SLV-CA30TW, SLV-GA35ME, SLV-GA35PL, SLV-GA35PS, SLV-GA35SG, SLV-GA35TH, SLV-GA35TW, SLV-GA55ME, SLV-GA55PL, SLV-GA55PS, SLV-GA55SG, SLV-GA55TH, SLV-GA65MJ, SLV-GF85PL, SLV-GF85PS, SLV-GF85TH, SLV-GF85TW, SLV-SA33TW, SLV-SP100R, SLV-SP70 - Sony VCR Service Manual (repair manual). Page 3

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TABLE  OF  CONTENTS
Section
Title
Page
Section
Title
Page
Feature Difference ................................................................... 2
SERVICE NOTE ...................................................................... 4
1.
GENERAL
Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-2
Additional Operations .................................................... 1-3
Additional Information ................................................... 1-6
2.
DISASSEMBLY
2-1.
Upper Case Removal .................................................... 2-1
2-2.
Front Panel Section Removal ........................................ 2-1
2-3.
Rear Panel Removal ..................................................... 2-1
2-4.
Mechanism Deck Removal ............................................ 2-1
2-5.
MA-366 Board Removal ................................................ 2-2
2-6.
Internal Views ................................................................ 2-3
2-7.
Circuit Boards Location ................................................. 2-4
3.
BLOCK  DIAGRAMS
3-1.
Overall Block Diagram ................................................... 3-1
3-2.
Video Block Diagram ..................................................... 3-3
3-3.
Servo/System Control Block Diagram .......................... 3-5
3-4.
Audio Block Diagram ..................................................... 3-7
3-5.
Mode Control Block Diagram ........................................ 3-9
3-6.
Power Block Diagram .................................................... 3-11
4.
PRINTED  WIRING  BOARDS  AND
SCHEMATIC  DIAGRAMS
4-1.
Frame Schematic Diagram ............................................ 4-3
4-2.
Printed Wiring Boards and Schematic Diagrams ......... 4-5
MA-366 Printed Wiring Board ....................................... 4-5
MA-366 (Video, Audio) Schematic Diagram ................. 4-9
MA-366 (OSD, Servo/System/Mode Control)
Schematic Diagram ....................................................... 4-13
MA-366 (HiFi Audio, I/O, TUNER)
Schematic Diagram ....................................................... 4-15
MA-366 (Power Supply) Schematic Diagram ............... 4-17
FR-167 Printed Wiring Board and
Schematic Diagram ....................................................... 4-19
5.
INTERFACE,  IC  PIN  FUNCTION  DESCRIPTION
5-1.
System Control-Video Block Interface
(MA-366 BOARD IC101) ............................................... 5-1
5-2.
System Control-Servo Peripheral Circuit Interface
(MA-366 BOARD IC101) ............................................... 5-1
5-3.
System Control-Mechanism Block Interface
(MA-366 BOARD IC101) ............................................... 5-2
5-4.
System Control-Audio Block Interface
(MA-366 BOARD IC101) ............................................... 5-3
5-5.
Servo/System Control Microprocessor
Pin Function (MA-366 BOARD IC101) ......................... 5-4
6.
ADJUSTMENTS
6-1.
Mechanical Adjustments ............................................... 6-1
6-2.
Electrical Adjustments ................................................... 6-1
2-1.
Pre-Adjustment Preparations ........................................ 6-1
2-1-1. Instruments to be Used ............................................ 6-1
2-1-2. Connection ............................................................... 6-1
2-1-3. Set-up of Adjustment ............................................... 6-1
2-1-4. Alignment Tapes ....................................................... 6-1
2-1-5. Specified I/O Level and Impedance ......................... 6-1
2-1-6. Adjusting Sequence ................................................. 6-2
2-2.
Power Supply Adjustments ........................................... 6-2
2-2-1. Power Supply Check ................................................ 6-2
2-3.
Servo System Adjustments ........................................... 6-2
2-3-1. RF Switching Position Adjustment ........................... 6-2
2-4.
Audio System Adjustments ........................................... 6-3
2-4-1. Hi-Fi Audio System Adjustment ............................... 6-3
1.
AF Switching Position Adjustment ........................... 6-3
2-4-2. Normal Audio System Adjustment ........................... 6-3
1.
ACE Head Adjustment ............................................. 6-3
2.
E-E Output Level Check ........................................... 6-3
2-5.
Parts Arrangement Diagram for Adjustments ............... 6-4
7.
REPAIR  PARTS  LIST
7-1.
Exploded Views ............................................................. 7-1
7-1-1. Front Panel and Cabinet Assemblies ....................... 7-1
7-1-2. Chassis Assembly .................................................... 7-3
7-1-3. Mechanism Chassis Assembly (1) ........................... 7-4
7-1-4. Mechanism Chassis Assembly (2) ........................... 7-5
7-1-5. Mechanism Chassis Assembly (3) ........................... 7-6
7-2.
Electrical Parts List ....................................................... 7-7

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