Two-Way Radio User Manual

ManualsBrandsViking ManualsTwo-Way Radio242-2009-632

1-1

October 1995

Part No. 001-2008-202

SERVICE MANUAL

VIKING

900 MHz LTR-Net

75W-160W Repeater

Part No. 242-2009-632/634

First Printing

March 1999

Part No. 001-2009-600 3-99mwp Printed in U.S.A.

Summary of content (260 pages)

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SERVICE MANUAL VIKING® VX 900 MHz LTR-Net® 75W-160W Repeater Part No. 242-2009-632/634 First Printing March 1999 Part No. 001-2009-600 3-99mwp 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-Net REPEATER PART NO. 242-2009-632/634 Copyright© 1999 by Transcrypt International, Inc. Transcrypt International, Inc. designs and manufactures two-way radio equipment to serve a wide variety of communications needs. Transcrypt International Inc. produces EFJohnson® brand 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 (CONT’D) 1 INTRODUCTION AND OPERATION 1.1 1.2 1.3 1.4 SCOPE OF MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 REPEATER IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 MODEL NUMBER BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 1.7 1.8 1.9 1.10 1.11 1.12 GROUNDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 PROTECTION GUIDELINES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 UNPACKING AND INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 4.6 4.7 4.8 4.9 TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXCITER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POWER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 6.2 6.3 6.4 6.5 6.6 6.7 LOCK DETECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 BUFFER AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 RF AMPLIFIERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 6.8 6.9 6.10 6.11 6.12 6.13 BATTERY BACK-UP MODULE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30 CHARGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) J500 A D LEVEL TEST POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J501 GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J502 +15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 7.10 BATTERY CHARGER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24 8 SERVICING 8.1 8.7 8.8 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 PERIODIC CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 2000 SERIES REPEATER POWER SUPPLY WIREHARNESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-19 800W POWER SUPPLY MAIN BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20 AC FILTER BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25 BATTERY BACK-UP . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 10-40 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 INTERFACE ALARM CARD SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-35 BACKPLANE COMPONENT LAYOUT (CARD SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-36 BACKPLANE COMPONENT LAYOUT (CABLE SIDE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 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 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 6-24 6-25 6-26 7-1 7-2 7-3 7-4 7-5 7-6 7-7 REPEATER CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 INPUT ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TABLE OF CONTENTS (CONT’D) 7-8 7-9 7-10 7-11 7-12 7-13 7-14 7-15 7-16 7-17 7-18 7-19 7-20 7-21 7-22 7-23 7-24 7-25 7-26 7-27 7-28 7-29 7-30 7-31 8-1 8-2 8-3 8-4 8-5 160W PA TEST SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10 RECEIVER TEST SETUP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11 EXCITER TEST SETUP . . .
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TABLE OF CONTENTS (CONT’D) xii
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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-Net® Repeater, Part No. 242-2009-632/634. This repeater is programmed with a laptop or personal computer using the repeater software, Part No. 023-9998-459.
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INTRODUCTION AND OPERATION 1.6 ACCESSORIES System control is accomplished by the exchange of data messages between radio and repeater. The LTR-Net system trunks up to 20 channels by utilizing continuous subaudible digital data applied to the RF carrier 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 1.7 PRODUCT WARRANTY 2000 Series Service Kit- This kit includes an extender card, extender cables, TIC bias cable and programming cable. These items are used when tuning the repeater and while troubleshooting. The warranty statement for this transceiver is available from your product supplier or from the Warranty Department Transcrypt International, Inc.
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INTRODUCTION AND OPERATION Return Authorization (RA) numbers are not necessary unless you have been given one by the Field Service Department. RA numbers are required for exchange units or if the Field Service Department wants to be aware of a specific problem. If you have been given an RA number, reference this number on the Factory Repair Request Form sent with the unit. The repair lab will then contact the Field Service Department when the unit arrives. you.
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INTRODUCTION AND OPERATION 1.13 REPEATER OPERATION CR1 blinking; MPC is operational, CR2 on; high power, off is low power and CR5 on; indicates an LTR Repeater. 1.13.1 MAIN PROCESSOR CARD (MPC) 1.13.2 TEST MODE Refer to Figure 1-2. • Programming Jack 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.
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INTRODUCTION AND OPERATION Table 1-2 ACTIVE REPEATER ALARMS Alarm No. 0 1 2 3 4 5 6 7 8 9 10 11 13 15 16 17 18 19 20 21 32 33 34 35 36 37 38 39 40 41 42 DS1 0 1 2 3 4 5 6 7 8 9 A B D F 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 9 A March 1999 Part No.
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INTRODUCTION AND OPERATION • 1.13.3 MAIN AUDIO CARD (MAC) S508 turns the power supply DC voltages on and off from the IAC in the front of the repeater. Refer to Figure 1-2. • External Speaker Jack • J104 provides repeater audio output to an external speaker. The local volume control adjusts the volume level of this speaker. • Speaker/Microphone Jacks • This indicates that the CW Identification is being transmitted on the lowest-frequency repeater.
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INTRODUCTION AND OPERATION 1.13.5 POWER SUPPLY Check with your Johnson representative for more information concerning the capabilities of LTR-Net systems. The 2000 Series Repeater Power Supply is a quad output 800W supply with power factor correction. A battery back-up module, PN 023-2000-830, can be added to the power supply to provide automatic battery revert in the event of AC power failure (see Section 1.
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INTRODUCTION AND OPERATION LTR-Net REPEATERS (UP TO 20 PER SWITCH) OTHER SWITCHES AND SYSTEMS AUDIO AND PUBLIC SWITCHED 3000 SERIES SWITCH DATA LINK WAM/SNM LTR-Net TELEPHONE NETWORK (PSTN) OR PABX TIM CIM MOBILE TRANSCEIVER AUDIO AND DATA LINK CIM LTR CCM MOBILE TRANSCEIVER AUDIO AND DATA LINK NetNIM CONVENTIONAL MOBILE TRANSCEIVER SYSTEM and SUBSCRIBER MANAGER (SSM) Figure 1-3 LTR-Net SYSTEM COMPONENTS required for the call.
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INTRODUCTION AND OPERATION 1.14.4 SWITCH All LTR-Net mobiles have one of the Locality repeaters assigned as their "Home Repeater". This repeater handles the data and audio unless a failure causes the Status Repeater to take over. The Group ID calls use the Home Repeater number in identifying the mobiles (see Section 1.15.3). The Switch can connect several different forms of communication together to form a communication network that requires the Call Processor.
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INTRODUCTION AND OPERATION 1.15 LTR-Net FEATURES 1.14.11 TELEPHONE INTERCONNECT AND DATA TRANSMISSION 1.15.1 STANDARD AND SPECIAL CALLS Mobile transceivers can be used to access the PSTN (Public Switched Telephone Network). However, this interconnect operation must be on a secondary basis to dispatch operation. An exception is when the trunked system or channel is assigned exclusively to one user. There are two types of calls with LTR-Net signaling; Standard Calls and Special Calls.
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INTRODUCTION AND OPERATION Unique IDs also permit individual mobile units to be called using the special calls described in the preceding section. Calls can also be made to individual transceivers using standard call Group IDs 1-239 if an ID is assigned to only one transceiver. 1.15.3 GROUP IDENTIFICATION CALLS The Group ID (1-239) is assigned to each LTRNet Home Repeater. A "standard" Group ID call is accepted by a mobile if its Home Repeater and Group ID are in the data message.
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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 2000 OCXO DRAWER Size Weight Shipping Weight Operational Temperature Range AC Voltage/Frequency DC Voltage (w/2 oscillators) DC Voltage (optiona external supply) DC Current (w/2 oscillators) 1.75” high, 17” wide, 14” deep (19” rack mount, 1 rack unit height) 8 pounds 9 pounds -30°C to +60°C (-22°F to +140°F) 115V AC ±15% 50/60 Hz 0.2A (115V AC) or 0.1A (230V AC) 15V DC ±15% < 1A DC at initial turn on < 0.7A DC after warm-up Frequency 10 MHz Reference Signal Outputs 8 - 1.
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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-Net 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 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. An AC surge protector is recommended for all equipment.
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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 The Repeater is shipped 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 RECEIVER 3 BANDPASS FILTER MULTICOUPLER TRANSMITTER 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 2.9.2 MPC DATA BUS JUMPER SETTINGS The repeaters are interconnected by a balanced line High-Speed Data Bus (HSDB) consisting of a six conductor cable.
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INSTALLATION 2.10 CONNECTING RECEIVE AND TRANSMIT ANTENNAS Connect the voice link to terminals 1-2 and 3-4 (see Figure 2-8 and 2-12). Receive and Transmit antenna connector locations are shown in Figure 2-7. Although each transmitter and receiver could be connected to a separate antenna, this is usually not done because of the large number of antennas required by a multiple repeater installation. Therefore, an antenna combining system is usually used.
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INSTALLATION 2. A separate RS-232 serial link can be used.
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INPUT 10dB 6dB 3dB J5 J6 J7 J8 J9 J10 OUTPUT 10dB 20dB J3 J4 J1 J2 ATTENUATOR INPUT J9 J10 J7 J8 J5 J6 J3 J4 J1 J2 OUTPUT 3dB 6dB 10dB 10dB 20dB ATTENUATOR INPUT J9 J10 J7 J8 J5 J6 J3 J4 J1 J2 OUTPUT 3dB 6dB 10dB 10dB 20dB ATTENUATOR INSTALLATION A010 IN SPLITTER SHELF 36 dB ATTENUATION 23 dB ATTENUATION 19 dB ATTENUATION Figure 2-13 ATTENUATOR SETTINGS 2-9 March 1999 Part No.
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INSTALLATION TO GPS 10 MHz SERIES 2000 OCXO DRAWER (023-2000-925) 115V 1.25 MHz OUTPUTS 10 MHz B- B+ TEMP 1.25 MHz MPC SWITCHES/JUMPERS 1 2 3 4ON HSDB CODE SELECTION 1 2 3 4 5 6 7 8 ON 2 4 6 1 3 5 J4 S3 S2 CRYSTAL SELECTION J5 1 2 3 Figure 2-14 SINGLE REPEATER INSTALLATION 10 MHz SPLITTER +12V TO GPS 10 MHz SERIES 2000 OCXO DRAWER (023-2000-925) 115 V 1.25 MHz OUTPUTS 10 MHz B- B+ TEMP 1.
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INSTALLATION 10 MHz SPLITTER +12V TO GPS 10 MHz SERIES 2000 OCXO DRAWER (023-2000-925) 115 V 1.25 MHz OUTPUTS 10 MHz B- B+ TEMP 1.25 MHz MPC SWITCHES/JUMPERS END REPEATER 2 1 4 3 2 1 ON 4 3 6 5 7 8 HSDB CODE SELECTION CRYSTAL SELECTION ON 2 4 6 1 3 5 J4 S3 S2 J5 1 2 3 10 MHz B- B+ TEMP 1.
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INSTALLATION 1 PPS CONNECTION FROM GPS 10 MHz SPLITTER 10 MHz SPLITTER +12V +12V TO GPS 10 MHz SERIES 2000 OCXO DRAWER (023-2000-925) 1.25 MHz 8-WAY SPLITTER SHELF (023-2000-924) INPUT 1.25 MHzOUTPUTS 0 dBm 115V 1.25 MHz OUTPUTS SPLIT IN HSDB ALL MIDDLE REPEATERS 10 MHz 1 2 3 4 ON 1 2 3 4 5 6 7 8 ON B- B+ TEMP B- B+ TEMP S3 1.25 MHz S2 HSDB CODE SELECTION CRYSTAL SELECTION J4 2 4 6 1 3 5 J5 1 2 3 -10 dBm 0 dBm 10 MHz B- B+ TEMP B- B+ TEMP 1.
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SECTION 3 SOFTWARE Figure 3-1 PROGRAMMING SETUP 3.1 INTRODUCTION 3.1.2 MINIMUM COMPUTER REQUIREMENTS 3.1.1 PROGRAMMING SETUP The LTR-Net Programmer requires Windows NT 4.0 or later, or Windows 95 or later that meets the following minimum requirements. The following items are required to program the repeater. The part numbers of this equipment are shown in Section 1, Table 1-1. A programming setup is shown above. • • • The LTR-Net Programmer on 3.5 inch disk, Part No. 023-9998-459, uses Windows NT 4.
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SOFTWARE 3.1.3 PROGRAMMING CABLES The LTR-Net Programmer is used to configure repeaters for proper operation with the LTR-Net protocol. The cables from the repeater to the computer are not included. From the repeater standpoint, an LTR-Net system consists of one or more repeaters installed in a Locality, a 3000 Series Switch and the necessary interconnects and programming to provide LTR-Net operation (see Section 1).
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SOFTWARE 3.2 MISCELLANEOUS SOFTWARE INFORMATION Once files have been opened or saved from within the programmer, those filenames will show up in the taskbar Documents selection. allowing the program to be started by selecting the desired Locality file from the Start menu. 3.2.1 MINIMUM FREE MEMORY REQUIRED Approximately 2MB of free memory is required to run this program. If not enough is available, there may be other programs that are also being loaded into conventional memory.
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SOFTWARE FILE New* Ctrl+N Open* Ctrl+O Save As Save* Ctrl+S [Files List] Exit Locality Information* Define Repeaters Adjacent Locality Data Select Repeater* Edit Parameters Repeater Information* General Parameters Input Alarms Output Alarms Alarm Cross Reference EDIT Delete Repeater TRANSFER Read Setup Parameters* Write Setup Parameters* HARDWARE HSDB Monitor* Rx/Tx Data RF Data Input Monitor Revisions* Mode Select TEST Exciter PA Receiver Full Repeater Adjust RNT Link UTILITIES COM Port Set
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SECTION 4 LTR-Net PROGRAMMER 4.1 MENU DISPLAYS 4.2.2 OPEN The menus available are listed at the top of the screen (see Figure 4-1). Move the cursor with the mouse to highlight the menu name. Press the left mouse key to view the menu and the mouse to scroll through the menu. Call up the highlighted selection by pressing the left mouse button. The Toolbar provides one-click access to some of the most frequently used menu selections.
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LTR-Net PROGRAMMER Locality Information Define Repeaters Adjacent Locality Data Select Repeater Edit Parameters Repeater Information General Parameters Input Alarms Output Alarms Alarm Cross Reference EDIT Delete Repeater Figure 4-4 EDIT PROGRAMMING FLOWCHART 4.3 EDIT 4.3.1 LOCALITY INFORMATION This menu is used to create new files and set or change the repeater operating parameters. The filename for the Locality and relevant data is shown in the Title Bar and Status Bar (see Section 4.8.1).
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LTR-Net PROGRAMMER 4.3.2 SELECT REPEATER This menu selection has an equivalent icon in the toolbar. This menu selection or icon selects a repeater from the currently defined repeaters within this Locality (see Figure 4-8). Move the cursor with the mouse to highlight the repeater filename and double-click the mouse to open the Edit Parameters window. Figure 4-7 ADJACENT LOCALITY DATA • Select the Locality ID number for the Locality currently being defined.
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LTR-Net PROGRAMMER 4.3.3 REPEATER INFORMATION This menu selection has an equivalent icon in the toolbar. This menu selection or icon brings up the parameter pages for the selected repeater. It allows entry of information specific to this repeater.
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LTR-Net PROGRAMMER Figure 4-11 OUTPUT ALARMS Figure 4-10 INPUT ALARMS Input Alarms Output Alarms There are four Input Alarms that can be activated by external devices (see Section 6.13). These inputs can be Disabled, Energized or De-Energized. Alarms 3 and 4 can also be Analog Inputs. Select the operation of the Output Alarm. The available types are: • Disabled - The input alarm line is inactive. • Energized - An open circuit external to the repeater activates the alarm.
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LTR-Net PROGRAMMER Cross Reference Show Alarm Map The cross reference screen selects the Output Alarm that is activated by each Input Alarm. There are up to: This window displays an Alarm Map that displays those Alarm Outputs that have been mapped in bold type. Double-clicking on these outputs lists the Alarm Inputs that have been assigned to that output. • • • • 48 alarms (0-47) 4 (hardware) External Input Alarms 18 (software) Internal Alarms (see Table 1-2). 26 unused There are 4 Output Alarms.
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LTR-Net PROGRAMMER 4.3.4 DELETE REPEATER 4.4 TRANSFER Select the Repeater number to delete from this Locality and press the Delete button. Figure 4-15 TRANSFER MENU 4.4.1 READ SETUP PARAMETERS This menu selection has an equivalent icon in the toolbar. This menu selection or icon reads the contents of the EEPROM memory of a repeater and loads it into a buffer. The contents of the buffer may then be displayed to show the programming of the repeater.
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LTR-Net PROGRAMMER 4.5 HARDWARE The Home column refers to the Home repeater number of the originator, therefore, the Repeater and Home numbers may not be the same number. The GID column refers to the Group ID of the talk group of the originator. The UID is the Unique ID used to identify the originator of Special Calls. Special Call information is listed in the Token and Subtype columns. 4.5.
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LTR-Net PROGRAMMER 4.5.4 INPUT MONITOR 4.5.3 RF DATA This window monitors the two Analog Input lines. It is only used with the 4-Alarm Type IAC, and only if Input 3, Input 4 or both are programmed for "Analog". In addition to the actual or measured value, the Low/High limit data are also displayed. These limits are programmed in the "Edit -> Repeater Information -> Input Alarms" screen (see Figure 4-13). If one of these inputs is not programmed "Analog", the data for that input is blanked.
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LTR-Net PROGRAMMER 4.5.6 MODE SELECT The Mode Select window places the repeater either in the Normal mode, Test mode or Diagnostic mode. In the Normal mode, the repeater operates as a normal repeater. In the Test mode or Diagnostic Mode the repeater transmits a test word. This test word is the Test Mode ID setup in the Repeater Information (see Section 4.3.3).
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LTR-Net PROGRAMMER 4.6.1 EXCITER 4.7.1 COM PORT SETUP This menu selection walks through the Exciter alignment windows. Refer to Section 7.3 for the Exciter alignment and Figure 7-2 for an alignment points diagram and Figure 7-10 for a test setup of the Exciter. This menu selection has an equivalent icon in the toolbar. This menu selection or icon allows changes to the COM port or baud rate used to send and receive data from the attached Repeater MPC.
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LTR-Net PROGRAMMER 4.8 VIEW 4.8.3 SAVE SETTINGS ON EXIT 4.8.1 STATUS BAR When the menu item View -> Save Settings on Exit is selected, the toolbar location (size and shape) as well as the main window location and size are saved and re-used when the programmer is opened. The Status Bar is located at the bottom of the screen that displays information about the repeater. 4.9 HELP 4.9.1 HELP TOPICS 4.8.
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SECTION 4 LTR-Net PROGRAMMER 4.1 MENU DISPLAYS 4.2.2 OPEN The menus available are listed at the top of the screen (see Figure 4-1). Move the cursor with the mouse to highlight the menu name. Press the left mouse key to view the menu and the mouse to scroll through the menu. Call up the highlighted selection by pressing the left mouse button. The Toolbar provides one-click access to some of the most frequently used menu selections.
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LTR-Net PROGRAMMER Locality Information Define Repeaters Adjacent Locality Data Select Repeater Edit Parameters Repeater Information General Parameters Input Alarms Output Alarms Alarm Cross Reference EDIT Delete Repeater Figure 4-4 EDIT PROGRAMMING FLOWCHART 4.3 EDIT 4.3.1 LOCALITY INFORMATION This menu is used to create new files and set or change the repeater operating parameters. The filename for the Locality and relevant data is shown in the Title Bar and Status Bar (see Section 4.8.1).
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LTR-Net PROGRAMMER 4.3.2 SELECT REPEATER This menu selection has an equivalent icon in the toolbar. This menu selection or icon selects a repeater from the currently defined repeaters within this Locality (see Figure 4-8). Move the cursor with the mouse to highlight the repeater filename and double-click the mouse to open the Edit Parameters window. Figure 4-7 ADJACENT LOCALITY DATA • Select the Locality ID number for the Locality currently being defined.
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LTR-Net PROGRAMMER 4.3.3 REPEATER INFORMATION This menu selection has an equivalent icon in the toolbar. This menu selection or icon brings up the parameter pages for the selected repeater. It allows entry of information specific to this repeater.
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LTR-Net PROGRAMMER Figure 4-11 OUTPUT ALARMS Figure 4-10 INPUT ALARMS Input Alarms Output Alarms There are four Input Alarms that can be activated by external devices (see Section 6.13). These inputs can be Disabled, Energized or De-Energized. Alarms 3 and 4 can also be Analog Inputs. Select the operation of the Output Alarm. The available types are: • Disabled - The input alarm line is inactive. • Energized - An open circuit external to the repeater activates the alarm.
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LTR-Net PROGRAMMER Cross Reference Show Alarm Map The cross reference screen selects the Output Alarm that is activated by each Input Alarm. There are up to: This window displays an Alarm Map that displays those Alarm Outputs that have been mapped in bold type. Double-clicking on these outputs lists the Alarm Inputs that have been assigned to that output. • • • • 48 alarms (0-47) 4 (hardware) External Input Alarms 18 (software) Internal Alarms (see Table 1-2). 26 unused There are 4 Output Alarms.
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LTR-Net PROGRAMMER 4.3.4 DELETE REPEATER 4.4 TRANSFER Select the Repeater number to delete from this Locality and press the Delete button. Figure 4-15 TRANSFER MENU 4.4.1 READ SETUP PARAMETERS This menu selection has an equivalent icon in the toolbar. This menu selection or icon reads the contents of the EEPROM memory of a repeater and loads it into a buffer. The contents of the buffer may then be displayed to show the programming of the repeater.
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LTR-Net PROGRAMMER 4.5 HARDWARE The Home column refers to the Home repeater number of the originator, therefore, the Repeater and Home numbers may not be the same number. The GID column refers to the Group ID of the talk group of the originator. The UID is the Unique ID used to identify the originator of Special Calls. Special Call information is listed in the Token and Subtype columns. 4.5.
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LTR-Net PROGRAMMER 4.5.4 INPUT MONITOR 4.5.3 RF DATA This window monitors the two Analog Input lines. It is only used with the 4-Alarm Type IAC, and only if Input 3, Input 4 or both are programmed for "Analog". In addition to the actual or measured value, the Low/High limit data are also displayed. These limits are programmed in the "Edit -> Repeater Information -> Input Alarms" screen (see Figure 4-13). If one of these inputs is not programmed "Analog", the data for that input is blanked.
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LTR-Net PROGRAMMER 4.5.6 MODE SELECT The Mode Select window places the repeater either in the Normal mode, Test mode or Diagnostic mode. In the Normal mode, the repeater operates as a normal repeater. In the Test mode or Diagnostic Mode the repeater transmits a test word. This test word is the Test Mode ID setup in the Repeater Information (see Section 4.3.3).
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LTR-Net PROGRAMMER 4.6.1 EXCITER 4.7.1 COM PORT SETUP This menu selection walks through the Exciter alignment windows. Refer to Section 7.3 for the Exciter alignment and Figure 7-2 for an alignment points diagram and Figure 7-10 for a test setup of the Exciter. This menu selection has an equivalent icon in the toolbar. This menu selection or icon allows changes to the COM port or baud rate used to send and receive data from the attached Repeater MPC.
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LTR-Net PROGRAMMER 4.8 VIEW 4.8.3 SAVE SETTINGS ON EXIT 4.8.1 STATUS BAR When the menu item View -> Save Settings on Exit is selected, the toolbar location (size and shape) as well as the main window location and size are saved and re-used when the programmer is opened. The Status Bar is located at the bottom of the screen that displays information about the repeater. 4.9 HELP 4.9.1 HELP TOPICS 4.8.
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SECTION 5 REPEATER PROGRAMMING 5.1 OVERVIEW Another method of starting the program is by double-clicking on the shortcut icon. This starts the program with an empty information file (Locality File). A Locality File contains all of the programming information for all repeaters installed at a Locality. The information in this section will assist the user in operating the programmer. 5.1.
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REPEATER PROGRAMMING 5.2.1 GENERAL PARAMETERS 5.3.2 OPEN AN EXISTING SITE FILE These repeater parameters select the frequency band for the repeater and the channel number. There are 920 channel numbers with transmit/receive frequencies assigned (see Appendix A). The area bit is used to identify a specific system if more than one is operating in a geographical area. Defined repeaters are designated active or inactive in the Locality from this window.
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SECTION 6 CIRCUIT DESCRIPTION 6.1 RECEIVER A 1.8 dB attenuator follows amplifier Q201. Additional 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 Q201 L201/L202/L203 52.95 MHz 4-POLE 52.95 MHz 52.95 MHz 4-POLE MIXER IF AMP CRYSTAL FILTER U201 CRYSTAL FILTER BANDPASS FILTER RF AMP Z201/Z202 L204/L205/L206 Q202 Z203/Z204 843-848 MHz OCXO IN HIGH STABILITY SYNTHESIZER REF IN HS CS RX EN HS LK RX LD U205 F IN CLK DATA Q203 Q204 TX OCXO 52.95 MHz 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) INTERNAL
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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 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 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 With reference to the ground on the Exciter, the 3.5V reference stability is maintained by U126B/C/D on the MAC. The 3.5V DC passes through summing 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.
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CIRCUIT DESCRIPTION The fR input is produced by dividing the 1.25 MHz OCXO frequency by 125 to produce a reference frequency (fR) of 10 kHz. This signal is integrated to provide a DC tuning voltage for the TCXO. The DC tuning voltage provides the TCXO with the ±0.1 PPM stability of the OCXO (see Section 6.3). 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.
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CIRCUIT DESCRIPTION HIGH STABILITY SYNTHESIZER BUFFER REF IN HS CS EX Q401/Q402 U401 HS LK EX F IN TX OCXO FROM Q204 PD OUT SWITCH LPTT Q405 AMP EX MOD DATA U402B U402A AMP BUFFER U404A U404B MAIN SYNTHESIZER PD OUT CLK TCXO BUFFER U403 F IN SYN CS EX 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 RF 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 SWITCH (OSC 1) (OSC 2) DIVIDER U905 U901A/B/C/D, U902B, U904D U906A 10 MHz REF OUT 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 13 14 15 16 17 18 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. The 10 MHz signal is then applied to the counter chip U905.
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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) U902B U904D 4 6 11 12 10 10 MHz SIGNAL OUTPUT (U905, U906) 10 U901D 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 to U913. The output of this phase comparator at U911, pin 13 is essentially low if the input from the VCO is higher in frequency than the input from U911, pin 12. Conversely, this output is essentially high if the input from the VCO is lower in frequency than the input from U911, pin 12. Clocking pulses are continually present on the PCP output of U913, pin 1. Power control is connected to WO505 from the RF Interface board (RFIB).
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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 SPLITTER AMP THERMAL SENSOR U502A U503 Q703 Q704 U651A/B U652A/B FORWARD VSWR 1/2 WAVE DELAY COMBINER POWER SENSE Figure 6-9 160W PA BLOCK DIAGRAM 6.5.3 FINAL AMPLIFIERS resistor.
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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 Q101 FORWARD POWER U102A Q8 Q7 STR U103 Q6 SER Q5 Q4 CLK Q3 Q2 Q1 OE RF POWER CONTROL +26V P102 POWER ADJUST Q102-Q105 U102B +15V P105 Q111B PA PWR CNTRL MUX 3 RF DET (PRE-DRIVER) Y0 RF MUX3 INH U104 19 WO103 P103 P104 COMPARATOR Q108 P101 U109A FORWARD POWER U112B Y1 E A0 Y2 A1 Y4 A2 Y5 Z Y6 FINAL 2 POWER Y3 VREF EX 14 LPTT 20 RF MUX1 INH 13 A D LEVEL 27 E Z RF DATA C 9 A2 RF DATA B 26 A1 Y0 A0 Y2 Y7 Y1 FINAL 1 P
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CIRCUIT DESCRIPTION 6.7 800W POWER SUPPLY C111. The resistor network connected to CR104 charges up C106/C107 to +18Voff 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 OVERVOLTAGE SHUTDOWN U110D Q120, Q121 FAN SYNC L101 BUFFER/ HYSTERESIS FAN CONTROLLER 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-UP
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CIRCUIT DESCRIPTION shift and buffer this pulse. When the narrow pulse is presented to the timing capacitor of the +15V and +5V 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.
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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 6.11.2 MAIN CONTROLLER MICROPROCESSOR 6.11 MAIN PROCESSOR CARD 6.11.1 INTRODUCTION This contains the main software and control over the repeater (see Figure 6-15).
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CIRCUIT DESCRIPTION P2-0 P2-1 P2-2 P2-3 P2-4 STAGING STAGING LATCH 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 25-26 UNUSED 6.11.7 J2 MEMORY SELECT Pins 27/59 -5V IN J2 is jumpered to select either the Flash memory or the EPROM memory. Flash memory is ultra-fast data storage. The normal setting is pin 1 to pin 2. This is the -5V input to the MPC from the power supply via the Controller backplane. Pins 28-29 Pins 60-61 Pin 1 Pin 2 Pin 3 +5V IN 6.11.8 J3 BAUD RATE This is the +5V input to the MPC from the power supply via the Controller backplane.
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CIRCUIT DESCRIPTION 6.12 MAIN AUDIO CARD 6.12.2 AUDIO/DATA MICROPROCESSOR 6.12.1 INTRODUCTION This Audio/Data microprocessor is on the MAC card and is used to decode LTR data received from the mobiles. The LTR data is applied to U111, pin 8 (P1.7 input). When a word is successfully decoded the data is then sent to U161 (Tx FIFO) and transmitted on the data bus in parallel to the main processor on the MPC.
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CIRCUIT DESCRIPTION U123B is positive-going pulses. These pulses are applied to U123C which is a Schmitt trigger. When the input signal rises above the reference, the output goes low and causes the reference voltage to decrease slightly adding hysteresis to the triggering level. This hysteresis prevents intermittent squelching when the receive signal strength is near the threshold level. data, and noise.
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CIRCUIT DESCRIPTION 6.12.6 RECEIVE AUDIO PROCESSING 6.12.8 COMPANDOR OPTION The receive audio signal from the receiver is fed into the MAC on P100, pin 27. When it is a call that does not need to be routed to the Switch (i.e. most mobile-to-mobile calls utilizing only that repeater), Repeat Gate U153C is enabled and the receive audio signal is routed through Transmit Option Gate U158C to the input of the transmit audio buffer U164B to be retransmitted.
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CIRCUIT DESCRIPTION Gate U158C and Level Detect Gate U159A to Audio/ Data Test Point J100. The other gate is the Transmit Audio Gate U116C. This gate is also controlled by A/ D processor U111/latch U107. When audio from the Switch is to be transmitted, Transmit Audio Gate U116C is enabled and passes the signal and Repeat Gate U153C is disabled interrupting the receive audio signal.
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CIRCUIT DESCRIPTION and off to create the Morse Code. From the tone generator the signal is fed to bandpass filter U129A. This 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. stable DC bias voltage for U126C/D is required because these stages are DC coupled to the transmit TCXO (see Section 6.2.
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CIRCUIT DESCRIPTION The level of the transmit FSK signal from U109 to the Switch is set by amplifier U165A. The output of the amplifier is routed to main audio amplifier U166A by FSK To Audio Gate U116A. This gate is controlled by A/D processor U111/latch U108. Buffer amplifier U166B converts the single-ended input to a balanced 600 ohm output. This modem operates half-duplex, therefore two are used to provide full duplex operation which is the simultaneous transmission and reception of data.
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CIRCUIT DESCRIPTION Pin 23 The input and output connectors for the MAC are defined as follows. SWITCH RX DATA 6.12.13 P101 SIGNALING CONNECTOR This is the RS-232 data to the Switch. The CIM receives confirmation of all requests made to the repeater and sends information the repeater receives. The signal interface connector P101 (64 pin) connects the Address and Data buses and control lines to the backplane connector. See Figures 6-24 and 6-25.
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CIRCUIT DESCRIPTION Pins 49-55 UNUSED Pin 27 Pin 58 VOTER DATA IN The Receive Wide Band Audio from the Receiver audio demodulator through the RF Interface Board. The typical amplitude is 387 mV RMS (-6 dBm) and 2V DC with Standard TIA Test Modulation into the receiver. This is used in a Voter system. Data from the voted site is injected at this pin. RX WB AUDIO 6.12.
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CIRCUIT DESCRIPTION 6.12.19 J104 EXTERNAL SPEAKER The electromechanical relay outputs are comprised of eight SPDT (normally open) relays. The relays are all open at power-on. Data to the relay is latched by a write to the base address. J104 provides an external speaker connection at the repeater site for monitoring. 6.12.20 J105 WATCH DOG The IAC activates relays when alarm trigger events occur.
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CIRCUIT DESCRIPTION 6.13.4 ALARM INDICATORS There are three forms of alarm indicators from the repeater. One form is the two red LEDs and display combination on the MPC. Refer to Table 1-2 for the combinations and definitions of the active alarms. 1 2 + T U + U T O 2 O 1 2 IN 1 + IN + Another form is the output relay to the terminal blocks at the rear of the repeater where outputs can be wired to external devices or to alarm inputs.
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CIRCUIT DESCRIPTION 6.13.6 P500 SIGNALING CONNECTOR Pins 7/39 The input and output connectors for the IAC are defined as follows. The signal interface connector P500 (64 pin) connects the Address and Data buses and control lines to the backplane connector. See Figure 6-26. This is an input received from a connection to an external device as a specific condition.
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CIRCUIT DESCRIPTION Pins 21-23 UNUSED Pin 56 Pins 24/25 +15V ACCESSORY The Thermal Sensor monitors the PA temperature and creates an alarm condition if the temperature exceeds the limit. This DC supply is an output to an external device through rear connector J1. Pin 57 Pins 26/58 Pin 57 turns the voltage from the power supply to the Repeater on and off. This pin is connected to the on/off toggle switch S508. -5V IN 6.13.
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CIRCUIT DESCRIPTION Pin 9 Pin 22 AC FAIL IN This is buffered Receive Wide Band Audio from the Receiver audio demodulator through the RF Interface Board. The typical amplitude is 387 mV RMS (6 dBm) and 5V DC with Standard TIA Test Modulation into the receiver. This is an output to the rear connector J1. This input from the AC supply is used by the AC fail output to indicate that the AC has been interrupted. Pin 10 SYN CS RX This is the chip select pin for the main receiver synthesizer chip.
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CIRCUIT DESCRIPTION Pin 31 RF DATA C Data C (U105, pin 9) is the most significant bit (MSB) in the 3 multiplex chips located on the RFIB. This pin is a CMOS input from the Controller requiring a logic high for activation. Pin 32 RF DATA This is a data pin with TTL levels from the Controller which has the dual role of loading the synthesizer chips and adjusting the power control D/A lines for proper output power. Up to four synthesizer chips and a shift-register could be connected to this pin. 6.13.
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CIRCUIT DESCRIPTION March 1999 Part No.
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CIRCUIT DESCRIPTION Figure 6-23 MAIN PROCESSOR CARD BLOCK DIAGRAM 6-53 March 1999 Part No.
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CIRCUIT DESCRIPTION Figure 6-24 MAIN AUDIO CARD LOGIC BLOCK DIAGRAM March 1999 Part No.
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CIRCUIT DESCRIPTION Figure 6-25 MAIN AUDIO CARD AUDIO BLOCK DIAGRAM 6-55 March 1999 Part No.
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CIRCUIT DESCRIPTION Figure 6-26 INTERFACE ALARM CARD BLOCK DIAGRAM March 1999 Part No.
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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 TP2 R284 U208 Y201 U210 4 TP6 4 1 TP4 R261 R264 5 5 8 8 1 TP3 U206 U207 20 19 U208 J201 2 1 TP1 Z213 A006 L220 TP5 L231 L225 L223 L224 L211 L207 L209 L206 L205 L204 L203 L202 L201 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 7.3.4 TCXO FREQUENCY ADJUST 1. Tune TCXO Y401 for 3.5V DC ±0.05V DC at U402, pin 1 (response time is very slow). J401 J402 2 1 U405 7.3.5 VCO TEST R425 J403 U402 1. The Synthesizer is programmed for 199 channels above the transmit frequency. 20 19 2. Use the "Turn on carrier" button to key the Exciter. Y401 U406 3. Measure the voltage on U403, pin 6 (TP1). Voltage should be < 7V DC and the Power Output +17.5 dBm ±0.5 dB. 4.
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ALIGNMENT AND TEST PROCEDURES CR651/CR652 or of the entire forward/reverse power detector assembly). Replacement of components within the power control circuitry of the RF Interface Board are unlikely to affect the calibration of the power control. 11. Use the "Turn on carrier" button to unkey the Exciter. 12.Repeat Steps 1-7. Very little adjustment of R446 should be needed. 7.4 75W POWER AMPLIFIER ALIGNMENT NOTE: Replacement of Q501, Q502, Q503 or U501 does not require the adjustments in Section 7.4.2.
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ALIGNMENT AND TEST PROCEDURES NOTE: If the Transmit current begins to increase rapidly and is not constant with time, then unkey the PA immediately and troubleshoot. 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. Use the "Turn on carrier" button to key the PA. NOTE: This will not harm the PA. 3.
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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 R716 R717 WO510 R730 Q703 Q702 R703 A8 R701 U501 R702 Q701 Q502 Figure 7-4 160W POWER AMPLIFIER ALIGNMENT POINTS J104 R170 R171 U108 J103 R150 U104 J102 R106 WO143 J101 WO144 R76 WO145 WO126 WO121 WO115 WO124 WO123 WO125 WO122 Figure 7-5 RF INTERFACE BOARD ALIGNMENT POINTS March 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 SWITCH (RNT) REPEATER RXA+ RXA+ RXA- RXA- TXS+ TXS+ C I M J11 RECEIVER LINK LINES M A C J100 J103 TXSAC VOLTMETER TXSAC VOLTMETER AC VOLTMETER Figure 7-7 REPEATER TO CIM TEST SETUP 7-9 March 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES CR1 GRN CR2 CR5YEL CR4YEL RED CR3 RED DS1 J1 PROG JACK GND J103 A D LEVEL J100 S1 RESET LOCAL ON/OFF/VOL R236 MIC J102 SPKR J101 EXT SPKR J104 POWER CWID HANG SWITCH MOBILE XMIT TEST POINT J500 J501 GND J502 +15V POWER METER 50 OHM DUMMY LOAD 40 dB THRULINE ATTENUATOR COMMUNICATIONS SERVICE MONITOR RF INPUT Figure 7-8 160W PA TEST SETUP March 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES DC AC VOLTMETER VOLTMETER 1.25 MHz OSCILLOSCOPE TM OCXO1 OCXO2 DELTA F OUTPUT AC DC DC BACKUP INTERRUPT OCXO 1 INTERRUPT OCXO 2 INTERRUPT 16 OHM AUDIO DISTORTION ANALYZER POWER CABLES HP 334A COMMUNICATIONS SERVICE MONITOR 36-PIN RIBBON CABLE FREQUENCY COUNTER 20 dB RFIB J402 J401 J201 Figure 7-9 RECEIVER TEST SETUP 7-11 March 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES DC AC VOLTMETER VOLTMETER 1.25 MHz OSCILLOSCOPE MODULATION ANALYZER POWER METER 50 OHM DUMMY LOAD HP 436A POWER CABLES HP 8901A 10 dB 36-PIN RIBBON CABLE FREQUENCY COUNTER 10 dB RFIB J402 J401 J201 Figure 7-10 EXCITER TEST SETUP March 1999 Part No.
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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 B POWER METER 50 OHM DUMMY LOAD HP 436A B C E B B B B C E B B 40 dB THRULINE ATTENUATOR B B C E B B Figure 7-11 75W POWER AMPLIFIER TEST SETUP 7-13 March 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 frequency. 1. Select the TEST - FULL REPEATER - ALL TEST and press Enter. Transmit Mode 7.6.2 REPEATER SETUP 1. Use the "Turn on carrier" button 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 2. Adjacent Channel Rejection 5. Adjust R305 for 0 dBm (775 mV RMS). 3. Offset Channel Selectivity 6. Use the "Turn on carrier" button to unkey the transmitter. 4. Intermodulation Rejection 7. Press F2 to advance to the next screen. 5. Spurious Rejection 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.) 6. Audio Response 7. Audio Sensitivity 9.
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ALIGNMENT AND TEST PROCEDURES Data Level Adjustment 2. Press the microphone PTT and say "four" loudly into the microphone. 1. Remove VNC cards if present. (Set modulation analyzer LPF switch to 3 kHz.) Final adjustment must be performed on the customer channel. 3. Deviation should measure ±1.4-1.6 kHz. 4. Release the microphone PTT. 2. Use the "Turn on carrier" button to key the transmitter. Transmitter Hum and Noise Ratio (Optional) 3.
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ALIGNMENT AND TEST PROCEDURES 7.6.7 TRANSMITTER COMPRESSOR MEASUREMENT 4. Adjust R239 on the MAC for the type of line. Leased Line/Direct Connect (default) -12 dBm (194 mV RMS) NOTE: This test is valid only with compandor option installed. Microwave/T1 (optional) -28 dBm (31 mV RMS) 1. Set the modulation analyzer LPF to 3 kHz. Voice Audio To Repeater 2. Apply +7 dBm (1.73V RMS) at 1 kHz to P100, pin 32 on the MAC. 1. Set MAC S100 and S101, all Sections OFF (see Figure 7-12). 3.
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ALIGNMENT AND TEST PROCEDURES 2. Inject a 1.2 kHz tone from a balanced 600 ohm source, at the level determined by the type of line used, into TXS+ and TXS- of J2 located on the back of the Repeater (see Figure 7-14). 2. Inject a 1.2 kHz tone from a balanced 600 ohm source, at the level determined by the type of line used, into TXA+ and TXA- of J2 located on the back of the Repeater (see Figure 7-18).
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ALIGNMENT AND TEST PROCEDURES FSK Data Level Adjustment From Repeater Separate Data Path (4-Wire) Optional Setting. 8 7 1. Set MAC S100 Sections 1, 4, 5, 8 OFF; 2, 3, 6, 7 ON; S101 Sections 2, 3, 4 OFF; 1 ON (see Figure 7-15). S RX GN -( 2. Adjust R240 on the MAC to obtain -16 dBm (123 mV RMS) measured at J100/J103. 3. Press F2 to advance to the next screen. 4.
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ALIGNMENT AND TEST PROCEDURES 2. The repeater is now in Normal Operation mode. 2. Verify that the repeater is programmed for "Stand Alone" mode in Setup Parameters-F4 (see Section 4.3.3). 3. Key the radio several times on the programmed System/Group. Access should occur every time. (Proper Tx/Rx antenna connections are assumed.) 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.
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ALIGNMENT AND TEST PROCEDURES RXA+ TXA+ 8 7 RXA- 1 6 5 D) GN XS( ) R SIO ) RX UD ND (A ) + (G S SK S (F SRX + RX TX S X O) R ) DI AU (FSK ( + S S+ TX TX 4 S1 3 01 2 1 TXA2 33 J2 S1 00 4 3 2 1 ON 34 S+ K TX FS ON Figure 7-20 J2 CONNECTOR Figure 7-22 S100/S101 SWITCH SETTING 7.7.3 VOICE AUDIO TO SWITCH 1. On the MAC, set S100 and S101, all Sections OFF (see Figure 7-22). 2. Connect an RF generator to the receiver. VOICE LINK CONNECTIONS VIKING VX REPEATER 3.
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ALIGNMENT AND TEST PROCEDURES 3. On the CIM, connect a balanced AC voltmeter at J12. 7.7.5 BLANK AND BURST - FSK DATA FROM SWITCH 4. On the CIM, adjust R44 for the type of line used. 1. On the MAC, set S100 all Sections OFF set S101, sections 2, 3, 4 OFF set S101, section 1 ON (see Figure 7-23). Leased Line/Direct Connect (default) -12 dBm (194 mV RMS) Microwave/T1 (optional) -28 dBm (31 mV RMS) 2. On the CIM, (in the Switch) generate an alignment tone (set S5 to a value of "8"). 5.
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ALIGNMENT AND TEST PROCEDURES 7.7.6 FSK LINK - FSK DATA LEVEL TO SWITCH 6. Decrease VS1 until: the relay engages the LED goes out voltage is present at the active load. 1. On the MAC, set S100 all Sections OFF set S101, sections 2, 3, 4 OFF set S101, section 1 ON (see Figure 7-23). This voltage will be 28V DC ±0.5V. 7. Set Vs1 to 26.5V DC and turn the enable line to OFF. No voltage will be present at the active load. 2.
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ALIGNMENT AND TEST PROCEDURES LM335 BASIC BOARD MODULE 023-2000-830 TEMP FAN CONTROL 1k OFF ACTIVE LOAD B+ B- ENABLE ON VCHGR POWER SUPPLY Vs2 0-40V @ 3A (+) (-) Figure 7-25 BATTERY CHARGER TEST SETUP 7-25 March 1999 Part No.
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March 1999 Part No.
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ALIGNMENT AND TEST PROCEDURES NOT USED PIN NUMBERS 26 WHT/BLU RXS- 1 BLU/WHT RXS+ 27 WHT/ORN TXS- 2 ORN/WHT TXS+ 28 WHT/GRN EB 3 GRN/WHT EA 29 WHT/BRN MB 4 BRN/WHT MA 30 WHT/SLT RXA- 5 SLT/WHT RXA+ 31 RED/BLU TXA- 6 BLU/RED TXA+ 32 RED/ORN RXS- 7 ORN/RED RXS+ 33 RED/GRN TXS- 8 GRN/RED TXS+ 34 RED/BRN EB 9 BRN/RED EA 35 RED/SLT MB 10 SLT/RED MA 36 BLK/BLU RXA- 11 BLU/BLK RXA+ 37 BLK/ORN TXA- 12 ORN/BLK TXA+ 38 BLK/GRN RXS- 13 GRN/B
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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 7-28 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 7-28 MAC ALIGNMENT POINTS March 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 3
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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. • 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.
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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 nent layout are provided for those customers that desire to do their own repairs (see Sections 9 and 10). AC FAIL GND +5V +15V -5V +28V A 2 10 1 4 7 3 11 5 8 6 12 9 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 March 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 March 1999 Part No.
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SECTION 9 PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER SYMBOL NUMBER 900 MHz LTR-Net 75W REPEATER PART NO. 242-2009-632 900 MHz 75W REPEATER ASSEMBLY 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 REPEATER ASSEMBLY 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 1/2" tubing 517-2002-008 517-2002-009 042-0241-556 042-0241-557 HW013 HW014 HW016 HW017 HW018 HW019 HW020 HW021 HW022 HW023 HW024 HW025 HW026 HW027 HW029 HW030 HW031 HW032 HW033 HW036 6-32 machine panhead philips 6-32 panhead philips ZPS 8-32 panhead philips ZPS 10-32 machine panhead phil 6-19 panhead philips ZPS 6-32 machine flathead philips 6-32 x 0.
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PARTS LIST SYMBOL NUMBER P 013 P 014 P 015 P 016 P 017 P 018 PART NUMBER 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 SYMBOL NUMBER 515-7082-200 515-7082-201 515-7082-200 515-7082-201 515-7082-200 515-7082-201 035-2000-210 EXTERNAL CONNECTOR BOARD PART NO.
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PARTS LIST SYMBOL NUMBER DESCRIPTION PART NUMBER HW105 HW106 HW240 HW247 Polarizing key box cnt Polarizing key box cnt #6 plit lock washer ZPS 6-32 machine pan head philips 515-7109-010 515-7109-010 596-1306-008 575-1606-012 J 101 J 102 J 103 J 104 36-pin right angle radial 20-pin straight low profile 20-pin straight low profile 4-pin right angle header 515-0511-001 515-9031-376 515-9031-376 515-9035-004 L 101 3 µH filter choke PC mount 542-5007-031 SYMBOL NUMBER R 065 R 066 R 073 R 074 R 075
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PARTS LIST SYMBOL NUMBER 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 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 DESCRIPTION 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 20k 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 .
PAGE 188
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.
PAGE 189
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.
PAGE 190
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
PAGE 191
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
PAGE 192
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
PAGE 193
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
PAGE 194
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 195
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
PAGE 196
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
PAGE 197
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 198
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 199
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.
PAGE 202
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 203
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 205
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 206
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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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 6 5A 2A 4E 5H A7 Y7 8E/Z1 8F/Z2 8
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SCHEMATICS AND COMPONENT LAYOUTS Figure 10-1 RF MODULE INTERFACE CONNECTOR Figure 10-2 BACKPLANE CABLE CONNECTIONS March 1999 Part No.
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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 March 1999 Part No.
PAGE 210
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
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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-
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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 March 1999 Part No.
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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 March 1999 Part No.
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SCHEMATICS AND COMPONENT LAYOUTS Figure 10-14 RECEIVE VCO COMPONENT LAYOUT 10-9 March 1999 Part No.
PAGE 216
SCHEMATICS AND COMPONENT LAYOUTS NOTES: +12V 1. RESISTORS ARE IN OHMS AND CAPACITORS IN MICROFARADS UNLESS OTHERWISE SPECIFIED. 2 TRANSMIT VCO ONLY. 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 March 1999 Part No.
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SCHEMATICS AND COMPONENT LAYOUTS *C814 IS PLACED ON TOP OF R807 C814* Figure 10-18 TRANSMIT VCO COMPONENT LAYOUT 10-13 March 1999 Part No.
PAGE 220
SCHEMATICS AND COMPONENT LAYOUTS NOTES: +12V 1. RESISTORS ARE IN OHMS AND CAPACITORS IN MICROFARADS UNLESS OTHERWISE SPECIFIED. 2 TRANSMIT VCO ONLY. 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 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 March 1999 Part No.
PAGE 223
+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.
PAGE 224
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 March 1999 Part No.
PAGE 225
+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 .
PAGE 226
WO650 R685 WO651 WO653 L655 R670 1 8 C661 March 1999 Part No.
PAGE 227
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 4 2 3 AC FUSE F101 3 2 1 U102 7 4 CR104 CR103 C103 + + C102 C109 + + C112 C107 8 + C106 T101 + C104 C101 + CR102 6 CR101 2 C111 3 + C105 R102 R101 2 1 C110 C108 CR105 1 5 WO101 WO102 AC SENSE +5V March 1999 Part No.
PAGE 231
S101 WO101 AC SENSE 115V J101 1 F101 1A 4 6 1 5 2 5 WO103 +15V OUT 3 6 2 4 3 2 7 + 230V AC POWER INPUT 2 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 March 1999 Part No. 001-2009-600 + +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.
PAGE 232
20 21 Y2 CR1 R18 R17 S1 J5 2 1 6 8 7 9 10 9 8 20 1 U3 11 10 5 R9 U8 4 U23 U32 8 1 6 4 J4 2 5 11 16 10 1 1 3 U13 C25 8 9 28 O N 1 8 14 1 1 20 R35 R27 R10 U14 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 14 12 13 7 8 9 8 14 1 U5 U27 84 2 1 7 8 U15 U20 1 8 1 2 R34 1 32 1 J3 U24 1 24 33 11 5 4 32 12 15 28 14 J6 U18 1 4 5 R3 R16 1 8 U17 2 3 U25 14 1
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P1 50 MAIN MICROPROCESSOR +15V 51 CR1 A0 42 R17 2.2k U15F 13 A1 10 CR2 A2 41 A3 A5 CR5 9 R20 2.2k CR3 R2 2.
PAGE 234
U7A 74HC32 1 U8C MSTB J1-16 (1) 5 6 U20D 9 8 10 U6-15 (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 SD 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) DE 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 10
PAGE 235
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
PAGE 236
40 1 14 15 10 28 1 U108 R170 R169 C148 C147 C149 10 U161 U112 U111 1 1 10 5 8 5 U149 4 20 11 R245 U157 WO WO 116 118 WO 117 20 11 C228 1 14 8 R270 R155 C140 R218 C160 7 C184 R321 C145 16 9 C144 R166 U118 C181 1 R161 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 R
PAGE 237
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
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+5V + C295 220 R247 54.9k 3 R281 1M C236 .001 C102 .001 +1.25 V 5 + R294 1k C279 .22 SOURCE C239 68pF U115B RX VOICE GATE 6 C104 100pF U122A 2904 1 2 C237 .033 C277 .0047 R105 100 U122B 2904 7 6 C111 47k C238 .047 C239 .068 R108 110 C108 .1 5 + C109 .1 10 + U122D 2904 14 13 3 R109 1.07M + R284 10k NORMAL RX U157-15 (1) R114 18k 3 C116 .001 U113D RX SQUELCH ACTIVE GATE 14 + U135B MC33178 7 CR107 4.3V NOISE RECTIFIER R117 6.2k R116 1.5k C117 .
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S100-1 (2) TXS+ 3 C154 .1 S100 P100 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) FSK GATE J103 U153C-10 (2) REPEAT GATE 1 U107-13 (1) DATA LEVEL TEST C282 .
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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 U501 G2 19 74HC154 D0 2 D1 D1 D5 12 A17 22 B D6 43 A18 21 C D2 U518 3 D2 74HC574 4 D3 Q2 18 D7 11 A19 20 D D3 5 D4 D4 6 D5 A12 36 A13 D3 4 A15 D5 7 D6 D6 8 D7 4 ADDRESS LATCH A14 35 18 3 A16 34 A12 23 A A17 2 A13 22 B A18 33 A14 21 C A19 A15 1 MREQ 15 D7 G1 O3 U500 74HC154 14 O2 3 19 G2 O5 6 U508D 8 9 Q4 16 CR502 R517 2.
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P7 P5 P3 P18 P16 P14 P12 P1 1 33 1 33 1 33 1 33 1 33 1 33 1 33 1 33 32 64 F3 F2 F1 32 64 32 64 32 64 32 64 32 64 32 64 32 64 P8 P6 P4 P2 P17 P15 P13 P9 1 17 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 16 32 March 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 March 1999 Part No.
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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 W107 T109 L105 L107 + L102 W111 R254 CR129 C188 L104 EP101 W113 CR141 EP105 CR135 RV102 RT101 RT102 C163 + C186 T101 CR132 U114 Q132 + C169 CR126 Q125 U111 + C205 + R113 C106 EP103 + EP104 C101 J102 R114 J101 Q116 CR109 Q118 T105 C110 + CR121 CR128 W116 + W105 T106 C111 + L101 W106 + C144 EP106 + W104 W110 W111 C143 T106 F102 + C107 A803 W112 CR145 C142 Q101 C145 March 1999
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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 R216 1k R224 0 C T 6 +15V Q127 3600 R219 470 R217 1.2k 15 Vcc C176 R225 .001 68 13 VC + C180 6.8 12 GND C181 .01 Q128 3612 C172 .01 R315 820 R218 4.
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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 March 1999 Part No.
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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
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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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SCHEMATICS AND COMPONENT LAYOUTS POWER HARNESS J2 A B +26.5V GROUND TO RFIB C +15V 1 2 J2 3 BACKPLANE 1 4 7 4 2 5 8 5 3 6 9 6 A 2 1 3 B 4 7 5 8 6 9 10 11 AC FAIL IN 2 POWER SWITCH 1 THERMAL SENSOR 4 7 12 5 TO C 8 +15V 3 BACKPLANE GROUND 9 10 11 REPEATER 9 GROUND 6 +5V 8 -5V 12 7 Figure 10-54 POWER CABLE CONNECTOR AND SCHEMATIC 10-47 March 1999 Part No.
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SCHEMATICS AND COMPONENT LAYOUTS +5V EP106 C106 .01 EP101 EXPAND IN (WO101 MAC) C103 1 3 R101 3.9k + 2 RECT IN 1 5 U101 4 EXP OUT SA577D 11 RECT IN 2 COMP CAP1 10 EXPAND OUT (WO102 MAC) C105 .001 + COMP CAP2 8 + + + COMP OUT EP102 R103 2.7k 9 GCELL IN 2 13 C102 4.7 + V REF C110 1 R102 39k C101 4.7 1 GCELL IN 1 EXP CAP C104 4.7 C109 1 + 14 C108 4.7 EP104 COMPRESS OUT (WO103 MAC) 6 COMP IN I REF 12 GND + 7 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 March 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 March 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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900 MHz CHANNEL FREQUENCY CHART This page intentionally left blank. March 1999 Part No.