Sony SA-WFT7 - Manual (Page 3)

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TABLE OF CONTENTS
1. SERVICING NOTES
1-1. Service Position (SA-WFT7) .............................................. 4
1-2. Note for Replacement of the Speaker Unit (SA-WFT7) ..... 4
1-3. Note for Disassembly of the Top Cover (SS-FRF7ED)
and Side Cover (SS-CNF7ED) ............................................ 5
2. DISASSEMBLY
2-1. Top Cover ............................................................................ 6
2-2. AMP Board, FILTER Board ................................................ 7
2-3. POWER Board .................................................................... 7
2-4. Bottom Cover (B) Assy ....................................................... 8
2-5. INPUT Board ...................................................................... 8
2-6. ACIN Board ......................................................................... 9
3. DIAGRAMS
3-1. Circuit Boards Location .................................................... 10
3-2. Block Diagram .................................................................. 11
3-3. Printed Wiring Boards –Filter Section– ............................ 12
3-4. Schematic Diagram –Filter Section– ................................ 13
3-5. Printed Wiring Board –Amp Section (1/2)– ...................... 14
3-6. Printed Wiring Board –Amp Section (2/2)– ...................... 15
3-7. Schematic Diagram –Amp Section– ................................. 16
3-8. Printed Wiring Boards –Power Section– ........................... 17
3-9. Schematic Diagram –Power Section– ............................... 18
4. EXPLODED VIEWS
4-1. Front/Surround Speaker Section (SS-FRF7ED) ............... 21
4-2. Center Speaker Section (SS-CNF7ED) ............................. 22
4-3. Speaker Stand Section (WS-FT7) ..................................... 23
4-4. Subwoofer Section (1) (SA-WFT7) .................................. 24
4-5. Subwoofer Section (2) (SA-WFT7) .................................. 25
4-6. Bracket, Base Section ........................................................ 26
5. ELECTRICAL PARTS LIST ........................................ 27
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7