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E.F. Johnson Company VIKING VX Manual

Vhf ltr 25w-110w
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VIKING
VX
VHF LTR
25W-110W Repeater
Part No. 242-20X1-213
First Printing
August 2000
PRELIMINARY
October 1995
1-1
Part No. 001-2008-202

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  • Page 1 ® VIKING VHF LTR 25W-110W Repeater Part No. 242-20X1-213 First Printing August 2000 PRELIMINARY October 1995 Part No. 001-2008-202...
  • Page 2 October 1995 Part No. 001-2008-202...
  • Page 3 Commission limits. The information in this document is subject to change without notice. E.F. Johnson Company will not be liable for any misunderstanding due to misinformation or errors found in this document. LTR, LTR-Net, Multi-Net, Viking Head/EFJohnson Logo, Call Guard and SUMMIT are registered trademarks of E.F. Johnson Company All other company and/or product names used in this manual are trademarks and/or registered trademarks of their respective manufacturer.
  • Page 4 FCC EXPOSURE LIMITS This fixed station radio transceiver was tested by the manufacturer with an appropriate antenna in order to verify compliance with Maximum Permissible Exposure (MPE) limits set under Section 2.1091 of the FCC Rules and Regulations. The guide- lines used in the evaluation are derived from Table 1 (B) titled “Limits For General Population/Uncontrolled Exposure”...

  • Page 5: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION AND OPERATION SCOPE OF MANUAL ............... . .1-1 REPEATER DESCRIPTION .
  • Page 6 TABLE OF CONTENTS (CONT.) REPEATER PROGRAM SOFTWARE ............3-2 INSTALLING THE SOFTWARE .
  • Page 7 TABLE OF CONTENTS (CONT.) CIRCUIT DESCRIPTION RECEIVER ................. .6-1 INTRODUCTION .
  • Page 8 TABLE OF CONTENTS (CONT.) BATTERY BACK-UP MODULE ............. . 6-24 OPERATION .
  • Page 9 TABLE OF CONTENTS (CONT.) ALIGNMENT AND TEST PROCEDURES RECEIVER ALIGNMENT ..............7-1 PRETEST .
  • Page 10 VIKING VX VHF LTR REPEATER........
  • Page 11 MIXED VIKING VX AND CR1100 REPEATER INSTALLATION ........
  • Page 12 TABLE OF CONTENTS (CONT.) 4-19 HARDWARE MENU................4-7 4-20 HSDB MONITOR .
  • Page 13 TABLE OF CONTENTS (CONT.) LIST OF TABLES REPEATER ACCESSORIES 1-2 ACTIVE REPEATER ALARMS 1-5 OUTPUT VOLTAGES 2-3 OVER VOLTAGE 2-3 REPEATER SETUP PARAMETERS 5-2 CERAMIC CHIP CAP IDENTIFICATION 8-6 CHIP INDUCTOR IDENTIFICATION 8-7...
  • Page 14 TABLE OF CONTENTS (CONT.)

  • Page 15: Introduction And Operation

    12.5/25 kHz 3 = 150-174 MHz 1.2 REPEATER DESCRIPTION The VIKING VX repeater is designed for opera- tion in a Johnson LTR system. It operates on the VHF Figure 1-2 PART NUMBER BREAKDOWN channels from 132-178 MHz. Channel spacing is 12.5/25 kHz and RF power output is adjustable from...

  • Page 16: Product Warranty

    The warranty statement is available from your 299 Johnson Avenue product supplier or from the Warranty Department, P.O. Box 1249 E.F. Johnson Company, 299 Johnson Avenue, Box Waseca, MN 56093-0514 1249, Waseca, MN 56093- 0514. This information 1.8 FACTORY RETURNS may also be requested by phone from the Warranty Department.

  • Page 17: Replacement Parts

    Department before returning equipment. A service ber is shown in Section 1.7. representative may be able to suggest a solution to the problem so that return of the equipment would not be E.F. Johnson Company necessary. Service Parts Department 299 Johnson Avenue Be sure to fill out a Factory Repair Request Form P.O.

  • Page 18: Repeater Cards

    INTRODUCTION AND OPERATION Alarms When the Repeater is in Test mode the safety measures are disabled. Therefore, if the Repeater is keyed for an extended period and the power amplifier temperature increase, thermal shutdown will not occur. There are pop-up windows that appear in the Test mode screens to alert the user that there is an alarm and action should be taken.

  • Page 19: Active Repeater Alarms

    INTRODUCTION AND OPERATION Table 1-2 ACTIVE REPEATER ALARMS Alarm No. Definition Test Mode IAC input 1 Active IAC input 2 Active IAC input 3 Active IAC input 4 Active MAC Processor Alarm HSDB Processor/Cable Alarm IRDB Cable Alarm Switch (RNT)/CIM Channel Problem Alarm TIC Processor Alarm MMC Processor Alarm VNC Alarm...

  • Page 20: Main Audio Card (Mac)

    INTRODUCTION AND OPERATION 1.11.2 MAIN AUDIO CARD (MAC) Power Supply On/Off Switch Refer to Figure 1-3. S508 turns the power supply DC voltages on and off from the IAC in the front of the repeater. External Speaker Jack Power Indicator J104 provides repeater audio output to an external speaker.

  • Page 21: Power Supply

    1.12.1 INTRODUCTION This bus cable is installed in a daisy-chain manner between repeaters. If both VIKING VX and LTR NOTE: The VIKING VX does not require a separate repeaters are located at a site, 20 repeaters can be LTR logic drawer.

  • Page 22: Mobile Data Message Order

    INTRODUCTION AND OPERATION In its time slot, each repeater places information a five-repeater system are making calls. If all have on the data bus indicating its status. If a repeater is not Repeater 1 as their home channel (not very likely in busy, only start bits appear in its slot.
  • Page 23 INTRODUCTION AND OPERATION SPECIFICATIONS GENERAL (Per TIA 603) Frequency Ranges 132-178 MHz Transmit/Receive (132-150 MHz and 150-178 MHz) Dimensions 9.125" H x 17" W x 20.9" D AC Voltage/Frequency 100-240V AC/50-60 Hz AC Current 0.38A (Standby), 1.4A (25W), 5A (110W) AC Input Power 45W (Standby), 170W (25W), 560W (110W) DC Current at 26.5V DC (Low Power) 6.3A (25W), 16.5A (110W)
  • Page 24 INTRODUCTION AND OPERATION August 2000 1-10 Part No. 001-2001-200...

  • Page 25: Installation

    INSTALLATION SECTION 2 INSTALLATION 2.1 INTRODUCTION NOTE: If the Repeater is installed in an area that exceeds these environmental conditions, the site Information in this section tells how to set up the should be equipped with air filters to remove dust and repeater for operation in an LTR system.

  • Page 26: Ac Power

    TERMINAL considered when electrical work is being planned for the initial system. The VIKING VX Repeater power supply can be equipped with an optional 24V DC back-up in the Figure 2-2 TEMPERATURE SENSOR CABLE event of AC power failure. Since the transmitter will...

  • Page 27: Ac Input Requirements

    INSTALLATION POWER HARNESS BACKPLANE +26.5V GROUND RFIB +15V AC FAIL IN POWER SWITCH THERMAL SENSOR +15V REPEATER BACKPLANE Figure 2-3 POWER CABLE CONNECTOR AND SCHEMATIC 2.6.1 AC INPUT REQUIREMENTS Table 2-1 OUTPUT VOLTAGES AC Input Voltage: 100-240V AC Line Frequency: 50-60 Hz Voltage Current...

  • Page 28: Grounding

    = Voltage at the output of the combiner. As in any fixed radio installation, measures P = repeater output in watts should be taken to reduce the possibility of lightning damage to the Viking VX equipment. Proper ground- VSWR= ing eliminates shock hazard, protects against electro- 1.05 1.10 : 1...

  • Page 29: Protection Guidelines

    INSTALLATION 2.7.1 PROTECTION GUIDELINES Follow these guidelines for grounding and light- ning protection. Each Repeater installation site is dif- ferent; all of these may not apply. 1. Ensure that ground connections make good metal- to-metal contact (grounding rod, grounding tray, metal conduit) using #6 gauge solid wire or braided wire straps.

  • Page 30: Repeater Data Bus Installation

    You are responsi- use the adapter module. The BNC Adapter Module is ble for proper repacking. E.F. Johnson cannot be installed on the back of the VIKING VX repeater cabi- responsible for damage to equipment caused by net (see Figure 2-13).

  • Page 31: Connecting Receive And Transmit Antennas

    INSTALLATION CRYSTAL SELECTION GROUND HSDB CODE SELECTION Figure 2-6 RJ-11 TO BNC MPC JUMPERS Figure 2-8 ANTENNA CONNECTIONS Jumper J4 must be placed with the following guidelines (see Figure 2-6): J4, pins 3-4 for operation with the RJ-11 to BNC adapter module and mixed systems (20x1 and 1100) with any version of HSDB software.

  • Page 32: Single Repeater Installation

    INSTALLATION MPC SWITCHES Figure 2-10 SINGLE REPEATER INSTALLATION MPC SWITCHES MPC SWITCHES Figure 2-11 TWO REPEATER INSTALLATION August 2000 Part No. 001-2001-200...

  • Page 33: Three Or More Repeaters Installation

    INSTALLATION MPC SWITCHES END REPEATER MPC SWITCHES MIDDLE REPEATERS MPC SWITCHES END REPEATER Figure 2-12 THREE OR MORE REPEATERS INSTALLATION August 2000 Part No. 001-2001-200...

  • Page 34: Mixed Viking Vx And Cr1100 Repeater Installation

    INSTALLATION LOGIC RECEIVER EXCITER MPC SWITCHES ID VALIDATOR OPTIONAL MPC SWITCHES 50 OHM TERMINATION 50 OHM TERMINATION LOGIC RECEIVER EXCITER MPC SWITCHES Figure 2-13 MIXED VIKING VX AND CR1100 REPEATER INSTALLATION August 2000 Part No. 001-2001-200 2-10...

  • Page 35: Software

    SOFTWARE SECTION 3 SOFTWARE 3.1 INTRODUCTION Follow the computer instructions for loading the disk. The MS-DOS Revision 2.0 or later operating The Johnson 2000 Repeater Program on 3.5 inch system is needed to run the programs. The computer  disk, Part No. 023-9998-390, uses an IBM personal needs to have RS-232C capability, for example, the computer to program the EEPROM Memory in the...

  • Page 36: Command Line Options

    SOFTWARE 3.1.6 COLOR OR MONOCHROME OPERATION removed from the site or even stored indefinitely with- out affecting programming. Since EEPROM Memory is also reprogrammable, a new device is not needed if The programming software utilizes color for a programming is changed. color monitor and video card.

  • Page 37: Minimum Free Memory Required

    B:. Then insert the program disk in drive A: and type A:2004PGM2 (or B: 2004PRM2 if drive B: The software for the VIKING VX repeater pro- is being used). The program files are automatically grams the MPC to open and close the audio/data gates extracted into the current directory or disk.

  • Page 38: Help F1

    SOFTWARE Repeater menu. Under the menu heading Test are the alignment procedures for the PA (see Section 7.3), HELP - F1 Receiver (see Section 7.1), Exciter (see Section 7.2) Load and overall Full Repeater (see Section 7.4) including Save the MAC card (see Figure 3-1). Save As Print Config FILE...

  • Page 39: Pull Down Menus

    PULL DOWN MENUS SECTION 4 PULL DOWN MENUS 4.1 MENU DISPLAYS 4.2.1 LOAD The menus available are listed at the top of the Load reads information from a stored file. The screen (see Figure 3-2). Move the cursor with the program requests the filename to be loaded into the arrow keys to highlight the menu name.

  • Page 40: New

    PULL DOWN MENUS 4.2.4 NEW NOTE: A list of valid repeaters can be seen under the Edit-Select Repeater menu selection. This menu selection erases all Site and Repeater information in the programmer and loads factory 4.2.6 DOS SHELL defaults. If the current data has been changed, select- ing File ->...

  • Page 41: Edit

    PULL DOWN MENUS 4.3 EDIT To eliminate the chance of incorrect synthesizer settings arising from ambiguous frequencies, make sure this setting is correct. Telco Network Type None is used for LTR system repeaters. Area This is the same as the area bit used when pro- Figure 4-5 EDIT MENU gramming the mobiles.

  • Page 42: Select Repeater

    PULL DOWN MENUS RF Power Level Select Which Alarms To Edit Input Alarms This is the default power level. Enter the power Output Alarms level for transmit power. Cross Reference NOTE: This is not the actual power out level. Other factors must be considered for true power out.

  • Page 43: Repeater Type

    PULL DOWN MENUS Output Alarm Configuration Alarm Cross Reference Selection Output Type Selection Description Tx ID Select which Output Alarm is activated by each Input Alarm. Alarm 1 Output Type: Active Open DOOR OPEN Alarm 2 Output Type: Active Open FUEL 1/2 Alarm 3 Output Type: Active Open FUEL 1/4...

  • Page 44: Telephone Parameters

    PULL DOWN MENUS 4.3.6 TELEPHONE PARAMETERS Programming Setup Parameters Refer to the Telephone Interface Card manual, Count = 1 Part No. 004-2000-370, for information on the Tele- phone Access Parameters, Telephone Interface and TIC Calibration Data. Figure 4-15 PROGRAM WRITE SETUP 4.4 TRANSFER 4.4.2 READ SETUP PARAMETERS File Edit Transfer Hardware Test Utilities...

  • Page 45: Hardware

    PULL DOWN MENUS 4.5 HARDWARE The repeater receives the destination’s: Unique ID, Home Repeater Number, Group ID, Priority, Sta- tus and Time Stamp. The information sent to the des- tination in the update message from the repeater includes: Unique ID of originator, Home Repeater Number, Group ID, GoTo Channel Number, Free Channel Number and Priority of the current repeater.

  • Page 46: Revision/Version

    PULL DOWN MENUS RF Line Monitor Repeater Version Display Synthesizer Lock Lines Receive Parameters Exciter Synthesizer: Wideband Audio Output: Repeater Number: 1 Receive Synthesizer: LO Injection: Exciter High Stability: No RSSI: HSDB: 2.1d MAC: 1.09 TIC: 0.00 Receive High Stability: No Transmit Parameters System Parameters MPC or TPI: 10.12 05/23/95 11...

  • Page 47: Test

    PULL DOWN MENUS Frequency Adjust Power Output Adjust All Receive Tests TCXO Frequency Adjust Audio Distortion Hum & Noise Measurement SINAD Measurement Squelch Adjust Data Level Adjust Local Speaker/Mic Desense Check Miscellaneous Tests All Test All Transmit Tests Repeater Setup Audio Deviation Limit Receiver Transmitter Tests...

  • Page 48: Full Repeater

    PULL DOWN MENUS 4.6.4 FULL REPEATER 4.7.2 DISPLAY MODE This menu selection walks through the alignment This screen allows the color mode to be selected of the entire repeater. The Receiver and Exciter por- for color monitors. When using a laptop, monochrome tions are performance tests and adjustments.

  • Page 49: Repeater Programming

    REPEATER PROGRAMMING SECTION 5 REPEATER PROGRAMMING 5.1 CREATING A NEW FILE 13.Type in a valid DOS filename. For this example site1.dat is used. An example will be used to show the program- ming for a new file created for Site 1. 14.The file consists of default and repeater one under the filename of site1.dat.

  • Page 50: Repeater Setup Parameters

    REPEATER PROGRAMMING Table 5-1 REPEATER SETUP PARAMETERS Parameter Response Description Repeater Number 1-20 Each repeater is assigned a Home Repeater number from 1-20. Channel Frequency Each repeater is programmed with the transmit and receive fre- quency that it is operating on. Frequency Step 5 kHz or 6.25 kHz Allowable frequency spacing.

  • Page 51: Circuit Description

    CIRCUIT DESCRIPTION SECTION 6 CIRCUIT DESCRIPTION 6.1 RECEIVER 6.1.4 12.5 KHZ IF 6.1.1 INTRODUCTION First Mixer and Crystal Filter The receiver is a double conversion type with First mixer U101 mixes the receive frequency intermediate frequencies of 52.95 MHz and 450 kHz. with the first injection frequency to produce the 52.95 The first injection frequency is phase locked to a tem- MHz first IF.
  • Page 52 CIRCUIT DESCRIPTION MIXER 52.95 MHz 4-POLE 52.95 MHz 4-POLE RF AMP IF AMP BANDPASS FILTER BANDPASS FILTER U101 CRYSTAL FILTER CRYSTAL FILTER A201 U103A RF IN L102/L103/L104 L108/L109/L110 Z211A/B Q202 Z212A/B IF DETECTOR/AMP 17.5 MHz TCXO U203 U204A RSSI SYNTHESIZER Y401 BUFFER MULTIPLIER...

  • Page 53: 25 Khz If

    CIRCUIT DESCRIPTION MIXER 52.95 MHz 4-POLE 52.95 MHz 4-POLE RF AMP IF AMP BANDPASS FILTER BANDPASS FILTER U101 CRYSTAL FILTER CRYSTAL FILTER A201 U103A RF IN L102/L103/L104 L108/L109/L110 Z201A/Z201B Q201 Z202A/Z202B IF DETECTOR/AMP 17.5 MHz TCXO U201 U202A RSSI SYNTHESIZER Y401 BUFFER MULTIPLIER...

  • Page 54: Vco

    CIRCUIT DESCRIPTION Second Mixer/Detector RSSI Amplifier As shown in Figure 6-2, U201 contains second U201, pin 13 is an output from an internal RSSI oscillator, second mixer, limiter, detector and RSSI (receive signal strength indicator) circuit which pro- circuitry. The 52.95 MHz IF signal is mixed with a vides a current proportional to the strength of the 450 52.5 MHz signal produced by TCXO Y401, tripler kHz IF signal.

  • Page 55: Buffer

    CIRCUIT DESCRIPTION DATA OUT PORT SELECT 13-STAGE R COUNTER OUTPUT A LOGIC OSC OR 4-STAGE DIVIDER DOUBLE-BUFFERED R REGISTER 16 BITS LOCK DETECT AND CONTROL SHIFT CLOCK REGISTER C REGISTER 8 BITS OUTPUT B CONTROL (OPEN-DRAIN OUTPUT) DATA IN LOGIC PHASE/FREQUENCY ENABLE DETECTOR A...
  • Page 56 CIRCUIT DESCRIPTION The VCO frequency of A401 is controlled by a 6.25 kHz. Since the VCO is on frequency (receive fre- DC voltage produced by integrating the phase detec- quency plus 52.95 MHz) and no multiplication is used, tor output pulses of U401. The phase detector senses the channel frequencies change in 6.25 kHz steps and the phase and frequency of the two input signals (f the reference frequency (f...

  • Page 57: Buffer Amplifier

    CIRCUIT DESCRIPTION 6.1.10 BUFFER AMPLIFIER C451, thereby increasing the VCO control line volt- age. When a negative-going pulse occurs on pin 3, A cascode amplifier formed by Q401 and Q402 Q407 turns on which turns on Q409. Q409 sinks cur- provides amplification and also isolation between the rent to discharge the loop filter capacitors C450/C451 TCXO and Synthesizer U401.

  • Page 58: First And Second Injection Amplifiers

    CIRCUIT DESCRIPTION 6.1.15 FIRST AND SECOND INJECTION AM- The frequency is modulated in a similar manner. PLIFIERS The transmit audio/data signal is applied across varac- tor diode D102 to vary the VCO frequency at an audio U303 provides the +12V source for these ampli- rate.

  • Page 59: Synthesizer

    CIRCUIT DESCRIPTION BUFFER TCXO EX MOD U402B U402A Y401 SWITCH Q405 LPTT BUFFER U404A U404B V REF EX U407B SYNTHESIZER A007 Q410/Q411 Q413 TO PA PD OUT DATA BUFFER U403 BUFFER Q403/Q404 RF IN SYN CS EX BUFFER SYN LK EX Q406/Q407 REF IN Q414/Q415...

  • Page 60: Buffer Amplifier

    CIRCUIT DESCRIPTION Frequencies are selected by programming the To determine the overall divide number of the three counters in U403 to divide by assigned numbers. prescaler and N counter, the number of VCO output The programming of these counters is performed by pulses required to produce one N counter output pulse circuitry in the Third Party Interface (TPI), buffered can be counted.

  • Page 61: Lock Detect

    CIRCUIT DESCRIPTION 6.2.7 LOCK DETECT 6.2.9 BUFFER AMPLIFIER When the synthesizer is locked on frequency, the A cascode amplifier formed by Q410/Q411 pro- Lock Detect output on U403, pin 2 is a high voltage vides amplification and also isolation between the with narrow negative-going pulses.

  • Page 62: Final Amplifiers

    CIRCUIT DESCRIPTION FINAL 1 CURRENT U503 DRIVER CURRENT U509 Q502 RF OUTPUT FINAL 1 RF LOAD DRIVER PRE-DRIVER RF IN Q501 U501 U601A/B U651A/B POWER CONTROL U502 FINAL 2 TEMP SENSE Q503 FORWARD REVERSE TEMPERATURE SENSOR U506A U507 POWER (REFLECTED) POWER FINAL 2 CURRENT U504...

  • Page 63: Rf Interface Board

    CIRCUIT DESCRIPTION 6.4 RF INTERFACE BOARD Pins 5-6 UNUSED The RF Interface Board (RFIB) connects the Pin 7 RX WBAND Receiver, Exciter and Power Amplifier to the back- plane and power supply (see Figure 6-7). The wide band audio is from the receive audio demodulator U202 and goes to the MAC in the Con- The input and output connectors for the RF Inter- troller card cage.
  • Page 64 CIRCUIT DESCRIPTION Pin 14 V REF EX Pin 26 RF DATA B This is the 3.5V reference to the Exciter TCXO. The Data B (U105, pin 10) is the middle signifi- 3.5V from the Exciter is passed from J102, pin 9 to cant bit in the three multiplex chips located on the this pin and the backplane.

  • Page 65: Fan Connector (J104)

    CIRCUIT DESCRIPTION Pin 30 RSSI WO 116 +26.5V DC This pin is the Receive Signal Strength Indication This capacitive feedthrough pin is at +26.5V DC to the Controller. This RSSI is used for tune-up of the and carries the PA current, 25A nominal at 110W from Receiver front-end during factory test mode.

  • Page 66: Exciter Connector (J102)

    CIRCUIT DESCRIPTION WO 123 RF OUT 2 WO147 RF DETECT DRIVER This capacitive feedthrough pin is a voltage This senses power out of the driver. It is used to source that is a function of the output power of Q501. limit the power out of the driver to 0.4 dB over 110W The voltage level will be between 0V-5V and drive a at room temperature.

  • Page 67: Receiver Connector (J103)

    CIRCUIT DESCRIPTION Pin 12 SYN CS EX put power. The data has TTL levels. Up to four syn- thesizer chips and a shift register could be connected Pin 12 is the Exciter synthesizer chip select. It to this pin. allows data input to the synthesizer chip when the line 6.4.6 RECEIVER CONNECTOR (J103) is pulled to a logic low.
  • Page 68 CIRCUIT DESCRIPTION Pin 13 RX INJ This pin is the power sense for the Receiver injection. It is a linear voltage source that is a func- tion of the injection power. The voltage level will be between 0V - 5V and be able to drive a 10k ohm load. Pin 14 SYN LK RX Pin 14 is the main synthesizer lock detector out-...
  • Page 69 CIRCUIT DESCRIPTION MUX/RES FORWARD RF POWER CONTROL +26V P101 POWER PC STR U103 U102A P102 POWER +15V P103 ADJUST U102B Q102-Q105 P104 Q101 COMPARATOR P105 Q108 Q111B PWR CNTRL MUX 3 RF DET (PRE-DRIVER) U109A FORWARD POWER U112B FINAL 1 POWER U104 RF MUX3 INH U112A...

  • Page 70: Power Supply

    CIRCUIT DESCRIPTION 6.5 800W POWER SUPPLY C111. The resistor network connected to CR104 charges up C106/C107 to +18Voff the line. This pro- vides the bias voltage required to start the controller WARNING IC U102. Once the IC turns on current is being switched on L107.
  • Page 71 CIRCUIT DESCRIPTION Figure 6-8 BLOCK DIAGRAM August 2000 6-21 Part No. 001-2001-200...

  • Page 72: Synchronizing Circuits

    CIRCUIT DESCRIPTION In operation, the power MOSFETs Q116, Q118 converters, the cycle terminates and a new one starts. are on for approximately one-third of the period pro- This forces the +15V and +5V converters to run at the viding current to the primary side of T107. During same frequency and is slightly delayed from the that time CR121 is forward conducting and charging +26.5V converter.

  • Page 73: Converter

    CIRCUIT DESCRIPTION 6.5.6 +15V CONVERTER Sync pulse is added into the low side of C176 via C172 and R225. The free running frequency of the The input voltage to this "Buck" DC/DC con- 15V converter (approximately 145 kHz) is set about verter is the main +26.5V output fused through F102.

  • Page 74: Battery Back-Up Module

    CIRCUIT DESCRIPTION 6.6.2 CHARGER The majority of the voltage and current limits are set with fixed value components in the power supply. However, the +26.5V, +15V and +5.2V supplies are The charger charges the batteries when the adjustable. When certain components are replaced, repeater is on and switch S101 is "on".

  • Page 75: Reverse Battery Protection

    CIRCUIT DESCRIPTION 6.6.4 ENGAGING THE RELAY Charger Voltage The main purpose of the Battery Back-Up Mod- ule (BBM) is that when the power supply loses AC -55mV/°C line voltage, a pair of series connected 12V lead acid batteries (approximately 26.4V) or other 23-28.5V DC 27.3V source will engage to the supply allowing the repeater to operate.

  • Page 76: Bbm Fan Control

    CIRCUIT DESCRIPTION 6.6.6 BBM FAN CONTROL 6.7 CARD RACK The voltage supply to the thermal measurement The card rack provides slots for up to eight logic circuit is taken from the 26.5V DC line into the BBM. cards; including Main Processor Card (MPC), Main A precision temperature sensor U106 is mounted on Audio Card (MAC) and the Interface Alarm Card the PC board near a screw into the BBM bracket...

  • Page 77: External Connector Board

    CIRCUIT DESCRIPTION 6.8 EXTERNAL CONNECTOR BOARD The external connector board (A10) is the interface for the alarm outputs, connecting repeaters through the high speed data bus. ALARMS TO CARD RACK EXTERNAL CONNECTOR BOARD REPEATER I/O TO CARD RACK TO CARD RACK HIGH SPEED DATA BUS Figure 6-11 EXTERNAL CONNECTOR BOARD...

  • Page 78: Main Processor Card

    CIRCUIT DESCRIPTION P2-0 STAGING STAGING A19-A0 P2-1 LATCH LATCH PROGRAMMABLE P2-2 etc. P2-3 CONTROLLER P2-4 P2-5 TxD0 RxD0 SERIAL P1-6 COMMUNICATION CTS0 INTERFACE TxD1 RxD1 BAUD RATE CTS1 GENERATOR RESET INT ROM P2-6 16K BYTES P2-7 P1-0 P1-7 INT RAM P1-1 PROGRAMMABLE 256 BYTES...

  • Page 79: Main Controller Microprocessor

    CIRCUIT DESCRIPTION • Flash Memory, RAM, non-volatile EEPROM. peripherals. Internal RAM and the SFR area are together and can be relocated anywhere in the 1M- • I/O chip select to allow the addressing of data byte address space. This maintains compatibility with latches for Input/Output.

  • Page 80: Chip Select Decoders (U15/U4)

    CIRCUIT DESCRIPTION Microprocessor U13 is an 8052 that uses external Pins 1-10 ADDRESS BUS EPROM (Erasable Programmable Read Only Mem- Pins 33-42 ory) U14, an 8-bit device that stores the program. The microprocessor uses 2k x 8 EPROM and 64k x 8 This provides a path between the MPC main pro- RAM.

  • Page 81: J1 Computer Connector

    CIRCUIT DESCRIPTION 6.9.7 J2 MEMORY SELECT bus indicates which repeaters are in use and also which mobiles are using the system. This information is used by the repeater to encode data messages to the J2 is jumpered to select either the Flash memory mobiles that are monitoring that channel.

  • Page 82: Main Audio Card

    CIRCUIT DESCRIPTION 6.10 MAIN AUDIO CARD 6.10.2 AUDIO/DATA MICROPROCESSOR 6.10.1 INTRODUCTION This Audio/Data microprocessor is on the MAC card and is used to decode LTR data received from the This control card stores the information required mobiles. The LTR data is applied to U111, pin 8 (P1.7 to operate the routing of audio and data from the input).

  • Page 83: Receive Squelch Circuitry

    CIRCUIT DESCRIPTION From the audio amplifier the signal is fed to a output to the Audio/Data Test Point J100. U123D high-pass filter consisting of U122B/C/D. This filter functions as a timing buffer. The output of U123D is attenuates frequencies below 300 Hz which removes applied to Receive Squelch Active Gate U113D.

  • Page 84: Voter Audio

    CIRCUIT DESCRIPTION When the received audio must be routed to the microphone PTT switch is pressed. This prevents backplane (i.e. for other cards), Receive Voice Gate interference if the microphone remains live when the U115B is enabled by processor U111/latch U108 and PTT switch is pressed.

  • Page 85: Transmit Data And Cwid Processing

    CIRCUIT DESCRIPTION latch U107. When enabled, the gate passes the voice U111/latch U106. When enabled, this gate passes the to Transmit Option Gate U158C and on to the transmit modulation on pin 11 to the summing amplifier audio buffer U164B. Transmit Voice amplifier U130B U129B and gate U118D to the modulation input of the is adjusted by a level control.

  • Page 86: P100 External Outputs

    The High Speed Data Bus interconnects the Viking VX repeaters. A 50 ohm termination is Pins 49-55 UNUSED required if Viking VX repeaters are used with existing repeaters and the interface. Pin 58 VOTER DATA IN...

  • Page 87: J100 A D Level Test Point

    CIRCUIT DESCRIPTION 6.10.15 J101 SPEAKER/MICROPHONE Pin 10 EXT REQ1 This input provides for external requests from This jack is used in conjunction with J102 when a optional equipment. combination speaker/microphone is used during setup and testing of the repeater. Pin 11 EXT MOD 6.10.16 J102 LOCAL MICROPHONE This input provides for external wide band modu-...

  • Page 88: Interface Alarm Card

    CIRCUIT DESCRIPTION 6.11 INTERFACE ALARM CARD The isolated inputs are driven by either AC or DC signals. The active high inputs can be set by switches This card utilizes the information required to to be polarity sensitive, non-polarity sensitive or add a operate the alarms designated in the programming of resistance in series to dissipate unused power (see Fig- the repeater.

  • Page 89: Alarm Indicators

    CIRCUIT DESCRIPTION Standard 12V/24V AC control transformer out- 1 is fed back to the input alarm 1 of Repeater 1. Then puts can be accepted as well as DC voltages. This the RF Shutdown alarm (#32) is mapped for alarm 1 in input voltage range is 5-24V RMS.

  • Page 90: P500 Signaling Connector

    CIRCUIT DESCRIPTION 6.11.5 P500 SIGNALING CONNECTOR Pins 11-14 DATA BUS Pins 43-46 The input and output connectors for the IAC are defined as follows. The signal interface connector This data bus provides a means of transferring P500 (64 pin) connects the Address and Data buses data to and from the latches and multiplexers on the and control lines to the backplane connector.

  • Page 91: P501 External Outputs

    CIRCUIT DESCRIPTION 6.11.6 P501 EXTERNAL OUTPUTS Pins 28-29 +5V IN Pins 60-61 Connector P501 contains data and control outputs This is the +5V input to the MPC from the power to the terminal block on the back of the Repeater cabi- supply via the Controller backplane.
  • Page 92 CIRCUIT DESCRIPTION Pin 11 UNUSED Pin 23 AC FAIL OUT This is an indication that the AC power has been Pin 12 RF MUX 1 INH interrupted. The Multiplexer-1 Inhibit (U105, pin 6) is a Pin 24 UNUSED CMOS input from the Controller that inhibits (dis- ables) the Multiplexer-1 output with a logic high.

  • Page 93: J500 A D Level Test Point

    CIRCUIT DESCRIPTION 6.11.9 J502 +15V Pin 32 RF DATA This is a data pin with TTL levels from the Con- J502 is a voltage test point. troller which has the dual role of loading the synthe- 6.11.10 POWER SWITCH sizer chips and adjusting the power control D/A lines for proper output power.
  • Page 94 CIRCUIT DESCRIPTION August 2000 Part No. 001-2001-200 6-44...
  • Page 95 ADDRESS BUS (19:0) EPROM A0-A19 A0-A14 LED DRIVER MAIN MICROPROCESSOR FLASH MEMORY D0-D7 A0-A19 A0-A16 A0-A12 READY LPTT Q2/Q3 U30A/U31A DATA BUS (7:0) T OUT DQ0-DQ7 D0-D7 DISPLAY DRIVER FLASH EPROM DMARQ0 RESET DMAAKO DMARQ1 D0-D7 RST1 BALANCED Rx/Tx RESET IRDB- INT POLL RES IN...
  • Page 96 U115A VOTER AUDIO MUTE U108 U114D LOCAL AUDIO MUTE U113C RX MUTE GATE LATCHES U114A RX OPTION P101 ADDRESS LATCHES A0-A19 D1-D8 U115B RX VOICE U116B RX AUDIO U115C RX VOICE TO BACKPLANE U116A FSK TO AUDIO A16-A19 A12-A15 U103 U133 U153C REPEAT U107...
  • Page 97 Rx VOICE LOCAL AUDIO GATE OUTPUT AMPLIFIER J104 U114D U132 EXTERNAL SPEAKER J101 U108 SPEAKER/MIC Rx VOICE P100 VOTER AUDIO VOTER AUDIO TO BACKPLANE AMPLIFIER MUTE Rx VOICE VOICE P100 GATE GATE AMPLIFIER U120A U115A U115B U120B U115C VOTER AUDIO 25 31 Rx VOICE U108 U108...
  • Page 98 P500 S500 P500 ALARM 1 IN ALARM INPUTS +15V RF INTERFACE CR507 P501 U520 CR506 RF MUX 1 INH RF MUX 2 INH DATA BUS (7:0) DO-D7 D0-D7 RF MUX 3 INH PC STR IAC ADDRESSING LED CONTROL U505 HS CS EX MISC INPUTS STN CS EX S501...

  • Page 99: Alignment And Test Procedures

    ALIGNMENT AND TEST PROCEDURES SECTION 7 ALIGNMENT AND TEST PROCEDURES 7.1 RECEIVER ALIGNMENT 1. Using the PC and software, program the Synthe- sizer for the Receive frequency. R I T I C A L A D J U S T M E N T 2.

  • Page 100: Receiver Frequency Adjust

    ALIGNMENT AND TEST PROCEDURES J201 J204 J205 U304 Q408 Q407 TP401 Q401 Q409 U401 Q402 Q403 RV212 Y201 RV202 Z216 Z215 Q410 U303 FL201 Q411 Z214 U203 Q132 CV152 CV151 Q131 Z204 TP102 L216 L141 L140 Z206 Z205 L214 CV106 CV103 CV102 CV105...

  • Page 101: Audio Distortion

    ALIGNMENT AND TEST PROCEDURES 8. Tune Z205 for 2V ±0.05V at U201, pin 9. 3. Increase the signal generator RF frequency 2.5 kHz. 9. Tune RV203 for 387 mV RMS, ±5 mV RMS, at 4. Adjust CV211 for peak DC voltage at TP201. TP202.

  • Page 102: Exciter Alignment

    ALIGNMENT AND TEST PROCEDURES 7.2 EXCITER ALIGNMENT C R I T I C A L A D J U S T M E N T J402 The TCXO must be adjusted within 5 minutes of turn- ing the AC power on to the repeater. Do not under any RV101 circumstances try to set frequency later on in any of the tests, as TCXO frequency stability cannot then be...

  • Page 103: Vco Test

    ALIGNMENT AND TEST PROCEDURES 4. Measure the Power Output of the Exciter at J402. 7. The voltage on TP1 (U403, pin 6) should be > 2.5V. Reading should be > +18 dBm. Power output should be > +18 dBm. 5. Press the space bar to unkey the Exciter. 8.

  • Page 104: Power Amplifier Alignment

    ALIGNMENT AND TEST PROCEDURES • 9. Press the space bar to key the Exciter. A test signal is being injected to the PA with +19 dBm. 10.Set RV101 for "best" square wave as observed on the modulation analyzer output to the oscilloscope. Connect an antenna or dummy load to the RF port (50 ohm impedance).
  • Page 105 ALIGNMENT AND TEST PROCEDURES RV601 RV501 C602 C601 RV502 RV602 Figure 7-3 110W POWER AMPLIFIER ALIGNMENT POINTS J104 R170 J103 J102 U108 R171 R150 R106 U104 WO143 J101 WO144 WO147 REV PWR +15V WO126 WO124 WO123 WO145 WO127 WO120 WO121 WO115 WO125 WO122...
  • Page 106 ALIGNMENT AND TEST PROCEDURES VOLTMETER VOLTMETER OSCILLOSCOPE 16 OHM AUDIO DISTORTION POWER CABLES ANALYZER COMMUNICATIONS HP 334A SERVICE MONITOR 36-PIN RIBBON CABLE FREQUENCY COUNTER RFIB J201 J401 J201 J204 J205 U304 Q408 Q407 TP401 Q401 Q409 U401 Q402 Q403 RV212 Y201 RV202 Z215...
  • Page 107 ALIGNMENT AND TEST PROCEDURES VOLTMETER VOLTMETER OSCILLOSCOPE MODULATION ANALYZER POWER CABLES HP 8901A 10 dB POWER METER 36-PIN RIBBON CABLE 50 OHM DUMMY LOAD HP 436A 10 dB RFIB J402 RV101 Q414 A007 RV401 Figure 7-7 EXCITER TEST SETUP August 2000 Part No.
  • Page 108 ALIGNMENT AND TEST PROCEDURES J103 PROG JACK A D LEVEL J100 RESET LOCAL POWER ON/OFF/VOL CWID R236 HANG SWITCH MOBILE J 102 XMIT SPKR J 101 TEST POINT EXT SPKR J104 J500 J501 J502 +15V RV601 POWER METER 50 OHM DUMMY LOAD HP 436A 40 dB...

  • Page 109: Full Repeater Alignment

    6. Adjust the frequency with Y401 (TCXO) on the 7.4.2 REPEATER SETUP Exciter (see Section 7.2.5). The VIKING VX repeater has been pretested at 7. Press the space bar to unkey the repeater. the factory, therefore only performance tests are required to check the repeater.
  • Page 110 ALIGNMENT AND TEST PROCEDURES Receiver Audio Distortion Measurement Receiver Squelch Adjustment 1. Adjust the RF generator for 100 µV into the 1. Adjust the RF generator for 100 µV into the receiver with a 1 kHz tone at ±3 kHz, 25 kHz chan- Receiver with a modulation tone of 1 kHz at ±3 kHz deviation (25 kHz channels) nels (±1.5 kHz deviation 12.5 kHz channels).

  • Page 111: Transmit Audio/Data Level Adjustments

    ALIGNMENT AND TEST PROCEDURES 3. Adjust R236 for 2.8V RMS. 3. Press the space bar to key the transmitter. 4. Re-adjust the RF generator output for 12 dB 4. Adjust R305 for 0 dBm (775 mV RMS). SINAD. 5. Press the space bar to unkey the transmitter. 5.
  • Page 112 ALIGNMENT AND TEST PROCEDURES 4. Deviation should measure ±3 to ±3.5 kHz, 25 kHz Data Level Adjustment channels, (±0.75 kHz to 1.6 kHz, 12.5 kHz 1. Remove VNC cards if present. channels). Set modulation analyzer LPF to 3 kHz. Press the space bar to key the transmitter. 5.

  • Page 113: Voter Audio Level Adjustment

    ALIGNMENT AND TEST PROCEDURES 5. On the modulation analyzer select: 3. Connect a balanced AC voltmeter with a 600 ohm input impedance between balanced lines RXA+ and 300 Hz RXA- on J2, located on the back of the Repeater. 3 kHz 750 µs de-emphasis 4.

  • Page 114: Repeater Operation

    ALIGNMENT AND TEST PROCEDURES 7.4.8 REPEATER OPERATION Alarm Test New HSDB Test 1. The repeater is now in Normal Operation mode. 1. On the MPC, switch settings for RS-485 operation 2. Verify by the MPC front panel indicators that no are shown in Figure 7-10.
  • Page 115 ALIGNMENT AND TEST PROCEDURES WATCH DOG S101 RNT RS-232 RESET P101 S102 J103 SEC AUDIO U149 TO RNT RX NET LEVEL SECONDARY AUDIO TO RNT A D LEVEL S100 J100 SEC AUDIO TEST POINT FROM RNT TO RNT EXTERNAL MODEM 2-3/4-5 NORMAL OPERATION 1-2/3-4 LTR DATA MODEM MAIN AUDIO...
  • Page 116 ALIGNMENT AND TEST PROCEDURES 1 2 3 4 5 6 7 8 1 2 3 4 WATCHDOG RESET BALANCED RX/TX 1 2 3 1 2 3 HSDB 11.059 12 MULTI-NET EPROM MEMORY LOADING 1 10 USED WITH CR3/4 FOR ALARMS - MPC OPERATIONAL (BLINKING) - ON = HIGH POWER, OFF = LOW POWER - ON = LTR, OFF = MULTI-NET...
  • Page 117 ALIGNMENT AND TEST PROCEDURES ALARM 1 ALARM 2 +15V +15V S500 S501 ALARM 3 ALARM 4 +15V +15V S502 S503 P500 J504 J503 ALARM 4 ALARM 3 OUTPUT OUTPUT 1-2 ALARM 1-2 ALARM 2-3 AD LEVEL 2-3 AD LEVEL CR525 +15V (GRN) CR523 +15V ACC (GRN)
  • Page 118 ALIGNMENT AND TEST PROCEDURES August 2000 Part No. 001-2001-200 7-20...

  • Page 119: Servicing

    SERVICING SECTION 8 SERVICING 8.1 INTRODUCTION 8.2 SYNTHESIZER SERVICING 8.1.1 PERIODIC CHECKS 8.2.1 INTRODUCTION This repeater should be put on a regular mainte- Synthesizer malfunctions can be caused by no nance schedule and an accurate performance record VCO output, or the VCO is unlocked. The VCO can maintained.

  • Page 120: Tcxo Module

    SERVICING 8.2.2 TCXO MODULE Modulus Control Signal Check the signal at TCXO, pin 5. It should be 1. The frequency of the modulus control signal on 17.5 MHz for Y201 and Y401 at a level of approxi- TEST 1, pin 9 should be equal to the N counter out- mately 3V P-P.

  • Page 121: Calculating "N " And "A " Counter Divide Numbers

    SERVICING 8.3 RECEIVER SERVICING Example: 150.250 MHz (receive) Prescaler Div No = 64 + (40 ÷ 507) = 64.106666 To isolate a receiver problem to a defective sec- tion, start by checking the DC voltages shown in Sec- Measure the prescaler input frequency at f , pin tion 6.1.2 and on the schematic diagram (Section 10).
  • Page 122 SERVICING AC FAIL +28V +15V +15V THERMAL SENSE ON/OFF Figure 8-3 POWER SUPPLY REAR VIEW CHARGER TEMP ACTIVE SWITCH REVERSE CHARGER BATTERY EARTH GROUND BATTERY FAULT LINE NEUTRAL Figure 8-4 POWER SUPPLY FRONT VIEW August 2000 Part No. 001-2001-200...

  • Page 123: Voltage Checks

    5 to ground, then check the supply voltages capacitor or by using a special code. as shown (see Figure 8-3). If voltages are absent the supply must be sent to the E.F. Johnson Company. 8.6.3 CHIP INDUCTORS (542-9000-XXX) Three colored dots are used to indicate the value 8.6 CHIP COMPONENT IDENTIFICATION...

  • Page 124: Ceramic Chip Cap Identification

    SERVICING The 3-digit number used to identify ±5% and ±10% resistors corresponds to the last 3-digits of the Table 8-1 CERAMIC CHIP CAP IDENTIFICATION E.F. Johnson part number. This number is derived as shown. American EIA Standard Japanese EIA Standard Example: First Letter/ First Letter/...

  • Page 125: Chip Transistors And Diodes

    SERVICING Table 8-2 CHIP INDUCTOR IDENTIFICATION Color 1st Digit 2nd Digit Multiplier (Last PN Digit) Black 1 (7) Brown 10 (8) 100 (9) Orange 1000 (0) Yellow 10,000 (1) Green 100,000 (2) Blue Violet Gray White 0.1 (6) 8.6.5 CHIP TRANSISTORS AND DIODES Surface mounted transistors and diodes are iden- tified by a special number that is shown in a table on Section 10.
  • Page 126 SERVICING August 2000 Part No. 001-2001-200...

  • Page 127: Parts List

    DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 010 1000 pF ±20% 1kV feedthru VIKING VX VHF LTR REPEATER 510-3149-102 C 011 1000 pF ±20% 1kV feedthru PART NO. 242-2011-213 (132-150 MHz) 510-3149-102 C 012 1000 pF ±20% 1kV feedthru PART NO. 242-2031-213(150-178 MHz) 510-3149-102 C 013 1000 pF ±20% 1kV feedthru...

  • Page 128: Transceiver Mechanical

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER HW019 6-32 machine flathead philips 575-8206-016 HW272 6-32 pan torx ZPS 575-0006-010 HW020 6-32 x 0.094 nut 560-1106-010 HW273 6-32 machine panhead philips 575-1606-016 HW021 8-32 socket head shield screw 575-9078-106 HW022 8 x 0.032 flat washer NPB 596-2408-012 MP253 Transceiver deck cover...

  • Page 129: External Connector Board

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 119 .1 µF ±10% X7R 1206 chip EXTERNAL CONNECTOR BOARD 510-3606-104 C 120 .1 µF ±10% X7R 1206 chip PART NO. 023-2000-220 510-3606-104 C 125 .01 µF ±10% X7R 1206 chip 510-3606-103 C 126 .018 µF ±10% X7R 0805 chip 510-3605-183 HW001 6-32 ss pem fastener...
  • Page 130 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 086 270k ohm ±5% 1206 SMD P 101 Banana plug panel mount 108-0753-001 569-0115-274 R 087 1k ohm ±1% 1206 SMD P 102 Banana plug panel mount 108-0753-001 569-0111-301 R 088 1k ohm ±1% 1206 SMD...

  • Page 131: Repeater Rx/Ex Module

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 137 22k ohm ±5% 1206 SMD R 185 22k ohm ±5% 1206 SMD 569-0115-223 569-0115-223 R 138 22k ohm ±5% 1206 SMD R 186 10k ohm ±5% 1206 SMD 569-0115-223 569-0115-103 R 139 10k ohm ±5% 1206 SMD...

  • Page 132: 25 Khz Receiver

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER PA002 Transceiver mechanical 023-2000-205 R 109 560 ohm 1/8W chip ERJ-6GMYJ561 PA004 132-150 MHz Receiver 585-2061-270 R 110 100 ohm 1/8W chip ERJ-6GMYJ101 150-178 MHz Receiver 585-2081-270 R 112 3.3k ohm 1/8W chip ERJ-6GMYJ332 PA005 132-150 MHz Exciter 585-2061-400...
  • Page 133 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 161 4.7 µF 20V tantalum chip SVC1D475M C 252 4 pF 50V ceramic chip GRM40CH040C50 C 162 10 pF 50V ceramic chip GRM40CH100C50 C 253 .01 µF 50V ceramic chip GRM40B103K50 C 163 15 pF 50V ceramic chip GRM40CH150J50...
  • Page 134 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 404 820 pF 50V ceramic chip GRM40B821K50 CV102 Variable capacitor ECV-1ZW04X53T C 405 100 pF 50V ceramic chip GRM40CH101K50 CV103 Variable capacitor ECV-1ZW04X53T C 406 .01 µF 50V ceramic chip GRM40B103K50 CV104 Variable capacitor ECV-1ZW04X53T...
  • Page 135 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER L 401 .1 µH SMD KQ1008TER10K R 148 330 ohm 1/8W chip ERJ-6GMYJ331 L 402 1 µH SMD ELJ-FC1ROM R 149 18 ohm 1/8W chip ERJ-6GMYJ180 L 403 .1 µH SMD KQ1008TER10K R 150 270 ohm 1/8W chip ERJ-6GMYJ271...

  • Page 136: Transmit Vco

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 259 1k ohm 1/8W chip ERJ-6GMYJ102 U 101 Mixer LRMS-1H R 260 270 ohm 1/8W chip ERJ-6GMYJ271 U 102 IC Op Amp NJM 2904M R 261 10 ohm 1/8W chip ERJ-6GMYJ100 U 103 MMIC ERA 5SM...

  • Page 137: Exciter

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 118 1000 pF 50V ceramic chip GRM40B102K50 C 429 470 pF 50V ceramic chip GRM40CH471K50 C 431 220 pF 50V ceramic chip GRM40CH221K50 D 101 Detector HVU202A C 432 47 pF 50V ceramic chip GRM40CH470K50 D 102 Detector HVU202A...
  • Page 138 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 517 5 pF 50V ceramic chip GRM40CH050C50 R 419 12k ohm 1/8W chip ERJ-6GMYJ123 C 518 4.7 µF 20V tantalum chip SVC1D475M R 422 100 ohm 1/8W chip ERJ-6GMYJ101 C 519 1 µF 50V poly ester film 553M5002-105K...

  • Page 139: Power Amplifier

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 486 12k ohm 1/8W chip ERJ-6GMYJ123 C 527 .1 µF ceramic chip GRM40B104K25PT R 489 330 ohm 1/8W chip ERJ-6GMYJ331 C 529 .001 µF ceramic chip GRM40B102K50PT R 494 100k ohm 1/8W chip ERJ-6GMYJ104 C 532 .001 µF ceramic chip...
  • Page 140 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 581 .001 µF ceramic chip GRM50B102K50PT R 511 200 ohm chip TDR6G-201-J C 582 .01 µF ceramic chip GRM40B103K50PT R 512 2k ohm chip TDR6G-202-J C 583 .01 µF ceramic chip GRM40B103K50PT R 513 2k ohm chip TDR6G-202-J...

  • Page 141: Low-Pass Filter

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER LOW-PASS FILTER L 652 8T PART NO. 023-2004-600 L 653 8T L 654 8T A 620 Low pass filter assembly 023-2004-620 R 601 51 ohm 1/8W chip ERJ-6GMYJ510 MP600 LPF mounting plate 017-2222-264 R 603 150 ohm 1/8W chip...

  • Page 142: Power Supply Main Board

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER HW251 6-32 panhead philips ZPS 575-1606-008 C 115 .1 µF ±10% X7R 1206 510-3609-104 HW253 6-32 panhead philips ZPS 575-1606-012 C 116 .1 µF ±10% X7R 1206 510-3609-104 HW254 1/8"...
  • Page 143 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 168 .01 µF ±5% X7R 1206 510-3609-103 C 222 .1 µF ±5% X7R 1206 510-3609-104 C 169 1500 µF 35V aluminum 510-4075-152 C 223 .1 µF ±5% X7R 1206 510-3609-104 C 170 .01 µF ±5% X7R 1206...
  • Page 144 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER CR136 3A ultra-fast diode 523-1507-004 L 102 20 µH 8A DC inductor 542-5010-006 CR137 Switching diode SOT-23 523-1504-002 L 103 7.5 µH 8A DC inductor 542-5010-008 CR138 Switching diode SOT-23 523-1504-002 L 104 10 µH 5A DC inductor...
  • Page 145 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 103 240k ohm ±5% 1206 SMD 569-0115-244 R 152 4.7k ohm ±5% 1206 SMD 569-0115-472 R 104 100k ohm ±5% 1206 SMD 569-0115-104 R 153 100 ohm ±5% 1206 SMD 569-0115-101 R 105 330k ohm ±5% 1206 SMD...
  • Page 146 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 200 18 ohm ±5% 1206 SMD 569-0115-180 R 249 3.4k ohm ±1% 1206 SMD 569-0111-352 R 201 180 ohm ±5% 1206 SMD 569-0115-181 R 250 2.49k ohm ±1% 1206 SMD 569-0111-339 R 202 20k ohm ±5% 1206 SMD...

  • Page 147: Ac Filter Board

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER RT101 8A 2.5 ohm NTC thermistor 569-3014-001 FH001 Fuse clip 534-1007-001 RT102 8A 2.5 ohm NTC thermistor 569-3014-001 HW001 #10 shakeproof washer 596-1110-012 HW002 4-40 machine panhead ZPS 575-1604-016 T 101 0.5 line freq.
  • Page 148 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 119 220 µF 25V aluminum radial 510-4225-221 K 101 Single pole 24V relay 567-0031-001 C 124 1 µF 35V tantalum SMD 510-2628-109 C 125 .1 µF ±5% X7R 1206 510-3609-104 L 101 70 µH 3A Toroid inductor...

  • Page 149: Thermal Sensor Board

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 130 33k ohm ±5% 1206 SMD 569-0115-333 THERMAL SENSOR BOARD R 136 3.3k ohm ±5% 2512 SMD 569-0175-332 PART NO. 023-2000-840 R 137 3.3k ohm ±5% 2512 SMD 569-0175-332 R 138 240 ohm ±5% 2512 SMD...
  • Page 150 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 031 .01 µF ±10% X7R chip R 011 1.2k ohm ±5% 1/4W CF 510-3606-103 569-0115-122 C 032 .01 µF ±10% X7R chip R 012 10k ohm ±5% 1206 SMD 510-3606-103 569-0115-103 R 013 150 ohm ±5% 1206 SMD...

  • Page 151: Main Audio Card

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER 100 pF ±5% NPO 1206 chip U 019 Triple line receiver 544-2023-003 C 115 510-3602-101 .001 µF ±5% NPO 1206 U 020 Quad 2-input NAND 74HC00 544-3766-000 C 116 510-3602-102 .01 µF ±5% X7R 1206 U 021 7-stage binary cntr SOIC 4024 544-3016-024...
  • Page 152 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER 20 pF ±5% NPO 1206 chip .01 µF ±10% X7R chip C 163 510-3602-200 C 212 510-3606-103 .001 µF ±2% NPO 1206 .01 µF ±10% X7R chip C 164 510-3616-102 C 213 510-3606-103...
  • Page 153 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER 47 µF 10V tantalum SMD C 270 510-2624-470 CR112 2.4V 1W zener 523-2505-249 .01 µF ±10% X7R chip C 271 510-3606-103 CR113 15V zener SOT-23 523-2016-150 .01 µF ±10% X7R chip C 272 510-3606-103 CR114 15V zener SOT-23...
  • Page 154 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER 47k ohm ±5% 1206 SMD 100k ohm ±5% 1206 SMD R 112 569-0115-473 R 163 569-0115-104 150k ohm ±5% 1206 SMD 100k ohm ±5% 1206 SMD R 113 569-0115-154 R 164 569-0115-104...
  • Page 155 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER 10k ohm ±5% 1206 SMD 2.2k ohm ±5% 1206 SMD R 210 569-0115-103 R 262 569-0115-222 100 ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD R 211 569-0115-101 R 263 569-0115-103...

  • Page 156: Interface Alarm Card

    PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER Zero ohm ±10% 1206 SMD R 313 569-0115-001 U 130 Dual op amp SOIC LM2904 544-2019-004 43.2k ohm ±1% 1206 SMD R 314 569-0111-462 U 131 Quad op amp SOIC MC3404 544-2020-008 86.6k ohm ±1% 1206 SMD R 315 569-0111-491...
  • Page 157 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER C 509 1 µF 16V tantalum SMD 510-2625-109 CR523 Green LED submin radial 549-4001-122 C 510 33 µF 10V tantalum SMD 510-2624-330 CR524 Green LED submin radial 549-4001-122 C 511 .01 µF ±10% X7R chip 510-3606-103 CR525 Green LED submin radial...
  • Page 158 PARTS LIST SYMBOL PART SYMBOL PART NUMBER DESCRIPTION NUMBER NUMBER DESCRIPTION NUMBER R 544 1k ohm ±5% 1206 SMD Q 503 Si NPN SOT-23 2N3904 576-0003-658 569-0115-102 R 545 10k ohm ±5% 1206 SMD Q 504 NPN dig SOT-23F RN1404 576-0003-616 569-0115-103 R 546 430 ohm ±5% 1/4W CF...
  • Page 159 PARTS LIST SYMBOL PART NUMBER DESCRIPTION NUMBER U 508 Hex open drain buffer SO-14 544-3716-906 U 509 Quad op amp SOIC 544-2020-008 U 510 NPN out opto isolator 4N35 544-2010-001 U 511 NPN out opto isolator 4N35 544-2010-001 U 512 NPN out opto isolator 4N35 544-2010-001 U 513 Bilateral switch SOIC 4066B 544-3016-066...
  • Page 160 PARTS LIST August 2000 Part No. 001-2001-200 9-34...

  • Page 161: Schematics And Component Layouts

    SECTION 10 SCHEMATICS AND COMPONENT LAYOUTS TRANSISTORS IDENTIFICATION PART NUMBER BASING NUMBER 576-0001-300 VIEW VIEW 576-0002-603 576-0003-600 R2/R3 576-0003-602 3604 576-0003-604 576-0003-612 576-0003-636 576-0003-657 576-0003-658 576-0004-098 576-0004-820 576-0004-821 VIEW VIEW 576-0006-109 VIEW DIODES 523-1504-002 523-1504-012 523-1504-015 523-1504-016 523-1504-023 523-2016-180 523-2016-479 8E/Z1 VIEW FIGURE 10-1 RF MODULE INTERFACE CONNECTOR...

  • Page 162: Repeater Rear View

    REPEATER REAR VIEW FIGURE 10-3 RFIB EXCITER/RECEIVER REPEATER CABINET FIGURE 10-5 REPEATER FRONT VIEW FIGURE 10-4 August 2000 10-2 Part No. 001-2001-200...
  • Page 163 RF INTERFACE REAR CONNECTOR BOARD BACKPLANE (023-2008-110) BACKPLANE A9 FWD/REV PWR DETECT P3-P5-P7-P12 P14-P16-P18 J101 PWR OUT W115 W655 24 HSDB+ +15V WO 655 ISOLATOR WO 652 W126 W656 56 HSDB- RF MUX 3 INH 14 RF MUX 3 INH REFLECTED POWER WO 656 R685...

  • Page 164: Backplane Interconnect

    44 12 40 8 P3-P5-P7-P12-P14-P16-P18 P3-P5-P7-P12-P14-P16-P18 IAC SLOT 33 A18 +15V +15V FILT WO 13 34 A16 HSDB+ 6 HSDB- 5 35 A14 IRDB+ 4 IRDB- 3 36 A12 TLA+ 2 11 D7 TLA- 1 43 D6 12 D5 44 D4 13 D3 45 D2 14 D1...
  • Page 165 +12V DC +12V DC WO 103 WO 103 C116 C118 R112 R112 1000pF 1000pF 3.3k Q104 Q104 2SC2712 2SC2712 C118 + C120 22[F 22[F R108 L104 C115 C114 R109 L104 0.1[F 1000pF 15pF C117 0.1[F C116 WO102 1000pF 15pF WO102 RF OUTPUT RF OUTPUT C117...

  • Page 166: Rf Interface Board Component Layout

    Q107 CR104 U108 C128 R178 R171 R180 R169 R179 R177 J103 J102 WO135 R193 R176 WO117 GROUND WO133 R175 C114 + WO110 WO111 R174 WO131 C119 WO129 U105 U104 U110 R198 WO113 WO112 R147 R199 WO105 F102 R148 Q103 L101 U101 WO104 WO106...

  • Page 167: Rf Interface Board Schematic

    R137 R119 J101 PC STR 2 R104 F102 +26V P102 +26V IN SOURCE L101 270k WO143 R138 R120 R135 R121 +26V P101 +26V IN + C117 C110 +15V 1000 R122 WO145 R136 R123 P104 GROUND R112 Q104 R103 P105 GROUND R111 270k 3657...

  • Page 168: Receiver Component Layout

    J201 C304 C449 C306 C308 + TP201 TP202 TP101 C444 C302 + + C303 + C448 J205 J204 R433 C316 + U304 R434 + C414 C315 R401 + C309 R404 L401 R449 + C402 C403 C446 Q408 Q407 C404 C433 C310 R246 R441...

  • Page 169: Receiver Schematic

    +12V C208 C209 R204 C207 .001 +12V 25 kHz IF SECTION R201 IF AMP 52.95 MHz 1.8k + C107 C108 C201 4-POLE C206 52.95 MHz 470pF CRYSTAL FILTER 10pF 10pF Z201A Z201B R107 R108 Q201 C210 4-POLE C276 C218 2SC2351 CRYSTAL FILTER C202 C205...

  • Page 170: Exciter Component Layout

    L414 L408 C510 L412 C446 R460 C498 L410 C506 C500 R477 C508 R476 C461 R464 R463 L409 R465 R475 R480 R462 L406 R458 C442 Q410 C481 + C444 R468 Q411 C457 C480 C496 + C501 C463 + J402 R467 C471 C502 C433 C441...

  • Page 171: Exciter Schematic

    SOURCE SOURCE U406 LM7L12ACM V IN V OUT SOURCE R416 C409 C471 + C472 + C474 C475 C456 C515 R419 GROUND +3.5 .001 .001 100pF J401 C410 + C426 + C428 CR401 R429 WO 423 9.1V WO 429 R427 RV101 R426 SOURCE R414...

  • Page 172: Power Amplifier Component Layout

    Q502 WO513 L506 C602 C598 C599 L507 Q503 WO524 WO514 WO523 WO515 WO516 WO517 110W POWER AMPLIFIER COMPONENT LAYOUT FIGURE 10-17 August 2000 10-12 Part No. 001-2001-200...

  • Page 173: Power Amplifier Schematic

    +6.2 U508 R539 V IN V OUT WO 509 C577 + C576 TEMP SENSOR C592 C575 U507 39pF C579 LM35D R538 NC 7 NC 2 301k R536 NC 6 NC 3 R537 C578 5 NC 5 100k .001 NC 4 WO 504 +15V DRIVER...
  • Page 174 R668 R603 L654 R610 L602 C606 R609 RV601 C667 L653 D651 U601 R607 L652 R656 C601 C651 C663 D601 U651 C609 R613 R660 R601 R614 C607 C612 R604 C613 U652 C610 R615 C657 C662 C611 RV602 L603 R664 FWD PWR SENSE C659 R663...

  • Page 175: Forward/Reverse Power Schematic

    RF OUT WO 601 WO 602 WO 651 REFLECTIVE POWER LOAD RF POWER IN CIRCULATOR R668 DANGER L654 250W BERYLLIUM PRODUCT. INHALATION OF DUST OR FUMES MAY CAUSE SERIOUS CHRONIC LUNG DISEASE. SEE MATERIAL SAFETY SHEETS FOR FURHTER DETAILS. C613 C666 R601 R603...

  • Page 176: Main Processor Card Component Layout

    MAIN PROCESSOR CARD COMPONENT LAYOUT FIGURE 10-21 January 2000 10-16 Part No. 001-2001-300...
  • Page 177 MAIN MICROPROCESSOR FLASH MEMORY EPROM +15V A0 42 U15F 2.2k OPERATIONAL A1 10 BLINKING A2 41 U15E 2.2k ON = HIGH POWER 60L256 28F001BX OFF = LOW POWER A4 40 UPD70320 U15D 2.2k ON = LTR OFF = MULTI-NET A6 39 U15C 2.2k ALARM...
  • Page 178 74HC32 U4-14 (1) U20D MSTB P1-16 (1) U4-15 (1) V25 DATA BUS (7:0) RX FIFO TX FIFO U27-67 (1) 74HC7030 U27-11 (1) 74HC7030 LOWER ADDRESS LATCH U27-68 (1) 2 D0 74HC573 25 DOR C EN HSDB MICROPROCESSOR EPROM P3-8 P3-7 +12V 2 P1-1 11 IO0...
  • Page 179 C179 R248 C235+ R298 R179 R180 R256 C193 C224 R282 R286 R177 R211 C266 C264 R317 R210 + C255 R207 C194 R208 R258 C188 R298 R314 R209 R267 R264 C209 C218 C223 RT100 C213 R118 R225 C210 C265 R114 R117 C117 R214 R295...
  • Page 180 R278 R318 CR111 R282 CR112 C196 R221 C273 R202 C141 C195 R204 R201 U100 R232 R157 R174 R274 C150 R176 R287 U126 R158 R168 R156 C146 R173 R165 C215 C142 U129 R167 R162 C165 C182 C136 C201 R320 R271 C267 + C198 R212 R213...

  • Page 181: Main Audio Card Schematic (1 Of 3)

    U115A-1 (2) VOTER AUDIO MUTE GATE U108 74HC573 U114D-16 (2) LOCAL AUDIO MUTE GATE U113C-9 (2) RX MUTE GATE U114A-1 (2) RX OPTION GATE ADDRESS LATCH U115B-8 (2) RX VOICE GATE U116B-8 (2) RX AUDIO GATE U133 U115C-9 (2) RX VOICE TO BACKPLANE 74HC574 Q8 12 U116A-1 (2) FSK TO AUDIO GATE...

  • Page 182: Main Audio Card Schematic (2 Of 3)

    + C295 U114D + C251 LOCAL AUDIO C254 LOCAL AUDIO R254 ON/OFF/ AMPLIFIER LOCAL AUDIO MUTE GATE C286 OUTPUT R291 C285 J104 R236 EXTERNAL C235 R249 R248 R233 SPEAKER P100 120k 100k U132 R292 R290 VOTER AUDIO 25 U108-18 (1) TDA2003 J101 U108-19 (1)
  • Page 183 OPTION C112 HIGH-PASS FILTER > 300 Hz C117 C121 .022 .022 .022 WO 101 WO102 LOW -PASS FILTER < 3 kHz NARROW BAND DE-EMPHASIS AUDIO ADJ C104 R106 R107 R108 C113 C118 C122 R116 C123 820pF 100k 390k .0022 .0068 .022 18.2k +15V...
  • Page 184 Q505 Q504 R551 R512 U521 R563 CR528 R575 U522 U518 C506 U519 J505 R505 C526 U508 R554 R568 R543 U501 R510 U506 U518 CR522 CR510 CR511 U500 U509 U507 U518 C503 R573 R574 C528 U518 R571 R528 R541 R553 R567 U503 C506 Q502...
  • Page 185 P500 P500 D0 46 R536 ALARM 1 IN + D1 14 CR507 S500 R502 430 D2 45 P501 ADDRESS LATCH R541 200 D3 13 R520 CR503 12 RF MUX 1 INH +15V U508B 2.7k U505 D4 44 13 RF MUX 2 INH 74HC574 U501 U518...

  • Page 186: Backplane Component Layout (Card Side)

    1 33 1 33 1 33 1 33 1 33 1 33 1 33 1 33 32 64 32 64 32 64 32 64 32 64 32 64 32 64 32 64 1 17 1 17 1 17 1 17 1 17 1 17 1 17...
  • Page 187 25 26 WO16 WO17 WO4 WO1 WO13 WO5 WO8 33 34 33 34 BACKPLANE COMPONENT LAYOUT (CABLE SIDE) FOLDOUT August 2000 FIGURE 10-32 10-27 Part No. 001-2001-200...

  • Page 188: Backplane Schematic

    IAC SLOT P3, P5, P7, P12, P14, P16, P18 ALARM 1 IN + ALARM 1 IN - ALARM 2 IN + ALARM 2 IN - ALARM 3 IN + ALARM 3 IN - ALARM 4 IN + ALARM 4 IN - SQUELCH ENABLE IAC 41 EXT REQ 2...
  • Page 189 R216 C213 C214 Q126 Q102 U120 R249 R250 C191 R280 R211 R255 R222 C235 U119 R279 R246 R215 R235 R198 C171 R239 R236 R217 R199 R189 R237 R200 CR130 U121 C170 R210 R242 CR124 R205 R238 R243 R209 R206 R201 U122 R276 CR125...
  • Page 190 CR129 RT101 RT102 CR135 C165 C188 EP105 W113 W111 C166 R254 W109 EP101 R216 C187 C209 W115 C169 T108 T109 L105 L107 C163 C186 T101 CR132 CR126 Q132 U114 Q125 U111 C205 EP103 C101 R113 EP104 C106 J102 R114 J101 Q116 Q101 Q118...
  • Page 191 18,19,20 PRE-CONTROLLER 16,17 +15V 14,15 POWER FACTOR CHOKE R117 L107 12,13 + C105 C104 CR145 R128 +400V CR106 T105 CR112 9,10 EP108 150V DC R116 + C106 + C107 + C110 + C111 R311 R121 IN RUSH CURRENT CR105 BATTERY BACKUP 1500 1500 100k...
  • Page 192 +15V BUCK CONTOLLER I REF U112 R233 R234 C182 470pF 3.3k V REF R228 C173 R220 5 R T R223 EA OUT L103 C175 WO 115 HIGH CURRENT OUT C173 + C165 + C166 C170 WO 107 8 S S C167 R215 + C169...
  • Page 193 1.8uH 8.67nH AC HOT WO1 AC HOT .0022 WO5 POS OUT EARTH GROUND .0022 NEUTRAL WO3 NEUTRAL CHASSIS WO4 NEG GROUND GRN/YEL WO2 CHASSIS GND AC FILTER BOARD FOLDOUT August 2000 FIGURE 10-38 10-33 Part No. 001-2001-200...
  • Page 194 C131 CR101 C132 C155 C114 R101 C130 W106 C129 E C B W103 R143 Q105 F101 R157 R158 CR118 C107 EP102 C105 Q111 W102 K101 MH107 C126 R111 C101 CR113 R165 EP101 R104 L101 R103 R105 R138 CR102 C119 R139 R106 EP103 R140...
  • Page 195 BATTERY +24V F101 +26V HIGH CURRENT INPUT RECTIFIER FILTER TRACE (30A) PROTECTION ON/OFF C101 R111 REGULATOR Q104 CR109 CR116 +24V L101 2021 BATTERY CHARGER +67V U107 BATTERY OUTPUT V OUT (2.2A MAX) LM317M + C105 + C119 C106 C109 + C110 + C111 Q105 R136...

  • Page 196: Power Cable Connector And Schematic

    P103 FROM FROM P105 POWER HARNESS +26.5V FROM P102 GROUND RFIB P101 +15V P104 POWER FILTER BOARD COMPONENT LAYOUT BACKPLANE FIGURE 10-41 AC FAIL IN POWER SWITCH THERMAL SENSOR +15V IN +15V OUT WO20 EP20 WO20A +15V IN +15V OUT +15V REPEATER 2200...
  • Page 198 Part Number 001-2001-200 8-00mwp Printed in U.S.A.

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