SLV-GA35MK2, SLV-GA36, SLV-GA45AV, SLV-GA55MK2, SLV-GA59, SLV-GF85MK2, SLV-GF86, SLV-SA34 - Sony VCR Service Manual (repair manual). Page 3

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 ................................................... 1-5

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
SE-119 Printed Wiring Board ........................................ 4-20
SE-119 Schematic Diagram .......................................... 4-21
FR-167 Printed Wiring Board and
Schematic Diagram ....................................................... 4-23

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 Adjustment ............................................. 6-2

2-2-1. Power Supply Check ................................................ 6-2

2-3.

Servo System Adjustment ............................................. 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