 SD 6 VX1 5 VX2 Transmitter System Schematic Sheet 2 of 2 SD 7 NAPI189 Analog Audio PWB Sheet 1 of 2 SD 8 NAPI189 Analog Audio PWB Sheet 2 of 2 SD 9 NAPI187A System Interface PWB Sheet 1 o...

Page 142: ...VX150 TO VX2 TROUBLESHOOTING MANUAL ELECTRICAL SCHEMATICS PAGE 3 4 6 VERSION 2 0 2023 04 20...

Page 143: ...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 MOSI DISPLAY CS DISPLA...

Page 144: ...RS485 B2 A2 VAC L2 N P2 VOUT VOUT OUTPUT ENABLE PROTOCOL A4 A5 P4 P5 P7 P6 1 2 3 FROM AC POWER SOURCE 185 265VAC 47 63 Hz LINE GND LINE NEUTRAL J3 POWER SUPPLY INTERFACE A4 PWB J1 TB1 LINE GND LINE N...

Page 145: ...PUT 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 MOSI DISPLAY CS DISPLAY R...

Page 146: ...B6 VAC L2 N P2 VOUT VOUT OUTPUT ENABLE PROTOCOL A4 A5 P4 P5 P7 P6 1 2 3 FROM AC POWER SOURCE 185 265VAC 47 63 Hz LINE GND LINE NEUTRAL J3 POWER SUPPLY INTERFACE A4 PWB J1 TB1 LINE GND LINE NEUTRAL POW...

Page 147: ...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 MOSI DISPLAY CS DISPLA...

Page 148: ...J6 J5 PART OF SYSTEM INTERFACE A3 PWB E2 E1 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 MODULE PRESENT PWR FA...

Page 149: ...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 U4 2 BAT54HT1 CR3 PILOT...

Page 150: ...75 2ARZ U19 3 V 4 V 8 ADA4075 2ARZ U18 3 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 15pF C99 GND2 GND2 GND2 GND2...

Page 151: ...2 J8L 14 J8N 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 J4A 2 J4B 3 J4C 4 J4D 5 J4E 6 J4F 7 J4G 8 J4H 9 J4I 10 J4J PB7 12 PE0 35 PE1 36 4 J10D 7 J10G I2C SDA...

Page 152: ...0 01 50V C22 1 4W 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...

Page 153: ...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 SCH01 S...

Page 154: ...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 23...

Page 155: ...2 PEC11L 4120F S0020 U1G 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 10W 150 R18 3 3V 1 10W 22 1 R21 1 10W...

Page 156: ...O 16 J3P 82pF C17 51pF C16 180pF C15 6 8pF C12 0 033 H L6 0 051 H L7 0 068 H L5 39 R4 47 5K R3 0 01 C14 AFT05MS031GNR1 Q1 180pF C9 180pF C5 1000pF C11 0 01 C10 25V 100 C6 0 005 H L4 4750 R2 0 033 H L2...

Page 157: ...0pF C18 470pF C19 470pF C20 10 1 4W R1 12pF 250V C3 E2 470pF 300V C14 470pF 300V C21 12pF C15 12pF C22 MRFX1K80H Q1A MRFX1K80H Q1B 0 1 C12 0 1 C1 0 022 H L3 J1 PA VOLTS RF DRIVE RF OUT 100pF C7 E1 235...

Page 158: ...04 20 SD 16 Figure SD 16 NAPF16A 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 159: ...ure SD 17 NAPP15A 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 160: ...WB VX1 5 VX2 2 235 6270 SCH01 SchDoc V A J1 J2 J3 1 J4A 2 J4B 3 J4C 4 J4D 5 J4E 6 J4F 7 J4G 8 J4H 9 J4I 10 J4J 500V 27pF C7 500V 24pF C5 50V 0 001 C4 50V 0 001 C3 50V 0 01 C2 50V 0 01 C1 30W 100 R5 12...

Page 161: ...s 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 installed...

Page 162: ...ransmitter side view MD 5 VX Transmitter front view MD 6 NAPI189 Analog Audio PWB MD 7 NAPI187A System Interface PWB MD 8 NAPI188 01 Power Supply Interface PWB VX150 VX300 VX600 MD 9 NAPI188 Power Sup...

Page 163: ...ACE PWB A4 located under panel ORBAN AUDIO PROCESSOR optional A14 POWER SUPPLY 2 kW VX150 VX600 3 5 kW VX1 U3 located under cover PA PWB A7 PA LPF PWB A9 SYSTEM INTERFACE PWB A3 FRONT PANEL DISPLAY U1...

Page 164: ...VERSION 2 0 2023 04 20 MD 2 Figure MD 2 VX150 VX300 VX600 VX1 Transmitter side view TOP COVER REMOVED FOR CLARITY PRE AMP IPA PWB A6 located on the side of chassis...

Page 165: ...5 kW U3 SYSTEM INTERFACE PWB A3 EXCITER PWB A1 12V POWER SUPPLY U2 located under cover PA PWB 1 A7 PA LPF PWB A9 located under shield DIRECTIONAL COUPLER BOTTOM PWB A11 part of assembly shown located...

Page 166: ...ERSION 2 0 2023 04 20 MD 4 Figure MD 4 VX1 5 VX2 Transmitter side view PRE AMP IPA PWB A6 located on the side of chassis 2 WAY SPLITTER PWB A12 located on side of chassis TOP COVER REMOVED FOR CLARITY...

Page 167: ...VERSION 2 0 2023 04 20 MD 5 Figure MD 5 VX Transmitter front view POWER SUPPLY U3 UG132 for VX150 VX600 UG136 for VX1 VX2 FRONT PANEL DISPLAY U1 Fan1 B1 Fan2 B2 VX1 Shown for reference...

Page 168: ...VERSION 2 0 2023 04 20 MD 6 Figure MD 6 NAPI189 Analog Audio PWB...

Page 169: ...VERSION 2 0 2023 04 20 MD 7 Figure MD 7 NAPI187A System Interface PWB...

Page 170: ...VERSION 2 0 2023 04 20 MD 8 Figure MD 8 NAPI188 01 Power Supply Interface PWB VX150 VX300 VX600...

Page 171: ...VERSION 2 0 2023 04 20 MD 9 Figure MD 9 NAPI188 Power Supply Interface PWB VX1 VX1 5 VX2...

Page 172: ...VERSION 2 0 2023 04 20 MD 10 Figure MD 10 NAPI193 Front Panel User Interface PWB...

Page 173: ...VERSION 2 0 2023 04 20 MD 11 Figure MD 11 NAPA41 Pre Amp IPA PWB...

Page 174: ...VERSION 2 0 2023 04 20 MD 12 Figure MD 12 NAPA40A Power Amplifier PWB...

Page 175: ...VERSION 2 0 2023 04 20 MD 13 Figure MD 13 NAPF16A Low Pass Filter PWB...

Page 176: ...VERSION 2 0 2023 04 20 MD 14 Figure MD 14 NAPP15A Directional Coupler Bottom PWB...

Page 177: ...VERSION 2 0 2023 04 20 MD 15 Figure MD 15 NAPH15 2 Way Splitter PWB VX1 5 VX2...

Page 178: ...VERSION 2 0 2023 04 20 MD 16 Figure MD 16 2 Way Combiner PWB Nautel Part PU03B VX1 5 VX2...

Page 179: ...anel display that allows for extensive local control and monitoring of the transmitter LED Light Emitting Diode also referred to as lamp LVPS Low Voltage Power Supply A module or modules used in the a...

Page 180: ...VX LP TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 3 6 2 VERSION 2 0 2023 04 20...

Page 181: ......

Page 182: ...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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Nautel VX150, Troubleshooting Manual, Page: 79 / 182

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