D2846
TABLE OF CONTENTS
SectionTitlePage
1. GENERAL...................................................................5
2. DISASSEMBLY
2-1. Cabinet Removal .................................................. 13
2-2. D Board Removal ................................................ 13
2-3. G Board Removal ................................................ 14
2-4. A Board Removal ................................................ 14
2-5. L Board Removal ................................................. 15
2-6. I/O Terminal Board Removal ............................... 15
2-7. Service Position .................................................... 16
2-8. H and J Boards Removal ..................................... 16
2-9. Picture Tube Removal ......................................... 17
3. SAFETY RELATED ADJUSTMENT............18
4. ADJUSTMENTS......................................................19
5. DIAGRAMS
5-1. Block Diagrams .................................................... 21
5-2. Frame Shcematic Diagram.................................... 27
5-3. Circuit Boards Location........................................ 29
5-4. Schematic Diagrams and Printed Wiring Boards..... 29
(1) Schematic Diagram of D Board ........................... 33
(2) Schematic Diagrams of G, GA, H, J,
L and U3 Boards .................................................. 37
(3) Schematic Diagram of A Board ........................... 44
5-5. Semiconductors .................................................... 49
6. EXPLODED VIEWS
6-1. Chassis ................................................................. 51
6-2. Picture Tube ......................................................... 52
6-3. Packing Materials ................................................ 53
7. ELECTRICAL PARTS LIST............................54
Note: Hand degauss must be used on stand-by or power-off condition.
This model has an automatic earth magnetism correction function by using an earth
magnetism sensor and a LCC coil. When using a hand degauss while monitor (LCC
coil) is being operated, it sometimes gets magnetized, and the system may not work
properly as a result.
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ACEC
SONY
