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Nautel XR6 Troubleshooting Manual

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XR6/XR3 Transmitter
Troubleshooting Manual
Document: XR6/XR3-TROUBLESHOOT
Issue:
3.1 2014-05-07
Standard
Status:

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  • Page 1 XR6/XR3 Transmitter Troubleshooting Manual Document: XR6/XR3-TROUBLESHOOT Issue: 3.1 2014-05-07 Standard Status:...
  • Page 3 The comparisons and other information provided in this document have been prepared in good faith based on publicly available information. The reader is encouraged to consult the respective manufacturer's most recent published data for verification. © Copyright 2009 NAUTEL. All rights reserved.

  • Page 5: Table Of Contents

    XR6/XR3 Troubleshooting Manual Table of contents Contents About this manual About safety xiii Safety precautions Responding to alarms Corrective maintenance Electrostatic protection Identifying an alarm Responding to alarms Removing and reinstalling RF power modules 1-20 Troubleshooting RF power modules 1-24...
  • Page 6 XR6/XR3 Troubleshooting Manual Table of contents RF power module (NAP34A) 2-19 RF drive buffer PWB (NAPE77A/01) 2-30 Parts Lists Family tree How to locate information about a specific part Column content OEM code to manufacturer’s cross-reference Common abbreviations/acronyms Wiring/connector lists...
  • Page 7 XR6/XR3 Troubleshooting Manual Table of contents List of terms Index IX-1 Issue 3.0 2009-07-15 Page vii...
  • Page 8 XR6/XR3 Troubleshooting Manual Table of contents Page viii Issue 3.0 2009-07-15...

  • Page 9: About This Manual

    XR6/XR3 Troubleshooting Manual About this manual This manual provides troubleshooting information for the XR6/XR3 transmitter. It is intended for use by field technicians. This manual allows the troubleshooting technician to diagnose a fault to the system level, using alarm response procedures, parts lists, wiring lists, and electrical schematics.
  • Page 10 The Nautel website provides useful resources to keep you up to date on your XR6/XR3. Nautel User Group (NUG) The website includes a special section that customers can log into in order to access the Nautel customer newsletter, product manuals, frequently asked questions (FAQ), information sheets, and information about field upgrades.
  • Page 11 XR6/XR3 Troubleshooting Manual Documentation: online and printed The website’s NUG section provides online access to all the documentation for your XR6/XR3. Documentation is provided in Acrobat (PDF) format. You can use the documentation online or print the sections that you need.
  • Page 12 XR6/XR3 Troubleshooting Manual Page xii Issue 3.0 2009-07-15...

  • Page 13: About Safety

    XR6/XR3 Troubleshooting Manual About safety All Nautel transmitters are designed to meet the requirements of EN60215, Safety Requirements for Radio Transmitters. The philosophy of EN60215 is that the removal of any cover or panel that can only be opened using a tool is a maintenance activity, and that any person performing a maintenance activity is expected to be trained for that activity.
  • Page 14 XR6/XR3 Troubleshooting Manual Lightning hazards Before opening the transmitter and touching internal parts, remove and solidly ground the antenna connection. WARNING: It is not enough to ground the antenna terminal with the antenna still connected. Even a small impedance in the ground strap will result in lethal voltages during a lightning strike.

  • Page 15: Safety Precautions

    Personnel must be familiar with the transmitter, so that they can avoid physical danger, and be aware of hazards to themselves and the equipment. Nautel offers a number of training courses covering the basic fundamentals of RF systems and transmitters, and the operation and maintenance of the transmitter. For more information about available courses and schedules, go to the Nautel website at http://www.nautel.com/Training.aspx,...
  • Page 16 Operation of safety interlocks (if installed) First aid Nautel does not offer first aid training, since the hazards associated with high voltage and RF energy are not specific to the transmitter. However, the customer should provide first aid training to all per- sonnel who have access to the transmitter site.
  • Page 17 XR6/XR3 Troubleshooting Manual Marking hazards Place warning signs close to any hazardous areas or systems (e.g., the feedline or the antenna system). Make the signs large enough that they cannot be missed. Provide signage in all languages used in the region.
  • Page 18 (and to protect the rest of your site equipment and your personnel). For detailed information about lightning protection, see the Nautel Site Preparation Manual, available from your Nautel sales agent, or online from the Nautel website.
  • Page 19 XR6/XR3 Troubleshooting Manual Earthquake protection If the transmitter site is in a region that experiences any noticeable earthquake activity, take steps to prevent the transmitter from shifting or rocking during an earthquake. Even during minor earthquakes, rocking or movement of the transmitter is likely to damage the feedline connection, and could even cause a catastrophic failure of the ac power feed into the transmitter.
  • Page 20 XR6/XR3 Troubleshooting Manual Page xx Issue 3.0 2009-07-15...

  • Page 21: Responding To Alarms

    Responding to alarms - see page 1-8 • Troubleshooting RF power modules - see page 1-24 If none of the procedures and alarms described in this section address your problem, contact Nautel for assistance. See “Technical support” on page ix...
  • Page 22 XR6/XR3 Troubleshooting Manual Responding to alarms Remote troubleshooting Remote on-air troubleshooting consists of monitoring the transmitter's radiated signal using an on-air monitor, and observing the status of each remote fault alarm indicator. Information obtained from these sources should enable an operator to decide whether an alarm response may be deferred to a more convenient time, an immediate corrective action must be taken, or if a standby transmitter must be enabled (if one is available).

  • Page 23: Electrostatic Protection

    XR6/XR3 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 24: Identifying An Alarm

    4. If the troubleshooting and subsequent replacement of a suspect PWB or RF power module does not remove the fault condition, contact Nautel. NOTE: Before undertaking any troubleshooting, record all GUI meter readings. Then press the STATUS button - if present - on the GUI to see if any other alarms have been registered on the STATUS page .
  • Page 25 Alarm High VSWR SD: Output Network This alarm occurs when the reflected power Shutback RI: High VSWR exceeds its factory-set threshold - approximately 480 W (XR3) or 960 W (XR6). See also page 1- Issue 3.0 2009-07-15 Page 1-5...
  • Page 26 1-9. PM Fault B SD: IPA/PA This alarm is triggered when RF power module RI: Power Mod Fail B (optional for XR6/XR3) reports a fault. See page 1-9. RF Drive P/S SD: Low Voltage Power The RF drive power supply is monitored. This...
  • Page 27 XR6/XR3 Troubleshooting Manual Responding to alarms System Diagram LEDs Status Description/Action Remote Interface Message Alarms RF Driver Fail SD: Exciter This fail indicates a problem with the RF drive on RI: Exciter Fail the active exciter. See page 1-16. SoftStart...

  • Page 28: Responding To Alarms

    Reset button on the GUI. See “Navigating from page to page” on page 2-6 the XR6/XR3 Operations and Maintenance Manual. If the Alarm does not reset – or if it returns – remove the RF power module for troubleshooting. See “Removing an RF power module”...
  • Page 29 “PM fault” on page 1-8 to troubleshoot. NOTE: A second RF power module is optional for the XR6/XR3 transmitter. Ext. interlock open An Ext. Interlock Open alarm indicates an external interlock is open. It will be accompanied by a Shutback alarm.
  • Page 30 (B+ = 220 V) or 91 V (B+ = 115 V) for 3-phase XR3; 250 V (B+ = 315 V), 155 V (B+ = 196 V), 91 V (B+ = 115 V) or 55 V (B+ = 69 V) for 1-phase XR6; or 175 V (B+ = 220 V), 155 V (B+ = 196 V), 91 V (B+ = 115 V) or 55 V (B+ = 69 V) for 1-phase XR3.
  • Page 31 (B+ = 115 V) for 3-phase XR3; 265 V (B+ = 315 V), 165 V (B+ = 196 V), 97 V (B+ = 115 V) or 59 V (B+ = 69 V) for 1-phase XR6; or 185 V (B+ = 220 V), 165 V (B+ = 196 V), 97 V (B+ = 115 V) or 59 V (B+ = 69 V) for 1-phase XR3.
  • Page 32 XR6/XR3 Troubleshooting Manual Responding to alarms 3. If the transformer taps are correct, the monitoring circuit is suspect. Contact Nautel for troubleshooting information. Fan P/S fault The 48 V power supply used for the fans is monitored and will report a fault if the voltage is outside the range of 48 V ±...
  • Page 33 XR6/XR3 Troubleshooting Manual Responding to alarms The alarm may be caused by a failure of the power supply, a fault in the detection circuitry on the exciter interface PWB, or a fault in the alarm circuit on the control/display PWB. Troubleshoot a LVPS Fault as follows: 1.
  • Page 34 This fail is triggered when the product of the B+ (dc) voltage and the dc current is greater than the limit set in software. For the XR6 the threshold is 11 kVA. For the XR3 the threshold is 5.5 kVA. This fail causes an immediate cutback (power reduction), but not a shutback.
  • Page 35 XR6/XR3 Troubleshooting Manual Responding to alarms 2. If the transmitter successfully switched to the standby exciter, suspect the main exciter's interphase PDM driver PWB. 3. Use an oscilloscope to measure the voltage at TP6 on the interphase PDM driver PWB. The indication should have a dc offset of 1.4 V ±...
  • Page 36 XR6/XR3 Troubleshooting Manual Responding to alarms RF driver fail This fault indicates a problem with the RF drive on the current exciter. If the exciter transfer function is set to auto then the microcontroller will attempt an exciter changeover to the standby exciter. If it cannot complete an exciter changeover, or if the exciter transfer function is set to manual, then this fault will cause a shutback.
  • Page 37 XR6/XR3 Troubleshooting Manual Responding to alarms A Cutback Level (1-8) status indicates that several shutback alarms (at least three shutbacks in five seconds) have occurred. A cutback alarm may be triggered by a fault in the transmitter, large VSWR, or a fault in the control/display PWB's microprocessor or alarm circuitry. Troubleshoot a cutback alarm as follows: 1.
  • Page 38 Figure 1.3), complete “Modulation Peak Limiting” on page 5-5 of the XR6/XR3 Operating and Maintenance Manual. Figure 1.3: Chopper Control Waveform Audio = 30Hz (AC Coupled) Softstart active The softstart relays are initially open for 1.6 seconds when the transmitter’s power is first turned on.
  • Page 39 XR6/XR3 Troubleshooting Manual Responding to alarms SoftStart OverTemp The software keeps track of the calculated temperature of the softstart relays and triggers this fault if that value is greater than 150°C. While this fault is on, RF power is not available. The temperature is assumed to rise 20°C for each cold start and 10°C for each warm start.

  • Page 40: Removing And Reinstalling Rf Power Modules

    XR6/XR3 Troubleshooting Manual Responding to alarms Removing and reinstalling RF power modules Removing an RF power module Refer to Figure 1.4 on page 1-21, and Figure 1.5 on page 1-23 for this procedure. NOTE: The RF power module will shut down when the RF FAIL or INHIBIT/TEMP alarms are registered on its front panel.
  • Page 41 XR6/XR3 Troubleshooting Manual Responding to alarms Figure 1.4: RF Power Module Mounting Screw Holes Cutout Temp/Inhibit Alarm RF Drive Alarm Block A-D Alarms Mod Short Alarm Inhibit Switch Mounting Screw Connector J1 Issue 3.0 2009-07-15 Page 1-21...
  • Page 42 XR6/XR3 Troubleshooting Manual Responding to alarms Figure 1.5: XR6/XR3 Transmitter - Rear View 2 Packing Bolts (1 per module) Safety Ground Stud Assembly Connection Page 1-22 Issue 3.0 2009-07-15...
  • Page 43 XR6/XR3 Troubleshooting Manual Responding to alarms Installing an RF power module Refer to Figure 1.4 on page 1-21, and Figure 1.5 on page 1-23 for this procedure. 1. Verify that the RF power module has been tuned to the carrier frequency (see “RF drive...

  • Page 44: Troubleshooting Rf Power Modules

    The following test equipment and cables are required to troubleshoot an RF power module. Power Module Test Kit The power module test kit (Nautel part # 202-5015) is required to use the transmitter’s integral test circuits. It is optionally provided by, or available from, Nautel. It contains: •...
  • Page 45 A 5 mm (0.197 in., hex nut driver. The diameter of the outside wall must be less than 7 mm (0.275 in.). • A 2.5 mm (0.098 in.), hex screw driver (Nautel part # HAZ65), included in the ancillary kit. Electrostatic Precautions The RF power module contains semiconductor devices that are susceptible to damage from electrostatic discharge.
  • Page 46 XR6/XR3 Troubleshooting Manual Responding to alarms Preparation for testing 1. Follow the procedure in “Removing an RF power module” on page 1-20 to remove the power module from the transmitter. 2. Place the RF power module on a suitable work surface in close proximity to the transmitter's RF power module test circuit, so that the RF power module test cable can reach the power module.
  • Page 47 XR6/XR3 Troubleshooting Manual Responding to alarms PA volts to ground impedance Measure impedance between the PA volts and ground for each RF power block: 1. Measure resistance between terminal H (PA volts input) of each PA input/output PWB and ground, using a digital multimeter.
  • Page 48 XR6/XR3 Troubleshooting Manual Responding to alarms 7. Restart impedance checks at Step PA volts to B+ impedance Measure impedance between the B+ volts input and the PA volts output for each RF power block: 1. Measure the resistance between terminal H (PA volts) of each PA input/output PWB and its associated B+ fuse.
  • Page 49 Figure 1.4 on page 1-21). 2. Connect P4 of the test cable (Nautel part # 202-5010) to J2 of the RF power module to be tested, noting that J2 is the lower connector on the rear of the power module.
  • Page 50 XR6/XR3 Troubleshooting Manual Responding to alarms NOTE: The RF power module may be connected to the transmitter’s test circuit without turning the transmitter off or interrupting its on-air operation. The host transmitter must be turned on and its RF power stage must be enabled (its RF On LED must be on) for dc voltages to be applied to the RF power module.
  • Page 51 XR6/XR3 Troubleshooting Manual Responding to alarms check” on page 1-35 to attempt tuning of the RF drive. If the RF Drive LED remains on after tuning, suspect the RF drive control PWB. NOTE: If the test circuits B+ supply fails when the temporary jumper is installed in...
  • Page 52 XR6/XR3 Troubleshooting Manual Responding to alarms 4. Install a serviceable modulator assembly in each vacant modulator assembly position. 5. Repeat PA volts checks for RF blocks that required repairs. RF amplifier checks Verify the RF amplifiers in each RF power block are functioning and producing an RF output.
  • Page 53 XR6/XR3 Troubleshooting Manual Responding to alarms 5. Repeat Step 3 Step 4 for the remaining suspect PAs. If any C or G waveform is not satisfactory (rectangular wave, 0 to 24 V, assuming 50% duty cycle), the PA associated with the unsatisfactory waveform is defective and must be replaced (see “RF amplifier assembly...
  • Page 54 XR6/XR3 Troubleshooting Manual Responding to alarms Figure 1.6: RF Power Module – Left Side RF Drive Tuning Assembly Figure 1.7: RF Drive tuning assembly – cover off RF Drive Tuning Screw Locking Hardware (shown loosened) Page 1-34 Issue 3.0 2009-07-15...
  • Page 55 XR6/XR3 Troubleshooting Manual Responding to alarms RF drive tuning check Verify the RF drive tuning circuit is functional and the RF drive's tuned circuits are resonant, or can be tuned to resonance at the host transmitter's carrier frequency (f c).

  • Page 56: Exciter Panel And Pwb Removal / Replacement

    NOTE: The remote interface PWB and interphase PDM driver PWBs that interconnect with the exciter interface PWB must be removed before the exciter interface PWB can be removed. Figure 1.8: XR6/XR3 Exciter Panel Assembly (NAE93 – A2) Panel Mounting Screws...
  • Page 57 XR6/XR3 Troubleshooting Manual Responding to alarms Preparation WARNING: Lethal voltages exist inside the transmitter when the power is turned on. Turn off the power at the source and wait until the green LEDs on the B+ distribution PWB are off before removing any connections or PWBs (see Figure 1.9 on page...
  • Page 58 (R59) is not used and requires no adjustment. 4. Install the new interphase PDM driver PWB by reversing Step 1 Step 5. Perform the “Exciter Gain” adjustment procedure on page 5-5 of the XR6/XR3 Operating and Maintenance Manual. Page 1-38 Issue 3.0 2009-07-15...
  • Page 59 XR6/XR3 Troubleshooting Manual Responding to alarms Exciter interface PWB replacement 1. Remove the remote interface PWB (A2A6), both RF synthesizer PWBs (A2A2 and A2A4), and both interphase PDM driver PWBs (A2A3 and A2A5). It may be helpful to gently pry the connectors loose with a screwdriver.

  • Page 60: Rf Drive Buffer Pwb Replacement

    XR6/XR3 Troubleshooting Manual Responding to alarms RF Drive Buffer PWB replacement WARNING: Lethal voltages exist inside the transmitter when the power is turned on. Turn off the power at the source and wait until the green LEDs on the B+ distribution PWB are off before removing any connections or PWBs (see Figure 1.9 on page...

  • Page 61: Distribution Pwb Replacement

    XR6/XR3 Troubleshooting Manual Responding to alarms 5. Remove the defective PWB from the transmitter. 6. Set the EXCTR A (E1), EXCTR B (E2) and SENSITIVITY (E3) jumpers on the replacement PWB to the same positions as the defective PWB. 7. Reverse...

  • Page 62: Rf Drive Power Supply Assembly Replacement

    XR6/XR3 Troubleshooting Manual Responding to alarms RF Drive Power Supply assembly replacement WARNING: Lethal voltages exist inside the transmitter when the power is turned on. Turn off the power at the source and wait until the green LEDs on the B+ distribution PWB are off before removing any connections or PWBs (see Figure 1.9 on page...

  • Page 63: +24 Volt Power Supply Assembly Replacement

    XR6/XR3 Troubleshooting Manual Responding to alarms 2. Remove the two right-hand blank panels adjacent the RF power module(s). If the optional third RF power module is installed instead of a blank panel, remove it (see“Removing and reinstalling RF power modules” on page 1-20).

  • Page 64: Fan Power Supply Assembly Replacement

    XR6/XR3 Troubleshooting Manual Responding to alarms 5. Remove the assembly from the transmitter. 6. Reverse Step 1 through Step 5 to reinstall the replacement assembly. Fan Power Supply assembly replacement WARNING: Lethal voltages exist inside the transmitter when the power is turned on.

  • Page 65: Rf Power Module Assembly Replacement

    XR6/XR3 Troubleshooting Manual Responding to alarms RF Power Module assembly replacement Each RF power module contains RF amplifier assemblies and modulator assemblies (see Figure 1.11) that can be replaced. Figure 1.11: RF Power Module – Right Side RF Amplifier Assemblies...
  • Page 66 Responding to alarms Modulator assembly replacement 1. Remove the modulator assembly from RF power module. Use the hex screw driver (Nautel part # HAZ65) from the ancillary kit to remove the modulator assembly’s attaching hardware (four M3 hex head screws) at the rear of the RF power module's heat sink.
  • Page 67 1. Remove the RF amplifier assembly from RF power module. Use the hex screw driver (Nautel part # HAZ65) from the ancillary kit to remove the RF amplifier assembly’s attaching hardware (four M3 hex head screws) at the rear of the RF power module's heat sink.
  • Page 68 XR6/XR3 Troubleshooting Manual Responding to alarms Page 1-48 Issue 3.0 2009-07-15...

  • Page 69: Detailed Circuit Descriptions

    RF power module (NAP34A) - see page 2-19 • RF drive buffer PWB (NAPE77A/01) - see page 2-30 XR6/XR3 electrical schematics The descriptions in this section all refer to the XR6/XR3 electrical schematics listed in Table 5.1 on page 5-5 of the XR6/XR3 Troubleshooting Manual.
  • Page 70 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Ac supply voltage The Ac Power input (J4-21) is an unregulated dc voltage that is proportional to the ac source. The input is filtered and compared to the low ac ref fault threshold on operational amplifier U4C. If the Ac Power voltage is below this threshold, the ac low signals switch to 0 V.
  • Page 71 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions B+ sample The B+ Sample input (J4-35) input is a dc voltages which represents the positive dc voltage applied to the RF power modules as their high current voltage source. The input is filtered and buffered by operational amplifier U7C and associated components.

  • Page 72: Rf Synthesizer Pwb (Nape70C)

    XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Cabinet temperature Low voltage temperature sensor U5 provides a dc voltage (between 0 and 5 V) which represents the ambient cabinet temperature. This voltage is buffered by operational amplifier U8A and associated components and applied to ADC U12 for application to the front panel's diagnostic display.
  • Page 73 2-7). E3 should be set to HIGH PDM mode when used in an XR6/XR3 transmitter. The microprocessor determines the value of N and outputs the information at pins 2, 3, 4, 5, 6 and 7. The N divider uses this information as the N dividing factor.
  • Page 74 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Virtual capacitor Complementary transistor pair U13:A and U13:B, capacitors C50 through C53 and associated components form a virtual capacitor, the value of which is determined by current flow through U13:A. Amplitude and phase of the IPM compensation input controls gain of U13:A, thereby controlling current flow in the transistor and ultimately the virtual capacitance of the IPM correction circuit.
  • Page 75 134 kHz (when E3 is set in LOW PDM mode) or between 245 kHz and 276 kHz (when E3 is set in HIGH PDM mode). E3 should be set to HIGH PDM mode when used in an XR6/XR3 transmitter.

  • Page 76: Interphase Pdm Driver Pwb (Napm10B)

    XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions - E1 in INT position (pins 2 and 3 shorted) - E2 in INT position (pins 2 and 3 shorted) - E4 in EXT position (pins 1 and 2 shorted) The applied RF must be precisely the carrier frequency (f ) and its peak-to-peak voltage (sine or square wave) must be between 5.0 V and 12.0 V.
  • Page 77 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions The carrier ref input at J1-2 is a dc voltage directly proportional to the expected RF carrier level squared. When the transmitter is operating at its rated carrier level, the expected carrier ref input at the output of buffer U2A (TP5) is a nominal 4.7 V.
  • Page 78 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Linear integrator The linear integrator circuit converts the f square wave on its input to a triangular waveform at its output. The triangular waveform has negative and positive voltage excursions of equal amplitude and duration.
  • Page 79 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Figure 2.1: Timing Diagram for PDM Differential Amplifier Carrier Reference Level Ramp PDM 1 Inverted Carrier Reference Level Ramp PDM 2 PDM2 generator The PDM2 generator consists of U3C, U11B, Q6, Q7, and their associated components. It operates similar to the PDM1 generator except U3C inverts the compensated carrier ref + audio input and applies it to differential comparator U11B's inverting input.
  • Page 80 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions During normal operation, C58 will charge through R67 towards 15 V when the PDM1 output is 15 V (during its 'on time') and CR3 is reversed biased. It will instantly discharge to ground potential, through CR3, when the PDM1 output switches to 0 V (during its 'off time').

  • Page 81: Remote Interface Pwb (Napi83/01A)

    SINGLE/DIFF jumper E19 allows the control inputs to be configured to operate from a single-ended or differential input. Refer to “Control and monitoring” section of the XR6/XR3 Installation Manual for a detailed description on single-ended versus differential inputs. Issue 3.0 2009-07-15...
  • Page 82 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Remote outputs Remote alarm/status outputs are provided on pins of connectors J2 and J3. A darlington transistor for each alarm/status output provides a negative logic (current-sink-to-ground) output when a logic 'true' (alarm condition or active status) exists. The switching circuit provides an open collector during logic 'false' conditions (non-alarm or non-active status condition) and has no influence on the external monitoring circuit.
  • Page 83 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Modulation level detector The modulation level detector circuit monitors the on/off times of the Forward Power Sample input (J13-3) for excessive on times. It automatically inhibits a portion of any modulating audio's positive going half-cycle that would cause excessive 'on times' and results in the stress current threshold of the transmitter's RF power amplifier stages being exceeded.
  • Page 84 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Audio chopper The audio chopper circuit consists of U33D, Q1, and their associated components. It inhibits some portion of positive audio half-cycles that cause modulation peaks/durations that exceed the RF stress current threshold of the transmitter's RF power amplifiers. It accomplishes this by clamping the...
  • Page 85 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions RF monitor and gain setting A sample of the transmitter’s RF output is applied from the RF output filter to the RF Sample input (J7). The front panel GUI, in conjunction with microcontroller U24 and variable gain amplifier U22, provide a means to change the level at the RF MONITOR output (J8).

  • Page 86: Rf Drive Power Supply Pwb (62 V) (Naps10B)

    XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions RF drive power supply PWB (62 V) (NAPS10B) See electrical schematic Figure SD-31. The RF drive power supply PWB is a boost type switching power supply which provides a regulated dc supply voltage for the transmitter's RF drive amplifiers. A nominal +48V supply is applied to the drain of switching FET Q1 through inductor L2.

  • Page 87: Rf Power Module (Nap34A)

    XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions RF power module (NAP34A) See electrical schematics Figures SD-19 and SD-20. The RF power module is effectively two wideband RF amplifiers for the AM broadcast frequency band (530 - 1710 kHz). The RF power module consists of an RF drive control PWB, an RF drive tuning assembly, a modulator input/output PWB and duplicated assemblies for the two wideband amplifiers.
  • Page 88 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions RF drive b+ current limiter The RF drive B+ current limiter is effectively a voltage controlled variable resistor in the RF drive amplifier's B+ voltage path. The magnitude of the control voltage applied to the base of the reference power transistor is determined by circuitry which monitors the RF drive signal's voltage and current.
  • Page 89 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Latching low rf drive detector Comparator U2D and the peak detector formed by CR8/C7/R6 form the latching low RF drive detector circuit. The RF drive level applied to CR8, which is a sample of the tuned RF drive voltage waveform (from the secondary of T3), is peak detected and applied to U2D's inverting input.
  • Page 90 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions High temp detector Comparator U2B in conjunction with two negative temperature coefficient thermistors mounted on the module's heat sinks, form the high temp detector circuit. The thermistors are connected in parallel and, with R1, form a voltage divider to +15 V. The voltage output of the voltage divider is applied to the inverting input of U2B.
  • Page 91 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Comparator U6A, inverter U7A and their associated components form the low PA volts detector 'A' circuit. The PDM 1 signal applied to J2-2 is applied through R52 to an average detector formed by R58/C48.
  • Page 92 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions U7A's output will switch to a current-sink-to-ground. A ground potential will be applied to the junction of DS3/CR35 through CR34. The 15 V current source will be removed from J3-11. The PA input/output PWB's RF amplifier fault detector circuit will be reset if it was activated. Its fault detection capability will be inhibited as long as the junction of DS3/CR35 is a ground potential (see “RF amplifier failure detector”...
  • Page 93 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions • Be applied to the cathodes of CR26, CR28, CR40 and CR42 as a logic true reset command. The PDM input to all four low PA volts detectors will effectively be clamped to ground for the duration of the reset pulse.
  • Page 94 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Modulator input/output pwb The modulator input/output PWB interfaces the B+ VDC, PDM, and gate bias drive inputs and the PDM (B+) outputs of the four modulator assemblies. The B+ voltage for each modulator is separately fused at 20 A.
  • Page 95 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Modulator filter See electrical schematic Figure SD-20. An inductor, L/C components on the modulator filter and the input capacitance of two RF amplifiers form a low pass filter for the modulator's PDM (B+) output. The filter is connected as a multi-pole, tuned filter that shunts the PDM frequency component of the PDM (B+) input to ground.
  • Page 96 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Normally, the RF drive currents will be balanced, there will be minimal voltage across T1's secondary and the voltage applied to Q1's gate will not be sufficient to forward bias it. Q1 will be turned off and the RF Amp Fail signal will be logic false since 24 V is being applied from a pull-up resistor in the RF drive control PWB's crowbar switch circuit.
  • Page 97 XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions Figure 2.2: Simplified Principles of Class ‘D’ Operation Simple Class 'D' Operation If the switch is opened and closed with a 50% duty cycle, a square wave at the switching frequency results at the filter input.

  • Page 98: Rf Drive Buffer Pwb (Nape77A/01)

    XR6/XR3 Troubleshooting Manual Detailed Circuit Descriptions RF drive buffer PWB (NAPE77A/01) See electrical schematic Figure SD-30. The 0 - 15 V RF carrier frequency signals generated by the RF synthesizer PWBs are applied to the RF Drive A (J1) and B (J2) inputs. The active RF Drive signal, as selected by relay K1, is applied to MOSFET drivers U2A through U5A .

  • Page 99: Parts Lists

    (for 1-phase transmitters) with the full reference designation. • Follow the family tree branches to the block that represents the lowest level assembly assigned a Nautel nomenclature. Then refer to the parts list at the end of this section. Issue 3.0 2009-07-15 Page 3-1...

  • Page 100: Column Content

    Nautel part (e.g., 194-1002-01) • optional kits that are assigned a numbered Nautel part. To obtain the full reference designation for a specific part the Nautel configuration control number must be located in the family tree (see Figure 3.1 on page 3-6 Figure 3.2 on page...

  • Page 101: Oem Code To Manufacturer's Cross-Reference

    The listed number is Nautel's usual or preferred choice. The use of this number does not restrict Nautel from selecting and using commercial equivalents during manufacture, where their use will not degrade circuit operation or reliability.

  • Page 102: Common Abbreviations/Acronyms

    XR6/XR3 Troubleshooting Manual Parts Lists Common abbreviations/acronyms The following abbreviations/acronyms may appear in the Description of Part column: • Denotes item is designed to be installed using Surface Mount Technology. • Denotes item is a Mass Termination Assembly connector. •...
  • Page 103 XR6/XR3 Troubleshooting Manual Parts Lists Table 3.1: OEM Codes / Manufacturers OEM Code Manufacturer OEM Code Manufacturer 1FN41 Atmel Corporation 59124 KOA Speer Electronics Inc. 1JRT7 Epson Electronics American Inc. 5Y407 Phoenix Contact Inc. 1KK13 ITT Industries Incorporated 61529 Airmat Corporation...
  • Page 104 XR6/XR3 Troubleshooting Manual Parts Lists Figure 3.1: Family Tree - XR6/XR3 (3-Phase Ac Power) 3 kW AM BROADCAST TRANSMITTER 6 kW AM BROADCAST TRANSMITTER 3-PHASE AC POWER 3-PHASE AC POWER NARA48B NARA48B (SEE PART NUMBER INDEX FOR ALL SUB-ASSEMBLIES) (SEE PART NUMBER INDEX FOR ALL SUB-ASSEMBLIES)
  • Page 105 XR6/XR3 Troubleshooting Manual Parts Lists Figure 3.2: Family Tree - XR6/XR3 (1-Phase Ac Power) 3 kW AM BROADCAST TRANSMITTER 6 kW AM BROADCAST TRANSMITTER 1-PHASE AC POWER 1-PHASE AC POWER NARA49A NARA49A (SEE PART NUMBER INDEX FOR ALL SUB-ASSEMBLIES) (SEE PART NUMBER INDEX FOR ALL SUB-ASSEMBLIES)
  • Page 106 XR6/XR3 Troubleshooting Manual Parts Lists Figure 3.3: NAP34A RF Power Module Family Tree RF POWER MODULE NAP34A RF DRIVE CONTROL PWB RF TUNING ASSY MODULATOR ASSY NAPC150A NOT USED NAX180C NASM07H MODULATOR ASSY MODULATOR FILTER ASSY MODULATOR FILTER ASSY PA INPUT/OUTPUT PWB...
  • Page 107 Continued from previous page 176-1038-03 Coil Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, Wirewound, 3.9 Ohms, 5%, 5W RT34 PW-5 3.9 5% 75042 Resistor, Wirewound, 3.9 Ohms, 5%, 5W RT34 PW-5 3.9 5% 75042 176-1065-04 PA Input/Output PWB...
  • Page 108 176-1185 Modulator Filter PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Metal, Polyprop,.22uF, 5%, 630V CAP50 2222-378-64224 BC 56699 COMP Capacitor, Metal, Polyprop,.22uF, 5%, 630V CAP50 2222-378-64224 BC 56699 COMP Capacitor,Metal,Polyprop,.27uF,5%,630V CNP45 2222-378-64274 56699 Capacitor,Metal,Polyprop,.012uF,5%,1000V CNP46 2222-378-74123...
  • Page 109 176-6148-34 Power Probe PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Mica, Dipped, 5600pF 2% 500V CAP14 CM07FD562G03 14655 Capacitor, Mica, Dipped, 3300pF 2% 500V CCD18 CM06FD332G03 14655 Not Used NOT USED 37338 Capacitor, Tantalum, Dipped, 10uF, 35V...
  • Page 110 Continued from previous page 176-6148-34 Power Probe PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, MF, 100 Ohms, 1PC 1/4W RAB13 MF1/4DL1000F 59124 Resistor, Film, 100 Ohms, 5%2W RBP07 GS-3, 100 OHMS 75042 Switch, 8-Position, Piano, DIP, 1PST...
  • Page 111 194-1012 Capacitor Bracket Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Metal,Polyprop, 5uF +/-20% 600V CT40 734G505X0600 DEARBO Capacitor, Metal,Polyprop, 5uF +/-20% 600V CT40 734G505X0600 DEARBO Capacitor, Metal,Polyprop, 5uF +/-20% 600V CT40 734G505X0600 DEARBO Capacitor, Metal,Polyprop, 5uF +/-20% 600V...
  • Page 112 202-2004-02 Control Display Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Control Display PWB Assy NAPC147D 195-2050-04 37338 Mod, UDDS01 202-2020 202-2020 37338 202-6045-01 Static Drain Choke PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used...
  • Page 113 202-7005-04 Cableform Assy, P/S XR6 REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE MTA, Standard Dust Cover, 12 pin JU04 1-640551-2 09482 MTA, Keyed Closed End Housing,12pin,22AWG JU26 1-644463-2 00779 Conn, Socket, D-Sub, HDP-20, 25 pin JR38 205207-1 09482 Conn, Lock Screw, D-Sub, Male...
  • Page 114 202-7205-01 Cableform Assy,P/S,XR3/6,1-PH REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE MTA, Standard Dust Cover, 12 pin JU04 1-640551-2 09482 MTA, Keyed Closed End Housing,12pin,22AWG JU26 1-644463-2 00779 Conn, Socket, D-Sub, HDP-20, 25 pin JR38 205207-1 09482 Conn, Lock Screw, D-Sub, Male...
  • Page 115 202-8060-01 Plug Back Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Relay Assy 202-7019-01 202-7019-01 37338 Relay Assy 202-7019-01 202-7019-01 37338 Conn, Socket, 8 pin, 15A, Angle Bkt, Gold JR44 385490268 13150 Conn, Socket, 8 pin, 15A, Angle Bkt, Gold...
  • Page 116 202-8108 Cableform, XR6 REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Conn, Recept, Ribbon Cable, 40 pin JP51 746288-9 00779 Conn, Socket, D-Sub, HDP-20, 25 pin JR38 205207-1 09482 Conn, Lock Screw, D-Sub, Male JT16 205980-1 09482 Conn, Recept, Ribbon Cable, 40 pin...
  • Page 117 NAA51A/00 RF Amplifier Assy, Basic REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE CR01 Diode, Power Rectifier, 4A, Ultra Fast QM22 MUR460 04713 CR02 Diode, Power Rectifier, 4A, Ultra Fast QM22 MUR460 04713 CR03 Diode, Power Rectifier, 4A, Ultra Fast...
  • Page 118 NAFP103/05 Forward/Reflected Power Probe,XR12/XR6/XR3 REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Power Probe PWB Assy 176-6148-34 176-6148-34 37338 Capacitor, Ceramic, 50pF +10%15000V CCG42 T500K99COGW8570 56699 Conn, Coax, BNC, Recept, 50ohm JDP26 UG1094/U 02660 Conn, Coax, BNC, Recept, 50ohm JDP26...
  • Page 119 NAP34A RF Power Module Assy,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE RF Drive Control PWB Assy NAPC150A 202-1150-02 37338 Not Used NOT USED 37338 RF Tuning Assy (Manual) NAX180C 184-1150-03 37338 Modulator Assy NASM07H 176-1020-08 37338 Modulator Assy...
  • Page 120 Continued from previous page NAP34A RF Power Module Assy,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, Film, 330K Ohms, 2PC 1/2W RAP19 RL20S334G 35005 Resistor, Film, 330K Ohms, 2PC 1/2W RAP19 RL20S334G 35005 Resistor, Film, 330K Ohms, 2PC 1/2W...
  • Page 121 NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE BT01 Battery, Lithium, 3V,20mm Coin Cell BBLT01 CR2032 PANAS C001 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C002 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C003 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C004 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04...
  • Page 122 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C039 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C040 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C041 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C042 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C043 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07...
  • Page 123 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C078 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C079 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C080 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C081 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C082 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04...
  • Page 124 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C117 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C118 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C119 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C120 Cap,SMT,Tantalum,10uF,10%,35V,2917 CTFS03 T494D106K035AS 31433 C121 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04...
  • Page 125 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C156 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C157 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C158 Cap,SMT,Tantalum,10uF,10%,35V,2917 CTFS03 T494D106K035AS 31433 C159 Cap,SMT,Ceramic,0.01uF,10%,50V,X7R,0603 CCFS04 C0603C103K5RAC 31433 C160 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07...
  • Page 126 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Conn, Header,Square Post,Gold,Dual,40-pin JF47 4-102973-0 09482 MTA, Keyed Square Post HeaderAssy, 4 pin JU25 647123-4 00779 Inductor, SMT, Choke, 600ohms,2A, 0805 LCFS01 ILHB0805RK601V...
  • Page 127 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R015 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26 RK73H1JLTD1000F 59124 R016 Resistor,SMT,MF,4750ohms,1%,1/10W,0603 RFFS46 RK73H1JLTD4751F 59124 R017 Resistor,SMT,MF,475Kohms,1%,1/10W,0603 RFFS70 RK73H1JLTD4753F 59124 R018 Resistor,SMT,MF,475Kohms,1%,1/10W,0603 RFFS70 RK73H1JLTD4753F 59124 R019 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50...
  • Page 128 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R054 Resistor,SMT,MF,475Kohms,1%,1/10W,0603 RFFS70 RK73H1JLTD4753F 59124 R055 Resistor,SMT,MF,475Kohms,1%,1/10W,0603 RFFS70 RK73H1JLTD4753F 59124 R056 Resistor,SMT,MF,475Kohms,1%,1/10W,0603 RFFS70 RK73H1JLTD4753F 59124 R057 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R058 Resistor,SMT,MF,1000ohms,1%,1/10W,0603 RFFS38...
  • Page 129 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R093 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R094 Resistor,SMT,MF,1000ohms,1%,1/10W,0603 RFFS38 RK73H1JLTD1001F 59124 R095 Resistor,SMT,MF,68.1Kohms,1%,1/10W,0603 RFFS60 RK73H1JLTD6812F 59124 R096 Resistor,SMT,MF,1000ohms,1%,1/10W,0603 RFFS38 RK73H1JLTD1001F 59124 R097 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50...
  • Page 130 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R132 Resistor,SMT,MF,22.1Kohms,1%,1/10W,0603 RFFS54 RK73H1JLTD2212F 59124 R133 Resistor,SMT,MF,1820ohms,1%,1/10W,0603 RFFS41 RK73H1JLTD1821F 59124 R134 Resistor,SMT,MF,12.1Kohms,1%,1/10W,0603 RFFS51 RK73H1JLTD1212F 59124 R135 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R136 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50...
  • Page 131 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R171 Resistor,SMT,MF,2210ohms,1%,1/10W,0603 RFFS42 RK73H1JLTD2211F 59124 R172 Resistor,SMT,MF,4750ohms,1%,1/10W,0603 RFFS46 RK73H1JLTD4751F 59124 R173 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26 RK73H1JLTD1000F 59124 R174 Resistor,SMT,MF,4750ohms,1%,1/10W,0603 RFFS46 RK73H1JLTD4751F 59124 R175 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26...
  • Page 132 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R210 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26 RK73H1JLTD1000F 59124 R211 Resistor,SMT,MF,4750ohms,1%,1/10W,0603 RFFS46 RK73H1JLTD4751F 59124 R212 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26 RK73H1JLTD1000F 59124 R213 Resistor,SMT,MF,4750ohms,1%,1/10W,0603 RFFS46 RK73H1JLTD4751F 59124 R214 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26...
  • Page 133 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R249 Resistor,SMT,MF,1000ohms,1%,1/10W,0603 RFFS38 RK73H1JLTD1001F 59124 R250 Resistor,SMT,MF,100ohms,1%,1/10W,0603 RFFS26 RK73H1JLTD1000F 59124 R251 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R252 Resistor,SMT,MF,3920ohms,1%,1/10W,0603 RFFS45 RK73H1JLTD3921F 59124 R253 Resistor,SMT,MF,100Kohms,1%,1/10W,0603 RFFS62...
  • Page 134 Continued from previous page NAPC147D Control Display PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE IC,SMT,2.5V Reference,0.1%,SOT-23-6 UX83 LT1790BIS6- 64155 2.5(STATIC) IC,SMT,Opamp,Quad,Single Supply,SOIC-14 ULAS01 MC33074AD(STATIC) 04713 IC,SMT,Opamp,Quad,Single Supply,SOIC-14 ULAS01 MC33074AD(STATIC) 04713 IC,SMT,CMOS,Octal Flip Flop,SOIC-20 UDLS01 SN74AHC574DW(STA 01295 TIC) IC,SMT,Trans Array, 7 Darl.,SOIC-16...
  • Page 135 NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Capacitor, Ceramic, 0.47uF 10% 50V CCG09 CKR06BX474KRV 56289 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Tantalum, Dipped, 10uF, 35V CCP36...
  • Page 136 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338 Capacitor, Tantalum, Dipped, 10uF, 35V...
  • Page 137 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE CR18 Diode, Zener Transient Supressor, 20V QI29 P6KE20CA 07263 CR19 Not Used NOT USED 37338 CR20 Not Used NOT USED 37338 CR21...
  • Page 138 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE CR57 Diode, General Purpose, 200V,0.1A QAP29 1N4938 07263 CR58 Diode, General Purpose, 200V,0.1A QAP29 1N4938 07263 CR59 Diode, General Purpose, 200V,0.1A QAP29...
  • Page 139 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Transistor, FET, N Channel, 100V, 8A QR13 IRF520(STATIC) 81483 Transistor, FET, N Channel, 100V, 8A QR13 IRF520(STATIC) 81483 Transistor, PNP, Switch/Amplifier QA14...
  • Page 140 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R049 Resistor, MF, 2.21K Ohms, 1PC1/4W RAB29 MF1/4DL2211F 59124 R050 Resistor, Film, 150K Ohms, 2PC 1/2W RD21 RL20S154G 35005 R051 Resistor, Film, 150K Ohms, 2PC 1/2W...
  • Page 141 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R088 Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124 R089 Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124 R090 Resistor, MF, 2.21K Ohms, 1PC1/4W...
  • Page 142 Continued from previous page NAPC150A RF Drive Control PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE IC, Comparator, Quad UL02 MC3302L(STATIC) 04713 Not Used NOT USED 37338 XE01 Not Used NOT USED 37338 XF01 Fuseholder, PWB Mount, Type 3AG...
  • Page 143 NAPE70C RF Synthesizer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Tantalum, 2.2uF 10PC 20V CCP16 CSR13E225KM 56289 Capacitor, Ceramic, 0.01uF 10% 100V...
  • Page 144 Continued from previous page NAPE70C RF Synthesizer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Tantalum, Dipped, 10uF, 35V CCP36 T351G106K035AT(Ro 96095 HS) KEMET Capacitor, Tantalum, Dipped, 10uF, 35V CCP36 T351G106K035AT(Ro 96095 HS) KEMET Capacitor, Ceramic, 0.1uF 10%100V...
  • Page 145 Continued from previous page NAPE70C RF Synthesizer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Inductor, Moulded, Shielded, 1.8uH LAP28 IMS-5-1.8UH+/-10% 35005 Inductor, Choke, 2.5 Turns, JMtl LA16 82-152-J 33062 Inductor, Choke, 2.5 Turns, JMtl LA16 82-152-J 33062 Inductor, Choke, 2.5 Turns, JMtl...
  • Page 146 Continued from previous page NAPE70C RF Synthesizer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Resistor, MF, 1.50K Ohms, 1PC1/4W RAB27 MF1/4DL1501F 59124 Resistor, MF, 100 Ohms, 1PC 1/4W RAB13 MF1/4DL1000F 59124 Resistor, MF, 10.0K Ohms, 1PC1/4W...
  • Page 147 Continued from previous page NAPE70C RF Synthesizer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE IC, CMOS, 48-bit DDS UT58 AD9852ASQ(STATIC) 45496 IC, CMOS, Synchronous Counter UT56 74ACT163PC(STATIC) 07263 IC, CMOS, Synchronous Counter UT56 74ACT163PC(STATIC) 07263 IC, CMOS, Hex Inverter...
  • Page 148 NAPE77A/01 RF Driver Buffer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 0.022uF 10% 100V CCG05 CKR06BX223KRV 56289 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Not Used NOT USED 37338 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.1uF 10%100V...
  • Page 149 Continued from previous page NAPE77A/01 RF Driver Buffer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE CR01 Diode, Schottky QR15 MBD301(STATIC) 04713 CR02 Diode, General Purpose, 200V,0.1A QAP29 1N4938 07263 Conn, Post Shunt, 2 Pos, .10 Centreline JQ15...
  • Page 150 Continued from previous page NAPE77A/01 RF Driver Buffer PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, Film, 10 Ohms, 5%, 2W RBP01 GS-3, 10 OHMS 75042 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used...
  • Page 151 NAPI47B Modulator Input Output PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 1.0uF 10%50V CCG10 CKR06BX105KRV 56289 Capacitor, Ceramic, 0.022uF 10% 100V CCG05 CKR06BX223KRV 56289 Capacitor, Ceramic, 0.022uF 10% 100V CCG05 CKR06BX223KRV 56289 Capacitor, Ceramic, 0.022uF 10% 100V...
  • Page 152 Continued from previous page NAPI47B Modulator Input Output PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Conn, Plug, D-Sub, 9 pin, PWBMt JQ33 K22-E9P-NJ 31781 Transistor, NPN, TO-220, 100V QS19 TIP31C 04713 Transistor, PNP, TO-220, 100V QS18 TIP32C...
  • Page 153 NAPI82A Exciter Interface PWB,XRSeries REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.01uF 10% 100V CCG04 CKR05BX103KRV...
  • Page 154 Continued from previous page NAPI82A Exciter Interface PWB,XRSeries REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Conn, Socket, D-Sub, 25 pin, PWB Mt JS13 K22-B25S-NJ 22421 Conn, Header, Ribbon Cbl, 40 pin JP52 499910-9 00779 Conn, Header, Ribbon Cbl, 40 pin...
  • Page 155 Continued from previous page NAPI82A Exciter Interface PWB,XRSeries REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, MF, 4.75K Ohms, 1PC1/4W RAB33 MF1/4DL4751F 59124 Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124 Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124...
  • Page 156 NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C001 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C002 Cap,SMT,Tantalum,10uF,10%,16V,1411 CTFS01 T494B106K016AS 31433 C003 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C004 Cap,SMT,Tantalum,10uF,10%,35V,2917 CTFS03 T494D106K035AS 31433 C005 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C006 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805...
  • Page 157 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C040 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C041 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C042 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C043 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C044 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07...
  • Page 158 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C079 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C080 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C081 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C082 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C083 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07...
  • Page 159 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE C119 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C120 Not Used NOT USED 37338 C121 Cap,SMT,Tantalum,10uF,10%,35V,2917 CTFS03 T494D106K035AS 31433 C123 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805 CCFS07 C0805C104K5RAC 31433 C124 Cap,SMT,Ceramic,0.1uF,10%,50V,X7R,0805...
  • Page 160 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE CR12 Diode,SMT,Switching,250V,0.2A,SOD-323 QDRS01 BAS21HT1(STATIC) 04713 CR13 Diode,SMT,Switching,250V,0.2A,SOD-323 QDRS01 BAS21HT1(STATIC) 04713 CR14 Diode,SMT,Switching,250V,0.2A,SOD-323 QDRS01 BAS21HT1(STATIC) 04713 CR15 Diode,SMT,Switching,250V,0.2A,SOD-323 QDRS01 BAS21HT1(STATIC) 04713 CR16 Diode,SMT,Switching,250V,0.2A,SOD-323 QDRS01...
  • Page 161 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED...
  • Page 162 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Transistor,SMT,NPN,Switch/Amp,SOT-23 QBNS01 MMBT4401LT1(STATI 04713 Transistor,SMT,NPN,Switch/Amp,SOT-23 QBNS01 MMBT4401LT1(STATI 04713 Transistor,SMT,MOSFET,N-Channel,60V,115mA,SOT- QN53 2N7002LT1G(STATIC) 1MQ07 (ROHS) Not Used NOT USED 37338 Transistor,SMT,NPN,Switch/Amp,SOT-23 QBNS01 MMBT4401LT1(STATI 04713 R001...
  • Page 163 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R033 Resistor, SMT, MF, 4750 Ohms,1%, 1/4W RAD33 RK73H2BL4751F 59124 R034 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R035 Resistor, SMT, MF, 4750 Ohms,1%, 1/4W RAD33...
  • Page 164 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R072 Resistor,SMT,MF,10.0ohms,1%,1/10W,0603 RFFS14 RK73H1JLTD10R0F 59124 R073 Resistor,SMT,MF,10.0ohms,1%,1/10W,0603 RFFS14 RK73H1JLTD10R0F 59124 R074 Resistor,SMT,MF,10.0ohms,1%,1/10W,0603 RFFS14 RK73H1JLTD10R0F 59124 R075 Resistor,SMT,MF,10.0ohms,1%,1/10W,0603 RFFS14 RK73H1JLTD10R0F 59124 R076 Resistor,SMT,MF,10.0ohms,1%,1/10W,0603 RFFS14...
  • Page 165 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R111 Resistor,SMT,MF,332ohms,1%,1/10W,0603 RFFS32 RK73H1JLTD3320F 59124 R112 Resistor,SMT,MF,475Kohms,1%,1/10W,0603 RFFS70 RK73H1JLTD4753F 59124 R113 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R114 Resistor, SMT, MF, 332 Ohms,1% 1/4W RAD19...
  • Page 166 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R153 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R154 Resistor,SMT,MF,1210ohms,1%,1/10W,0603 RFFS39 RK73H1JLTD1211F 59124 R155 Resistor,SMT,MF,10.0Kohms,1%,1/10W,0603 RFFS50 RK73H1JLTD1002F 59124 R156 Not Used NOT USED 37338 R158 Not Used...
  • Page 167 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R199 Resistor,SMT,MF,0.0ohms,Jumper,0603 RFFS01 RK73Z1JLTD 59124 R200 Resistor,SMT,MF,0.0ohms,Jumper,0603 RFFS01 RK73Z1JLTD 59124 R201 Resistor,SMT,MF,0.0ohms,Jumper,0603 RFFS01 RK73Z1JLTD 59124 R202 Resistor,SMT,MF,0.0ohms,Jumper,0603 RFFS01 RK73Z1JLTD 59124 R203 Resistor,SMT,MF,0.0ohms,Jumper,0603 RFFS01...
  • Page 168 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE IC,SMT,Trans Array, 7 Darl.,SOIC-16 UDAS01 MC1413BD(STATIC) 04713 IC,SMT,Trans Array, 7 Darl.,SOIC-16 UDAS01 MC1413BD(STATIC) 04713 IC,SMT,Trans Array, 7 Darl.,SOIC-16 UDAS01 MC1413BD(STATIC) 04713 IC,SMT,Trans Array, 7 Darl.,SOIC-16...
  • Page 169 Continued from previous page NAPI83/01A Remote Interface PWB,XR Series REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE XE12 Not Used NOT USED 37338 XE13 Not Used NOT USED 37338 XE14 Not Used NOT USED 37338 XE15 Not Used NOT USED...
  • Page 170 NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.01uF 10% 100V CCG04 CKR05BX103KRV 56289 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338 Capacitor, Ceramic, 0.1uF 10%100V...
  • Page 171 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338 Capacitor, Ceramic, 0.1uF 10%100V...
  • Page 172 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE CR03 Not Used NOT USED 37338 CR04 Not Used NOT USED 37338 CR05 Diode, General Purpose, 200V,0.1A QAP29 1N4938 07263 CR06 Not Used NOT USED...
  • Page 173 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Not Used NOT USED 37338 Conn, Header, Ribbon Cbl, 40 pin JP52 499910-9 00779 Conn, Plug, D-Sub, 25 pin, PWB Mt...
  • Page 174 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Transistor, PNP, Switch/Amplifier QA44 2N4403 04713 Transistor, FET, N Channel, 100V, 8A QR13 IRF520(STATIC) 81483 Transistor, FET, N Channel, 100V, 8A QR13 IRF520(STATIC) 81483...
  • Page 175 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R011 Resistor, Film, 10 Ohms, 2%1/2W RAP01 RL20S100G 35005 R012 Resistor, Film, 10 Ohms, 2%1/2W RAP01 RL20S100G 35005 R013 Not Used NOT USED 37338...
  • Page 176 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R050 Resistor, MF, 18.2K Ohms, 1PC1/4W RAB40 MF1/4DL1822F 59124 R051 Resistor, MF, 221 Ohms, 1PC 1/4W RAB17 MF1/4DL2210F 59124 R052 Not Used NOT USED...
  • Page 177 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE R089 Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124 R090 Resistor, MF, 332K Ohms, 1%1/4W RAC07 MF1/4DL3323F 59124 R091 Not Used NOT USED 37338...
  • Page 178 Continued from previous page NAPI90/02 Distribution PWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE RT19 Not Used NOT USED 37338 RT20 Not Used NOT USED 37338 RT21 Not Used NOT USED 37338 RT22 Not Used NOT USED 37338...
  • Page 179 NAPM10B Interphase PDM Driver REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Tantalum, Dipped, 10uF, 35V CCP36 T351G106K035AT(Ro 96095 HS) KEMET Capacitor, Tantalum, Dipped, 10uF, 35V CCP36 T351G106K035AT(Ro 96095 HS) KEMET Capacitor, Tantalum, Dipped, 10uF, 35V CCP36 T351G106K035AT(Ro 96095...
  • Page 180 Continued from previous page NAPM10B Interphase PDM Driver REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Ceramic, 0.001uF 10% 200V CCG01 CKR05BX102KRV 91929 SPRAGUE Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Tantalum, Dipped, 10uF, 35V...
  • Page 181 Continued from previous page NAPM10B Interphase PDM Driver REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Conn, Post Shunt, 2 Pos, .10 Centreline JQ15 390088-2 09482 Conn, Plug, D-Sub, 25 pin, PWB Mt JS12 K22-B25P-NJ 63590 Relay, 5V Coil, 2PDT, 1A...
  • Page 182 Continued from previous page NAPM10B Interphase PDM Driver REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, MF, 2.21M Ohms, 1%1/4W RAC17 MF1/4DL2214F 59124 Resistor, MF, 2.21M Ohms, 1%1/4W RAC17 MF1/4DL2214F 59124 Resistor, Variable, Film, 5000 Ohms, 1/2W RV10 3339P-1-502...
  • Page 183 Resistor, Film, 47 Ohms, 2PC 1/2W RC21 RL20S470G 35005 Resistor, Film, 56 Ohms, 2PC 1/2W RAP04 RL20S560G 35005 Resistor, Film, 39 Ohms, 2PC 1/2W RC20 RL20S390G 35005 Rf Current Transformer Assy 183-6052-02 183-6052-02 NAUTEL 37338 Page 77 of 88 NAPP02/02...
  • Page 184 NAPS10C Regulated Power Supply PWB AssAssy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 1.0uF 100V CAP16 RPE114Z5U105M100V 91929 Capacitor, Tantalum, Dipped, 10uF, 35V CCP36 T351G106K035AT(Ro 96095 HS) KEMET Capacitor, Ceramic, 0.47uF 10% 50V CCG09 CKR06BX474KRV 56289 Capacitor, Ceramic, 0.0047uF10% 100V...
  • Page 185 NAPS36A SCR Control/B+ DistributionPWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 0.01uF 10% 100V CCG04 CKR05BX103KRV 56289 Capacitor, Tantalum, Epoxy, 1uF 10% 35V CCF06 T351A105K035AT(Ro 56289 HS) KEMET Capacitor, Ceramic, 1.0uF 100V CAP16 RPE114Z5U105M100V 91929 Not Used...
  • Page 186 Continued from previous page NAPS36A SCR Control/B+ DistributionPWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Fuse, 40A, 600V FC42 A4J40 21574 MTA, Keyed Square Post HeaderAssy,12 Pin JU23 1-647123-2 00779 Terminal Block,2-pos,PWB Mount JR51 1803277(ROHS) PHOENIX Inductor, Choke, 2.5 Turns, JMtl...
  • Page 187 Continued from previous page NAPS36A SCR Control/B+ DistributionPWB Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124 Resistor, MF, 4.75K Ohms, 1PC1/4W RAB33 MF1/4DL4751F 59124 Resistor, MF, 10.0K Ohms, 1PC1/4W RAB37 MF1/4DL1002F 59124 Resistor, MF, 10.0K Ohms, 1PC1/4W...
  • Page 188 NAPX31/05 B+ Distribution PWB Assy, XR6 REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Not Used NOT USED 37338 Not Used NOT USED 37338 Capacitor, Elect, 2200uF 50V CD12 UVX1H222MRA 55680 CR01 Diode, Zener, 56V, 1W, 5% QM23 1N4758A 04713...
  • Page 189 Continued from previous page NAPX31/05 B+ Distribution PWB Assy, XR6 REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Resistor, Ceramic Comp, 22ohm,5.5W,2800J RF46 AZ220K 44655 Not Used NOT USED 37338 Not Used NOT USED 37338 Not Used NOT USED 37338...
  • Page 190 Fan Tray Assy 202-7020 202-7020 37338 Distribution PWB Assy NAPI90/02 202-8065-02 37338 Regulated Power Supply PWB AssAssy NAPS10C 183-3027-03 37338 B+ Distribution PWB Assy, XR6 NAPX31/05 202-7050-05 37338 Rectifier Assy 202-7017 202-7017 37338 RF Driver Buffer PWB Assy NAPE77A/01 202-4050-03 37338 Capacitor,Elect.,10,000uf,450Vdc...
  • Page 191 NAC115A 202-2100-01 37338 Exciter Panel Assembly NAE93B 202-3100-02 37338 RF Current Probe PWB Assy(1371 - 1710 kHz) NAPP02/02 183-6050-04 37338 Forward/Reflected Power Probe,XR12/XR6/XR3 NAFP103/05 184-6325-09 37338 Static Drain Choke PWB Assy 202-6045-01 202-6045-01 37338 Surge Arrestor Assy, 4000V NAX211/07 194-6090-08...
  • Page 192 Continued from previous page NARA49A Final Assy, XR3/6,1-PH REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Pwr Sply,24V@150W,In 95-264Vacor 120-360Vdc UG40 MIW150-24PT-P7190 3AC42 Pwr Sply,24V@150W,In 95-264Vacor 120-360Vdc UG40 MIW150-24PT-P7190 3AC42 Power Supply,Univ Input,+/-15V,5V,100W UG32 MIW103-PT-P4699 3AC42 XF01 Fuseblock, 2-Pole, 30A, 600V...
  • Page 193 NASM07H Modulator Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Capacitor, Ceramic, 1.0uF 10%50V CCG10 CKR06BX105KRV 56289 Capacitor, Tantalum, 6.8uF 10PC 35V CCP19 CSR13F685KM 56289 Capacitor, Ceramic, 0.1uF 10%100V CCG07 CKR06BX104KRV 56289 Capacitor, Tantalum, 6.8uF 10PC 35V CCP19 CSR13F685KM 56289 Capacitor, Ceramic, 0.1uF 10%100V...
  • Page 194 Continued from previous page NASM07H Modulator Assy REFDES DESCRIPTION NAUTEL # VENDOR # OEM CODE Diode, Pair, UltraFast Power Rectifier UN40 HFA30PA60C(STATIC) 81483 XU02 Socket, IC, 14-pin UC02 2-641261-1 00779 NAX211/07 Surge Arrestor Assy, 4000V REFDES DESCRIPTION NAUTEL # VENDOR #...

  • Page 195: Wiring/Connector Lists

    XR6/XR3 Troubleshooting Manual Wiring/connector lists Section 4: Wiring/connector lists This section contains the wiring information for the hard-wired assemblies of the transmitter, and applicable connector mating information. Wiring lists provided Wiring lists are provided in tabular format. Table 4.1 on page 4-2 lists the tables containing wiring information.
  • Page 196 4-11) Table 4.9 NAP34A RF Power Module (page 4-16) Table 4.11 Fan Tray Assembly (Nautel Part # 202-7020, page 4-17) Table 4.3: Wiring List - XR6/XR3 Transmitter - 3-phase ac power Source Destination Wire # Colour Size Remarks P2-02 P17-Centre...
  • Page 197 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.3: Wiring List - XR6/XR3 Transmitter - 3-phase ac power Source Destination Wire # Colour Size Remarks P9-02 P21-02 Shield Shielded P9-03 P21-03 White 1 conductor P9-04 P21-04 Shield Shielded P9-05 P21-05 White 1 conductor...
  • Page 198 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.3: Wiring List - XR6/XR3 Transmitter - 3-phase ac power Source Destination Wire # Colour Size Remarks Yellow Twisted wires Yellow Twisted wires Yellow Twisted wires Yellow Twisted wires L1-TAP 37 L1-TAP # Yellow...
  • Page 199 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.3: Wiring List - XR6/XR3 Transmitter - 3-phase ac power Source Destination Wire # Colour Size Remarks A9K1-B U3-(DC OUT+) White J2-02 U3-(DC OUT+) White U2-(DC OUT-) U3-(DC OUT+) White U2-(DC OUT-) J4-02 White...
  • Page 200 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.3: Wiring List - XR6/XR3 Transmitter - 3-phase ac power Source Destination Wire # Colour Size Remarks J3-03 E3-A Yellow J3-05 E4-A Yellow J3-07 E4-A Yellow E1-B A8K1-11 Yellow E2-B A8K1-13 Yellow E3-B A9K1-11...
  • Page 201 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.3: Wiring List - XR6/XR3 Transmitter - 3-phase ac power Source Destination Wire # Colour Size Remarks C8-(+) E7-04 White E7-04 E8-04 White A8C1-(-) GND near A8C1 A9C1-(-) GND near A9C1 Table 4.4: Wiring List - XR6/XR3 Transmitter - 1-phase ac power...
  • Page 202 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.4: Wiring List - XR6/XR3 Transmitter - 1-phase ac power Source Destination Wire # Colour Size Remarks P11-Core P22-Core Centre RG188 Coaxial Cable P11-Body P22-Body Shield P12-Core P23-Core Centre RG188 Coaxial Cable P12-Body P23-Body...
  • Page 203 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.4: Wiring List - XR6/XR3 Transmitter - 1-phase ac power Source Destination Wire # Colour Size Remarks P27-04 U4-(+15V) White P28-06 A14A14P1-01 White 1-conductor P28-05 A14A14P1-02 Shield Shielded P28-10 U4-(COM) Black P28-12 U4-(+15V) White...
  • Page 204 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.4: Wiring List - XR6/XR3 Transmitter - 1-phase ac power Source Destination Wire # Colour Size Remarks A14-E1 GND 1 Black A14-U3-01 TB1-02 Black A14-U3-02 T1-LINE 1 Black TB1-01 T1-LINE 2 Black XF1-01 TB1-01...
  • Page 205 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.4: Wiring List - XR6/XR3 Transmitter - 1-phase ac power Source Destination Wire # Colour Size Remarks J1-08 Yellow J3-02 Yellow J3-04 Yellow J3-06 Yellow J3-08 Yellow J2-01 E7-03 Yellow J2-03 E7-03 Yellow J2-05...
  • Page 206 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.5: XR6/XR3 Transmitter - Connector Mating Information Connector Mate A2A1J7 A2A1J8 A15J3 A2A1J10 A2A1J11 A5J1 A2A6J7 A2A6J13 A3J1 A4J1 A4J2 A6A1J1 A11J9 A11J10 A15J1 A15J2 A11J12 A11J13 U1J1 (3-ph) or Not Used (1-ph) A12J1...
  • Page 207 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.6: Wiring List - Interface Between RF Power Module and Distribution PWB Source Destination Wire # Colour Size Remarks P3-13 P1-13 White P3-14 P1-14 White P3-15 P1-15 White P3-16 P1-16 White P3-17 P1-17 Black...
  • Page 208 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.8: Wiring List - NAP34A RF Power Module Source Destination Wire # Colour Size Remarks P2-08 A9-A White 1 Conductor P2-24 A9-B Shield Shielded P2-02 A19-A White 1 Conductor P2-15 A19-B Shield Shielded P2-11...
  • Page 209 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.8: Wiring List - NAP34A RF Power Module Source Destination Wire # Colour Size Remarks P6-07 P3-17 Shield Shielded P6-02 P3-03 White 1 Conductor P6-08 P3-16 Shield Shielded P6-04 P3-07 White 1 Conductor P6-08...
  • Page 210 Table 4.9: NAP34A RF Power Module - Connector Mating Information Connector Mate A1A1 A1J3 A1J2 A1J4 A14J5 A3J1 Table 4.10: Wiring List - Fan Tray Assembly (Nautel Part # 202-7020) Source Destination Wire # Colour Size Remarks B1-Red Lead of B1...
  • Page 211 XR6/XR3 Troubleshooting Manual Wiring/connector lists Table 4.11: Fan Tray Assembly - Connector Mating Information Connector Mate Issue 3.0 2009-07-15 Page 4-17...
  • Page 212 XR6/XR3 Troubleshooting Manual Wiring/connector lists Page 4-18 Issue 3.0 2009-07-15...

  • Page 213: Reading Electrical Schematics

    XR6/XR3 Troubleshooting Manual Reading Electrical Schematics Section 5: Reading Electrical Schematics This section contains electrical schematics and logic diagrams for the XR6/XR3 transmitter. Block diagrams, simplified electrical schematics, and logic diagrams may be included. Refer to Table 5.1 on page 5-5 for an itemized listing.

  • Page 214: Unique Symbols

    XR6/XR3 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 215: Structure Of Schematics

    3-1, and follow the family tree branches to the block that contains the reference designation and associated Nautel nomenclature (e.g., NAP34A). Refer to Table 5.1 with the Nautel nomenclature number and the description to identify the appropriate figure number.

  • Page 216: Locating A Part Or Assembly On A Schematic

    Refer to Table 4.1 with the name and Nautel nomenclature number of each family tree block in the path, starting at the highest assembly (normally Figure MD-1). Determine the figure number for that assembly.
  • Page 217 XR6/XR3 Transmitter - Exciter Stage (Sheet 2 of 4) SD-3A XR6/XR3 Transmitter - Ac/Dc Power Stage (3-Phase Ac) and RF Power Stage (Sheet 3 of 4) SD-3B XR6/XR3 Transmitter - Ac/Dc Power Stage (1-Phase Ac) and RF Power Stage (Sheet 3 of 4)
  • Page 218 XR6/XR3 Troubleshooting Manual Reading Electrical Schematics Page 5-6 Issue 3.0 2009-07-15...
  • Page 219 # RMT COMMON - (LED 7) SHIELD AUDIO REFLECTED POWER SAMPLE POWER SUPPLY LED_A RESET (LED 8) # RF OVERCURRENT + AC MAINS S2020099 V1 LED_K Figure SD-1: XR6/XR3 Transmitter - Control/Monitor Stage (Sheet 1 of 4) Issue 3.1 2014-05-07 SD-1...
  • Page 220 # PDM LATCH (B) + -15V (B) AUDIO SHIELD (B) AUDIO (B) # INHIBIT PDM (B) - PDM 2 (B) +5V (B) +15V (B) PDM 1 (B) S2020069 V3 Figure SD-2: XR6/XR3 Transmitter - Exciter Stage (Sheet 2 of 4) Issue 3.1 2014-05-07 SD-2...
  • Page 221 RF2 (B) FAN 48V (1) +24V FAN 48V (2) TRAY # PM ENABLE - RELAY ASSY S2020072 V3 Figure SD-3A: XR6/XR3 Transmitter - Ac/Dc Power Stage (3-Phase Ac) and RF Power Stage (Sheet 3 of 4) Issue 3.1 2014-05-07 SD-3A...
  • Page 222 RF2 (B) FAN 48V (1) +24V FAN 48V (2) TRAY # PM ENABLE - RELAY ASSY S2020111 V1 Figure SD-3B: XR6/XR3 Transmitter - Ac/Dc Power Stage (1-Phase Ac) and RF Power Stage (Sheet 3 of 4) Issue 3.1 2014-05-07 SD-3B...
  • Page 223 REFLECTED POWER SAMPLE 68.1K 4750 47pF P6KE30CA 1N5711 0.5W 0.5W U1:C 6810 +24V AD822AN E2 100 P6KE30CA S2020112 V1 RF CURRENT SAMPLE TO SHEET 3 Figure SD-4: XR6/XR3 Transmitter - RF Output Filter (Sheet 4 of 4) Issue 3.1 2014-05-07 SD-4...
  • Page 224 E1:2 E1:3 #STANDBY_2- INT BUS (+)/ # STANDBY CODE 2 - #RMT_RF_ON+ SHEET 2 E1:1 E2:2 E2:3 INT BUS (-)/ EXT TXD EXTERNAL # RMT RF ON +/OFF - +15V SERIAL MICROCONTROLLER E2:1 TP14 INTERFACE MSR516N MISO TXD0 PE.7 DATABUS MMBT4401LT1 TO SHEET 2 R249...
  • Page 225 DATABUS DIGITAL INPUTS RESET CPLD SHEET 1 ADDRESS R181 R180 R179 R161 R182 R148 10.0K 10.0K 10.0K 10.0K 10.0K 10.0K #SS1(ADC1)- FROM #SS2(ADC2)- U23:H SHEET 1 #SS3(ADC3)- U23:G #SS4(DAC1)- SHEET 3 U23:F #SS5(DAC2)- #LOW_BAT- U23:E #SS6(RTC)- U23:D INT0 #AC_LOW- SHEET 1 U23:C #REFLD_PWR_SHUTBACK+ FROM...
  • Page 226 U35:H MC1413BD 0.01 TP12 U27:E +15V -15V R136 R135 MC33074AD +15V +15V 10.0K 10.0K C148 C149 10 12 +15V 0.01 U2:A U13:G ANALOG TO DIGITAL TP18 +15V SN74AHCT14D CONVERTERS TLC1543IDW 39.2K +24V +24V 11 13 10.0K CHARGER_CURRENT 0.01 FWD_PWR_SAMPLE 0.01 TP20 U14:G REFLD_PWR_SAMPLE...
  • Page 227 BAT_CUR_SAMPLE U3:A BATTERY CURRENT FWD PWR SAMPLE 1000 475K 475K SPEAKER_REF_LEVEL 10.0K U2:C TO SHEET 3 8250 1000 0.001 8250 5620 0.0022 10.0K 10.0K BAT_VOLT_SAMPLE U3:B 0.0047 SHEET 3 BATTERY VOLTAGE 1000 475K 475K 10.0K FWD_PWR_SAMPLE U2:D TO SHEET 3 FROM SHEET 3 +15V...
  • Page 228 Figure SD-9: NAPX05E/02 Dynamic Carrier Control PWB (Sheet 1of 2) Issue 3.1 2014-05-07 SD-9...
  • Page 229 Figure SD-10: NAPX05E/02 Dynamic Carrier Control PWB (Sheet 2 of 2) Issue 3.1 2014-05-07 SD-10...
  • Page 230 PA VOLTS IPM +24V AUDIO (A) +24V +24V CTRL MAG/AUDIO K1:C AUDIO SHIELD (A) +24V +24V RMT U2:A PA VOLTS SAMPLE PA VOLTS 4750 1000 0.01 AUDIO (B) E1:3 EXT 2Fpdm (A) AUDIO SHIELD (B) 2Fpdm (A) E1:2 IPM COMPENSATION (A) IPM COMPENSATION (A) 2Fpdm (A) Fc (A)
  • Page 231 +3.3V-D 4FC/B # DDS INHIBIT + 4750 +3.3V-D +3.3V-D P1.7 2N3904 +3.3V-D MBD301 P1.6 # RESET DDS + # HIGH BAND - 4750 P3.0/RxD 4750 2N3904 +3.3V-D P3.1/TxD E3:3 E3:2 # TUNE RF DRIVE + +3.3V-D 4750 +3.3V-D X1000 P3.2/INT0 P1.0/T2 +5V-B HIGH...
  • Page 232 4FC/B 2740 1210 +15V-A BALANCED DENOTES FREQUENCY DEPENDENT PART. DRIVE REFER TO REF DES INDEX FOR VALUE/PART NUMBER. 1 E5:A 1000 RF DRIVE +15V-A SYMMETRY 3 E5:B +15V-C SYMMETRY ADJust +15V-A +15V-A 0.47 U10:D 5 E5:C 1000μH E6:3 DISABLE RF DRIVE 3320 2N2219A 4750...
  • Page 233 2.21M +15V-B INTEGRATOR 330pF TP19 PEAK DETECTOR TP15 TP16 1500 U7:A U1:A 100pF U12:C F PDM 0.047 1000 2 FPDM +15V-A 1000 100pF 2.21M LINEAR 1210 1000 U8:A TP10 INTEGRATOR PDM DIVIDER U5:A +15V-A 2.21M 0.22 33.2K E1:3 U2:C U13:B DUMP E2:3 U2:D...
  • Page 234 MISO RESET SERIAL U25:A DIGITAL_IN_MISO FROM SHEET 4 MISO PROGRAMMING HEADER MOSI MOSI TP18 R121 10.0K 0.01 TP15 R117 10.0K TO SHEET 3 & 4 +15V +15V RESET RESET ADM803MAKS C127 MOSI 0.01 0.01 ATmega8-16AI LATCH_CLK PD.7 TO SHEET 3 TP17 LOAD_DAC PD.6...
  • Page 235 U33:E +15V -15V MC3302D U29:E FORWARD POWER SAMPLE C133 C129 +15V -15V TP11 R191 MC33074AD C113 C115 MOD PROT 1000 THRESHOLD U32:A R180 +15V 33.2K C126 R165 0.01 U32:E R175 +15V -15V GAIN CONTROL MC3302D 1000 C131 C132 U28:B U32:B +15V -15V AD620R...
  • Page 236 LOAD_DAC FROM SHEET 1 LOAD U12:A # RF ON STATUS - 10.0 DACA U12:B U19:A FORWARD POWER SAMPLE # REMOTE STATUS - 0.01 10.0K 10.0 10.0 10.0 TLV5620ID U12:C # PRESET 1 STATUS - DACB RESET 10.0K U19:B REFLECTED POWER SAMPLE 10.0 0.01 VOUT...
  • Page 237 DIFF E19:2 EXTERNAL +24V SUPPLY +24V-A E19:1 SINGLE +24V E19:3 4750 +24V-A # EXT RF OFF - R197 U9:B 4750 U15:G CR14 MOCD223-M 10.0K # EXT PDM INHIBIT - RF OFF - # PDM INHIBIT ALARM - #REMOTE_ACTIVE FROM SHEET 1 4750 4750 4750...
  • Page 238 Figure SD-19: NAP34A RF Power Module - Overall (Sheet 1 of 2) Issue 3.1 2014-05-07 SD-19...
  • Page 239 Figure SD-20: NAP34A RF Power Module - Modulator Stage (Sheet 2 of 2) Issue 3.1 2014-05-07 SD-20...
  • Page 240 Figure SD-21: NAPC150A RF Drive Control PWB (Sheet 1 of 3) Issue 3.1 2014-05-07 SD-21...
  • Page 241 Figure SD-22: NAPC150A RF Drive Control PWB (Sheet 2 of 3) Issue 3.1 2014-05-07 SD-22...
  • Page 242 Figure SD-23: NAPC150A RF Drive Control PWB (Sheet 3 of 3) Issue 3.1 2014-05-07 SD-23...
  • Page 243 Figure SD-24: NASM07H Modulator Assembly Issue 3.1 2014-05-07 SD-24...
  • Page 244 Figure SD-25: NAA51A/03 RF Amplifier Assembly Issue 3.1 2014-05-07 SD-25...
  • Page 245 +15V +15V # PM INTLK (A) - # PM INSTALLED(A) - # PM INTLK (B) - # PM INSTALLED (B) - 0.01 0.01 +24V +24V +15V CR25 +15V 1N4004 # B+ SEL 1 - R100 +15V 150K R103 TP10 0.01 IRF520 TP11 # B+ SEL 1 +...
  • Page 246 +48V SAMPLE +48V (TEST) RT11 RXE090 +48V +48V (FAN 1) K1:A +48V RXE090 +48V (FAN 2) RT10 RXE090 +48V +48V (FAN 3) TEST +24V # TUNE RF DRIVE (TEST) + RXE090 CR24 K1:B +48V (FAN 4) 1N4004 +15V 1000 0.5W E1:1 RXE090 R107...
  • Page 247 Figure SD-28: Not Used Issue 3.1 2014-05-07 SD-28...
  • Page 248 B+ SAMPLE 470K 1N4758A 0.5W 0.5W 470K 1N4744A 0.5W 5.5W LVPS K1:A DSP25-16A 5.5W PM A K2:A +24V 1N4004 2200 1N4004 K1:B K2:B P6KE7.5CA 7.5V # CLOSE B+ RELAYS - S2020105 SHEET 1 OF 1 V2 Figure SD-29A: NAPX31/05 B+ Distribution PWB Issue 3.1 2014-05-07 SD-29A...
  • Page 249 B+ SAMPLE 470K 1N4758A 0.5W 0.5W 470K 0.5W B+ (PM) ACS755LCB-050-PFF VOUT +15V +15V 1N4007 475K 0.01 IRF520 U5:A 1820 1500 100K 1.0M 22.1K DC CURRENT SAMPLE +15V 0.01 +15V 1500 +15V V_IN LM350T V_OUT CR11 1N4007 OVER CURRENT 475K 2N7000 1000 1820...
  • Page 250 +15V 8250 U12:A U12:D U1:C RF PHASE IN TL072CP 0.022 0.5W 0.01 E1:3 U2:B EXCTR A MIC4452CT U2:A RF DRIVE A E1:1 E1:2 K1:B RF DRIVE (TEST) U3:B MIC4452CT E2:3 EXCTR B U4:B U3:A MIC4452CT RF DRIVE B E2:1 E2:2 RF DRIVE (A) U5:B MIC4452CT...
  • Page 251 Figure SD-31: NAPS10B RF Drive Power Supply PWB Issue 3.1 2014-05-07 SD-31...

  • Page 252: Mechanical Drawings

    Mechanical Drawings Section 6: Mechanical Drawings Introduction This section contains mechanical drawings for assemblies of the XR6/XR3. Dimensional drawings may be included. Refer to Table 6.1 for an itemized list. Assembly detail drawings for assemblies and modules that have separate maintenance manuals are not included.
  • Page 253 XR6/XR3 Troubleshooting Manual Mechanical Drawings Table 6.1: List of Mechanical Drawings Figure # Title MD-1A XR6/XR3 Transmitter, 3-Phase Ac MD-1B XR6/XR3 Transmitter, 1-Phase Ac MD-2 NAC115A Control Panel (Rear View) MD-3 NAPC147D Control/Display PWB MD-4 NAPX05E/02 Dynamic Carrier Control PWB (optional)
  • Page 254 Figure MD-1A: XR6/XR3 Transmitter (3-Phase Ac) Issue 3.0 2009-07-15 MD-1A...
  • Page 255 Figure MD-1B: XR6/XR3 Transmitter (1-Phase Ac) Issue 3.0 2009-07-15 MD-1B...
  • Page 256 Control Display PWB DCC PWB (optional) Figure MD-2: NAC115A Control Panel (Rear View) Issue 3.0 2009-07-15 MD-2...
  • Page 257 +15V +24V -15V NAUTEL ASSY 195-2050 TP12 TP18 TP20 CONTROL/DISPLAY C111 C129 C134 NAPC GRID1 C120 C112 TP24 R122 SER. R243 R102 R117 R123 C115 C121 R144 R151 R155 R162 R169 C102 R103 R118 TP30 R246 R250 R145 R152 R156...
  • Page 258 NAPX05E/02 NAPX05E/01 shown Figure MD-4: NAPX05E/02 Dynamic Carrier Control PWB (optional) Issue 3.0 2009-07-15 MD-4...
  • Page 259 Remote A2A6 Interface NxLink Ethernet Interface Module U5 (Optional) A2A2 A2A3 A2A1 RF Synthesizer Interphase Exciter PWB ‘B’ PDM Driver Interface PWB ‘A’ A2A4 RF Synthesizer A2A5 PWB ‘B’ Interphase PDM Driver PWB ‘B’ Figure MD-5: NAE93B Exciter Panel Issue 3.0 2009-07-15 MD-5...
  • Page 260 M3 PAN HEAD SCREW SEMICONDUCTOR M3 WASHER #4 BELLEVILLE WASHER M3 HEX NUT U3 MOUNTING DETAIL TORQUE ATACHING HARDWARE TO 4.0 INCH POUNDS (0.45 NEWTON METERS) 3 2 1 M2020060 V2 Figure MD-6: NAPI82A Exciter Interface PWB Issue 3.0 2009-07-15 MD-6...
  • Page 261 IPM BAL NAPE NAUTEL ASSY 10MHz 194-3060 SER. RF SYNTHESIZER INPUT 1 2 3 M3 PAN HEAD SCREW OPEN SEMICONDUCTOR HEATSINK (OMIT FOR U11) SYMMETRY ADJ EXT INT ENABLE DISABLE M2000125 V1 M3 WASHER #4 BELLEVILLE WASHER HIGH SOURCE EXT INT...
  • Page 262 DUMP TP16 TP15 GAIN TP18 INTERPHASE PDM DRIVER NAPM10 SER. M1970092 V2 Figure MD-8: NAPM10B Interphase PDM Driver PWB Issue 3.0 2009-07-15 MD-8...
  • Page 263 TP17 +24V MONITOR REMOTE INTERFACE RS-232 NAPI83 GAIN TP19 RS-232 EXT RF IN FREQUENCY SAMPLE TP14 MONITOR AUDIO INHB +24V INTLK SUPPLY TP12 DIFF R127 MOD PROT MAG GAIN TP13 THRESHOLD TP15 SINGLE NORMAL +15V TEST TP10 R165 TP11 TP16 -15V AUDIO FILTER TP18...
  • Page 264 Figure MD-10: NAPP02/02 RF Current Probe PWB: Issue 3.0 2009-07-15 MD-10...
  • Page 265 FRONT REAR M2020038 V1 Figure MD-11: Static Drain Choke PWB (202-6045) Issue 3.0 2009-07-15 MD-11...
  • Page 266 A1 DETAIL Figure MD-12: NAFP103/05 Forward/Reflected Power Probe Issue 3.0 2009-07-15 MD-12...
  • Page 267 SPARK SHUTBACK M1940071 V2 A1 DETAIL Figure MD-13: NAX211 Surge Arrestor: Issue 3.0 2009-07-15 MD-13...
  • Page 268 PA Input/ RF Amplifiers (8) Output PWBs (4) A10, A11, A12, A13 A8, A9, A19, A20 A21, A22, A23, A24 Power Block ‘A’ Power Block ‘B’ Power Block ‘C’ Power Block ‘D’ RF Drive ‘B’ Control ‘A’ ‘C’ ‘D’ Modulators (4) Modulator Input/ A4, A5, A15, A16 Output PWB...
  • Page 269 Modulator Filter Assemblies (4) A6, A7, A17, A18 RF Drive Tuning Assembly Guide Pins (U/S) Figure MD-15: NAP34A RF Power Module (Rear and Left-Side Views) Issue 3.0 2009-07-15 MD-15...
  • Page 270 Figure MD-16: NAPC150A RF Drive Control PWB Issue 3.0 2009-07-15 MD-16...
  • Page 271 CARRIER COARSE FREQUENCY TUNING (kHz) POSITION (mm) 1000 1100 1200 Tuned RF 1300 Drive Output 1400 1500 WHEN ESTABLISHING THE COARSE 1600 TUNING POSITION, MEASURE BETWEEN THESE SURFACES DRIVE SCREW RF Drive Input Figure MD-17: NAX180C RF Tuning Assembly Issue 3.0 2009-07-15 MD-17...
  • Page 272 Figure MD-18: NASM07H Modulator Assembly Issue 3.0 2009-07-15 MD-18...
  • Page 273 Figure MD-19: PA Input/Output PWB (176-1065-04 and -05) Issue 3.0 2009-07-15 MD-19...
  • Page 274 Figure MD-20: NAA51A/03 RF Amplifier Assembly Issue 3.0 2009-07-15 MD-20...
  • Page 275 Figure MD-21: NAPI47B Modulator Input/Output PWB Issue 3.0 2009-07-15 MD-21...
  • Page 276 Figure MD-22: Capacitor Bracket Assembly (194-1012) Issue 3.0 2009-07-15 MD-22...
  • Page 277 Figure MD-23: NAPI90/02 Distribution PWB Issue 3.0 2009-07-15 MD-23...
  • Page 278 Figure MD-24: Relay Assy (202-7019-01) Issue 3.0 2009-07-15 MD-24...
  • Page 279 Figure MD-25: Fan Tray (202-7020) Issue 3.0 2009-07-15 MD-25...
  • Page 280 Figure MD-26: NAPS10C RF Drive Power Supply (62 V) Issue 3.0 2009-07-15 MD-26...
  • Page 281 NAUTEL ASSY 202-7050 B+ DISTR IBUTION NAPX SER . M2020108 V 1 Figure MD-27A: NAPX31/05 B+ Distribution PWB (3-Phase Ac) Issue 3.0 2009-07-15 MD-27A...
  • Page 282 CR 11 GR ID1 CR 4 R 20 CR 6 CR 7 R 32 R 11 R 21 R 26 R 33 R 12 R 27 R 23 R 28 R 13 R 24 R 29 A B C D E F G H I J R 14 R 25 CR 9...
  • Page 283 Figure MD-28A: Rectifier Assembly, 3-Phase Ac (202-7017) Issue 3.0 2009-07-15 MD-28A...
  • Page 284 Figure MD-28B: Rectifier Assembly, 1-Phase Ac (202-7220) Issue 3.0 2009-07-15 MD-28B...
  • Page 285 RF DRIVE (TEST) RF DRIVER NAPE77 SER. RF DRIVE (A) RF PHASE RF DRIVE (B) RF DRIVE (C) M3 PAN HEAD SCREW SEMICONDUCTOR HEATSINK RF DRIVE (D) RF DRIVE A M3 WASHER EXCTR A RF DRIVE (E) #4 BELLEVILLE WASHER RF DRIVE B M3 HEX NUT EXCTR B...
  • Page 286 List of terms Section 7: List of terms This section defines some of the terms that are used in Nautel documentation. Audio Engineering Society/European Broadcasting Union (AES/EBU) is the name of a AES-EBU. digital audio transfer standard. The AES/EBU digital interface is usually implemented using 3-pin XLR connectors (the same type connector used in professional microphones).
  • Page 287 Preset. day and date basis. Exciters can be configured on a preset for a specific operating mode (for example, Exciter A - conventional AM, and Exciter B - IBOC). The XR6/XR3 allows you to pre-program up to six presets. A complete loss of RF output power, caused by any one of a variety of faults, including Shutback.
  • Page 288 Acrobat documentation, viii NAPE70B RF synthesizer PWB arcing, xiii Nautel # column, 3-22 Nautel User Group, on website, viii Connector mating information, newsletter, for customers, viii customer newsletter, viii NUG, Nautel User Group, viii Description column,...
  • Page 289 Schematics, identifying, Schematics, logic symbols, Schematics, reference designations, Schematics, structure, Schematics, unique symbols, training, typical program content ungrounded surfaces, xiii user group, on Nautel website, viii user guides, viii using this manual, Vendor # column, 3-23 warning signs, xiii website, Nautel,...
  • Page 291 Toll Free: +1.877.6NAUTEL (6628835) (Canada & USA only) 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 2009 NAUTEL. All rights reserved.

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