User's Manual
Table Of Contents
- Front Cover
- Contents
- 1 - Foreword 11
- 2 - Safety and General Information 21
- 3 - Introduction 31
- 4 - System Applications 41
- 5 - Models and Specifications 51
- 6 - Approved Accessories 61
- 7 - Setup and Connections 71
- 8 - Operation 81
- 9 - Troubleshooting 91
- Introduction 91
- Recommended Test Equipment 91
- Troubleshooting Procedures 91
- Module Replacement Procedures 925
- General Replacement Information 925
- Anti-Static Precaution 925
- Care of Gold-Plated Connector Contacts 926
- Power Down Station Before Removing/Inserting Modules 926
- Validating Repairs 926
- Module Replacement 926
- Wireline 928
- ASTRO Modem Card/V.24 Interface Card 929
- Receiver 929
- Exciter 931
- Power Amplifier 932
- Power Supply 933
- Backplane 934
- Preselector Field Tuning Procedure 935
- 10 - Functional Theory of Operation 101
- 11 - Block Diagram, Schematics, Electrical Parts List, and Circuit Board Detail 111
- List of Tables
- List of Figures
- Parts Lists
- Foreword
- Safety and General Information
- Introduction
- System Applications
- Models and Specifications
- Approved Accessories
- Setup and Connections
- Operation
- Troubleshooting
- Introduction
- Recommended Test Equipment
- Troubleshooting Procedures
- Module Replacement Procedures
- Preselector Field Tuning Procedure
- Functional Theory of Operation
- Schematics
- Back Cover
68P81093C75-O January 31, 2001 11-7
Mechanical Parts List:
PLN1681A Main Chassis
Part Number Description Qty Where Used
0200001355
Nut, 8-32 hex 2 Chassis ground stud
0200835638 Nut, elastic 4-40 4 AC receptacle and DC connector
0200844628 Nut, elastic 6-32 8 Fans
0300139392 Screw, 1/4-20 4 Handle
0300139800 Screw, 6-32 x .5 4 Preselector
0307644M09 Screw 10-32 x .75 8 Chassis to case
0307644M12 Screw 10-32 x .375 20 PA, backplane board, receiver and exciter brackets
0307644M28 Screw 4-40 x .437 6 RSS connector, DC connector, AC receptacle
0310907C83 Screw., M3 x .05 x 8 2 Receiver bracket.
0311995A17 Screw, 6-32 x 1 8 Fans
0385865C01 Screw, 8-32 x .250 4 Power supply
0385865C02 Screw, 8-32 x .312 8 Duplexer and duplexer cover
0400002645 Washer, lock #6 ext. 4 Preselector
0400002646 Washer, lock #8 int 2 Ground stud
0400007652 Washer, lock #10 ext 6 Backplane board
0400119331 Washer, split lock 4 Handle
0400490775 Washer, flat #6 2 Preselector
0407643M01 Washer, flat #10 8 Chassis to case
0485061D01 Spacer 2 Spacer for panel RF connectors
0705723V01 Clip, PA 1
0785688C01 Bracket, receiver 1
0785689C01 Bracket, exciter 1
1505432W01 Cover, PA 1
1585693C01 Cover, duplexer 1
2785687C01 Chassis 1
2800048250 Adapter, right angle UHF 2 On TX and RX port
2885828C01 AC Receptacle w/ fuse holder 1
3082933N02 Line cord 1
3085697C01 Coax cable, Exciter to PA 1
3085698C01 Cable, ribbon RSS 1
3085699C01 Cable, ribbon PA 1
3085700C01 Cable, PA power 1 PA to backplane board
3085701C01 Cable, DC power 1
3085702C01 Coax cable, PA to top panel 1
3085702C02 Coax cable, receiver to top panel 1
3085703C01 Wire, brown 1 Power supply to AC receptacle
3085703C02 Wire, orange 1 Power supply to AC receptacle
3085703C03 Wire, green/yellow 1 Chassis to AC inlet
3085703C04 Wire, black 1 Power supply to backplane board
3085703C05 Wire, white 1 Power supply to backplane board
3085703C06 Wire, green/yellow 1 Chassis to power supply
3085786C01 Coax cable, Duplexer to RX port 1
3085786C02 Coax cable, Duplexer to TX port 1
4085732C01 Assembly, PTT/LED 1
4385800C01 Standoff, hex 2 Preselector
4685799C01 Card guides 2
5507519M04 Handles 2
5882273C01 Adapter, N antenna 1 On duplexer
5985731C01 Fan assembly 2
6500139837 Fuse, 3A 250V 2
7505658W01 Thermal pad, PA 1
7582200H01 Pad, gray 6
7582200H14 Pad, black 8
7585798C01 Feet, rubber 4