WX-C770 - Sony Car Audio Service Manual (repair manual). Page 3

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TABLE OF CONTENTS
1. GENERAL
Location of Controls ............................................................... 4
Getting Started ........................................................................ 5
Setting the Clock .................................................................... 5
CD Player ............................................................................... 5
Cassette Player ....................................................................... 7
Radio ...................................................................................... 8
Other Functions .................................................................... 10
CD/MD unit .......................................................................... 11
TV/Video .............................................................................. 14
Connections .......................................................................... 16
2. DISASSEMBLY
2-1.   Front Panel ....................................................................... 18
2-2.   Control Board ................................................................... 18
2-3.   CD Mechanism Block ...................................................... 19
2-4.   Heat Sink .......................................................................... 19
2-5.   CD Board ......................................................................... 20
2-6.   Tape Mechanism Block .................................................... 20
2-7.   Main Board ...................................................................... 21
2-8.   Chassis (T) Assy ............................................................... 21
2-9.   Lever (Release T) ............................................................. 22
2-10. Servo Board ...................................................................... 22
2-11. Roller Assy ....................................................................... 23
2-12. Chassis (OP) (O/S) Assy .................................................. 23
2-13. Optical Pick-up Block ...................................................... 24
3. ASSEMBLY OF TAPE MECHANISM
Alignment of Rotary Switch ................................................. 25
Gear (LDG-E) ....................................................................... 25
Chassis (S) Assy ................................................................... 26
Lever (Mode) ........................................................................ 26
Lever (Pinch Selection) ........................................................ 27
Head Plate Assy .................................................................... 27
Lever (Pinch) Assy ............................................................... 28
Housing ................................................................................ 28
Arm (Suction) ....................................................................... 29
Lever (LDG-A)/(LDG-B) ..................................................... 29
Gear (LDG-FT) .................................................................... 30
Guide (C) .............................................................................. 30
4. MECHANICAL ADJUSTMENTS
.............................. 31
5. ELECTRICAL ADJUSTMENTS
Tape Section ......................................................................... 31
Tuner Section ........................................................................ 32
CD Section ........................................................................... 35
6. DIAGRAMS
6-1.   IC Pin Descriptions .......................................................... 37
6-2.   Block Diagram –CD Section– .......................................... 41
6-3.   Block Diagram –Tape Section– ....................................... 43
6-4.   Block Diagram –Main Section– ....................................... 45
6-5.   Circuit Boards Location ................................................... 47
6-6.   Printed Wiring Boards –CD Mechanism Section– ........... 48
6-7.   Schematic Diagram –CD Mechanism Section– ............... 51
6-8.   Printed Wiring Boards –CD Section– .............................. 56
6-9.   Schematic Diagram –CD Section–................................... 59
6-10. Printed Wiring Boards –Main Section– ........................... 63
6-11. Schematic Diagram –Main Section– ................................ 67
6-12. Printed Wiring Board –Control Section– ......................... 72
6-13. Schematic Diagram –Control Section– ............................ 77
7. EXPLODED VIEWS
7-1.   Cover Section ................................................................... 87
7-2.   Front Panel Section .......................................................... 88
7-3.   Chassis Section ................................................................ 89
7-4.   CD Mechanism Section (1) .............................................. 90
7-5.   CD Mechanism Section (2) .............................................. 91
7-6.   CD Mechanism Section (3) .............................................. 92
7-7.   Tape Mechanism Section (1) ............................................ 93
7-8.   Tape Mechanism Section (2) ............................................ 94
8. ELECTRICAL PARTS LIST
....................................
95
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