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TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1. GENERAL
Caution ................................................................
3
Specifications .....................................................
5
Connectors ..........................................................
7
Self Diagnosis .....................................................
8
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................
9
2-2. Stand Assy Removal .............................................
9
2-3. Under Cover Removal ..........................................
9
2-4. Switch Unit Removal ...........................................
9
2-5. Loudspeaker Removal ..........................................
10
2-6. BA Board Removal ..............................................
10
2-7. G2 Board Removal (32 inches) ............................
10
2-8. G4 Board Removal (37 inches) ............................
10
2-9. HL4A Board Removal ..........................................
11
2-10. HSN Board Removal ..........................................
11
2-11. IP1 Board Removal (40 inches) .........................
11
2-12. IP2 Board Removal (46 inches) .........................
11
3. SERVICE MENUS
3-1.
How to enter the Service Mode ........................
12
3-2.
Changing TVM Data Settings ...........................
12
3-3.
Writing TVM Data ............................................
12
4. DIAGRAMS
4-1.
Block Diagram ...................................................
13
4-2.
Circuit Board Location .......................................
14
4-3.
Schematic Diagrams and Printed Wiring
Boards .................................................................
14
BA Board Schematic Diagram ...........................
15
HL4A Board Schematic Diagram ......................
32
HSN Board Schematic Diagram ........................
32
IP1 Board Schematic Diagram (40 inches) .......
33
IP2 Board Schematic Diagram (46 inches) .......
35
BA Printed Wiring Board ...................................
37
HL4A Printed Wiring Board ..............................
37
HSN Printed Wiring Board ................................
38
IP1 Printed Wiring Board (40 inches) ...............
39
IP2 Printed Wiring Board (46 inches) ...............
41
5. EXPLODED VIEWS
5-1.
Chassis ................................................................
43
5-2.
Bezel Assy & Stand Assy ..................................
45
5-3.
Rear Cover & Power Supply Cords ...................
46
6. PARTS LIST ............................................................... 47
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
ON
THE EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL
FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN
THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN
THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
WARNING !!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING ANY
SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO
LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY
CONNECTED TO THE POWER LINE.
SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO
LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS DIRECTLY
CONNECTED TO THE POWER LINE.
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