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Nautel VX150 Manual

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3: TROUBLESHOOTING MANUAL
VX150
VX2
TO
FM B
T
ROADCAST
RANSMITTER
Document ID:
NHB-VX150-VX2-TRB
Version:
0.1
Issue Date:
2020-12-01
Status:
Preliminary

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Summary of Contents for Nautel VX150

  • Page 1 3: TROUBLESHOOTING MANUAL VX150 FM B ROADCAST RANSMITTER Document ID: NHB-VX150-VX2-TRB Version: Issue Date: 2020-12-01 Status: Preliminary...
  • Page 3 For verification of materials, the reader is encouraged to consult the respective manufacturer's most recent publication on the official website or through contact with Customer Service. © Copyright 2020 NAUTEL. All rights reserved. VERSION 0.1 2020-12-01 PAGE III...

  • Page 5: Table Of Contents

    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...
  • Page 6 VX150 TO VX2 TROUBLESHOOTING MANUAL TABLE OF CONTENTS 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 Drawing 3.4.1 List of terms 3.5.1 PAGE 3.VI VERSION 0.1 2020-12-01...
  • Page 7 VX150 TO VX2 TROUBLESHOOTING MANUAL RELEASE CONTROL RECORD ISSUE DATE REASON 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 0.1 2020-12-01...
  • Page 8 VX150 TO VX2 TROUBLESHOOTING MANUAL PAGE 3.VIII VERSION 0.1 2020-12-01...

  • Page 9: Responding To Alarms

      Replacement Procedures - see page 3.1.17 If none of the procedures and alarms described in this section address your problem, contact Nautel for assistance. See “Technical Support” in the Installation Manual. Corrective Maintenance Corrective maintenance procedures consist of identifying and correcting defects or deficiencies that arise during transmitter operation.
  • Page 10 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”...

  • Page 11: Electrostatic Protection

    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.

  • Page 12: Identifying And Troubleshooting An Alarm

    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”...
  • Page 13 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).
  • Page 14 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.
  • Page 15 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS contains a column for most alarms that can occur, sorted Table 3.1.1 on page 3.1.9 NOTE alphanumerically for each sub-system, including both the names displayed on the remote AUI and, if different, the front panel display. The...
  • Page 16 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Table 3.1.1: Troubleshooting Alarms Alarm Name Description and Troubleshooting Action Analog Audio PWB +12V This alarm occurs if the +12 V supply in the analog audio PWB is 10% lower or 10% higher Fail than the desired value.
  • Page 17 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Alarm Name 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.
  • Page 18 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.
  • Page 19 F1 of the PS Distribution PWB (A2). If the measurement is greater than 1 W, replace the fuse (Nautel Part # FA57 in the ancillary kit). If the measurement is less than 1 W, or replacing the fuse does not clear the alarm, replace the Pre-amp/IPA PWB (A5) (see “Pre-amp/IPA PWB replacement”...
  • Page 20 Check for associated alarms. Typically, the assertion of this alarm is the result of a PA failure or removal, or a high SWR condition. If no other alarms are being indicated, contact Nautel for further support PA Fail/PA1 Fail This alarm occurs if the dc input current for the PA (A7), also PA1 for VX1.5/VX2 transmitters)
  • Page 21 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.
  • Page 22 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.
  • Page 23 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.

  • Page 24: Replacement Procedures

    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 page 3.1.18...

  • Page 25: Pre-Amplifier/Ipa Pwb Replacement

    PWB. Remove and retain the four M3 screws securing the IPA PWB and remove. Obtain the replacement NAPA41 IPA PWB and thermal compound (Nautel part # HAG80) from Nautel. Spread a small amount of thermal compound thinly and evenly, on the underside of the IPA PWB.
  • Page 26 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Figure 3.1.4: Pre-Amp/IPA PWB Replacement Partial top view, cover RIBBON CABLE RF OUTPUT RF INPUT removed for clarity PAGE 3.1.18 VERSION 0.1 2020-12-01...

  • Page 27: Power Amplifier Pwb Replacement

    Remove and retain the eleven M2.5 screws securing the Power Amplifier PWB to the heat sink. Remove the Power Amplifier PWB. 10. Obtain the replacement PA Replacement kit (Nautel part # 235-5046) from the Station Spare kit (Nautel part # 235-5043).
  • Page 28 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS : Using a torque screwdriver, alternate tightening the left and right screws on each FET, a quarter NOTE turn at a time, until 6 inch-pounds (0.67 Newton-meters) of torque has been applied.
  • Page 29 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS PA Resistance Checks 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”...

  • Page 30: Power Supply Module Replacement

    Figure 3.1.7 on page 3.1.24 as a guide, remove the power supply module from the front of the transmitter. Locate or obtain a replacement power supply module (Nautel Part # UG132 for VX150/VX300/ VX600 or UG136 for VX1/VX1.5/VX2). Using Figure 3.1.7 on page 3.1.24 as a guide, reinstall the new power supply module.
  • Page 31 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS Figure 3.1.7: Removal of Power Supply Module VERSION 0.1 2020-12-01 PAGE 3.1.23...
  • Page 32 VX150 TO VX2 TROUBLESHOOTING MANUAL RESPONDING TO ALARMS PAGE 3.1.24 VERSION 0.1 2020-12-01...

  • Page 33: Parts Information

    To locate the information for a specific part, the assigned reference designation for the part must be known. In addition, the Nautel nomenclature (e.g., NAPA40) assigned to the assembly containing the part or the full reference designation, including the reference designation of all higher assemblies, must be known.

  • Page 34: Column Content

    Nautel configuration control number.  Locate the part's reference designation 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 designation lists are provided for assemblies that are assigned an alpha-prefixed Nautel nomenclature (e.g., NAPA40) or a numbered Nautel part (e.g., 235-8050).
  • Page 35 NOTE manufacturer (OEM) information (i.e., vendor part numbers). Some vendor information is provided in the Responding to Alarms section of this manual, otherwise contact Nautel to order a replacement part or to request assistance to find a suitable replacement. Description Column Description column contains the name and descriptive information for each part.
  • Page 36 POWER SUPPLY, 12 V @ 150 W POWER SUPPLY, 18-53 V, 2250 W UR119 UG130 UG132 ** - Denotes the NAPE90 Exciter PWB is considered proprietary by Nautel. Component details are not provided in this manual. PAGE 3.2.4 VERSION 0.1 2020-12-01...
  • Page 37 POWER SUPPLY, 12 V @ 150 W POWER SUPPLY, 23-65 V, 3500 W UR119 UG130 UG136 ** - Denotes the NAPE90 Exciter PWB is considered proprietary by Nautel. Component details are not provided in this manual. VERSION 0.1 2020-12-01 PAGE 3.2.5...
  • Page 38 POWER SUPPLY, 12 V @ 150 W POWER SUPPLY, 23-65 V, 3500 W UR119 UG130 UG136 ** - Denotes the NAPE90 Exciter PWB is considered proprietary by Nautel. Component details are not provided in this manual. PAGE 3.2.6 VERSION 0.1 2020-12-01...
  • Page 39 Page 1 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation 235-5910 SD card mod, Programmed (UB114) A01U63 235-8010 Ancillary kit for VX (150W-2kW) 235-8900 2RU Front Panel Detail Assembly JDP21 Conn, Coax, N, Recept, Panel, 50ohm LA82C Inductor, Air Core, 16 AWG magnet, 17 Turn, 0.27"...
  • Page 40 Page 2 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation CT120 Capacitor, SMT,150pF,+/-1%,250V, NP0,0805 C02, C04, C07 CT121 Capacitor,SMT,180pF,+/-1%,250V, NP0,0805 C05, C09, C15 CT122 Capacitor,SMT, 1000pF, +/-5%, 50V,NP0 C11, C13 CT123 Capacitor, SMT, 0.01uF, +/-10%, 50V,BX...
  • Page 41 Page 3 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation CCJ01 Cap,SMT,Ceramic,1000pF,10%, 50V,X7R,0402 C02, C04, C11, C12, C14, C15, C53, C81, C82, C86 CCJ02 Cap,SMT,Ceramic,0.01uF,10%, 50V,X7R,0402 C19, C22, C47, C65, C83, C84 CCJ03 Cap,SMT,Ceramic,0.1uF,10%, 50V,X7R,0402...
  • Page 42 Page 4 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation RAD38 Resistor, SMT, MF, 12.1K Ohms, 1% 1/4W RAD93 Resistor, SMT, 0.01 ohms, 1%, 1/4W, 1206 RAF24 Resistor SMT MF 68.1 Ohm 1% 1/16W 0402...
  • Page 43 Page 5 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation HAJ66 Terminal, SMT, Test Point, PWB JA121 Conn, PwrBlade, 3ACP+4P+24S, R/A,Solder Recp, 4mm JR78 Terminal Block, 3 Pos, 300V, 13A, 28-14AWG, Spring JT202 Conn, Recept, AC, 250VAC, 20A, PWB Mount JU91 Conn, Header, Shrouded, 0.050"...
  • Page 44 Page 6 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation CCJ07 Cap,SMT,Ceramic,100pF,1%, 50V,C0G,0402 C048, C049, C057, C080, C089, C110, C128 CCJ08 Cap,SMT,Ceramic,2.2uF,10%, 25V,X5R,0402 C011, C035, C043, C060, C097 CCJ10 Cap,SMT,Ceramic,18pF,1%, 50V,C0G,0402 C093, C105, C114, C125...
  • Page 45 Page 7 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation RAF63 Resistor SMT MF 121K Ohm 1% 1/16W 0402 R071 RAF66 Resistor SMT MF 221K Ohm 1% 1/16W 0402 R087, R120 RAF74 Resistor SMT MF 1.00M Ohm 1% 1/16W 0402...
  • Page 46 Page 8 of 8 NARF81 StockCode: Final Assy, VX150/300/600, Description: Component Lvl, StockCode Description Reference Designation SD94 Switch, Push-Button, Green/Red, MOM, SPST-NO, PWB S01, S02 SD95 Switch, Push-Button, Tactile, SPST-NO, PWB UC107 Rotary Encoder, 20PPR, Quadrature, w / MOM Push Bu...
  • Page 47 Page 1 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation 235-5910 SD card mod, Programmed (UB114) A01U63 235-8010 Ancillary kit for VX (150W-2kW) 235-8900 2RU Front Panel Detail Assembly JA44 Conn, Coax, Recept, 7/16 DIN, Panel,50ohm LA82C Inductor, Air Core, 16 AWG magnet, 17 Turn, 0.27"...
  • Page 48 Page 2 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation CT120 Capacitor, SMT,150pF,+/-1%,250V, NP0,0805 C02, C04, C07 CT121 Capacitor,SMT,180pF,+/-1%,250V, NP0,0805 C05, C09, C15 CT122 Capacitor,SMT, 1000pF, +/-5%, 50V,NP0 C11, C13 CT123 Capacitor, SMT, 0.01uF, +/-10%, 50V,BX C10, C14 FA76 Fuse, 125 VAC, VDC, 5A, Very fast acting...
  • Page 49 Page 3 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation CCJ01 Cap,SMT,Ceramic,1000pF,10%, 50V,X7R,0402 C02, C04, C11, C12, C14, C15, C53, C81, C82, C86 CCJ02 Cap,SMT,Ceramic,0.01uF,10%, 50V,X7R,0402 C19, C22, C47, C65, C83, C84 CCJ03 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, C54, C55, C56, C57, C58, C59,...
  • Page 50 Page 4 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation RAD38 Resistor, SMT, MF, 12.1K Ohms, 1% 1/4W RAD93 Resistor, SMT, 0.01 ohms, 1%, 1/4W, 1206 RAF24 Resistor SMT MF 68.1 Ohm 1% 1/16W 0402 RAF27 Resistor SMT MF 121 Ohm 1% 1/16W 0402 R01, R03, R09, R12, R17, R20, R23, R26, R35, R38, R41, R53,...
  • Page 51 Page 5 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation HAJ66 Terminal, SMT, Test Point, PWB JA137 Conn, PwrBlade, 3ACP+4P+24S, RA PCB, CP3500 Mate JR78 Terminal Block, 3 Pos, 300V, 13A, 28-14AWG, Spring JT202 Conn, Recept, AC, 250VAC, 20A, PWB Mount JU91 Conn, Header, Shrouded, 0.050"...
  • Page 52 Page 6 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation CCJ05 Cap,SMT,Ceramic,10uF,10%, 25V,X5R,0805 C033, C040, C054, C059, C070, C071, C072, C079, C090, C132 CCJ07 Cap,SMT,Ceramic,100pF,1%, 50V,C0G,0402 C048, C049, C057, C080, C089, C110, C128 CCJ08 Cap,SMT,Ceramic,2.2uF,10%, 25V,X5R,0402 C011, C035, C043, C060, C097 CCJ10...
  • Page 53 Page 7 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation RAF59 Resistor SMT MF 56.2K Ohm 1% 1/16W 0402 R024, R028, R049, R054, R094 RAF63 Resistor SMT MF 121K Ohm 1% 1/16W 0402 R071 RAF66 Resistor SMT MF 221K Ohm 1% 1/16W 0402 R087, R120...
  • Page 54 Page 8 of 8 NARF79 StockCode: Final Assy, VX1, Description: Component Lvl, StockCode Description Reference Designation RFFS50 Resistor,SMT,MF,10.0Kohms,1%, 1/10W,0603 R02, R04, R07, R08, R09, R10, R11, R13, R15, R17, R19, R22, SD94 Switch, Push-Button, Green/Red, MOM, SPST-NO, PWB S01, S02 SD95 Switch, Push-Button, Tactile, SPST-NO, PWB UC107...
  • Page 55 Page 1 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation 235-5910 SD card mod, Programmed (UB114) A01U63 235-8010 Ancillary kit for VX (150W-2kW) 235-8900 2RU Front Panel Detail Assembly JA44 Conn, Coax, Recept, 7/16 DIN, Panel,50ohm LA82C Inductor, Air Core, 16 AWG magnet, 17 Turn, 0.27"...
  • Page 56 Page 2 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation CT120 Capacitor, SMT,150pF,+/-1%,250V, NP0,0805 C02, C04, C07 CT121 Capacitor,SMT,180pF,+/-1%,250V, NP0,0805 C05, C09, C15 CT122 Capacitor,SMT, 1000pF, +/-5%, 50V,NP0 C11, C13 CT123 Capacitor, SMT, 0.01uF, +/-10%, 50V,BX C10, C14 FA76 Fuse, 125 VAC, VDC, 5A, Very fast acting...
  • Page 57 Page 3 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation CCFS04 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 C01, C02 CS81 Capacitor, SMT, Porcelain,24pF 500V, 2% CS89 Capacitor, SMT, Porcelain,27pF 500V, 2% CT53 Capacitor,SMT,Ceramic,0.001uF, 50V,10% C03, C04 JT188 Conn, Jack, MCX, 50Ohm, Gold, Vert, SMT J01, J02, J03 JU91 Conn, Header, Shrouded, 0.050"...
  • Page 58 Page 4 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation LCFS02 Inductor, SMT, Choke, 2000 ohm s, 80mA, 0805 L08, L15, L16 LS18 Inductor,SMT.2.2uH,600ma,1210 LS34 Inductor, SMT, 28nH, 2%, 4A 3.15mm H x 6.86mm L LS45 Inductor, SMT, Shielded, 33uH, 3.3A RMS L03, L04...
  • Page 59 Page 5 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation UX161 IC, SMT, Micro, 128K, 8K SRAM, 3.3V, TQFP-100 UX191 IC, SMT, RMS RF Power detector , 3.3V, 40MHz-10GHz UX83 IC,SMT,2.5V Reference,0.1%,SOT -23-6 XFPS14 Crystal,SMT,Fund,32.768kHz, 10ppm,12.5pF,50kOhm,-4 NAPI188 Power Supply Interface PWB Assy - 3.5kW...
  • Page 60 Page 6 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation CCFS54 Cap,SMT,Ceramic,1500pF,10%,50V ,X7R,0603 C058, C074, C117, C118 CCJ01 Cap,SMT,Ceramic,1000pF,10%, 50V,X7R,0402 C001, C005, C006, C022, C023, C028, C029, C045 CCJ02 Cap,SMT,Ceramic,0.01uF,10%, 50V,X7R,0402 C036, C044, C061 CCJ03 Cap,SMT,Ceramic,0.1uF,10%, 50V,X7R,0402 C003, C007, C008, C010, C015, C016, C017, C018, C019,...
  • Page 61 Page 7 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation RAF38 Resistor SMT MF 1000 Ohm 1% 1/16W 0402 R007, R008, R009, R014, R015, R016, R031, R032, R044, R045, R046, R060, R061, R062, R109, R110,, R117, R125, R127, R128, R129, R136, R137, R149, R150 RAF50 Resistor SMT MF 10.0K Ohm 1% 1/16W 0402...
  • Page 62 Page 8 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation JA140 Conn, USB, Vertical Mount, Type A, PWB JQ55 Conn, Header, Ribbon Cbl, 20 Pin JQ97 Conn, Header, SATA, Vert, PWB JU96 Conn, Header, Shrouded, 0.050" 20pos, Dual Row, Go LS18 Inductor,SMT.2.2uH,600ma,1210 QM77...
  • Page 63 Page 9 of 9 NARF80 StockCode: Final Assy, VX1.5/2, Description: Component Lvl, StockCode Description Reference Designation UA313 Cable, Coax, SRC 316, MCX(M) RA to MCX(M) Straight W13, W14 UA316 Cable, SATA, 0.5m, Straight F to Straight F, Shiel UA318 Cable Assembly, Flat IDC, 0.050" Tiger Eye,30 cond UG130 Power Supply, LED, 12V@150W, 90-305Vac, PFC, IP67 UG136...

  • Page 65: Reading Electrical Schematics

    Resistor power ratings are not shown when less than 0.5 W Unidentified diodes are part number BAS21HT1 (Nautel Part # QDRS01) 24V Unidentified transient suppressors are part number 0603E SDA-TR1 (Nautel Part # QR70) Graphic and Logic Symbols The graphic symbols used on electrical schematics are in accordance with American National Standard ANSI Y32.2-1975 - Graphic Symbols for Electrical and Electronic Diagrams.

  • Page 66: Unique Symbols

    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.

  • Page 67: Structure Of Schematics

    When a functional block is assigned a reference designation (e.g., A2 ), refer to the family trees in Section 3.2, “Parts Information” on page 3.2.1. Follow the family tree branches to the block that contains the desired reference designation, and associated Nautel nomenclature (e.g., NAPI187 System Interface PWB ). Refer to Table 3.3.1 on page 3.3.5...

  • Page 68: Locating A Part Or Assembly On A Schematic

    3.2.1. Follow the family tree branches to the block that contains the desired reference designation, while noting the Nautel nomenclatures and names of all higher assemblies in the path. Example: A2 NAPI187 System Interface PWB . : The drawings in the Mechanical Drawings section depict the assembly detail of the transmitter...
  • Page 69 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 VX1.5/VX2 Transmitter - Ac and RF Power Stages SD-5...
  • Page 70 VX150 TO VX2 TROUBLESHOOTING MANUAL READING ELECTRICAL SCHEMATICS PAGE 3.3.6 VERSION 0.1 2020-12-01...
  • Page 71 +12V OUT REMOTE I/O AUDIO SPI S021 CS N DIGITAL OUTPUT 5 DIGITAL OUTPUT 6 AUDIO SPI MISO ANALOG OUTPUT 1 235-8100-SCH01.SchDoc ANALOG OUTPUT 2 V: A Figure SD-1: VX150/VX300/VX600 and VX1 Transmitter - Control/Monitor Stage VERSION 0.1 2020-12-01 SD-1...
  • Page 72 UNIT ID VOUT (+) VOUT (+) VOUT (-) VOUT (-) # PWR FAIL WARNING - # MODULE PRESENT - 2 2 35-8100-SCH02.SchDoc V: A Figure SD-2: VX150/VX300/VX600 and VX1 Transmitter - Ac and RF Power Stages VERSION 0.1 2020-12-01 SD-2...
  • Page 73 DIGITAL INPUT 1 +3.3V DIGITAL INPUT 2 VBUS 3 DIGITAL INPUT 3 DISPLAY CLK DIGITAL INPUT 4 DISPLAY MISO DISPLAY REMOTE I/O DIGITAL INPUT 5 USB3_N DISPLAY MOSI MODULE +12V IN USB3_P # DISPLAY CS - USER INTERFACE DIGITAL INPUT 6 # DISPLAY RESET - +12V DISPLAY MOSI...
  • Page 74 FROM SHEET 1 RF DRIVE PART OF IPA BIAS SYSTEM INTERFACE IPA VOLTS SAMPLE PART OF SYSTEM IPA V HEATSINK (+) INTERFACE HEATSINK (-) IPA V INLET AIR (+) SPLITTER IPA V INLET AIR (-) POWER AMP RF OUT RF OUT PWB 1 PA LOW PASS COMBINER...
  • Page 75 VOUTL- 1000 PILOT SAMPLE 10.0K 10.0K SHD R 10.0K 0.001 1000 1000 100pF SHIELD 3 3 9.2K 10.0K 10.0K RIGHT 0.001 V_CLAMP_ADO- V_CLAMP_ADO+ VINR U13B PILOT SAMPLE 3740 3740 470pF 1/16W U6AC 0.001 100pF 10.0K 39.2K PCM3060PW 1/16W 0.001 1/4W 100pF AD8274ARMZ 10.0K...
  • Page 76 7150 4120 R127 R113 1/16W 1/16W 1000 100pF 100pF TP11 R128 U15A C105 R126 1000 1 1 8pF R104 10.0K MPX1+ U14A 10.0K 7150 3570 R116 R111 U16A 220pF MPX1 V_CLAMP_MPX- V_CLAMP_MPX+ U14B AINP-B MPX1- 1/16W 1/16W 25.5 39.2K 4120 39pF 470pF 2100...
  • Page 77 +12V +12V-A TP12 TP15 J7:10 +12V IPA POWER +12V 10.0K 10.0K J7:12 +12V IN +12V-A 0.01 J7:14 1/4W ALL RESISTORS ARE RATED 1/16W UNLESS OTHERWISE SHOWN J7:16 IPA CURRENT TP13 REFLD PWR IPA BIAS SAMPLE U5:1 J7:2 +12V-A AVCC U1:1 IPA BIAS 2210 10.0K...
  • Page 78 FROM SHEET 1 PA BIAS 1000 12.1K 0.01 1/4W RF DRIVE IN RF DRIVE OUT 6.8pF BAT54HT1 1/4W 1/4W 0.028μH 0.001 10.0K 3320 10.0K PART OF T2OUT U2:32 R2IN ATxmega128A1U-AU T2IN U4:17 ADM3202ARN +3.3V UDTS05 +3.3V J11:1 R1IN T1IN R1OUT J11:3 PC SERIAL DEBUG T1OUT...
  • Page 79 2210 J1:29 PAV (+) J1:30 AIN5 2210 J1:13 PROTOCOL PAV 1 (+) 0.002 J1:20 #PS ON- J1:1 UNIT ADDRESS J1:28 PAV (-) PAV (-) J1:31 235-4050-01-SCH01.SchDoc Figure SD-9: NAPI188/01 Power Supply Interface PWB, 2 kW (VX150/VX300/VX600) VERSION 0.1 2020-12-01 SD-9...
  • Page 80 3.3V 10.0K +12V 10.0K J2:10 +12V U U A78M33CDCY +3.3V ALL RESISTORS ARE RATED 1/10W UNLESS OTHERWISE NOTED J2:8 0.47 J2:5 J2:2 J2:6 J2:9 J3:1 LINE J3:3 LINE/N AC TO 12V SUPPLY J3:2 +3.3V J1:25 J1:26 J1:27 J2:1 J1:24 RS485 (+) RS-485 TO SYSTEM TO POWER SUPPLY...
  • Page 81 J1:2 J1:5 J1:6 J1:3 EXCITER J1:1 J1:4 J1:7 J2:1 J3:5 DISPLAY MOSI DISPLAY MOSI J2:3 J3:3 DISPLAY SCK DISPLAY SCK J2:6 J3:4 DISPLAY MISO DISPLAY MISO J2:8 J3:6 DISPLAY CS DISPLAY CS J2:9 J3:8 DISPLAY RESET DISPLAY RESET J2:2 J3:1 +3.3V +3.3V J2:4...
  • Page 82     ,3$ 92/76 6$03/( ,3$ 92/76 6$03/( ,3$ 92/76 6$03/( ,3$ 92/76 6$03/(       & & & & & & & & & & & & ) ) ) )        ...
  • Page 83 PA VOLTS 0.022μH 1000pF 1000pF 1000pF 470pF 470pF 4 4 0A 10.0 Q1:1 47.5K MRFX1K80H 1/4W 1/4W RF OUT 680pF 300V RF DRIVE 470pF 12pF 12pF 300V 0.15μH 0.15μH 22pF 12pF 0.0175μH 100pF 250V 250V 470pF 300V 10.0 Q1:2 MRFX1K80H 235-1050-SCH01.SchDoc 680pF V: A...
  • Page 84 *DENOTES FORMED BY PADS ON THE PWB 5.6pF 5.6pF 1500V 1500V 1.5pF 3.3pF 1.8pF 1500V 1500V 1500V 235-6020-SCH01.SchDoc Figure SD-14: NAPF16 Low Pass Filter PWB VERSION 0.1 2020-12-01 SD-14...
  • Page 85 5) 021,725 5) 021,725 5) 021,725 5) 021,725 - - - - 5 5   % % % % $ $ $ $ 5) ,1 5) ,1 5) 287 5) 287 5) ,1 5) ,1 5) 287 5) 287 ):' 3:5 6$03/( ):' 3:5 6$03/( ):' 3:5 6$03/(...
  • Page 86 J4:1 J4:3 1000 12.1K 0.01 1/10W 1/4W 0.001 0.056μH 27pF 24pF 500V 500V 12.1K 0.001 1/4W J4:2 J4:4 1000 0.01 1/10W J4:5 J4:6 J4:7 J4:8 J4:9 2 2 35-6270-SCH01.SchDoc J4:10 Figure SD-16: NAPH15 2-Way Splitter PWB (VX1.5/VX2) VERSION 0.1 2020-12-01 SD-16...
  • Page 87 3.2.1. Follow the family tree branches to the block that contains the desired reference designation and Nautel nomenclature (e.g., NAPA40 Power Amplifier PWB ). Note the reference designations and Nautel nomenclatures of all higher assemblies in the path. Example: A7 NAPA40 Power Amplifier PWB .
  • Page 88 MD-8 NAPA41 Pre-Amp/IPA PWB MD-9 NAPA40 Power Amplifier PWB MD-10 NAPF16 Low Pass Filter PWB MD-11 NAPP15 Directional Coupler PWB MD-12 NAPH15 2-Way Splitter PWB (VX1.5/VX2) MD-13 2-Way Combiner PWB (Nautel Part # PU03A) (VX1.5/VX2) PAGE 3.4.2 VERSION 0.1 2020-12-01...
  • Page 89 SYSTEM INTERFACE PWB (A3) 12 V POWER SUPPLY MODULE POWER SUPPLY MODULE (U2) (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 0.1 2020-12-01 MD-1...
  • Page 90 NOT AVAILABLE AT TIME OF PRINT Figure MD-2: VX1.5/VX2 Transmitter VERSION 0.1 2020-12-01 MD-2...
  • Page 91 Figure MD-3: NAPI189 Analog Audio PWB VERSION 0.1 2020-12-01 MD-3...
  • Page 92 Figure MD-4: NAPI187 System Interface PWB VERSION 0.1 2020-12-01 MD-4...
  • Page 93 Figure MD-5: NAPI188/01 Power Supply Interface PWB (VX150/VX300/VX600) VERSION 0.1 2020-12-01 MD-5...
  • Page 94 Figure MD-6: NAPI188 Power Supply Interface PWB (VX1/VX1.5/VX2) VERSION 0.1 2020-12-01 MD-6...
  • Page 95 Figure MD-7: NAPI193 Front Panel User Interface PWB VERSION 0.1 2020-12-01 MD-7...
  • Page 96 Figure MD-8: NAPA41 Pre-Amp/IPA PWB VERSION 0.1 2020-12-01 MD-8...
  • Page 97 Figure MD-9: NAPA40 Power Amplifier PWB VERSION 0.1 2020-12-01 MD-9...
  • Page 98 Figure MD-10: NAPF16 Low Pass Filter PWB VERSION 0.1 2020-12-01 MD-10...
  • Page 99 Figure MD-11: NAPP15 Directional Coupler PWB VERSION 0.1 2020-12-01 MD-11...
  • Page 100 Figure MD-12: NAPH15 2-Way Splitter PWB (VX1.5/VX2) VERSION 0.1 2020-12-01 MD-12...
  • Page 101 Figure MD-13: 2-Way Combiner PWB (Nautel Part # PU03A) (VX1.5/VX2) VERSION 0.1 2020-12-01 MD-13...
  • Page 102 Low Voltage Power Supply. A module or modules used in the ac-dc power stage that generates LVPS. the low level dc supply voltage for the transmitter. A setting that controls power level, frequency and audio parameters. The VX150 to VX2 allows Preset. you to pre-program multiple presets.
  • Page 103 VX150 TO VX2 TROUBLESHOOTING MANUAL LIST OF TERMS PAGE 3.5.2 VERSION 0.1 2020-12-01...
  • Page 105 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: support@nautel.com Web: www.nautel.com © Copyright 2020 NAUTEL. All rights reserved.

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