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SA-WCT770
3
1.
SERVICING NOTES
.............................................
4
2. DISASSEMBLY
2-1. Disassembly
Flow
........................................................... 6
2-2. Rear Panel Block ............................................................ 6
2-3. Top Panel Block .............................................................. 7
2-4. SUB LED Board ............................................................. 8
2-5. Sub
2-3. Top Panel Block .............................................................. 7
2-4. SUB LED Board ............................................................. 8
2-5. Sub
AMP
Block
.............................................................. 8
2-6. Top Plate Block, Fuse (F900) ......................................... 9
2-7. POWER
2-7. POWER
Board
................................................................ 9
2-8. Power Cord (AC1) .......................................................... 10
2-9. RF Modulator (SWA12-4V RX) (RF1) .......................... 11
2-10. Rear Plate Block ............................................................. 11
2-11. SUB MAIN Board .......................................................... 12
2-12. Bottom Panel Block ........................................................ 13
2-13. Loudspeaker (16 cm) (SP1) ............................................ 14
2-9. RF Modulator (SWA12-4V RX) (RF1) .......................... 11
2-10. Rear Plate Block ............................................................. 11
2-11. SUB MAIN Board .......................................................... 12
2-12. Bottom Panel Block ........................................................ 13
2-13. Loudspeaker (16 cm) (SP1) ............................................ 14
3. TROUBLESHOOTING
.......................................... 15
4. DIAGRAMS
4-1. Block
Diagram
................................................................ 16
4-2. Printed Wiring Board - SUB MAIN Board (Side A) - .... 18
4-3. Printed Wiring Board - SUB MAIN Board (Side B) - .... 19
4-4. Schematic Diagram - SUB MAIN Board (1/2) - ............ 20
4-5. Schematic Diagram - SUB MAIN Board (2/2) - ............ 21
4-6. Printed Wiring Board - POWER Board - ........................ 22
4-7. Schematic Diagram - POWER Board - .......................... 23
4-8. Printed
4-3. Printed Wiring Board - SUB MAIN Board (Side B) - .... 19
4-4. Schematic Diagram - SUB MAIN Board (1/2) - ............ 20
4-5. Schematic Diagram - SUB MAIN Board (2/2) - ............ 21
4-6. Printed Wiring Board - POWER Board - ........................ 22
4-7. Schematic Diagram - POWER Board - .......................... 23
4-8. Printed
Wiring
Boards
- SUB LED/SUB KEY Boards - ..................................... 24
4-9. Schematic Diagram - SUB LED/SUB KEY Boards - .... 24
5.
EXPLODED VIEWS
5-1. Overall
Section
............................................................... 29
5-2. Sub
AMP
Section
............................................................ 30
5-3. Subwoofer Cabinet Section ............................................ 31
6.
ELECTRICAL PARTS LIST
.............................. 32
TABLE OF CONTENTS
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