Service manual

ManualsBrandsViking ManualsComputer equipmentVX 900 MHz LTR

1-1

October 1995

Part No. 001-2008-202

VIKING

900 MHz LTR

75W-160W Repeater

Part No. 242-2009-232/234

Second Printing

October 1999

Supersedes 001-2009-200

Part No. 001-2009-201 10-99mwp Printed in U.S.A.

Summary of content (234 pages)

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VIKING® VX 900 MHz LTR® 75W-160W Repeater Part No. 242-2009-232/234 Second Printing October 1999 Supersedes 001-2009-200 Part No. 001-2009-201 10-99mwp 1-1 Printed in U.S.A. October 1995 Part No.
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October 1995 Part No.
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VIKING® VX 900 MHz LTR® REPEATER PART NO. 242-2009-232/234 Copyright 1995 by the E.F. Johnson Company The E.F. Johnson Company designs and manufactures two-way radio equipment to serve a wide variety of communications needs. Johnson produces equipment for the mobile telephone and land mobile radio services which include business, industrial, government, public safety, and personal users.
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October 1995 Part No.
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TABLE OF CONTENTS 1 INTRODUCTION AND OPERATION 1.1 1.2 1.3 1.4 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REPEATER IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MODEL NUMBER BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 3 SOFTWARE 3.1 3.4 3.5 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 HOW TO USE THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 5 REPEATER PROGRAMMING 5.1 5.2 CREATING A NEW FILE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 SELECT REPEATER TO EDIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 ADDING A REPEATER TO A FILE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 160W POWER AMPLIFIER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17 GAIN BLOCK (Q501 AND U501) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17 DRIVER (Q502) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 6.13 TRANSMIT AUDIO PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRANSMIT DATA AND CWID PROCESSING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P101 SIGNALING CONNECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P100 EXTERNAL OUTPUTS. . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) REPEATER SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRANSMITTER TEST/ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RECEIVER TESTS/ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RECEIVER EXPANDER MEASUREMENT . . . . . . . .
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TABLE OF CONTENTS (CONT.) 75W POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160W POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FORWARD/REVERSE POWER DETECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 MHZ 75W PA MECHANICAL . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 4-9 4-10 4-11 4-12 4-13 4-14 4-15 4-16 4-17 4-18 4-19 4-20 4-21 4-22 4-23 4-24 4-25 4-26 4-27 4-28 4-29 5-1 6-1 6-2 6-3 6-4 6-5 6-6 6-7 6-8 6-9 6-10 6-11 6-12 6-13 6-14 6-15 6-16 6-17 6-18 6-19 6-20 6-21 6-22 6-23 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 OUTPUT ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 ALARM CROSS REFERENCE. . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 7-10 7-11 7-12 7-13 7-14 7-15 7-16 7-17 7-18 8-1 8-2 8-3 8-4 8-5 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 10-10 10-11 10-12 10-13 10-14 10-15 10-16 10-17 10-18 10-19 10-20 10-21 10-22 10-23 10-24 10-25 10-26 10-27 10-28 10-29 10-30 10-31 10-32 10-33 10-34 10-35 10-36 10-37 10-38 10-39 10-40 EXCITER TEST SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT.) 10-41 10-42 10-43 10-44 10-45 10-46 10-47 10-48 10-49 10-50 10-51 10-52 10-53 10-54 BACKPLANE COMPONENT LAYOUT (CARD SIDE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BACKPLANE COMPONENT LAYOUT (CABLE SIDE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BACKPLANE SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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INTRODUCTION AND OPERATION SECTION 1 INTRODUCTION AND OPERATION 1.1 SCOPE OF MANUAL This repeater is modular in design for ease of service. There are separate assemblies for the logic cards, receiver, exciter, power amplifier and power supply sections. This service manual provides installation, operation, programming, service, and alignment information for the VIKING VX LTR Repeater, Part No. 2422009-232/234.
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INTRODUCTION AND OPERATION 2000 Series Service Kit - This kit contains an alarm wire harness, extender power cable, programming kit, extender card, extender harness, and a TIC bias cable. These items are used when tuning the repeater and while troubleshooting. rier simultaneously with voice modulation. Therefore, no dedicated control channel is required and all channels are used for voice communications for maximum system efficiency.
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INTRODUCTION AND OPERATION Extender Card- Used to extend the cards plugged into the backplane beyond the card rack enclosure when tuning the repeater and while troubleshooting. Table 1-1 VIKING VX REPEATER ACCESSORIES Accessory Extender Cable Kit- These are seven foot extension cables for the RF Transceiver power and data, when the transceiver is removed from the cabinet. Part No.
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INTRODUCTION AND OPERATION factory repair facilities. Regular Technical Service hours are 7:30 a.m. - 5:30 p.m. Central Time, Monday - Friday. The Technical Service Department can be reached using one of the following telephone numbers: ever, it is recommended that you contact the Technical Service Department before returning equipment because a service representative may be able to suggest a solution to the problem so that return of the equipment would not be necessary.
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INTRODUCTION AND OPERATION 1.12 REPEATER OPERATION You may also send your order by mail or FAX. The mailing address is as follows and the FAX number is shown in Section 1.2. 1.12.1 MAIN PROCESSOR CARD (MPC) Refer to Figure 1-1. E.F. Johnson Company Service Parts Department 299 Johnson Avenue P.O. Box 1249 Waseca, MN 56093-0514 Programming Jack J1 provides input connection from the computer and the "flash memory" in the MPC.
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INTRODUCTION AND OPERATION Alarms RF Thermal Sense Alarm Condition Exists 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. Refer to Figure 1-2 for an example of this type of alarm.
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INTRODUCTION AND OPERATION 1.12.2 MAIN AUDIO CARD (MAC) Power Supply On/Off Switch S508 turns the power supply DC voltages on and off from the IAC in the front of the repeater. Refer to Figure 1-1. External Speaker Jack Power Indicator J104 provides repeater audio output to an external speaker. The local volume control adjusts the volume level of this speaker. CR501 indicates the +5V supply is at normal level and applied to the IAC. CR524 indicates -5V supply is at normal level and applied to the IAC.
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INTRODUCTION AND OPERATION 1.12.4 POWER SUPPLY the mobiles in the system. Therefore, up to 1250 separate addresses can be assigned in a 5-repeater system and up to 5000 can be assigned in a 20-repeater system. An ID code may be assigned to an individual mobile or a group of mobiles as required. The 2000 Series Repeater Power Supply is a quad output 800W supply with power factor correction.
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INTRODUCTION AND OPERATION 1.14.2 MOBILE DATA MESSAGE ORDER 1.14.3 ID VALIDATOR OPERATION Each repeater monitors all the time slots on the repeater data bus. If it detects its number in another time slot, it begins transmitting an additional data message to its mobiles. This message tells mobiles programmed to detect that ID code to go to that repeater to receive a call. This additional message continues for as long as the mobile is transmitting on the other repeater.
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INTRODUCTION AND OPERATION October 1999 Part No.
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INTRODUCTION AND OPERATION SPECIFICATIONS GENERAL1 Frequency Range Dimensions AC Voltage/Frequency AC Current (at 117V AC) AC Input Power DC Current at 26.5V DC Number of Channels Channel Spacing Channel Resolution Temperature Range Duty Cycle FCC Type Acceptance FCC Compliance 896-901 MHz Receive, 935-940 MHz Transmit 9.125 H x 17" W x 20.9" D 100-240V AC/50-60 Hz 0.40A (Standby), 1.8A (25W), 3.3A (75W), 5.8A (160W) 47W (Standby), 211W (25W), 390W (75W), 680W (160W) 6A (25W), 11A (75W), 22.
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INTRODUCTION AND OPERATION October 1999 Part No.
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INSTALLATION SECTION 2 INSTALLATION 2.1 INTRODUCTION NOTE: If the Repeater is installed in an area that exceeds these environmental conditions, the site should be equipped with air filters to remove dust and dirt that could cause the equipment to overheat. Information in this section tells how to set up the repeater for operation in an LTR system. It is assumed that the repeater has been previously aligned at the factory or as described in the alignment procedure in Section 7. 2.
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INSTALLATION perature sensor connection is also provided. The temperature sensor cable is shown in Figure 2-2. LED indicators are provided to show Reverse Battery connection, Charger On/Off and Battery Fault. repeater or 6A for each 160W repeater and should be protected by a circuit breaker. It is recommended that all of the repeaters in a rack should not be on the same breaker in order to provide one operational repeater in the event a breaker trips.
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INSTALLATION BACKPLANE 1 4 7 2 5 8 3 6 J2 A B C 9 POWER HARNESS +26.5V GROUND TO RFIB +15V 1 J2 2 3 4 A 5 2 4 1 7 3 5 B 8 6 9 10 6 11 7 12 8 9 C 10 11 12 AC FAIL IN POWER SWITCH THERMAL SENSOR N/C +15V N/C N/C +5V -5V 2 1 4 5 3 TO REPEATER BACKPLANE 9 6 8 7 POWER CABLE CONNECTOR AND SCHEMATIC 2.6.
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INSTALLATION Ground each piece of equipment separately. Do not ground one piece of equipment by connecting it to another grounded piece of equipment. X= 1.05 1.09 1.13 1.17 1.20 1.30 A good DC ground must be found or created at the site. Rooftop site grounds can be researched through the building management or architects. Tower site grounds must be made with grounding rods.
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INSTALLATION • Do not run ground wires parallel to any other wiring (e.g. a ground wire parallel to a telephone line), except other ground wires. • Double check all equipment for good ground and that all connections are clean and secure. 2.8 UNPACKING AND INSPECTION TM OCXO 1 OCXO2 E.F. Johnson ships the Repeater securely crated for transportation. When the Repeater arrives, ensure the crates remain upright, especially if storing the crates temporarily.
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INSTALLATION T/R ANTENNA RECEIVER 1 TRANSMITTER 1 DUPLEXER TRANSMITTER 2 RECEIVER 2 RECEIVER 3 RECEIVER MULTICOUPLER TRANSMITTER BANDPASS FILTER TRANSMITTER 3 COMBINER TRANSMITTER 4 RECEIVER 4 PREAMPLIFIER TRANSMITTER 5 RECEIVER 5 Figure 2-4 5-CHANNEL COMBINING SYSTEM 2.9 REPEATER DATA BUS INSTALLATION ONLY VIKING VX REPEATERS The repeaters are interconnected by a balanced line High-Speed Data Bus (HSDB) consisting of a six conductor cable.
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INSTALLATION 2.9.2 MPC DATA BUS JUMPER SETTINGS is usually used. An example of a combining system for a five-channel system is shown in Figure 2-4. The amount of power loss introduced by a combiner depends on the type of combiner used. If it has a loss of 3 dB, power output to the antenna is reduced by half. Refer to Figure 2-6 for crystal selection and HSDB Code selections jumper placement. The jumper on J5, pins 2-3 selects 12 MHz crystal for LTR.
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INSTALLATION 2.11.3 MIXED REPEATER CONNECTION WITH 8900 OCXO DRAWER 2.11 OCXO DRAWER CONNECTIONS 2.11.1 VIKING VX CONNECTION These guidelines should be followed when using 2009 series repeaters with an 8900 OCXO drawer, Part No. 023-8900-300. These guidelines should be followed when using 2009 series repeaters with a 2000 OCXO drawer, Part No. 023-2000-925. 1. The output of the existing Local Oscillator drawer, Part No. 023-8900-300, should be set to provide +10 dBm of reference signal at the 1.
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INSTALLATION 2. If connection to additional 2009 series repeaters is necessary, additional 8-Way Splitter Shelves, Part No. 023-2000-924, are added as required. INPUT OUTPUT 3dB J9 J10 6dB J7 J8 10dB J5 J6 10dB J3 J4 OUTPUT 3dB J9 J10 6dB J7 J8 10dB J5 J6 10dB 3dB J9 J10 OUTPUT 6dB 10dB J5 J6 J7 J8 10dB J1 J2 20dB 23 dB ATTENUATION ATTENUATOR INPUT J3 J4 20dB INPUT This attenuator assembly should be adjusted to provide 1 to 1.
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INSTALLATION SERIES 2000 OCXO DRAWER (023-2000-925) 1.25 MHz OUTPUTS 8-WAY SPLITTER SHELF (023-2000-924) 1.25 MHz INPUT 1.
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INSTALLATION SERIES 2000 OCXO DRAWER (023-2000-925) 1.
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INSTALLATION 8-WAY SPLITTER SHELF (023-2000-924) 1.25 MHz 1.
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INSTALLATION 8-WAY SPLITTER SHELF (023-2000-924) ATTENUATOR KIT 1.25 MHz OUTPUTS (023-2000-923) SERIES 2000 OCXO DRAWER (023-2000-925) 1.25 MHz OUTPUTS 1.
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INSTALLATION October 1999 Part No.
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SOFTWARE SECTION 3 SOFTWARE 3.1 INTRODUCTION Follow the computer instructions for loading the disk. The MS-DOS Revision 2.0 or later operating system is needed to run the programs. The computer needs to have RS-232C capability, for example, the Serial Card in slot "COM1" or "COM2". The Johnson 2000 Repeater Program on 3.5 inch disk, Part No. 023-9998-297, uses an IBM personal computer to program the EEPROM Memory in the Main Processor Card (MPC).
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SOFTWARE 3.1.5 COMMAND LINE OPTIONS 3.1.6 COLOR OR MONOCHROME OPERATION HELP The programming software utilizes color for a color monitor and video card. However, with LCDtype displays, this may make some information hard to read because the contrast is poor. To improve contrast, a monochrome mode can be selected in the display mode from Utilities heading. To show all options available from the command line type: /h or /?. Either ’/’ or ’-’ can be used.
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SOFTWARE are also being loaded into conventional memory. Contact Customer Service for information on how these programs can be moved or disabled to make more space available. To make a programming disk, format a blank disk using FORMAT B: or FORMAT B: /S (use "/S" if it must be a bootable disk). Then copy the required program file or files to the programming disk. To do this, type COPY A:(filename.ext) B:(filename.ext). For example, to copy the file 2000pgm2.exe from drive A to drive B, type 3.
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SOFTWARE Refer to Section 7 for Alignment Procedures as shown in the program, alignment points diagrams and test setup diagrams. 3.5 HELP F1 Help screens are available for most parameters and options in this program. Whenever a parameter or options clarification is needed, press F1 and if a help screen is available it will pop-up on the screen. Press Escape to exit the pop-up screen.
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PULL DOWN MENUS SECTION 4 PULL DOWN MENUS 4.1 MENU DISPLAYS Load File The menus available are listed at the top of the screen. Move the cursor with the arrow keys to highlight the menu name. Press Enter to view the menu and the arrow keys to scroll through the menu. Call up the highlighted selection by pressing Enter. Dir c:\example\file\load File *.qx file1.qx ..\ tmp\ 4.
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PULL DOWN MENUS Repeater Number Channel Number TELCO Network Type Area Stand-alone CWID Time CWID Message Local Mic ID Test Mode ID Paging RF Power Level Power Source Data Modem EDIT Setup Parameters F4 Select Repeater Alarm Configuration Repeater Type Delete Repeater Telephone Access Parameters Telephone Interface TIC Calibration Data Default Repeater Number Input Alarms Output Alarms Cross Reference Input Type Selection Output Type Selection Alarm Cross Reference Selection Multi-Net LTR Universal Sta
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PULL DOWN MENUS This menu is used to create new files and set or change the repeater operating parameters. The filename for the repeaters in this file is shown in the lower left corner of the screen. CWID TIME 4.3.1 SETUP PARAMETERS CWID MESSAGE First see Section 4.3.4 to select repeater type to setup LTR Parameters. This menu programs the repeater parameters and options of each repeater at a site.
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PULL DOWN MENUS DATA MODEM If the input is disabled, the input alarm line is inactive. When energized and current flow is detected, the alarm is activated. When de-energized and no current flow is detected, the alarm is activated. Analog inputs provide a detection of an analog input out of limit condition. Select the Low and High Limit pair to trip an Analog Input Alarm. The High Limit must be greater in value than the Low Limit (0.0V-5.0V in 0.1V steps).
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PULL DOWN MENUS ALARM DESCRIPTION 4.3.4 REPEATER TYPE This is a text string (up to 15 characters) to describe the alarm. This test string is sent via Morse code if the alarm input is programmed with a Tx ID and an output is selected in the cross reference menu (see Figure 4-10). This screen (see Figure 4-11) selects the repeater type (LTR signaling protocol and features): Frequency Band 800 MHz 800 MHz [- 12.
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PULL DOWN MENUS 4.4.1 WRITE SETUP PARAMETERS 4.4.2 READ SETUP PARAMETERS This command sends the contents of a file to the repeater and programs the EEPROM memory in the Main Processor Card (MPC). This command reads the contents of the EEPROM memory of a repeater and loads it into a buffer. The contents of the buffer is then displayed to show the programming of the repeater.
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PULL DOWN MENUS 4.5 HARDWARE between the repeater and the destination user (mobile) and the data content of the repeater transmit data stream. The message contains data received from the destination and data sent to the mobile by the repeater. The repeater receives the destination’s: Unique ID, Home Repeater Number, Group ID, Priority, Status and Time Stamp.
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PULL DOWN MENUS 4.5.
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PULL DOWN MENUS Frequency Adjust Power Output Adjust TEST PA Receiver Exciter Full Rptr/Station All Test Repeater Setup Transmitter Tests Receiver Tests Transmit Audio/Data Voter Audio Adjust Audio/Data Adjust Repeater Operation 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 Expander Check (900 MHz) All Transmit Tests Audio Deviation Limit Repeat Audio Level Data Leve
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PULL DOWN MENUS 4.6 TEST File Edit Transfer Hardware Test Utilities File Edit Transfer Hardware Test Utilities PA Receiver Exciter Full Rptr/Station RNT Interface Telephone Interface VNC Interface COM Port Display Mode Alarm Display User Level Figure 4-26 UTILITIES MENU Figure 4-25 TEST MENU 4.6.1 POWER AMPLIFIER 4.7.1 COM PORT This menu selection walks through the alignment of the Power Amplifier and RF Interface Board on the computer screen. Refer to Sections 7.4 and 7.
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PULL DOWN MENUS 4.7.2 DISPLAY MODE This screen allows the color mode to be selected for color monitors. When using a laptop, monochrome is recommended for better resolution. Select Color Mode Desired ( ) Color ( ) Monochrome Spacebar to Select Figure 4-29 COLOR MODE SELECTION 4.7.3 USER LEVEL There are two levels to choose from, Novice and Advanced. The Novice uses prompts in the EditParameters screens when Escape or F2 keys are pressed that ask "are you sure" before the task is executed.
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PULL DOWN MENUS October 1999 Part No.
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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 programming for a new file created for Site 1. 14.The file consists of default and repeater one under the filename of site1.dat. NOTE: At any point in the programming sequence, if F1 is selected, a help screen appears to explain the menu selection highlighted at that point. 5.
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REPEATER PROGRAMMING Table 5-1 REPEATER SETUP PARAMETERS Parameter Repeater Number 1-20 Channel Number 1-399 Telco Network Type None FSK RS232 FSK Blank & Burst TIC VNC 0, 1 Yes, No Yes, No Area Sync Repeater Stand Alone ID Validator CWID Time CWID Message Local MIC ID Test Mode ID RF Power Level Power Source Paging Data Modem October 1999 Part No.
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REPEATER PROGRAMMING File Edit Transfer Hardware Test Utilities - Help 09:17:09 LTR Repeater Setup Parameters Edit Repeater Number: 1 Channel Number: 100 Telco Network Type: TIC Area: 0 Sync Repeater: No Stand Alone: Yes ID Validator: N/A CWID Time: CWID Message: Local MIC ID: Test Mode ID: RF Power Level: 75 Power Source: AC Paging: 253 254 No Data Modem: 30 EXAMPLE No Press F2 to Accept Repeater Home (1-20) Rptr: 1 Norm Rptr 15 Chan: 100 State: Disabled HSDB: Self 160W
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REPEATER PROGRAMMING October 1999 Part No.
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CIRCUIT DESCRIPTION SECTION 6 CIRCUIT DESCRIPTION 6.1 RECEIVER filtering of the receive signal is provided by 3-pole helical filter L204-L206. A section of microstrip on the collector of Q201 and C205/C207 match the impedance from Q201 to the 3-pole helical filter L204-L206. 6.1.1 INTRODUCTION The receiver provides high sensitivity and selectivity reception on any one of the 399 channels in the 896 to 901 MHz band. 6.1.
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CIRCUIT DESCRIPTION BANDPASS FILTER A201 RECEIVE RF IN BANDPASS FILTER RF AMP L201/L202/L203 Q201 MIXER U201 L204/L205/L206 52.95 MHz 4-POLE 52.95 MHz 52.95 MHz 4-POLE CRYSTAL FILTER IF AMP CRYSTAL FILTER Q202 Z201/Z202 Z203/Z204 843-848 MHz OCXO IN HIGH STABILITY SYNTHESIZER HS CS RX EN HS LK RX LD REF IN U205 FIN CLK Q203 RF CLK BUFFER Q210 Q211 17.
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CIRCUIT DESCRIPTION The phase detector input signals are generated by counters in U205 that are programmed to divide by a certain number. This programming is provided through J201, pins 18, 19 and 20. The frequency stability of the High Stability synthesizer (TCXO output) is established by the ±0.1 PPM stability of the OCXO drawer. The output from the high stability loop is stable from -40°C to +70°C (-40°F to +158°F).
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CIRCUIT DESCRIPTION DATA OUT REF in REF out CLOCK DATA IN ENABLE 20 PORT fR 13-STAGE R COUNTER OSC OR 4-STAGE DIVIDER OUTPUT A fV SHIFT REGISTER AND CONTROL LOGIC 19 16 LOGIC DOUBLE-BUFFERED R REGISTER 16 BITS 1 18 SELECT fR fV LOCK DETECT AND CONTROL C REGISTER 8 BITS 15 fR fV 17 STANDBY LOGIC 2 POR fR A REGISTER 24 BITS fV PHASE/FREQUENCY DETECTOR A AND CONTROL PHASE/FREQUENCY DETECTOR B AND CONTROL 8 6 3 4 LD OUTPUT B (OPEN-DRAIN OUTPUT) Rx PDout OR (UP) OV (DOWN) INTERNA
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CIRCUIT DESCRIPTION R806 and R807. AC voltage divider C812 and C813 initiates and maintains oscillation. C803 couples Q802 to resonator L220 that provides the shunt inductance of the tank circuit. The shunt capacitance of the tank circuit is made primarily by C804 in series with CR802. To determine the overall divide number of the prescaler and N counter, the number of TCXO output pulses required to produce one N counter output pulse can be counted.
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CIRCUIT DESCRIPTION 6.1.15 SYNTHESIZER (U209) sor Card (MPC), which is buffered and latched through the Interface Alarm Card (IAC) and fed into the synthesizer on J201, pin 20 to Data input port U209, pin 19. The synthesizer inputs/outputs are shown in Figures 6-1 and 6-3. The synthesizer output signal is the receiver first injection frequency. This signal is produced by a VCO (voltage-controller oscillator). The frequency of this oscillator is controlled by a DC voltage.
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CIRCUIT DESCRIPTION 6.1.18 BUFFER AMPLIFIER (Q214, Q215) NOTE: Section 8.2.5 describes how the N and A counter numbers are calculated for other channels. A cascode amplifier formed by Q214 and Q215 provides amplification and also isolation between the VCO and Receiver RF stages. A cascode amplifier is used because it provides high reverse isolation. The input signal to this amplifier is coupled from VCO A006 by C268. C268 also provides DC blocking.
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CIRCUIT DESCRIPTION amplifier U129B and transmit modulation gate U118D to P100, pin 29 (Tx MOD). P100, pin 29 is connected to backplane connector J2, pin 8 and RFIB connector J101, pin 22 to J102, pin 13. The transmit modulation and 3.5V reference enter the Exciter on J401, pin 13 and is routed to U402B,pin 6. R425 sets the TCXO modulation level. The modulation signal along with the 3.5V DC is applied to U402A, pin 2. Resonator L404 provides the shunt inductance of the tank circuit.
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CIRCUIT DESCRIPTION The fV input is produced by dividing the TCXO frequency using the prescaler and N counter in U401. The prescaler divides by 64 or 65. The prescaler divide number is controlled by the N and A counters in U401. The N and A counters function as follows: The phase detector output signal is generated by counters in U401 programmed to divide by a certain number. This programming is provided through J401, pins 18, 19 and 20.
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CIRCUIT DESCRIPTION HIGH STABILITY SYNTHESIZER BUFFER HS CS EX HS LK EX REF IN Q401/Q402 U401 F IN TX OCXO FROM Q204 PD OUT SWITCH LPTT Q405 AMP EX MOD TCXO BUFFER U402B U402A AMP BUFFER U404A U404B MAIN SYNTHESIZER DATA CLK SYN CS EX PD OUT U403 F IN Y401 VCO A007 Q410/Q411 Q412 Q413 BUFFER BUFFER AMP AMP Q406/Q407 U407B TO PA V REF EX BUFFER SYN LK EX REF IN Q403/Q404 Figure 6-4 EXCITER BLOCK DIAGRAM 6.2.
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CIRCUIT DESCRIPTION The synthesizer contains the R (reference), N, and A counters, phase and lock detectors and counter programming circuitry. Both the N and A counters begin counting down from their programmed number. When the A counter reaches zero, it halts until the N counter reaches zero. Both counters then reset and the cycle repeats. The A counter is always programmed with a smaller number than the N counter. While the A counter is counting down, the prescaler divides by 65.
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CIRCUIT DESCRIPTION 6.2.13 RF AMPLIFIERS (Q412, Q413) bypass is provided by C416, C418 and C419. The output of Q403/Q404 is coupled to U403, pin 20 by C417. RF amplifier Q412 is biased by CR402, R469, R470 and R472. C448 provides RF bypass from the DC line and R471/R472 provide supply voltage isolation. A section of microstrip on the collector acts as an RF choke to the supply line. Q412 is matched to Q413 by C449, C451 and two sections of microstrip. 6.2.
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CIRCUIT DESCRIPTION OCXO 1 BUFFER Y901 Q901 U906A SWITCH (OSC 2) 10 MHz REF OUT DIVIDER (OSC 1) U905 U901A/B/C/D, U902B, U904D LINE DRIVERS 1.
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CIRCUIT DESCRIPTION 10 MHz IN OUT ALLOW 30 MINUTES WARM UP FOR PROPER STABILIZATION 1.25 MHz OUTPUTS 115V 1 2 3 4 5 6 7 8 9 10 11 12 1314 15 16 1718 BACK PANEL TM OCXO1 OCXO2 DELTA F OUTPUT AC DC DC BACKUP INTERRUPT OCXO 1 INTERRUPT OCXO 2 INTERRUPT FRONT PANEL Figure 6-6 OCXO DRAWER FRONT/REAR PANELS When there is no output from the drawer, the RF Output LED changes from green to flashing red indicating failure. of the oscillators as described in Section 6.3.
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CIRCUIT DESCRIPTION H U901B H 10 MHz (OCXO 1, Q901) 4 6 5 U901C 9 8 10 MHz (OCXO 2, Q902) 10 U901D U902B U904D 4 6 11 12 10 10 MHz SIGNAL OUTPUT (U905, U906) 11 13 5 U901A 1 74HC00 H 3 2 (X) (OSC 1) L (OSC 2) (S) L H U902D REMOTE CONTROL (S904, U908) 11 74HC04 9 13 OSCILLATOR SELECT (S905, U909) U904A U902C 12 8 10 1 OSC 2 (Q909, DS903) H 1 U903D 12 11 H 13 U902A OSC 1 (Q906, DS902) 2 OSC 2 STATUS (U912, PIN 4) 74HC08 3 2 H OSC 1 STATUS (U912, PIN 1) Figure
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CIRCUIT DESCRIPTION Power control is connected to WO505 from the RF Interface board (RFIB). RF is filtered from the control voltage line by various capacitors and inductors to U501, pin 2. This control voltage regulates the RF output of the amplifier on U501, pin 4 to approximately 5W. The Q2 output of U911, pin 12 is applied to U913, pin 14, which is one input of an internal phase comparator. The other input of this phase comparator is from a voltage controlled oscillator (VCO) internal to U913.
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CIRCUIT DESCRIPTION LOW-PASS FILTER POWER SENSE FINAL 1 POWER CR502 SPLITTER RF IN AMP / PRE-DRIVER DRIVER U501 Q501 2 RF OUTPUT FORWARD/REVERSE POWER DETECTOR COMBINER Q502 RF LOAD Q503 POWER CONTROL THERMAL SENSOR CIRCULATOR AMP THERMAL SENSOR U502A U503 FINAL 2 POWER 2 POWER SENSE U651A/B U652A/B FORWARD POWER REVERSE (REFLECTED) POWER CR503 Figure 6-8 75W PA BLOCK DIAGRAM 6.4.
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CIRCUIT DESCRIPTION POWER SENSE RF 1 SPLITTER 1/2 WAVE DELAY LINE COMBINER Q701 Q702 COMBINER LOW-PASS FILTER POWER SENSE RF 2 SPLITTER RF OUTPUT RF IN GAIN BLOCK DRIVER U501 Q502 Q501 1/4 WAVE TRANSFORMER DIRECTIONAL COUPLER POWER CONTROL RF 3 THERMAL SENSOR RF 4 RF LOAD CIRCULATOR POWER SENSE U651A/B SPLITTER AMP THERMAL SENSOR U502A U503 FORWARD Q703 Q704 U652A/B VSWR 1/2 WAVE DELAY COMBINER POWER SENSE Figure 6-9 160W PA BLOCK DIAGRAM 6.5.
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CIRCUIT DESCRIPTION 6.6 RF INTERFACE BOARD Pin 4 The RF Interface Board connects the Receiver, Exciter and Power Amplifier to the backplane and power supply (see Figure 6-10). Pin 4 carries ground current between the RF Interface board and Backplane board. The input and output connectors for the RF Interface Board are defined as follows. 6.6.
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CIRCUIT DESCRIPTION Pin 13 RF MUX1 INH The Multiplexer-1 Inhibit (U105, pin 6) is a CMOS input from the Controller that inhibits (disables) the output from the RF 1 Multiplexer with a logic high. Pin 24 UNUSED Pin 25 LOGIC CONTROL TO FANS Pin 25 is in parallel with the temperature sensor. Pin 26 Pin 14 The Data B (U105, pin 10) is the middle significant bit in the three multiplex chips located on the RFIB. This pin is a CMOS input from the Controller requiring a logic high for activation.
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CIRCUIT DESCRIPTION Pin 30 6.6.4 POWER AMPLIFIER CONNECTIONS RSSI This pin is the Receive Signal Strength Indication to the Controller. This RSSI is used for tune-up of the Receiver front-end during factory test mode. The dynamic range is 60 dB. It has an output from an opamp with the voltage going from 0.5V to 4.5V. The level has an adjustment in the Receiver. WO 115 POWER SENSE Pin 31 This capacitive feedthrough pin is at +26.
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CIRCUIT DESCRIPTION WO 122 0V-5V output and 0°C to +100°C (+32°F to 212°F) input when driving a 10k ohm load. The primary functions of this line are for fan on/off and PA power reduction. The fan should be turned on at 50°C and off at 45°C. The PA should have power reduced when 90°C (194°F) is reached and with absolute turn-off at 95°C (203°F). This line goes through the multiplexers and A D LEVEL line to the Controller for processing.
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CIRCUIT DESCRIPTION Pin 10 GROUND Pin 19 Pin 11 LPTT The clock controls the Exciter synthesizer when loading. The input source in the Controller is TTL with the speed determined by the synthesizer chip. There could be as many as four synthesizers and a shift register. The Logic Push-To-Talk (LPTT) is an open collector from the Controller. It has a sink capability of 20 mA nominal and a voltage rating of 18V maximum. The transmitter should produce power when this pin is a logic low.
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CIRCUIT DESCRIPTION Pin 10 UNUSED Pin 11 GROUND Pin 16 Pin 16 is the 900 MHz Receiver high stability synthesizer chip select. This synthesizer is the same circuit as used in the Exciter. A low enables loading the high stability synthesizer loop. Pin 11 carries ground current between the RFIB and the Receiver board. Pin 17 Pin 12 HS CS RX GROUND Pin 17 carries ground current between the RFIB and the Receiver board. SYN CS RX Pin 12 is the Receiver main synthesizer chip select.
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CIRCUIT DESCRIPTION MUX/RES J1 PC STR 2 U103 SER CLK Q101 FORWARD POWER Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 STR RF POWER CONTROL +26V U102A P101 P102 POWER ADJUST U102B OE +15V P103 P104 Q102-Q105 COMPARATOR P105 Q108 PA Q111B PWR CNTRL MUX 3 RF DET (PRE-DRIVER) Y0 U109A FORWARD POWER U112B Y1 FINAL 1 POWER U104 RF MUX3 INH 19 E Y2 A0 Y3 A1 Y4 A2 Y5 Z U112A FINAL 2 POWER U112D FINAL 3 POWER U112C FINAL 4 POWER U109B REFLECTED POWER U109D Y6 TEMPERATURE WO103 VREF EX 14 L
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CIRCUIT DESCRIPTION 6.7 800W POWER SUPPLY C111. The resistor network connected to CR104 charges up C106/C107 to +18V off the line. This provides the bias voltage required to start the controller IC U102. Once the IC turns on current is being switched on L107. A small tap winding on L107 provides sustaining current to the U102. When AC is first connected it could take several seconds for C106/C107 to charge to +14V before the unit starts.
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6-27 AC SENSE AC IN DC IN T101 RT101, RT102 Q104 VCC CR110, CR111 CR101, CR102 BRIDGE RECTIFIER TEMP +5V REGULATOR SENSOR U106 U101 TO REMOTE EN Q103 Q105, Q106 U107 AMP U110A TEMP OUT U110C T105 CURRENT SENSE U115 FAN CONTROLLER Q120, Q121 U110D OVERVOLTAGE SHUTDOWN FAN SYNC L101 BUFFER/ HYSTERESIS Q114 2-TRANSISTOR HI/LO VOLTAGE FWD CONVERTER ISOLATION Q115, Q116 T106 Q117, Q118 RESISTOR LADDER THERMAL SHUTDOWN T106 U109 LEVEL SHIFTING GATE DRIVE ON/OFF SENSE BATT BACK-U
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CIRCUIT DESCRIPTION converters, the cycle terminates and a new one starts. This forces the +15V and +5V converters to run at the same frequency and is slightly delayed from the +26.5V converter. In operation, the power MOSFETs Q116, Q118 are on for approximately one-third of the period providing current to the primary side of T107. During that time CR121 is forward conducting and charging L101. When the MOSFETs are switched off, the magnetizing current of T107 continues to flow through CR118, CR119.
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CIRCUIT DESCRIPTION 6.7.6 +15V CONVERTER Sync pulse is added into the low side of C176 via C172 and R225. The free running frequency of the 15V converter (approximately 145 kHz) is set about 10% lower than the 26.5V converter. This longer duty cycle allows the sync circuit to synchronize the converter. The input voltage to this "Buck" DC/DC converter is the main +26.5V output fused through F102. The bias voltage for the controller IC U112, pin 15 is provided by a +15V regulator U111.
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CIRCUIT DESCRIPTION 6.8.2 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 adjustable. When certain components are replaced, the voltages must be adjusted. The voltages should be set at light load (i.e. repeater in the Receive mode). The charger charges the batteries when the repeater is on and switch S101 is "on".
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CIRCUIT DESCRIPTION 6.8.4 ENGAGING THE RELAY Charger Voltage The main purpose of the Battery Back-Up Module (BBM) is that when the power supply loses AC line voltage, a pair of series connected 12V lead acid batteries (approximately 26.4V) or other 23-28.5V DC source will engage to the supply allowing the repeater to operate. To perform this function a voltage comparator (U101) is used to monitor the charge tap coming from the power supply. 30V -55mV/°C 27.3V 25.2V 24V -30° 0° +22° +30° A 2.
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CIRCUIT DESCRIPTION 6.8.6 BBM FAN CONTROL 6.9 CARD RACK The voltage supply to the thermal measurement circuit is taken from the 26.5V DC line into the BBM. A precision temperature sensor U106 is mounted on the PC board near a screw into the BBM bracket which transfers heat to the sensor. The output of this sensor is 10 mV/°C with a ±1% accuracy. This voltage is amplified by U105 with resistors R153/R154 setting the gain.
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CIRCUIT DESCRIPTION 6.10 ALARM EXTERNAL CONNECTOR BOARD The alarm external connector board (A10) is the interface for the alarm outputs and connecting repeaters through the high speed data bus.
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CIRCUIT DESCRIPTION • 6.11 MAIN PROCESSOR CARD 6.11.1 INTRODUCTION The Main Processor Card (MPC) connects to the computer with repeater software to program the repeater parameters, sets and reads the alarms, handles communication between repeaters, maintains the audio gating for the MAC, handles initialization requests from cards and contains the repeater RF data for the Receiver, Exciter and CWID. 6.11.
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CIRCUIT DESCRIPTION P2-0 STAGING STAGING LATCH LATCH ADM P2-1 PROGRAMMABLE LC DMA etc.
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CIRCUIT DESCRIPTION The operating speed of the microprocessor is set by an 11.059 MHz clock generated by Y2. This clock frequency is divided down by an internal divider to provide a machine cycle time of 1.08 µs. Most program instructions are executed in one machine cycle and none require more than four machine cycles. Pin 15 MREQ The microprocessor U13 communicates with the main processor (U27) through U9 and U10. U9 is a Transmit FIFO (First In First Out) and U10 is a Receive FIFO.
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CIRCUIT DESCRIPTION Pins 28-29 Pins 60-61 6.11.8 J3 BAUD RATE +5V IN J3 is jumpered to select the baud rate from the computer to the MPC, these two baud rates must be the same (see Figure 6-20). The baud rate of the computer can be found from the command line by requesting /b, /h or /? (see Section 3.1.5). To change jumper J13: This is the +5V input to the MPC from the power supply via the Controller backplane.
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CIRCUIT DESCRIPTION When it is time to transmit the CW Identification, the main processor on the MPC sends the identification to U111 via the data bus and U160 (Rx FIFO). The CWID is sent to the Tx Data Amplifier and Filter. The output of the filter is summed with the transmit audio and sent to the Exciter. Audio control functions for each repeater are performed by the main processor in the MPC. The MPC contains the software and maintains control over the repeater via microprocessor U27.
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CIRCUIT DESCRIPTION 6.12.5 RECEIVE DATA CIRCUITRY Audio gates U113B/C/D permit noise squelch circuit, control logic, and audio switch to control gating of the audio signal. The control signal from the noise squelch circuit is applied to U113B through U113D. When a carrier is detected, this input is high and U113B passes the signal. Programming determines the gating of audio. When audio is passed by U113B/ C and U114A, the audio can be routed through other gates to various outputs (see Section 6.12.6).
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CIRCUIT DESCRIPTION bridge. When a high-level signal is applied to the bridge, the bridge opens and the output of the bridge is limited to a specific level. When the audio received must be routed to the external speaker or speaker/microphone, Local Audio Mute Gate U114D is enabled by U111/latch U108. The audio is passed to local audio output amplifier U132. The gain of U132 is adjusted by the local audio volume control and the on/off switch.
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CIRCUIT DESCRIPTION filter passes the 800 Hz fundamental present in the signal. The output of the filter is jumpered by P106 on J106, pins 2/3 and P107 on J106, pins 4/5 to the summing amplifier and applied to gate U118D, and to the modulation input of the Exciter. logic 1 level that is slightly higher and a logic 0 that is slightly lower. This pulse shaping minimizes interference between data bits when the data is filtered by the low-pass filter.
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CIRCUIT DESCRIPTION Pins 24/56 6.12.12 P100 EXTERNAL OUTPUTS HSDB+/- Connector P100 contains the audio and data outputs to the terminal block on the back of the Repeater cabinet. These outputs are connected to other external devices. The input and output connectors for the connector are defined as follows. The High Speed Data Bus interconnects the Viking VX repeaters. A 50 ohm termination is required if Viking VX repeaters are used with existing repeaters and the interface.
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CIRCUIT DESCRIPTION Pin 28 6.12.18 J105 WATCH DOG A D LEVEL J105 enables or disables the watchdog timer for reset. Normal operating mode is P105 jumpering J105, pins 2/3. This jumper should not be moved or removed. This is the Audio/Data Level output. Pin 29 TX MOD The output of this pin is produced by audio and data inputs to the Repeater to produce the signals on this pin. This signal goes through the RFIB and then to the Exciter. Pin 30 UNUSED Pin 31 RX VOICE 6.12.
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CIRCUIT DESCRIPTION 6.13.2 ISOLATED INPUTS Standard 12V/24V AC control transformer outputs can be accepted as well as DC voltages. This input voltage range is 5-24V RMS. External resistors connected in series may be used to extend the input voltage range. The isolated alarm inputs are provided via a terminal block on the back of the repeater (see Figures 6-16 and 6-17). The isolated inputs are driven by either AC or DC signals.
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CIRCUIT DESCRIPTION Pins 1-4 Pins 33-36 The third form is the output relay and to transmit a 15-character description of the alarm over-the-air to a remote location. The description is sent in Morse code with a transmit ID assigned during programming. A transceiver programmed with this ID can monitor the repeater and alert the system owner when an alarm occurs. ADDRESS BUS (A12-A19 Only) This address bus provides a path between the MPC main processor and the latches and multiplexers of the IAC.
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CIRCUIT DESCRIPTION Pins 16/17 UNUSED Pin 47 Pin 18 SYNC IN Read is used with the MREQ line to read data from the MPC processor and external memory. This is an input received from a connection to an external device. Pins 19/51 Pin 48 READ WRITE Write is used with the MREQ line to write data to the MPC processor and external memory. ALARM 1 OUT +/ALARM 1 OUT - This is an output to an external device to perform a specific function.
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CIRCUIT DESCRIPTION Pin 7 Pin 16 EXT OUT 1 This is the 900 MHz Exciter high stability synthesizer chip select. A low enables loading the high stability synthesizer loop. This is an external output to rear connector J1. Pin 8 HS CS EX RF CLOCK The clock will control the synthesizer chips and power control circuit when loading. This pin is a TTL input from the Controller.
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CIRCUIT DESCRIPTION Pin 30 6.13.7 J500 A D LEVEL TEST POINT RF DATA B 20 lines (of the possible 24) of RF functions sampled are multiplexed to the Controller through this pin using three multiplex chips. Data B (U105, pin 10) is the middle significant bit in the 3 multiplex chips located on the RFIB. This pin is a CMOS input from the Controller requiring a logic high for activation. 6.13.8 J501 GROUND J501 is an IAC ground reference for test points. Pin 31 RF DATA C 6.13.
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ADDRESS BUS (19:0) EPROM A0-A19 +5V A0-A14 LED DRIVER DE U18 MAIN MICROPROCESSOR PO0 PO1 PO2 U15 IO1-IO8 FLASH MEMORY PO3 PO4 PO5 A0-A19 RAM A0-A16 A0-A14 LPTT U27 DS1 R/W CE DATA BUS (7:0) U25 DQ0-DQ7 IO1-IO8 U28 DISPLAY DRIVER RESET U26 A DMARQ0 B C DMAAKO TC0 O0 OE DMARQ1 D WE Vpp CE A16 D0-D7 O11 A A17 CE DE B A18 C WE U5 RST1 BALANCED Rx/Tx U17 X1 IRDB- DE U24 INT POLL D R RIDB+ RES IN Y1 10 MHz TxD1 RxD1 TxD0 SWITCH RxD RxD0 D RESET S1 U20B
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U115A VOTER AUDIO MUTE U108 U114D LOCAL AUDIO MUTE U113C RX MUTE GATE LATCHES P101 U114A RX OPTION ADDRESS LATCHES A0-A19 U115B RX VOICE D1-D8 U116B RX AUDIO U115C RX VOICE TO BACKPLANE A16-A19 U116A FSK TO AUDIO CLK Q4 A12-A15 A-D A-D Q5 U103 U133 D1 G1 Q6 U153C REPEAT Q7 U107 Q8 G2 MREQ 15 Q2 Q1 U153D TxS TO FSK U116D TxA TO FSK Q9 RX FIFO U159C DATA TO A D DATA BUS (7:0) MPC LATCH U116C Tx AUDIO D1-D8 Q3 U101F U154A U158A Tx VOICE TX FIFO U153A DATA LEVEL TEST OC P100
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Rx VOICE GATE LOCAL AUDIO OUTPUT AMPLIFIER U114D U132 J104 EXTERNAL SPEAKER J101 U108 P100 VOTER AUDIO AMPLIFIER VOTER AUDIO MUTE U120A U115A VOTER AUDIO 25 U121A/B Rx WB AUDIO 27 VOICE AMPLIFIER U115B U120B U115C Rx NET GATE FSK AMPLIFIER U115D U165B U108 U108 LOW-PASS FILTER < 3 kHz Rx AUDIO AMPLIFIER HIGH-PASS FILTER > 300 Hz U122A U122B/C/D DE-EMPHASIS NORMAL RX GATE RX MUTE GATE RX OPTION GATE U163A U113B U113C U114A SPEAKER/MIC Rx VOICE GATE Rx VOICE TO BACKPLANE
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P500 + S500 P500 RF INTERFACE DATA BUS (7:0) DO-D7 D0-D7 IAC ADDRESSING A16 A17 A18 A19 A B C D LED CONTROL U518 CLK A13-A19 Q6 A15 MREQ A B C G2 G1 U500 Q2 Q3 Q4 Q5 Q7 U505 MISC INPUTS Q1 D0-D7 U501 Q3 A13 A14 +5V Q1-Q8 U508 U517 OC Q8 P501 RF MUX 1 INH Q2 Q3 RF MUX 2 INH RF MUX 3 INH Q4 Q5 PC STR HS CS EX Q6 Q7 STN CS EX HS CS RX Q8 STN CS RX +15V CR507 CR506 U520 Q1 + S501 +5V CLK D3 D2 ALARM 1 IN +5V ALARM INPUTS WO 1 AC FAIL IN +15V CR509 CR508 U510 D8 ALAR
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ALIGNMENT AND TEST PROCEDURES SECTION 7 ALIGNMENT AND TEST PROCEDURES 7.2.2 VOLTAGE MEASUREMENTS 7.1 OCXO AND TEST EQUIPMENT FREQUENCY STABILITY Apply power to the Receiver by plugging the 20pin cable from the RF Interface Board into J201 (see Figure 7-1). The receiver and transmitter frequencies are locked to the 1.250000 MHz reference frequency from the local oscillator drawer. This frequency is stable to within ±0.1 PPM from -30°C to +60°C as required by the FCC.
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ALIGNMENT AND TEST PROCEDURES 8. Tune C207, L209, L211 and L225 for peak voltage on J201, pin 7 (TP3). Decrease the generator output level to maintain 2-3V. Distortion should be <5% (typically < 3%). 5. The Synthesizer is programmed for 199 channels below the Receive Channel. 6. The voltage on U209, pin 6 (TP2) should be > 2V DC. 9. Repeat Steps 4, 5 and 6. 7. Record the voltage on J201, pin 13 (TP5) ____. 7.2.7 AUDIO DISTORTION 8. If the voltages recorded in Steps 3 and 6 are not within ±0.
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ALIGNMENT AND TEST PROCEDURES J201 8 4 4 1 5 TP6 R264 8 5 U206 1 R261 1 TP4 5 U207 TP3 8 U208 20 19 2 1 4 11 20 R284 U208 Y201 1 6 10 4 L220 1 5 8 U210 TP1 Z213 TP5 L231 L223 L224 L225 L211 L206 L209 L205 L204 L203 L202 L201 L207 L229 Figure 7-1 RECEIVER ALIGNMENT POINTS 7.3 EXCITER ALIGNMENT 7.3.2 VOLTAGE MEASUREMENTS Refer to Figure 7-2 for component locations. Refer to Figure 7-10 for equipment needed and setup diagram.
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ALIGNMENT AND TEST PROCEDURES 7. Press the space bar to unkey the Exciter. 5. Press the space bar to unkey the Exciter. 7.3.4 TCXO FREQUENCY ADJUST NOTE: Ensure that the oscilloscope is "DC" coupled and the Modulation Analyzer has the 3 kHz LPF switch set but NOT the 300 Hz HPF and 50 Hz HPF switches set. 1. Tune TCXO Y401 for 3.5V DC ±0.05V DC at U402, pin 1 (response time is very slow). 7.3.5 VCO TEST 8. Adjust U151 for a 2V P-P square wave on P100, pin 29. 1.
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ALIGNMENT AND TEST PROCEDURES 7.4.2 FORWARD POWER OUTPUT CALIBRATION 7.4 75W POWER AMPLIFIER ALIGNMENT 7.4.1 INTRODUCTION 1. Connect the: power supply ground lead to P105, +15V DC lead to P103, +26.5V DC lead to P101 and the 36-pin cable to J101 on the RFIB. Refer to Figures 7-3 and 7-5 for component locations. Refer to Figure 7-11 for equipment needed and setup diagram. Select "PA" from the "TEST" menu in the Repeater Programming Software. 2. Connect attenuator and power meter to A8. 3.
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ALIGNMENT AND TEST PROCEDURES 3. Adjust power limit control R76 clockwise until power is limited to 0.55 dB above 85W (95W). If the maximum PA power is < 95W, adjust R76 until power begins to decrease. 7.4.4 REFLECTED POWER ADJUST 1. Remove the load cable from A8. 2. Press the space bar to key the PA. NOTE: This will not harm the PA. 3. Adjust Reverse Power Calibration Pot R680 for equal voltages on W126 and W121 on the RFIB or for equal Forward and Reverse Power. 4. Press the space bar to unkey the PA. 5.
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ALIGNMENT AND TEST PROCEDURES 7.5 160W POWER AMPLIFIER ALIGNMENT 7. Adjust Forward Power Calibration Pot R663 for 160W ±0.1 dB (±3.5W). Refer to Figures 7-4 and 7-5 for component locations. Refer to Figure 7-8 for equipment needed and setup diagram. 8. Verify Output 1 is within 20% of Output 2 and Output 3 is within 20% of Output 4. 7.5.
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ALIGNMENT AND TEST PROCEDURES R663 Q704 R680 R717 R716 WO510 R730 R701 Q703 U501 Q702 R703 R702 A8 Q701 Q502 Figure 7-4 160W POWER AMPLIFIER ALIGNMENT POINTS J104 R170 R171 J103 U108 J102 R150 R106 U104 WO143 J101 WO144 WO147 R76 WO145 WO121 WO126 WO115 WO124 WO125 WO123 WO127 WO122 Figure 7-5 RF INTERFACE BOARD ALIGNMENT POINTS October 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES RED WHITE BLACK GREEN GREEN WHITE WHITE BLACK BLACK RED WHITE BLACK (INCLUDED IN 2000 SERIES SERVICE KIT 250-2000-230) Figure 7-6 POWER EXTENDER CABLES AC VOLTMETER RF SIGNAL GENERATOR RNT REPEATER RXA+ RXA+ RXA- RXA- TXS+ TXS+ C I M J11 RECEIVER LINK LINES M A C J100 J103 TXS- AC VOLTMETER TXSAC VOLTMETER AC VOLTMETER Figure 7-7 REPEATER TO CIM TEST SETUP 7-9 October 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES CR1 CR2GRN CR5YEL CR4YEL CR3RED RED DS1 J1 GND J103 PROG JACK A D LEVEL J10 0 S1 RESET LOCAL ON/OFF/VOL POWER CWID HANG SWITCH MOBILE XMIT R236 MIC J102 SPKR J101 EXT SPKR TEST POINT J500 J104 J501 GND J502 +15V POWER METER 50 OHM DUMMY LOAD HP 436A 40 dB THRULINE ATTENUATOR COMMUNICATIONS SERVICE MONITOR RF INPUT Q704 R663 R680 R717 R716 WO510 R730 R701 Q703 U501 Q702 R703 R702 Q701 Figure 7-8 160W PA TEST SETUP October 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES AC VOLTMETER DC VOLTMETER 1.
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ALIGNMENT AND TEST PROCEDURES AC VOLTMETER DC VOLTMETER 1.
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ALIGNMENT AND TEST PROCEDURES CR1 CR2GRN CR5YEL CR4YEL CR3RED RED DS1 J1 PROG JACK GND J103 A D LEVEL J10 0 S1 RESET LOCAL ON/OFF/VOL POWER CWID HANG SWITCH MOBILE XMIT R236 MIC J10 2 SPKR J10 1 EXT SPKR J104 TEST POINT J500 J501 GND J502 +15V R680 R663 B C B Q503 B E B 1 2 R509 POWER METER 50 OHM DUMMY LOAD HP 436A U501 3 B C B 4 B Q502 E B B B CQ501E B 40 dB THRULINE ATTENUATOR B Figure 7-11 75W POWER AMPLIFIER TEST SETUP 7-13 October 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES 7.6 FULL REPEATER ALIGNMENT 7.6.3 TRANSMITTER TEST/ADJUSTMENTS 7.6.1 PERFORMANCE TEST PROGRAM NOTE: 2000 Series OCXO must be powered up for 1/ 2 hour or longer to stabilize frequncy. 1. Select the TEST - FULL REPEATER - ALL TEST and press Enter. Transmit Mode 7.6.2 REPEATER SETUP 1. Press the space bar to key the repeater. The Viking VX repeater has been pretested at the factory, therefore only performance tests are required to check the repeater.
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ALIGNMENT AND TEST PROCEDURES 6. Increase the RF generator output until the Receiver unsquelches. Reading shall be ≤ 10 dB SINAD. 3. Adjust R237 for 0 dBm (775 mV RMS). 4. Connect a 16 ohm load and distortion analyzer to J101 or J104 of the MAC. Receiver Data Level Adjustment 5. Adjust R236 for 2.8V RMS and measure the distortion. Distortion should be < 3%. 1. Adjust the RF generator for 100 µV output with a 100 Hz tone at ±800 Hz deviation. Receiver Hum and Noise Measurement 2.
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ALIGNMENT AND TEST PROCEDURES 3. Offset Channel Selectivity 5. Adjust R305 for 0 dBm (775 mV RMS). 4. Intermodulation Rejection 6. Press the space bar to unkey the transmitter. 5. Spurious Rejection 7. Press F2 to advance to the next screen. 6. Audio Response 8. Final adjustment must be performed on the customer channel. Apply a 1 kHz tone at +7 dBm (1.73V RMS) to P100, pin 32 of the MAC. (Set modulation analyzer LPF switch to 3 kHz.) 7.
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ALIGNMENT AND TEST PROCEDURES 2. Press the space bar to key the transmitter. NOTE: An HP8901A modulation analyzer is required for this test. 3. Adjust U151 with the PgUp/PgDn and CurUp/ CurDn keys to achieve ±750 Hz ±50 Hz transmit deviation. 1. On the modulation analyzer press: 300 Hz HPF 3000 Hz LPF FM Pre-Display 750 µS Avg RMS Cal 0.22 dB 4. Press the space bar to unkey the transmitter. Audio/Data Deviation Check 1. Remove VNC cards if present. 2. Apply a 1 kHz tone at +7 dBm (1.
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ALIGNMENT AND TEST PROCEDURES 3. Press the space bar to key the transmitter. 8 4. Deviation shall be between 1.35 and 1.5 kHz. 7 6 5 4 ) ND S(G X S R O) DI RX ) AU ND ( + (G K) S S FS SRX +( RX S TX X O) R ) DI AU (FSK ( + + S S TX TX 4 S1 3 01 2 1 5. Adjust 1 kHz signal to -8.2 dBm (300 mV RMS). Deviation shall be between 750 and 850 kHz. 6. Adjust 1 kHz signal to -17.8 dBm (100 mV RMS). Deviation shall be between 450 and 500 kHz. 7. Press the space bar to unkey the transmitter. S TX 7.6.
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ALIGNMENT AND TEST PROCEDURES 7.6.9 REPEATER OPERATION 2. Verify that the repeater is programmed for "Stand Alone" mode in Setup Parameters-F4 (see Section 4.3.1). New HSDB Test 3. The repeater is now in Normal Operation mode. Verify by the MPC front panel indicators that no HSDB alarms have occurred (Alarm Number 10) see Table 1-2. 1. Switch settings on the MPC for RS-485 (new style) operation are shown in Figure 7-14. S002 all Section On. S003 all Section Off. 1 2 Handshake Test 3 4 ON 1.
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J105 ALIGNMENT AND TEST PROCEDURES WATCH DOG S101 ON 4 3 RNT RS-232 2 1 RESET P101 S102 SEC AUDIO TO RNT U149 TX RX NET 5 4 3 2 1 SPEAKER 1 VOTER AUDIO 25 NOISE LEVEL 7-20 P100 RX WB AUDIO 27 13 MAIN AUDIO TO RNT VOTER AUDIO LEVEL RX VOICE LEVEL TX VOICE LEVEL R305 R233 RX VOICE 31 TX VOICE 32 Figure 7-16 MAC ALIGNMENT POINTS October 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES S3 ON S2 ON 33 12 3 4 12 3 45 67 8 BALANCED RX/TX RESET S1 1 WATCHDOG J6 12 3 J5 1 2 3 HSDB 11.
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ALIGNMENT AND TEST PROCEDURES ALARM 1 1 8 S500 ALARM 3 S502 5 2 GND 1 8 S503 3 4 GND 1 S501 5 2 +5V +15V 33 1 3 4 GND ALARM 4 +5V +15V 1 8 3 4 5 8 2 ALARM 2 +5V +15V 5 2 +5V +15V 3 4 GND P500 J503 J504 1 1 2 3 ALARM 3 OUTPUT 1-2 ALARM 2-3 AD LEVEL CR525 +15V (GRN) CR523 +15V ACC (GRN) CR524 -5V (GRN) CR501 +5V (GRN) CR503 CWID (GRN) CR502 HANG (YEL) CR505 SWITCH (YEL) CR504 MOBILE (GRN) CR500 XMIT(RED) 2 3 ALARM 4 OUTPUT 1-2 ALARM 2-3 AD LEVEL 64
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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 maintenance schedule and an accurate performance record maintained. Important checks are receiver sensitivity and transmitter frequency, modulation, and power output. It is recommended that repeater performance be checked regularly even though periodic checks are not specifically required by the FCC.
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SERVICING 8.2.2 TCXO MODULE Modulus Control Signal Check the signal at TCXO, pin 5. It should be 17.5 MHz for Y201 and Y401 at a level of approximately 3V P-P. If the TCXO is defective, it is not serviceable and must be replaced with a new unit as described in Section 8.1.5. 1. The frequency of the modulus control signal on TEST 1, pin 9 should be equal to the N counter output frequency (either in or out of lock). When the VCO is in lock, this frequency should be 12.5 kHz. 2.
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SERVICING "A" Counter Measure the prescaler input frequency at fin, pin 11. Then measure the output frequency at TEST 2, pin 13 and calculate the divide number. If the VCO is not locked on frequency, the divide number should still be correct. The measured frequencies may not be exactly as calculated due to counter accuracy and resolution limitations. A Counter Divide Number = (VCO freq (MHz) ÷ .
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SERVICING AC FAIL GND +5V +15V -5V +28V A 2 1 4 7 3 11 5 8 6 12 9 10 B C GND GND +15V THERMAL SENSE ON/OFF Figure 8-3 POWER SUPPLY REAR VIEW B- B+ TEMP REVERSE BATTERY CHARGER ON EARTH GROUND LINE BATTERY FAULT NEUTRAL Figure 8-4 POWER SUPPLY FRONT VIEW October 1999 Part No.
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SERVICING The Japanese EIA Standard may also utilize a bar to indicate the temperature coefficient. Standby Battery Jack This provides a connection point for a +24V DC standby battery. Current is drawn from the battery only when the repeater enable line is on and AC has failed, or no AC is connected. A trickle charger can be jumpered in to charge the battery when AC returns. The charger jumper is removed when a separate battery charger is used (see Figure 8-4).
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SERVICING Some resistors with a ±1% tolerance are identified by a 4-digit number and others may not have a marking. When identified with a 4-digit number, the first three digits are the value and the fourth is the multiplier.
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SERVICING 8.7 BERYLLIUM PRODUCT WARNING Q501, Q502, Q503, R504, R505 in the 75W power amplifier and R685 R701, R702, R703, R716, R717, R730, Q502, Q701, Q702, Q703, Q704 in the 160W Power Amplifier contain Beryllium (BeO). Inhalation of dust or fumes may cause serious chronic lung disease. Refer to the Material Safety Data Sheets for further details. 8.8 GRAFOIL REPLACEMENT PROCEDURE When replacing a device that uses Grafoil for the thermal interface, the Grafoil must be replaced.
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SERVICING October 1999 Part No.
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PARTS LIST SECTION 9 PARTS LIST SYMBOL NUMBER PART NUMBER DESCRIPTION SYMBOL NUMBER 900 MHz LTR 75W REPEATER PART NO. 242-2009-232 A 003 75W PA/RFIB module A 006 Tx/Rx module A 010 2000 Series power supply 900 MHz 75W PA/RFIB MODULE PART NO.
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER SYMBOL NUMBER Q 501* 30W 900 MHz 24V MRF894 576-0004-821 Q 502* 60W 800 MHz 24V MRF898 576-0004-820 Q 503* 60W 800 MHz 24V MRF898 576-0004-820 R 508* 100 ohm 20W flange mount 569-5001-001 R 509* 100 ohm 100W flange mount 569-5001-002 R 685* 50 ohm 250W flange mount 569-5001-003 U 501 6W 870-950 MHz power mod 544-4001-051 900 MHz 160W PA/RFIB MODULE PART NO.
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PARTS LIST SYMBOL NUMBER EP001 EP002 EP010 EP011 DESCRIPTION PART NUMBER Ferrite bead Ferrite bead 3/8" heat shrink tubing 3/8" heat shrink tubing 517-2002-008 517-2002-009 042-0241-556 042-0241-556 HW013 6-32 machine panhead philips HW014 6-32 panhead philips ZPS HW016 8-32 panhead philips ZPS HW017 10-32 machine panhead phil HW018 6-19 panhead philips ZPS HW019 6-32 machine flathead philips HW020 6-32 x 0.094 nut HW021 8-32 socket head shield screw HW022 8 x 0.
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PARTS LIST SYMBOL NUMBER P 013 P 014 P 015 P 016 P 017 P 018 DESCRIPTION 32-pin DIN female straight 64-pin DIN female straight 32-pin DIN female straight 64-pin DIN female straight 32-pin DIN female straight 64-pin DIN female straight PC001 PC board PART NUMBER SYMBOL NUMBER 515-7082-200 515-7082-201 515-7082-200 515-7082-201 515-7082-200 515-7082-201 RF INTERFACE BOARD PART NO. 023-2008-110 035-2000-210 EXTERNAL CONNECTOR BOARD PART NO.
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PARTS LIST SYMBOL NUMBER F 101 F 102 DESCRIPTION PART NUMBER 2A 250V AC sub-min 2A 250V AC sub-min 534-0017-017 534-0017-017 FH101 Fuse holder PC mount FH102 Fuse holder PC mount 534-1017-001 534-1017-001 SYMBOL NUMBER R 057 R 059 R 061 R 063 R 064 R 065 R 066 R 073 R 074 R 075 R 076 R 078 R 079 R 080 R 081 R 082 R 083 R 084 R 085 R 086 R 087 R 088 R 089 R 090 R 091 R 092 R 093 R 094 R 095 R 100 R 101 R 102 R 103 R 104 R 105 R 106 R 107 R 108 R 109 R 110 R 111 R 112 R 113 R 114 R 115 R 116 R 117
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PARTS LIST SYMBOL NUMBER R 118 R 119 R 120 R 121 R 122 R 123 R 124 R 125 R 126 R 127 R 128 R 129 R 130 R 131 R 132 R 133 R 134 R 135 R 136 R 137 R 138 R 139 R 140 R 141 R 142 R 143 R 144 R 145 R 146 R 147 R 148 R 149 R 151 R 152 R 153 R 154 R 155 R 156 R 157 R 158 R 159 R 160 R 161 R 162 R 163 R 164 R 165 DESCRIPTION 20k ohm ±1% 1206 SMD 20k ohm ±1% 1206 SMD 10k ohm ±1% 1206 SMD 20k ohm ±1% 1206 SMD 10k ohm ±1% 1206 SMD 20k ohm ±1% 1206 SMD 10k ohm ±1% 1206 SMD 20k ohm ±1% 1206 SMD 10k ohm ±1% 1206 SMD
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PARTS LIST SYMBOL NUMBER PART NUMBER DESCRIPTION SYMBOL NUMBER RECEIVE VCO PART NO. 023-2009-800 C 803 C 804 C 805 C 806 C 807 C 808 C 809 C 810 C 811 C 812 C 813 1 pF ±0.1 pF 150V chip 2.7 pF ±0.1 pF 150V chip .47 µF 16V tantalum SMD 4.7 µF 10V tantalum SMD 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 15 µF 20V tantalum SMD 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 3.9 pF 150V chip 5.
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PARTS LIST SYMBOL NUMBER C 256 C 257 C 258 C 259 C 260 C 261 C 262 C 264 C 266 C 267 C 268 C 269 C 270 C 271 C 272 C 273 C 274 C 275 C 277 C 278 C 279 C 280 C 281 C 282 C 284 C 285 C 286 C 287 C 288 C 289 C 290 C 291 C 292 C 293 C 294 C 295 C 296 C 297 C 298 C 299 C 300 C 301 C 303 C 304 C 305 C 306 C 307 DESCRIPTION .1 µF ±10% X7R 1210 .1 µF ±10% X7R 1210 27 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip 3.3 pF ±5% NPO 1206 chip 7.5 pF ±5% NPO 1206 chip 7.5 pF ±5% NPO 1206 chip 4.
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER CH202 2-cavity helical front end CH203 1-cavity helical front end 015-0901-028 015-0901-010 CR201 CR204 CR205 CR206 Hot carrier diode SOT-23 Si 9.1V zener SOT-23 5.6V zener SOT-23 5.
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PARTS LIST SYMBOL NUMBER R 220 R 221 R 222 R 223 R 224 R 225 R 226 R 227 R 228 R 229 R 230 R 231 R 232 R 233 R 234 R 235 R 236 R 237 R 238 R 239 R 240 R 241 R 242 R 243 R 244 R 245 R 246 R 248 R 249 R 250 R 251 R 252 R 253 R 254 R 255 R 256 R 257 R 258 R 260 R 261 R 262 R 263 R 264 R 265 R 266 R 267 R 268 DESCRIPTION 100 ohm ±5% 1206 SMD 180 ohm ±5% 1206 SMD 3.3k ohm ±5% 1206 SMD 2.
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER TP001 TP003 TP004 TP005 TP006 Red tip jack, vert. 0.08 Red tip jack, vert. 0.08 Red tip jack, vert. 0.08 Red tip jack, vert. 0.08 Red tip jack, vert. 0.
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PARTS LIST SYMBOL NUMBER C 429 C 430 C 431 C 432 C 433 C 434 C 441 C 442 C 443 C 444 C 445 C 446 C 447 C 448 C 449 C 450 C 451 C 453 C 460 C 461 C 462 C 463 C 464 C 465 C 466 C 467 C 469 C 470 C 471 C 472 C 474 C 475 C 476 C 477 C 479 C 480 C 481 C 482 C 483 C 484 C 485 C 488 C 496 C 497 C 498 C 499 C 814 DESCRIPTION 27 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip 2 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip 1 pF ±5% NPO 1206 chip 27 pF ±5% NPO 1206 chip
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PARTS LIST SYMBOL NUMBER R 410 R 411 R 412 R 416 R 417 R 418 R 419 R 420 R 421 R 422 R 423 R 424 R 425 R 426 R 427 R 428 R 429 R 430 R 431 R 432 R 433 R 434 R 435 R 436 R 437 R 438 R 439 R 440 R 441 R 443 R 444 R 445 R 446 R 447 R 448 R 449 R 450 R 451 R 452 R 453 R 454 R 455 R 456 R 457 R 458 R 459 R 461 DESCRIPTION 100 ohm ±5% SMD 1206 1k ohm ±5% SMD 1206 8.2k ohm ±5% SMD 1206 270 ohm ±5% SMD 1206 10k ohm ±5% SMD 1206 10 ohm ±5% SMD 1206 12.1k ohm ±1% SMD 1206 2.7k ohm ±5% SMD 1206 3.
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PARTS LIST SYMBOL NUMBER C 510 C 511 C 512 C 513 C 514 C 515 C 516 C 517 C 518 C 519 C 520 C 521 C 527 C 528 C 529 C 530 C 531 C 532 C 533 C 534 C 535 C 536 C 537 C 538 C 541 C 542 C 543 C 544 C 545 C 546 C 547 C 548 C 549 C 550 C 553 C 555 C 556 C 557 C 558 C 559 C 560 C 561 C 562 C 563 C 564 C 567 C 569 DESCRIPTION 1 µF 35V tantalum SMD 56 pF high Q .110 cube .1 µF 35V tantalum SMD 1 µF 35V tantalum SMD .018 µF ±10% X7R 0805 chip 56 pF high Q .110 cube 1 µF 35V tantalum SMD .
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER SYMBOL NUMBER Q 501* 30W 24V 900 MHz MRF-894 576-0004-821 Q 502* 60W 24V 800 MHz MRF-898 576-0004-820 Q 503* 60W 24V 800 MHz MRF-898 576-0004-820 R 501 R 502 R 503 R 504 R 505 R 506 R 507 R 508* R 509* R 510 R 511 R 512 R 513 R 514 R 515 R 516 R 517 R 518 R 519 R 520 R 521 R 522 R 523 R 524 R 525 R 526 R 527 R 528 R 685* 820 ohm ±5% 1206 SMD 12 ohm ±5% 1206 SMD 820 ohm ±5% 1206 SMD 110 ohm ±5% 1206 SMD 1k ohm ±5% 1206 SMD 200 ohm ±5% 1206 SMD 2k ohm ±5%
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PARTS LIST SYMBOL NUMBER C 555 C 556 C 557 C 558 C 559 C 560 C 561 C 562 C 563 C 565 C 566 C 567 C 568 C 702 C 703 C 704 C 705 C 706 C 707 C 708 C 709 C 710 C 711 C 712 C 714 C 715 C 716 C 717 C 718 C 719 C 720 C 721 C 722 C 723 C 724 C 725 C 726 C 727 C 728 C 729 C 730 C 732 C 733 C 734 C 735 C 736 C 737 DESCRIPTION 4.7 µF 16V tantalum SMD 4.7 µF 16V tantalum SMD .018 µF ±10% X7R chip .001 µF ±5% NPO 1206 chip .018 µF ±10% X7R chip 1 µF 16V tantalum SMD 39 pF ±5% NPO 1206 chip .
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER EP701 EP702 EP703 EP704 EP705 EP706 EP707 EP708 EP709 EP710 EP711 EP712 EP713 EP714 EP715 EP716 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 Ferrite bead SMD 1233 517-2503-
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PARTS LIST SYMBOL NUMBER C 662 C 663 C 664 C 665 C 667 C 668 C 669 C 670 C 671 C 672 C 673 C 674 C 675 C 676 C 677 C 678 C 679 C 681 C 682 C 683 C 684 DESCRIPTION 4.7 µF 10V tantalum SMD .001 µF ±5% NPO 1206 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip 27 pF ±5% NPO 0805 chip .
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PARTS LIST SYMBOL NUMBER MP254 MP255 MP256 MP257 MP258 MP261 MP262 MP268 MP270 DESCRIPTION M PA plate align dowel pin PA heat sink PA shield, left PA shield, top Low power PA shield, 1 fan 1/4 hex brass M/F spacer High power LPF PA shield M PA stop PA shield PART NUMBER SYMBOL NUMBER 013-1723-216 014-0771-124 017-2210-026 017-2210-022 017-2210-025 312-7483-024 017-2210-097 013-1723-222 017-2210-095 MP268 M PA stop MP269 Predriver cover shield MP270 PA shield 24V DC fan 3.14" sq x 1.
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER SYMBOL NUMBER 800W POWER SUPPLY MAIN BOARD PART NO.
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER C 198 C 199 C 200 C 201 C 202 C 203 C 204 C 205 C 207 C 208 C 209 C 210 C 211 C 212 C 213 C 214 C 215 C 216 C 217 C 218 C 219 C 220 C 221 C 222 C 223 C 224 C 225 C 227 C 228 C 229 C 230 C 232 C 233 C 234 C 235 C 236 1 µF 35V tantalum SMD 6.8 µF 35V tantalum SMD 6.8 µF 35V tantalum SMD .01 µF ±5% X7R 1206 470 pF ±5% NPO 1206 470 pF ±5% NPO 1206 .047 µF ±5% X7R 1206 1500 µF 35V aluminum 2200 pF ±5% NPO 1206 .
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PARTS LIST SYMBOL NUMBER F 102 DESCRIPTION PART NUMBER SYMBOL NUMBER 10A 250V fastblow AGC fuse 534-0003-036 FH102 Fuse clip 534-1007-001 HW100 HW101 HW102 HW104 HW105 HW106 HW107 HW108 HW109 HW110 HW111 HW112 HW113 HW114 HW115 HW120 Cam5 x 3.795 sil-pad 0.89 x 1.37 sil-pad 1.06 x 4.73 sil-pad 0.83 x 5 Teflon spacer 0.83” Teflon spacer 1.28” Teflon spacer 4-40 3/8” hex socket CPS 6-32 3/8” socket hoodcap 6-32 machine panhead ZPS #4 x 0.046 shoulder washer #4 x 0.040 flat washer NPB #6 x 0.
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PARTS LIST SYMBOL NUMBER R 126 R 127 R 128 R 129 R 130 R 131 R 132 R 133 R 134 R 135 R 136 R 137 R 138 R 139 R 140 R 141 R 142 R 143 R 144 R 146 R 148 R 149 R 150 R 151 R 152 R 153 R 154 R 155 R 156 R 157 R 158 R 159 R 160 R 161 R 162 R 163 R 164 R 165 R 166 R 167 R 168 R 169 R 170 R 171 R 172 R 173 R 174 DESCRIPTION 10 ohm ±5% 1206 SMD 1.
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PARTS LIST SYMBOL NUMBER R 223 R 224 R 225 R 226 R 227 R 228 R 229 R 230 R 231 R 232 R 233 R 234 R 235 R 236 R 237 R 238 R 240 R 241 R 242 R 243 R 244 R 245 R 246 R 247 R 249 R 250 R 251 R 252 R 253 R 254 R 255 R 256 R 257 R 258 R 259 R 260 R 261 R 262 R 263 R 264 R 265 R 266 R 267 R 268 R 269 R 270 R 271 DESCRIPTION 13k ohm ±5% 1206 SMD Zero ohm ±5% 1206 SMD 68 ohm ±5% 1206 SMD 24 ohm ±5% 1206 SMD 180 ohm ±5% 1206 SMD 2k ohm ±1% 1206 SMD 820 ohm ±5% 1206 SMD 100 ohm ±5% 1206 SMD 51 ohm ±5% 2512 SMD 820
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PARTS LIST SYMBOL NUMBER U 112 U 113 U 114 U 115 U 116 U 117 U 118 U 119 U 120 U 121 U 122 PART NUMBER DESCRIPTION SYMBOL NUMBER PWM current mode ML4823 544-2002-034 PWM current mode ML4823 544-2002-034 5V 3A regulator power supply 544-2003-098 Programmable TL431AID 544-2003-097 Programmable TL431AID 544-2003-097 Programmable TL431AID 544-2003-097 Programmable TL431AID 544-2003-097 Opto-isolator SOIC-8 544-2010-006 Opto-isolator SOIC-8 544-2010-006 Programmable volt TL431AID 544-2003-097 Opto-isolator
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER CR115 CR116 CR117 CR118 Switching diode SOT-23 3A ultra-fast diode 13V 1W zener SMT 18V ±5% zener SMT 523-1504-002 523-1507-004 523-2026-130 523-2026-180 EP100 EP101 EP102 EP103 Heat sink insulator TO-220 Copper terminal lug Copper terminal lug Copper terminal lug 574-5005-060 586-0007-072 586-0007-072 586-0007-071 F 101 4A resettable polyfuse 534-0020-001 HW100 HW101 HW102 HW103 HW104 HW105 HW106 HW107 HW108 HW800 4-40 machine panhead ZPS 6-32
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PARTS LIST SYMBOL NUMBER PART NUMBER DESCRIPTION R 159 R 160 R 165 180k ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 2k ohm ±5% 2512 SMD 569-0115-184 569-0115-103 569-0175-202 S 101 Toggle switch on/on rt angle 583-0006-014 U 101 U 102 U 103 U 104 U 105 U 106 U 107 Quad comparator 2901 Programmable voltage reg Programmable voltage reg Dual op amp SO-8 Dual op amp SO-8 Temp sensor LM-35 SO-8 Full temp adjustable LM317T 544-2025-011 544-2003-097 544-2003-097 544-2019-004 544-2019-004 544-2032-003 544-200
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER CR904 CR905 CR906 CR907 CR908 Dual switch diode SOT-23 Dual switch diode SOT-23 Switching diode SOT-23 200V 1.
PAGE 171
PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER Q 905 Q 906 Q 907 Q 908 Q 909 Q 910 Q 911 Q 912 Q 913 Q 914 Q 915 Q 916 Q 917 Q 918 Q 919 Q 920 Q 921 Q 922 Q 923 Q 924 Q 925 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si PNP SOT-23 Si NPN SOT-23 Si PNP SOT-23 Si NPN SOT-23 Si NPN SOT-23 Si PNP SOT-23 Si NPN SOT-23 Si PNP SOT-23 Si NPN SOT-23 Si NPN SOT-23 576-0003-658 576-0003-658 576-0003-65
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER R 974 R 975 R 976 R 977 39k ohm ±5% 1206 SMD 51 ohm ±5% 1206 SMD 15k ohm ±5% 1206 SMD 15k ohm ±5% 1206 SMD 569-0115-393 569-0115-510 569-0115-153 569-0115-153 S 901 S 902 S 903 S 904 S 905 Toggle switch on-none-mom Toggle switch on-none-mom Toggle switch on-none-mom 4-pos recessed DIP switch 4-pos recessed DIP switch 583-0006-010 583-0006-010 583-0006-010 583-5002-104 583-5002-104 U 901 U 902 U 903 U 904 U 905 U 906 U 907 U 908 U 909 U 910 U 911 U 9
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PARTS LIST SYMBOL NUMBER PART NUMBER DESCRIPTION SYMBOL NUMBER MAIN PROCESSOR CARD PART NO. 023-2000-310 C 001 C 002 C 004 C 005 C 006 C 007 C 008 C 009 C 010 C 011 C 012 C 013 C 015 C 016 C 017 C 018 C 019 C 020 C 021 C 022 C 023 C 024 C 025 C 026 C 027 C 028 C 029 C 030 C 031 C 032 10 pF ±5% NPO 1206 chip 20 pF ±5% NPO 1206 chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip 10 pF ±5% NPO 1206 chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .
PAGE 174
PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER R 026 R 027 R 028 R 029 R 030 R 031 R 032 R 033 R 034 R 035 R 038 R 039 R 040 10k ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 4.7k ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 1k ohm ±5% 1206 SMD 1k ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 3.
PAGE 175
PARTS LIST SYMBOL NUMBER C 127 C 128 C 129 C 130 C 131 C 132 C 133 C 134 C 136 C 137 C 138 C 139 C 140 C 141 C 142 C 143 C 144 C 145 C 146 C 147 C 148 C 149 C 150 C 151 C 152 C 153 C 154 C 155 C 156 C 157 C 158 C 159 C 160 C 161 C 162 C 163 C 164 C 165 C 166 C 169 C 170 C 171 C 172 C 173 C 174 C 175 C 176 DESCRIPTION 680 pF ±2% NPO 1206 .0033 µF ±2% NPO 1206 470 pF ±2% NPO 1206 470 pF ±2% NPO 1206 .0047 µF ±5% X7R 1206 .0056 µF ±2% NPO 1206 .
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PARTS LIST SYMBOL NUMBER C 224 C 225 C 226 C 227 C 228 C 229 C 230 C 231 C 232 C 233 C 234 C 235 C 236 C 237 C 238 C 239 C 240 C 241 C 242 C 247 C 249 C 251 C 254 C 255 C 256 C 257 C 258 C 262 C 263 C 264 C 265 C 266 C 267 C 268 C 269 C 270 C 271 C 272 C 273 C 276 C 277 C 278 C 279 C 280 C 281 C 282 C 283 DESCRIPTION .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .01 µF ±10% X7R chip .
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER HW102 Rivet snap 0.142 dia 574-9015-050 J 100 J 101 J 102 J 103 J 104 J 105 J 106 J 301 105-2204-105 515-2002-011 515-2001-011 105-2203-101 515-2001-011 515-7100-003 515-7100-005 515-5006-041 Green horizontal tip jack .080 Speaker jack 0.1 enclosed 3.6mm jack enclosed Black horiz tip jack .080 3.
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PARTS LIST SYMBOL NUMBER R 175 R 176 R 177 R 178 R 179 R 180 R 181 R 182 R 183 R 184 R 185 R 186 R 187 R 188 R 189 R 190 R 191 R 192 R 193 R 194 R 195 R 196 R 197 R 198 R 199 R 200 R 201 R 202 R 203 R 204 R 205 R 206 R 207 R 208 R 209 R 210 R 211 R 212 R 213 R 214 R 215 R 216 R 217 R 218 R 219 R 220 R 222 DESCRIPTION 4.3k ohm ±5% 1206 SMD 6.
PAGE 179
PARTS LIST SYMBOL NUMBER R 276 R 277 R 279 R 280 R 281 R 282 R 283 R 284 R 285 R 286 R 288 R 289 R 290 R 291 R 292 R 293 R 294 R 295 R 296 R 297 R 298 R 299 R 300 R 301 R 302 R 303 R 304 R 305 R 306 R 307 R 308 R 309 R 310 R 311 R 312 R 313 R 314 R 315 R 316 R 317 R 318 R 319 R 320 R 321 R 322 R 323 DESCRIPTION 18k ohm ±5% 1206 SMD 5.1k ohm ±5% 1206 SMD 150k ohm ±5% 1206 SMD 150k ohm ±5% 1206 SMD 1M ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD Zero ohm ±5% 1206 SMD 10k ohm ±5% 1206 SMD 2.
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PARTS LIST SYMBOL NUMBER PART NUMBER DESCRIPTION U 157 U 158 U 159 U 160 U 161 U 162 U 163 U 164 U 165 U 166 U 167 D flip flop SOIC 74HC574 Quad analog sw SOIC DG202 Quad analog sw SOIC DG202 9 bit x 64 word FIFO DIP-28 9 bit x 64 word FIFO DIP-28 Dr/Rcvr RS232C V.
PAGE 181
PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER J 504 J 505 3-pin single inline header 4-pin single inline header 515-7100-003 515-7100-004 K 500 K 501 K 502 K 503 12V SPDT 1A relay submin 12V SPDT 1A relay submin 12V SPDT 1A relay submin 12V SPDT 1A relay submin 567-2002-021 567-2002-021 567-2002-021 567-2002-021 L 501 3 µH filter choke PC mount 542-5007-031 P 500 P 501 P 503 P 504 P 505 64-pin DIN male right angle 32-pin DIN male right angle 2-pos shorting socket 2-pos shorting socket 2-pos
PAGE 182
PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER S 500 S 501 S 502 S 503 S 508 4-pos recessed DIP switch 4-pos recessed DIP switch 4-pos recessed DIP switch 4-pos recessed DIP switch Toggle switch on/on rt angle U 500 U 501 U 503 U 504 U 505 U 506 U 507 U 508 U 509 U 510 U 511 U 512 U 513 U 514 U 517 U 518 U 520 U 521 U 523 1 of 16 demux SOIC 74HC154 544-3766-154 1 of 16 demux SOIC 74HC154 544-3766-154 D flip flop SOIC 74HC574 544-3766-574 D flip flop SOIC 74HC574 544-3766-574 D flip flop SOIC 74HC57
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SCHEMATICS AND COMPONENT LAYOUTS SECTION 10 SCHEMATICS AND COMPONENT LAYOUTS TRANSISTORS TRANSISTORS Part Number 576-0001-300 576-0002-603 576-0003-600 576-0003-602 576-0003-604 576-0003-612 576-0003-636 576-0003-657 576-0003-658 576-0004-098 576-0004-820 576-0004-821 576-0006-109 DIODES 523-1504-002 523-1504-012 523-1504-015 523-1504-016 523-1504-023 523-2016-180 523-2016-479 523-2016-519 523-2016-629 523-2016-919 523-5004-002 Basing Diagram 1 2 1 1 3 1 1 1 1 3 4 4 5 Identification 1R 6 6 6 6 6 6 6 6
PAGE 184
SCHEMATICS AND COMPONENT LAYOUTS Figure 10-1 RF MODULE INTERFACE CONNECTOR Figure 10-2 BACKPLANE CABLE CONNECTIONS October 1999 Part No.
PAGE 185
OCXO DRAWER FRONT/REAR PANEL FIGURE 10-3 OCXO DRAWER FIGURE 10-6 GND RX TX REPEATER REAR VIEW FIGURE 10-4 RFIC MPC MAC IAC PA EXCITER/RECEIVER REPEATER FRONT VIEW FIGURE 10-5 10-3 REPEATER CABINET EXPLODED VIEW FIGURE 10-7 October 1999 Part No.
PAGE 186
REAR CONNECTOR BOARD A10 RF INTERFACE (023-2008-110) BACKPLANE BACKPLANE A9 J1 J2 A5 P11 P3-P5-P7-P12 P14-P16-P18 J2 6 6 24 HSDB+ 5 5 56 HSDB- FWD/REV PWR DETECT C11 J101 A8 1 1 1 2 18 19 +15V W115 W655 PWR OUT WO 652 WO 655 C12 P9 RF MUX 3 INH 14 RF MUX 3 INH REFLECTED POWER W656 W126 ISOLATOR WO 656 R685 C13 P3-P5-P7-P12 P14-P16-P18 4 4 25 IRDB+ 3 3 57 IRDB- 7 2 20 TLA DB+ HS CS EX 16 8 1 52 TLA DB- SYN CS EX 26 PC STR 15 LPTT 21 3 2 2 4 19 20 5
PAGE 187
21 58 32 31 64 63 27 59 30 62 29 28 61 60 24 56 25 57 20 52 19 51 26 23 22 17 49 18 50 53 54 55 48 47 16 15 46 14 45 13 44 12 43 11 42 10 41 9 40 8 39 7 38 6 37 5 36 4 35 3 34 2 33 1 -5V +15V A18 A19 A16 A17 A14 A15 A12 A13 A10 A11 A8 A9 A6 A7 A4 A5 A2 A3 A0 A1 D6 D7 D4 D5 D2 D3 D0 D1 MREQ RD WR MSTB COM 54 COM 55 COM 50 COM 53 SYNC IN COM 17 COM 49 RNT TX DATA COM 26 RNT RX DATA +15V FILTERED TLA-
PAGE 188
R170 C126 R63 R65 R64 R66 2 20 WO119 WO145 GROUND 8 WO125 RF OUT 4 WO124 RF OUT 3 WO123 RF OUT 2 CR108 R84 R85 R137 R129 R138 C136 R131 WO122 RF OUT 1 October 1999 Part No.
PAGE 189
R137 22k J1 1 STR PC STR 2 R138 22k R135 22k 2 SER R136 22k 1 Q8 11 Q7 12 3 CLK 4 Q6 13 U103 23 MC14094BD Q5 14 +5V 31 5 WO 101 6 WO 102 15 R139 10k Q4 7 WO 104 16 WO 105 17 WO 106 24 WO 108 25 WO 109 32 WO 110 33 WO 111 34 WO 112 35 WO 113 R140 10k 15 OE R142 10k R125 20k U102A 2 R95 1k 2904 1 3 R106 10k 4 Y7 R150 10k R147 10k R146 22k 2904 7 R144 22k C116 .018 1 Y0 13 224 R81 470 C136 39pF CR108 5.1V U112A 1 C133 39pF + 3 224 C134 .
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L209 Z202 Z201 EP2 C209 6 4 3 L206 L205 C280 L204 U201 C208 CH201 C311 C277 C276 R295 C207 R206 L207 C271 C279 C269 R294 EP1 C202 C203 October 1999 Part No.
PAGE 191
SCHEMATICS AND COMPONENT LAYOUTS Figure 10-14 RECEIVE VCO COMPONENT LAYOUT 10-9 October 1999 Part No.
PAGE 192
SCHEMATICS AND COMPONENT LAYOUTS NOTES: +12V 1. RESISTORS ARE IN OHMS AND CAPACITORS IN MICROFARADS UNLESS OTHERWISE SPECIFIED. TRANSMIT VCO ONLY. 2 3 TX C804 2.7pF 2.2pF C805 .47uF .1uF C808 27pF C806 4.7uF C812 3.9pF 1uF 3.3pF C813 5.6pF 4.7pF R804 4.7k 12k Q801 C803 1pF 1.1pF 1300 L805 .039uH .022uH R802 3.6k + +12V C807 27pF R801 10 RX DESIG C809 15 WO 805 WO 801 R814 10k MOD IN C802 .3pF 2 2 WO 804 CAPACITIVE MULTIPLIER C810 27pF L803 .
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RX +12V R202 200 R203 200 + C336 4.7 C311 .001 C337 56pF RX +12V + C203 4.7 C204 33pF L204 L201 A201 RF IN L202 L203 L205 RF AMP C201 5.6pF L226 L221 C202 4.3pF C371 1.3pF MIXER C205 6.8pF R201 2.7k C208 33pF L228 L227 4 RF C372 1.3pF Q201 3636 5 U201 IF LRMS-2H 2 GND A C207 3pF R204 270 TO OCXO R239 51 8 C241 .1 R320 10k OSC IN V 27 WO 15 C370 27pF U205 MC145151DW2 28 LOCK DET HS LK RX 19 C324 100pF R219 100 R220 100 C211 .01 R211 51 C216 5.6pF C293 .
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R405 R404 R407 C401 R401 C400 C419 R430 C416 R418 R485 C417 EP402 EP403 R440 1 20 R444 11 C483 5 U404 1 4 R447 R446 R445 EXCITER COMPONENT LAYOUT FIGURE 10-17 10-12 R438 C482 C485 C484 10 R441 R437 R439 C424 C422 + C428 R429 R419 8 C423 + C421 R435 R448 October 1999 Part No.
PAGE 195
SCHEMATICS AND COMPONENT LAYOUTS *C814 IS PLACED ON TOP OF R807 C814* Figure 10-18 TRANSMIT VCO COMPONENT LAYOUT 10-13 October 1999 Part No.
PAGE 196
SCHEMATICS AND COMPONENT LAYOUTS NOTES: +12V 1. RESISTORS ARE IN OHMS AND CAPACITORS IN MICROFARADS UNLESS OTHERWISE SPECIFIED. TRANSMIT VCO ONLY. 2 3 TX C804 2.7pF 2.2pF C805 .47uF .1uF C806 4.7uF 1uF C812 3.9pF 3.3pF C813 5.6pF 4.7pF R804 4.7k 12k Q801 C803 1pF 1.1pF 1300 L805 .039uH .022uH C808 27pF R802 3.6k + +12V C807 27pF R801 10 RX DESIG C809 15 WO 805 WO 801 R814 10k MOD IN C802 .3pF 2 WO 804 CAPACITIVE MULTIPLIER C810 27pF L803 .
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+12V R418 10 C412 27pF +5V F IN 1 3 Vcc C405 .001 C402 .1 C477 27pF 15 N4 BUFFERED OCXO IN L401 10nH C414 .01 C415 100pF R421 3.3k 17 N6 C413 .001 21 T/R Q402 3658 R422 3.3k R423 270 27 OSC IN C400 27pF R420 2.7k Q401 3658 16 N5 J403 R485 1k C411 .1 U401 MC145151DW2 8 R C403 .1 9 V C404 .1 10 FV +5V J401 R488 10k C488 .1 R401 10k WO431 R461 3.
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8 5 WO511 EP502 EP507 L502 C506 C507 C518 +C505 1 2 C502+ +C513 C505 C520 B 4 E C542 EP510 C538 B October 1999 Part No.
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+26V +15V POWER CONTROL EP501 WO 505 EP502 C508 56pF + C510 1 C509 27pF EP508 + C505 1 C506 .018 C518 56pF C507 56pF C527 56pF EP507 C528 .018 C530 .001 C529 .01 + C531 6.8 + C534 6.8 EP506 C535 .018 EP504 EP520 + C516 1 L501 C517 .018 C515 56pF C532 27pF EP503 C502 1 + C503 .1 C504 .018 4 + C513 1 2 VS1 1 dB PAD R528 12 1 50 WO 511 C501 27pF R502 12 C514 .018 C511 56pF 3 EP505 VS2 U501 MHW806 RF IN C511 56pF RF OUT 4 50 C523 12pF C588 1.
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R509 C509 C511 L501 C515 C514+ L502 +C512 C516 EP513 5 EP508 1 C523 C530 C525 C565 C552 5 L503 L504 C744 4 C567 R521 CR501 R517 C762 R702 C E B Q701 C568 C B EP703 EP705 C771 C707 C708 + C706 + C711 C710 C712 C709 B EP701 R704 C705 WO503A EP704 October 1999 Part No.
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+15V EP503 DRIVER EP501 + C520 .1 C518 .018 + C519 1 C502 43pF R502 0 WO509 RF INPUT + C514 .1 + C512 1 C530 56pF C513 .018 C515 56pF L501 +26V C529 56pF EP504 EP505 C533 .018 EP506 C537 + C538 + C539 56pF .1 1 C540 .018 R507 360 L502 C543 56pF C505 270pF C506 390pF + C531 .1 + C532 1 C524 .1 C523 .018 + C525 1 2 VS1 R508 120 R507 120 C508 39pF C509 270pF C510 390pF 3 VS2 C534 56pF C546 .001 C545 .018 + C547 6.8 + C549 6.8 C550 .018 U501 PHW2820-1 1 RF IN C511 .
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WO650 R685 WO651 WO653 L655 R670 1 8 C661 October 1999 Part No.
PAGE 203
RF OUT WO 651 WO 650 WO 653 REFLECTIVE POWER LOAD RF POWER IN CIRCULATOR R685 50 250W L657 12.5nH 50 R651 51 R662 10k 2 2904 1 + 3 R664 160 WO 654 C664 27pF 7 + C672 27pF R665 10k R668 51 C669 27pF R660 10k C654 12pF R663 5k L654 .033uH R671 0 L653 .039 R670 160 R676 10k R677 10k R673 20k B A C667 27pF CR651 C653 27pF A L655 12.5nH C677 27pF C674 27pF L656 .
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DC INPUTS P913 C928 4 J909 DC ALARM 1 R901 C901 C903 Y901 OCXO 1 R903 C902 8 U905 1 14 J911 AC ALARM 1 NC 2 3 C914 R957 R956 R955 R958 J910 ENABLE 1 R952 Q915 R951 R948 R946 R977 R972 R971 R968 R970 R969 1 R962 Q921 R954 R953 R967 R966 R965 R964 DS905 AC FAIL DS906 R963 8 7 C938* DC FAIL DISABLE 2 3 Q923 C925 Q924 7 8 U901 14 R919 R961 C915 NO C908 R959 R949 R950 CR906 Q902 R918 R917 C907 R876 R960 Q916 C937 2 3 1 R902 C904 8 C936 NC NO Q90
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RF OUTPUT ALARM J901 7 RF ALARM OUT + J902 INPUT BNC 10 MHz FROM WWV WO 902 C901 150pF +5V +5V C902 .01 R903 270 4 5 R901 1k U901B 6 2 R902 10k 1 CR901 3 RF OUT OCXO 1 5 Y901 DC IN 10 MHz C925 .01 CASE GND 1 2 4 5 U901A 74HC00 U901D U904D 12 11 11 10 13 U902B 6 U906A 1 DS7830J 2 5 3 4 9 10 U901C L904 .39uH L905 1.2uH R975 51 C923 470pF C916 .01 L906 .
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J101 230V AC 115V AC S101 1 2 1 3 4 AC INPUT 5 3 6 U101 4 2 3 AC FUSE F101 3 2 1 U102 7 CR104 CR103 C103 + + C102 + C106 T101 + C112 + C104 C101 + CR102 6 CR101 2 C109 + C107 8 4 C111 3 + C105 R102 R101 2 1 C110 C108 CR105 1 5 WO101 WO102 AC SENSE +5V October 1999 Part No.
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S101 T101 24VA 115V 6 J101 1 F101 1A 4 WO101 AC SENSE 5 1 WO103 +15V OUT CR101 5 2 3 CR102 6 2 4 3 2 7 AC POWER INPUT 2 + CR103 230V CR104 10 C101 1000 + C102 6.8 V IN C103 .001 8 U101 VOUT A LM117T VOUT B +13.8V 4 ADJ R102 220 R101 2.49k October 1999 Part No. 001-2009-201 + +15V CR105 1 3 10-25 3 C104 220 + + C106 15 C107 .001 + C108 2200 1 + C109 15 C110 .001 U102 V IN VOUT A LM29940T-5 GND 3 2 WO102 +5V OUT C111 .001 + C112 4.
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20 21 Y2 CR1 R18 R17 3 2 1 6 8 7 9 10 9 8 20 11 10 5 R9 U8 4 U23 U32 8 1 J4 11 1 3 5 1 16 10 O N 1 8 14 1 20 1 S3 4 7 8 5 R5 R13 U30 1 40 CR6 16 1 R7 R11 74 54 S2 R6 R8 8 7 Y1 75 53 U31 R26 C22 1 14 O N 15 12 13 7 9 8 14 1 U5 U27 84 2 1 U15 8 7 8 1 R34 32 1 U24 1 24 33 11 5 4 32 12 15 28 14 J6 U18 4 5 R3 R16 1 8 U17 1 2 3 U25 14 1 U22 C6 R15 1 29 32 5 Z2 + C18 Z1 + C17 17 16 U28 1 33 1 64 32 20 13
PAGE 209
P1 50 MAIN MICROPROCESSOR +15V 51 A0 42 CR1 OPERATIONAL BLINKING A1 10 A2 41 A3 ON = HIGH POWER OFF = LOW POWER 9 ON = LTR OFF = MULTI-NET 5 A6 39 A7 7 R2 2.
PAGE 210
U7A 74HC32 1 U6C 5 6 U20D 9 MSTB P1-16 (1) 8 10 U4-15 (1) U2C 3 2 U4-14 (1) 12 11 13 V25 DATA BUS (7:0) RX FIFO 15 TX FIFO 4 A0 5 D0 A1 6 D1 Q0 24 D0 A2 7 D2 Q1 23 D1 8 D3 Q2 22 D2 S1 SO 26 Q0 24 A0 A3 Q1 23 A1 A4 27 MR Q2 22 A2 A5 10 D5 Q4 20 D4 5 D0 Q3 21 A3 A6 11 D6 Q5 19 D5 A4 A7 12 D7 Q6 18 D6 27 MR Q7 17 D7 3 DIR U27-67 (1) U27-11 (1) OE D0 D1 U9 6 D1 74HC7030 Q4 20 D2 7 D2 Q5 19 A5 D3 8 D3 Q6 18 A6 D4 9 D4 Q7 17 A7 D5 1
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4 24 U103 13 12 12 1 U133 R217 CR119 R183 R184 R195 R196 4 C289 R178 5 1 8 U166 C290 16 1 16 C197 R181 1 C288 1 1 16 1 16 R263 R262 4 5 R297 U153 U116 CR107 C120 9 8 9 8 14 1 C229 R116 14 1 R125 R123 C113 C115 1 8 7 1 16 16 1 1 8 7 16 1 7 8 U154 U102 C199 C162 9 8 8 9 R299 5 4 U138 8 CR100 U159 U114 U101 5 C134 4 U135 8 U123 C175 R124 R216 R127 CR101 C118 R119 CR102 R122 R120 8 U147 R259 1 8 U147 5 C218 C300 R266
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WO 114 WO 115 40 1 14 15 10 8 11 1 U119 4 5 R175 R171 R172 10 U161 U112 U111 1 1 1 7 14 8 C184 10 5 8 5 U149 4 20 11 R245 U157 WO WO 116 118 WO 117 20 11 1 7 14 8 R164 C269 + 1 1 28 1 20 15 14 21 1 R322 R323 R276 CR106 1 14 15 10 11 WO 126 R302 14 R301 20 U106 J106 8 3 + C295 5 2 1 U156 WO 125 7 8 9 1 20 CR109 CR110 CR108 1 8 U160 5 1 16 1 20 1 28 U110 C156 R199 R222 C307 12 13 1 24 10 24 1 U105 U107 + C246 R239 +C
PAGE 213
D1 Q1 19 U108 3 D2 74HC573 Q2 18 D2 4 D3 Q3 17 U113C-9 (2) RX MUTE GATE D3 5 D4 Q4 16 U114A-1 (2) RX OPTION GATE D4 6 D5 Q5 15 U115B-8 (2) RX VOICE GATE D0 ADDRESS LATCH 2 D1 U115A-1 (2) VOTER AUDIO MUTE GATE U114D-16 (2) LOCAL AUDIO MUTE GATE A0 42 A0 A1 10 A1 A12 23 A Q4 5 D5 7 D6 Q6 14 U116B-8 (2) RX AUDIO GATE A2 41 A2 A13 22 B U133 6 74HC574 Q5 D6 8 D7 Q7 13 U115C-9 (2) RX VOICE TO BACKPLANE A3 9 A3 A14 21 C Q6 7 D7 9 D8 Q8 12 U116A-1 (2) FSK TO AUDIO G
PAGE 214
+5V + C295 220 R247 54.9k 3 R281 1M C236 .001 U121B 2904 7 6 R102 147k C102 .001 C239 68pF C104 100pF +1.25 V 5 + R294 1k C279 .22 SOURCE R114 18k 3 C276 .0022 C237 .033 C277 .0047 R105 100 U122B 2904 7 6 C111 47k C278 .0068 C238 .047 C239 .068 R108 110 C108 .1 5 + C112 .01 R111 18.2k C109 .1 10 + U122D 2904 14 13 3 R109 1.07M + R284 10k NORMAL RX U157-15 (1) 16 1 5 C116 .001 U135B MC33178 7 U113D RX SQUELCH ACTIVE GATE 14 NOISE RECTIFIER R117 6.
PAGE 215
S100-1 (2) C154 .1 S100 P100 TXS+ 3 2 15 R191 75k R196 300 SECONDARY AUDIO FROM RNT 3 14 4 13 AUDIO AMPLIFIER U131C 3303 8 9 R265 2.2k C153 .1 R193 75k U131D 3303 14 13 12 + R192 75k U153A DATA LEVEL TEST GATE 3 2 C156 .1 R198 100k 16 U107-18 (1) TXS TO FSK U110-5 (2) TO TX FSK J103 U153C-10 (2) REPEAT GATE COMPANDOR OPTION A301-5 1 U107-13 (1) DATA LEVEL TEST C282 .
PAGE 216
WO 503 WO 504 1 R552 C514 C515 CR535 8 5 1 4 R547 2 3 J503 1 1 3 4 6 R561 CR527 R528 8 5 4 1 R546 4 1 C536 S503 S500 8 5 R506 CR528 C500 1 1 14 14 7 CR537 10 1 10 1 1 3 1 3 C536 C518 4 6 R560 WO 506 WO 510 WO 507 WO 511 6 4 1 2 8 5 1 8 9 WO 509 C531 F501 C539 8 1 3 C562 L501 6 4 R530 CR526 Z500 Z501 C529 C533 C530 + C522 + + C523 WO WO 517 514 R531 4 C536 1 R525 5 WO 515 WO WO WO 512 516 513 F502 4 1 C536 WO 508 S501
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P500 P500 +5V D0 46 R536 10k D1 14 D2 45 ADDRESS LATCH D3 13 A16 D4 44 23 A G1 18 D0 U501 G2 19 74HC154 D5 12 A17 22 B D1 3 D2 D6 43 A18 21 C D2 4 D3 D7 11 A19 20 D D3 5 D4 D4 6 D5 D5 7 D6 D6 8 D7 A12 36 A13 D3 4 4 ADDRESS LATCH A14 35 A15 18 3 A12 A16 34 2 A13 22 B A18 33 A14 21 C A19 A15 A17 1 MREQ 15 D7 G1 23 A O3 19 U518 74HC574 U500 74HC154 1 OC Q6 14 20 D O2 3 19 G2 O5 6 U508C 6 5 Q3 17 U508A 74HC906 2 1 Q5 15 U508E 10 11 U508D 8 9 Q4
PAGE 218
P7 P5 P3 P18 P16 1 33 1 33 1 33 1 33 1 33 P14 1 33 P12 P1 1 33 1 33 32 64 32 64 P9 F3 F2 32 64 32 64 32 64 32 64 32 64 32 64 F1 P8 P6 P4 P2 P17 P15 P13 1 17 1 17 1 17 1 17 1 17 1 17 1 17 16 32 16 32 16 32 16 32 16 32 16 32 16 32 October 1999 Part No.
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P10 1 2 25 26 WO16 WO17 P11 1 6 WO2 WO6 WO4 WO1 WO7 WO3 WO13 WO5 WO8 J2 J1 1 1 2 33 34 10-37 2 33 34 October 1999 Part No.
PAGE 220
IAC SLOT P1 P3, P5, P7, P12, P14, P16, P18 A19 A17 A15 A13 A11 A9 A7 A5 A3 A1 D7 D5 D3 D1 MREQ MSTB WO 16 WO 17 SYNC IN COM 17 COM 50 SYNC IN +15V FILT P11 1 33 2 34 3 35 4 36 5 37 6 38 7 39 8 40 9 41 10 42 11 43 12 44 13 45 14 46 15 47 16 48 17 49 18 50 A18 A19 A16 A17 A14 A15 A12 A13 A10 ALARM 1 IN + A8 ALARM 2 IN + A6 ALARM 3 IN + A4 ALARM 4 IN + A2 SQUELCH ENABLE A0 EXT REQ 2 D6 D7 D4 D5 D2 D3 D0 D1 RD MREQ WR MSTB COM 49 COM 1
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C190 R251 C213 C214 C191 R255 C195 R108 R110 R302 R109 R306 C104+ +C105 R271 R270 C204 R245 CR102 CR111 C102 C193 C194 R258 U113 C203 R263 R309 R269 U118 R259 R264 R256 C192 R138 CR113 R305 R153 C109 R257 R137 R118 C151 C234 R139 C201 C200 + C172 R188 C157 R135 C154 C155 R184 R184 U108 R230 R170 R169 R136 U106 R171 R189 +C198 R261 R260 C196 +C153 U109 R176 C150 R172 CR122 R182 C233 C185 CR119 U104 C134 + C232 R178 U104 Q110 Q111 C133+ R219 R218 C1
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+ + C165 C187 L103 C166 W109 + + R216 C209 + W115 T108 T109 L105 L107 + L102 W111 R254 CR129 C188 L104 EP101 W113 CR141 EP105 CR135 RV102 RT101 RT102 C169 W107 C163 + C186 T101 CR132 U114 Q132 + CR126 Q125 U111 + C205 + R113 C106 EP103 + EP104 C101 J102 R114 J101 Q116 CR109 Q118 T105 CR128 W116 + C143 T106 W105 T106 C111 + L101 W106 + C144 EP106 + W104 W110 W111 C107 C110 + CR121 F102 + A803 W112 CR145 C142 Q101 C145 October 19
PAGE 223
18,19,20 PRE-CONTROLLER 16,17 12,13 L107 EP105 DC INPUT (+) RED + CR106 7,8 IN RUSH CURRENT LIMITERS RT101 RT102 R117 330 11 1 9,10 EP108 150V DC BATTERY BACKUP +15V POWER FACTOR CHOKE 14,15 C104 1 + C105 1 +400V T105 + C106 1500 R116 36k CR105 CR145 R128 51 + C107 1500 + C110 330 + C111 330 R101 330k EP104 DC INPUT (-) BLACK EP109 HV GROUND BATTERY BACKUP R105 330k R102 330k R106 330k R103 240k R107 330k C103 .
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+15V BUCK CONTOLLER I REF 11 U112 R233 3.3k C182 470pF R234 1k V REF 16 R228 2k NI 2 C173 .1 R220 2k 5 R T R223 13k EA OUT 3 L103 WO 115 C175 .22 C173 .0022 8 SS + C178 1 + C165 1500 + C166 1500 C167 .01 R215 6.2k + C169 1500 C170 .01 WO 107 WO 108 R221 36k HIGH CURRENT OUT +15V DC OUTPUT GROUND INV 1 R224 0 C T 6 +15V R216 1k Q127 3600 R219 470 R217 1.2k 15 Vcc C176 R225 .001 68 13 VC C181 .01 + C180 6.8 12 GND Q128 3612 C172 .01 R315 820 R218 4.
PAGE 225
POWER SUPPLY FILTER BOARD COMPONENT LAYOUT FIGURE 10-48 L1 1.8uH F1 20A L2 8.67nH BRN AC HOT RV1 EARTH GROUND C1 .22 C3 .0022 C2 .22 C4 .0022 NEUTRAL CHASSIS GROUND R1 1M C5 .22 RV2 CR1 RED BLU BLK GRN/YEL POWER SUPPLY FILTER BOARD SCHEMATIC FIGURE 10-49 10-43 October 1999 Part No.
PAGE 226
C131 C132 R158 B C C112 E 5 C105 Q111 MH107 + + R144 W102 C110 + 8 1 4 K101 R143 CR118 R141 EP102 Q105 R142 R152 R157 E C B U107 C107 5 R156 4 F101 W106 R159 U105 W103 C114 8 1 U106 C129 R154 C155 R153 R101 C130 R160 CR116 CR101 C126 R111 C101 U107 2 R165 1 3 R104 R102 R107 B C E R108 R112 R113 R127 R130 R129 C104 5 R115 CR104 4 8 1 R147 R146 5 + C103 CR114 C115 R122 R148 R149 R151 R150 R145 4 R144 C125 8 1 U104 4 C107 U103 R124
PAGE 227
BATTERY +24V F101 4A +26V HIGH CURRENT TRACE (30A) C101 .01 INPUT RECTIFIER FILTER R111 51 +24V EP101 Q101 Q102 6026 6026 HIGH CURRENT GROUND W103 5 DC INPUT (+) 220 +26.5V DC OUTPUT W102 2 CR113 + C105 + C119 REMOTE ENABLE ON/OFF R136 3.3k 1000 U107 VIN LM317M R137 3.3k V OUT BATTERY INPUT +24V DC R102 330 C106 .
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+5V EP106 C106 .01 EP101 EXPAND IN (WO101 MAC) C103 1 3 + + RECT IN 1 5 C109 1 V REF GROUND TO 10 COMP CAP2 + R102 39k 1 3 B 4 12 + 1 COMP IN I REF 7 5 4 7 4 2 5 8 5 3 6 9 6 8 6 9 10 11 12 C107 4.
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APPENDIX A 900 MHz CHANNEL FREQUENCY CHART Program Channel Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 FCC Channel Number Repeater Transmit Frequency Repeater Receive Frequency Program FCC Channel Channel Number Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 935.0125 935.0250 935.0375 935.0500 935.0625 935.0750 935.0875 935.1000 935.
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900 MHz CHANNEL FREQUENCY CHART Program FCC Channel Channel Number Number 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 October 1999 Part No.
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900 MHz CHANNEL FREQUENCY CHART Program FCC Channel Channel Number Number 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 Repeater Transmit Frequency Repeater Receive Frequ
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900 MHz CHANNEL FREQUENCY CHART Program FCC Channel Channel Number Number 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 October 1999 Part No.
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900 MHz CHANNEL FREQUENCY CHART Program FCC Channel Channel Number Number 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 Repeater Transmit Frequency Repeater Receive Frequency 939.7125 939.7250 939.7375 939.7500 939.7625 939.7750 939.7875 939.8000 939.8125 939.8250 939.8375 939.8500 939.8625 939.8750 939.8875 939.9000 939.9125 939.9250 939.9375 939.9500 939.9625 939.
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