Sansui 8 Deluxe Service Manual

Page 2

EIGHT-DELUXE

This service manual is designed for service engineers to repair,

adjust, maintain and order the replacement parts of the EIGHT-DELUXE
correctly.

When ordering the parts, use the stock number and parts name speci-
fically referring to the Parts Locations & Parts List.

For general usage and maintenance of the unit, please refer to the
Operating Instructions attached with the unit.

TABLE OF CONTENTS

Section Title Page
1. SPECIFICATIONS .............................................. 2
2. BLOCK DIAGRAM AND LEVEL DIAGRAM 3

2-1. Block Diagram ............................ 3

2-2. Level Diagram ............................ 4

3. ALIGNMENTS AND ADJUSTMENTS .......... 5

3-1. Driver Circuit Board Adjustment .............. 5

3-2. FM IF Alignment ........................................ 5. 6

3-3. FM Dial Calibration and RF Alignment ...................... 6
3-4. FM Signal Meter, Mono Distortion, Tune Meter and Muting

Adjustment .............................................. 7

3-5. MPX Alignment .......................................... 7, 8

3-6. AM IF Dial Calibration, RF and Signal Meter Alignment ...... 9

4. THREADING 0F DIAL CORD .................................. 11

5. TROUBLESHOOTING CHART ....................... 12

5-1. Troubleshooting on Power Supply Section N ........ 12

5-2. Troubleshooting on Audio Section ......... .12, 13, 14

5-3. Troubleshooting on RF Section ................. ...14, 15

6. PARTS LOCATIONS AND PARTS LIST ................. 16

6-1. F-1419A FM IF Circuit Board ..................... ...16, 17

6-2. F-1261C FM MPX Circuit Board ..................... ..18, 19

6-3. F-1417D AM Circuit Board .................. .20, 21

6-4. F-1472 Equalizer Circuit Board .. 21, 22

6-5. Special Parts List in FM Frontend ....... . . ....... 22

6-6. F-1476 Accessory Switch Circuit Board ...................... 22

6-7. F-1477 Accessory Switch Circuit Board ...................... 22

6-8. F-1473 Tone Control Circuit Board ............... 23

6-9. F-I474 Driver Circuit Board ............. 24, 25

6-10. F-1475 Protector Circuit Board ........ . . . . . . 25, 26

6-11. F-1201A Power Supply Circuit Board ........................ 26

6-12. Other Parts (Front Side) .................................... 27

6-12-1. Section-1 ............ .. .27. 28

6-12-2. Section-2 ....... H . . H ..... 29

6-13. Other Parts (Top Side) .. . ..... 30

6-14. Other Parts (Bottom Side) .............................. 30, 31

7. PACKING LIST ................................................ 31

8. ACCESSORY PARTS LIST ......... 31

9. MAINTENANCE .............................................. 31

9-1. Voltage Adjustment ........................................ 31

10. SCHEMATIC DIAGRAM 0F TUNER SECTION .................. 32

11. SCHEMATIC DIAGRAM OF AUDIO SECTION .................. 33

12. REPLACEMENT 0F MAIN PARTS ... 34

12-1. Tuner Section ............................................ 34

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