Sansui SR 4050 Service Manual

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TABLE OF CONTENTS

Section Title Page
I. SPECIFICATIONS .......................... 6-1
2. CONTROLS, INDICATORS AND OTHERS ............. 6-2
3. MAINTENANCE ........................... 6-3
3-1. Changing the capstan .................... 6-3
3-2. Replacing the cartridge ................... 6-3
3-3. Oiling ............................ 64
3-4. Changing the LINE voltage ................. 6-4
4. ADJUSTMENT ............................ 6-5
4-1. Adjusting the stylus pressure ................ 6-5
4-2. Adjusting the inside force canoeler ............. 6-5
4-3. Adjusting the lateral balancer ................ 6-5
4-4. Adjusting the Auto Lift mechanism ............. 6-5
5. TROUBLESHOOTING ........................ 6-7
5-1. Turntable not rotating .................... 6-7
5-2. No sound .......................... 6-7
5-3. Distorted or weak sound ................... 6-7
5-4. Hum ............................ 6-8
5-5. Rumble (Unusual) sound .................. 6-8
5-6. Incorrect speed ....................... 6-8
5-7. Improper tracing ....................... 6-8
58. Defective Auto Lift and Auto Stop ............. 6-8
6. EXPLODED VIEW & PARTS LIST ................ 6-11
61. Exploded view (1) and parts list ............... 6-12
6-2. Exploded view (2) and parts list ............... 6-15
6-3. Exploded view (3) and parts list ............... 6-16
6-4. Exploded view (4) and parts list ................ 6-19
65 Packing and accessories list .................. 6-20
6-6. Auto Lift circuit board ................... 6-21
7. OPERATION OF AUTO LIFT AND STOP MECHANISM . . . . 6-23

8. WIRING DIAGRAM ......................... 6-25