Sharp RT-3838H/HB High Quality Service Manual

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1. SPECIFICATIONS

2. BEHAVIORS OF PLL QUARZ MOTOR & PERIPHERY CIRCUIT OUTLINE

• MOTOR CONTROL CIRCUIT

• BRAKE CIRCUIT

• MUTING CIRCUIT

3. BEHAVIORS OF CONTROL UNIT & PERIPHERY CIRCUIT CONTROL UNIT (OUTLINE)

• TAPE COUNT PULSE GENERATOR CIRCUIT

• APLD PAUSE SPACE DETECTOR CIRCUIT

• PLUNGER DRIVE CIRCUIT

• CONTROL UNIT POWER SUPPLY CIRCUIT

• MULFUNCTION PROTECTOR CIRCUIT FOR LSI

• RELAY DRIVE CIRCUIT

• DECK POWER CONTROL CIRCUIT

• POWER SHUT – OFF CIRCUIT

• LSI INFORMATION INPUT SWITCH CIRCUIT

4. TOTAL BLOCK DIAGRAM (Figure 6)

5. TROUBLESHOOTING GUIDE

6. MECHANICAL ADJUSTMENT

7. ELECTRICAL ADJUSTMENT

8. ELECTRICAL ADJUSTMENT POINT (Figure 21)

9. SCHEMATIC DIAGRAM (Figure 22, 23)

10. EQUIVALENT CIRCUIT OF INTEGRATED CIRCUIT (Figure 24)

11. WIRING SIDE OF P.W. BOARD (Figure 25, 26, 27)

12. MECHANISM EXPLODED VIEW (Figure 28)

13. CABINET EXPLODED VIEW (Figure 29)

14. MECHANISM EXPLODED VIEW (Figure 30)

15. PARTS LIST