Sansui 9090 8080 Service Manual

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NOTE:

This service manual includes two model numbers, #9090 and #8080
together as indicated Model®and ® in parts lists, schematic diagram
and others.

MODEL ® .................... S 9090

MODEL ® .................... I? 8080
When ordering parts, use the parts name and stock No. after confirming
either Model ® or (E.

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TABLE OF CONTENTS

Section Lle Page
1. SPECIFICATIONS ................................................

2. THREADING 0F DIAL CORD ..............................

2-1. Threading of Dial Cord ..................................

2-2. Attachment of Dial Pointer ..........................

3. ALIGNMENTS AND ADJUSTMENT ....................

3-1. Driver Circuit Board Adjustment ......

3-2. FM Adjustment & Alignment ..........

3-3. AM IF Adjustmet 8x Tracking ..........................

4. OPERATION BLOCK DIAGRAM ........................

4-1. Tuner Section

4-2. Audio Section .....................................

5. TROUBLE SHOOTING CHART ...

5-1. Audio Section ................................................

5-2. Tuner Section ................................................

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6. PARTS LOCATION AND PARTS LIST ................... . 10
6-1. F2546 Power Supply Circuit Board ............................ 10
6-2. F-2547 Protector Circuit Board ................................ 1 1
6-3. F-2543 Tone Control Circuit Board ,. 11
6-4. F-2436 Driver Circuit Board .................................... 12
6-5. F~2545 Filter 8: Muting Circuit Board .......................... 12
6-6. F-2541 Equalizer Circuit Board ..................... . . 13
6-7. F-2431 Power Supply Circuit Board ............................ 13
6-8. F-2544 Tone Control Circuit Board ............................ 14
6-9. F-2542 Accessory Switch Circuit Board ........... .... 14
6-10. F<2549 FM, AM Tuner Circuit Board ........................ 15, 16
6-11. F-2550 Multi-Path Circuit Board ................................ 16
6-12, F-1470 Lamp Circuit Board . ........................ H 16
643, F-2597 Connector Circuit Board ................................ 16
6-14. F2548 Protector Connector Circuit Board ...................... 16
6-15. F-15'l9 FM PaCk ................................... . 17
6-16. Figures ............................................. 17

7. SCHEMATIC DIAGRAM .................................. 18, 19. 20
8. OTHER PARTS ..........
8-1. Other Parts (Top Side) ..

8-2. Other Parts (Front Side) .. ..

9. PACKING LIST ..............
10. ACCESSORY PARTS LIST . ........