Sherwood P 757 P 747 Service Manual

Page 2

I CONTENTS I

I AV-757/AX-747 I

Safety Precautions ....................................... 3
System Connection ....................................... 4
Specifications ............................................. 7
Block Diagrams LI] ....................................... 9
DisaSSembiy Procedures .............................. 11
Circuit Description ....................................... 12
Mechanical Parts List ------------------------------------ 16
Exploded View ......... 17
Printed Circuit Boards ......... 18
Electrical Parts List .................................. 19
IC Functional Block Diagram --------- 21
Schematic Diagrams I, II ---------------- ---22
Wiring Diagram ............................

I CDC-757lVCDC-757 I

Specifications ............................................. 53
Block Diagrams I, n ............................... 54
Laser Beam Satety Precations ---------------- 56
Before Repairing the Compact Disc Player ------ 57
Pickup Replacement .................................... 58
Disassembly Procedures -----

Circuit Description --------------

Trobleshooting -----------------

Mechanical Parts List ........ ..
Exploded Views 1, II -------------- ...71
Printed Circuit Boards ----- -~73
Electrical Parts List .............. "74
IC Functional Block Diagram ---------- ...75
Schematic Diagrams I, II ................

Wiring Diagram ...............................

I TX-757/TX-747 l

Specifications ............................................. 25
Block Diagrams I, II .................................... 27
Disassembly Procedures .............................. 29
Circuit Description ....................................... 30
Alignment Procedures ................................. 33
Troubleshooting ..................................... 36
Mechanical Parts List ------------------------------- 38
Exploded View .......................................... 39
Printed Circuit Boards ................................. 40
Electrical Parts List ....................................... 41
IC Functional Block Diagram ------------------------ 44
Schematic Diagrams 1,11,111 --------------------------- 49
Wiring Diagram .......................................... 52
I DD-757 I

Specifications ............................................. 83
Blogk Diagram ........................................ 84
Wiring Diagram ..................................... 85
Disassembly Procedures .............................. 35
Cichit DEScription ....................................... 86
Alignment Procedures ......................... 90
Troubleshooting ..................................... 93
Mechanical Parts List .................................... 95
Exploded View .......................................... 96
Printed Circuit Boards ................................. 97
Electrical Parts List ....................................... 97
IC Functional Block Diagram ------------------------ 99
Schematic Diagram .................................. 100