Read Sony CMT-EP50LIV / HCD-EP50LIV Service Manual online
2
HCD-EP50LIV
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
TABLE OF CONTENTS
1.
SERVICING NOTES
................................................
4
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
7
3-2. Front Panel Section .........................................................
8
3-3. MAIN Board ...................................................................
8
3-4. CD Cabinet Section .........................................................
9
3-5. CD Mechanism Deck (CS-21SC-1280) .........................
9
3-6. Tape Mechanism Deck (CRL3439) ................................ 10
3-7. Cassette Lid ..................................................................... 10
3-7. Cassette Lid ..................................................................... 10
4.
MECHANICAL ADJUSTMENTS
....................... 11
5.
ELECTRICAL ADJUSTMENTS
......................... 11
6.
DIAGRAMS
6-1. Block Diagram – TUNER Section – ............................. 15
6-2. Block Diagram – TAPE DECK Section – ..................... 16
6-3. Block Diagram – MAIN Section – ................................ 17
6-4. Block Diagram
6-2. Block Diagram – TAPE DECK Section – ..................... 16
6-3. Block Diagram – MAIN Section – ................................ 17
6-4. Block Diagram
– DISPLAY/POWER SUPPLY Section – ...................... 18
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 19
6-6. Schematic Diagram – FM TUNER Section – ............... 19
6-7. Schematic Diagram – MAIN Board (1/3) – .................. 20
6-8. Schematic Diagram – MAIN Board (2/3) – .................. 21
6-9. Schematic Diagram
6-7. Schematic Diagram – MAIN Board (1/3) – .................. 20
6-8. Schematic Diagram – MAIN Board (2/3) – .................. 21
6-9. Schematic Diagram
– MAIN (3/3)/HEADPHONE Boards – ......................... 22
6-10. Printed Wiring Boards
– MAIN/HEADPHONE Boards – .................................. 23
6-11. Printed Wiring Board – DISPLAY Board – .................. 24
6-12. Schematic Diagram – DISPLAY Board – ..................... 25
6-13. Printed Wiring Board – POWER Board – ..................... 26
6-14. Schematic Diagram – POWER Board – ........................ 27
6-15. IC Pin Function Description ........................................... 31
6-12. Schematic Diagram – DISPLAY Board – ..................... 25
6-13. Printed Wiring Board – POWER Board – ..................... 26
6-14. Schematic Diagram – POWER Board – ........................ 27
6-15. IC Pin Function Description ........................................... 31
7.
EXPLODED VIEWS
7-1. Cabinet Section ............................................................... 33
7-2. Front Panel Section-1 ...................................................... 34
7-3. Front Panel Section-2 ...................................................... 35
7-4. CD Cabinet Section ......................................................... 36
7-2. Front Panel Section-1 ...................................................... 34
7-3. Front Panel Section-2 ...................................................... 35
7-4. CD Cabinet Section ......................................................... 36
8.
ELECTRICAL PARTS LIST
............................... 37
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