Service manual

TABLE OF CONTENTS (CONT’D)
v
February 2001
Part No. 001-9800-001
TABLE OF CONTENTS
VCO Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Synthesizer IC (U804) . . . . . . . . . . . . . . . . . . . . 6-4
Determining Synthesizer Counter Divide
Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6.4 RECEIVER SERVICING. . . . . . . . . . . . . . . . . .6-5
6.5 TRANSMITTER SERVICING . . . . . . . . . . . . .6-5
6.6 AUDIO/LOGIC BOARD SERVICING. . . . . . .6-5
Digital Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Analog Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
7 ALIGNMENT PROCEDURE AND
PERFORMANCE TESTS
7.1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.2 USING TUNE SOFTWARE . . . . . . . . . . . . . . .7-2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Program Operation . . . . . . . . . . . . . . . . . . . . . . . 7-2
Tune Radio Screen . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.3 ADJUSTMENT PROCEDURE . . . . . . . . . . . .7-4
Preliminary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Frequency and Bias Adjustment. . . . . . . . . . . . . 7-4
Modulation Peak Frequency (UHF Models
Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Modulation Balance . . . . . . . . . . . . . . . . . . . . . . 7-5
Transmit Audio Limiting . . . . . . . . . . . . . . . . . . 7-5
Transmit Data Level. . . . . . . . . . . . . . . . . . . . . . 7-5
Receiver IF Adjustment . . . . . . . . . . . . . . . . . . . 7-5
Squelch Level Adjust . . . . . . . . . . . . . . . . . . . . . 7-6
7.4 RECEIVER PERFORMANCE TESTS . . . . . .7-7
7.5 TRANSMITTER PERFORMANCE TESTS. .7-7
Checking Power Output . . . . . . . . . . . . . . . . . . . 7-7
Checking Frequency. . . . . . . . . . . . . . . . . . . . . . 7-7
Checking Deviation . . . . . . . . . . . . . . . . . . . . . . 7-7
8 PARTS LIST
Front Panel Assembly And Mechanical Parts . . 8-1
UHF RF And PA Boards . . . . . . . . . . . . . . . . . . 8-3
800/900 MHz RF And PA Boards . . . . . . . . . . 8-18
Audio/Logic Board (All Models). . . . . . . . . . . 8-26
9800-Series Radio Mounting Kit . . . . . . . . . . . 8-31
9800-Series Remote Mounting Kit. . . . . . . . . . 8-31
DC Power Cable And Hardware Kit . . . . . . . . 8-31
Accessory Wire Kit . . . . . . . . . . . . . . . . . . . . . 8-31
Amplified Dynamic Microphone . . . . . . . . . . . 8-31
15 Watt, 4.7-Ohm Speaker (Black) . . . . . . . . . 8-32
Exploded Views
High Tier Front Panel . . . . . . . . . . . . . . . . . . 8-33
Low Tier Front Panel . . . . . . . . . . . . . . . . . . 8-34
Front And Top Mechanical Parts . . . . . . . . . 8-32
Bottom Mechanical Parts . . . . . . . . . . . . . . . 8-32
Remote Control Unit Mechanical Parts . . . . 8-33
Remote Transceiver Mechanical Parts . . . . . 8-33
9 SCHEMATIC DIAGRAMS AND
COMPONENT LAYOUTS
Transistor and Diode Basing Diagrams. . . . . . . . 9-1
Amplified Dynamic Microphone . . . . . . . . . . . . 9-2
Transceiver Top Photo . . . . . . . . . . . . . . . . . . . . 9-3
Transceiver Bottom Photo. . . . . . . . . . . . . . . . . . 9-3
High Tier Interconnect Schematic. . . . . . . . . . 9-4
High Tier Interface Board Layout. . . . . . . . . . 9-4
High Tier Display Board
Top View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Bottom View. . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
RPI (P.N. 023-9800-000)
RPI (P.N. 023-9800-000) Board Layout. . . . . 9-6
Programming Cable . . . . . . . . . . . . . . . . . . . . 9-6
RPI (P.N. 023-9800-000) Schematic . . . . . . . 9-6
Component Locator Guides
RF Board (UHF) . . . . . . . . . . . . . . . . . . . . . . . 9-7
RF Board (800/900 MHz). . . . . . . . . . . . . . . 9-10
Audio/Logic Board . . . . . . . . . . . . . . . . . . . . 9-12
430-470 MHz RF
RF Board Schematic (Revised). . . . . . . . . . . 9-15
PA Board Schematic (25W) . . . . . . . . . . . . . 9-15
RF Board Layout. . . . . . . . . . . . . . . . . . . . . . 9-16
VCO Board Layout. . . . . . . . . . . . . . . . . . . . 9-17
PA Board Layout (25W). . . . . . . . . . . . . . . . 9-17
PA Board Schematic (40W) . . . . . . . . . . . . . 9-18
PA Board Layout (40W). . . . . . . . . . . . . . . . 9-19
RF Board Schematic (Unrevised) . . . . . . . . . 9-20
RF Board Layout (Unrevised). . . . . . . . . . . . 9-21
470-512 MHz RF
RF Board Schematic . . . . . . . . . . . . . . . . . . . 9-22
PA Board Schematic (25W) . . . . . . . . . . . . . 9-22
RF Board Layout . . . . . . . . . . . . . . . . . . . . . 9-23
VCO Board Layout. . . . . . . . . . . . . . . . . . . . 9-24
PA Board Layout (25W). . . . . . . . . . . . . . . . 9-24
PA Board Schematic (40W) . . . . . . . . . . . . . 9-25
PA Board Layout (40W). . . . . . . . . . . . . . . . 9-26
800/900 MHz RF
RF Board Schematic . . . . . . . . . . . . . . . . . . . 9-27
PA Board Schematic (15W) . . . . . . . . . . . . . 9-27