
1
WRR-862A/862B
Table of Contents
1. Operating Instructions
..................................................................... 1-1
2. Service Overview
2-1.
Disassembly ................................................................................................ 2-1
2-2.
Notes on Replacing the Parts ...................................................................... 2-4
2-2.
Unleaded Solder .......................................................................................... 2-4
3. Electrical Alignment
3-1.
Preparation .................................................................................................. 3-1
3-1-1.
Equipment and Tools ................................................................. 3-1
3-1-2.
Notes on Adjustment .................................................................. 3-2
3-2.
Adjustment and Checking ........................................................................... 3-2
3-2-1.
Current Consumption Check ...................................................... 3-3
3-2-2.
Reference Frequency (4 MHz oscillation frequency)
Adjustment ................................................................................. 3-4
3-2-3.
Output Level Adjustment ........................................................... 3-4
3-2-4.
RF Squelch Level and RF Level Indicator Adjustment ............. 3-5
3-2-5.
S/N Checking ............................................................................. 3-8
3-2-6.
Distortion Ratio Check ............................................................. 3-10
3-2-7.
Frequency Characteristic Check .............................................. 3-11
3-2-8.
RF Squelch Level Check .......................................................... 3-12
3-2-9.
RF Level Indicator Check ........................................................ 3-14
3-2-10. AF level Indicator/AF Indicator Check .................................... 3-15
3-2-11. Tone Squelch Check ................................................................ 3-16
3-2-12. TX BATT Transmitter (Battery) Indicator Check ................... 3-17
4. Spare Parts
4-1.
Notes on Repair Parts .................................................................................. 4-1
4-2.
Exploded Views and Parts List ................................................................... 4-2
4-3.
Electrical Parts List ..................................................................................... 4-4
4-4.
Supplied Accessories ................................................................................ 4-30
5. Semiconductor Pin Assignments
............................................. 5-1
6. Block Diagram
....................................................................................... 6-1
Содержание WRR-862A
Страница 1: ...UHF SYNTHESIZED DUAL DIVERSITY TUNER WRR 862A WRR 862B SERVICE MANUAL 1st Edition Revised 2 ...
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Страница 75: ...7 3 WRR 862A 862B 7 3 RX 60 RX 60 RX 60 A SIDE SUFFIX 11 RX 60 B SIDE SUFFIX 11 ...
Страница 77: ...7 5 WRR 862A 862B 7 5 AU 276 B SIDE SUFFIX 11 AU 276 A SIDE SUFFIX 11 AU 276 AU 276 ...
Страница 79: ...8 1 WRR 862A 862B 8 1 Section 8 Schematic Diagrams ...
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Страница 96: ...Printed in Japan Sony Corporation 2006 6 22 2001 WRR 862A AU WRR 862B U CE E 9 976 896 03 ...