Sony PMC-MD55 - Md Boombox, Руководство по обслуживанию

Страница: 2 / 220

– 2 –
1. SERVICING NOTES
.............................................. 3
2. GENERAL
Playing a CD .................................................................. 6
Recording a Whole CD .................................................. 6
Playing an MD ............................................................... 7
Listening to the radio ..................................................... 7
Setting the Clock ............................................................ 8
Hooking up the System .................................................. 8
3. DISASSEMBLY
........................................................ 9
4. TEST MODE
............................................................. 15
5. ELECTRICAL ADJUSTMENTS
Tuner Section ................................................................. 20
MD Section .................................................................... 21
CD Section ..................................................................... 28
Display Section .............................................................. 30
6. DIAGRAMS
6-1. Block Diagram – TUNER Section – ............................ 31
6-2
Block Diagram – MD Section – ................................... 34
6-3. Block Diagram – CD Section – .................................... 37
6-4. Block Diagram
– FUNCTION SELECT/PANEL Section – ................... 40
6-5. Block Diagram
– POWER AMP/POWER SUPPLY Section – .............. 43
6-6. Block Diagram – SUPER WOOFER Section – ........... 45
6-7. Printed Wiring Board – TUNER Section – .................. 49
6-8. Schematic Diagram – TUNER Section – ..................... 51
6-9. Schematic Diagram – BD Section – ............................. 53
6-10. Printed Wiring Boards – BD Section – ........................ 57
6-11. Printed Wiring Board – DG Section – .......................... 59
6-12. Schematic Diagram – DG Section – ............................. 61
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
TABLE OF CONTENTS
6-13. Printed Wiring Boards – MAIN Section – ................... 64
6-14. Schematic Diagram – MAIN (CD) Section – .............. 67
6-15. Schematic Diagram
– MAIN (SYSTEM CONTROL) Section – .................. 70
6-16. Schematic Diagram
– MAIN (FUNCTION SELECT) Section – .................. 73
6-17. Printed Wiring Board – AUDIO/JACK Section – ........ 75
6-18. Schematic Diagram – AUDIO/JACK Section – .......... 77
6-19. Schematic Diagram – CD MOTOR Section – ............. 79
6-20. Printed Wiring Board – CD MOTOR Section – .......... 81
6-21. Printed Wiring Board
– CD OPEN/CLOSE Section – ...................................... 82
6-22. Schematic Diagram – CD OPEN/CLOSE Section – ... 83
6-23. Printed Wiring Boards – PANEL Section – ................. 86
6-24. Schematic Diagram – PANEL Section – ...................... 89
6-25. Printed Wiring Boards
– POWER AMP/POWER Section – .............................. 91
6-26. Schematic Diagram
– POWER AMP/POWER Section – .............................. 93
6-27. Printed Wiring Boards
– SUPER WOOFER Section – ...................................... 95
6-28. Schematic Diagram
– SUPER WOOFER Section – ...................................... 97
6-29. IC Pin Function Description .......................................... 108
7. EXPLODED VIEWS
............................................... 118
8. ELECTRICAL PARTS LIST
.............................. 128