Read Sony CMT-SD1 / CMT-SD3 / HCD-SD1 Service Manual online
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TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 4
2. GENERAL
.......................................................................... 7
3. DISASSEMBLY
3-1. Loading Panel ....................................................................... 8
3-2. Glass ASSY ........................................................................... 8
3-3. Front Panel ........................................................................... 9
3-4. Main Board and Tuner Unit .................................................. 9
3-5. CD Mechanism Deck .......................................................... 10
3-6. Back Panel ......................................................................... 10
3-7. Disc Table .......................................................................... 11
3-8. Optical Pick-up ................................................................... 11
3-2. Glass ASSY ........................................................................... 8
3-3. Front Panel ........................................................................... 9
3-4. Main Board and Tuner Unit .................................................. 9
3-5. CD Mechanism Deck .......................................................... 10
3-6. Back Panel ......................................................................... 10
3-7. Disc Table .......................................................................... 11
3-8. Optical Pick-up ................................................................... 11
4. SERVICE MODE
............................................................. 12
5. TEST MODE
..................................................................... 13
6. ELECTRICAL ADJUSTMENTS
............................... 14
7. DIAGRAMS
7-1. Circuit Boards Location ...................................................... 16
7-2. Block Diagrams
7-2. Block Diagrams
• BD Section ....................................................................... 17
• Main Section .................................................................... 19
• Main Section .................................................................... 19
7-3. Schematic Diagram – BD Section – ................................... 23
7-4. Printed Wiring Board – BD Section – ................................. 25
7-5. Schematic Diagram – Main (1/2) Section – ........................ 27
7-6. Schematic Diagram – Main (2/2) Section – ........................ 29
7-7. Printed Wiring Board – Main Section – .............................. 31
7-8. Schematic Diagram – Sub Trans Section – ......................... 33
7-9. Printed Wiring Board – Sub Trans Section – ...................... 34
7-10. Schematic Diagram – Panel Section – ............................. 35
7-11. Printed Wiring Board – Panel Section – ........................... 37
7-12. Schematic Diagram – AMP Section – .............................. 39
7-13. Printed Wiring Board – AMP Section – ........................... 41
7-14. Schematic Diagram – Connector Section – ...................... 43
7-15. Printed Wiring Board – Connector Section – ................... 45
7-16. Schematic Diagram – REG Section – .............................. 47
7-17. Printed Wiring Board – REG Section – ............................ 49
7-18. IC Block Diagrams ........................................................... 51
7-19. IC Pin Functions ............................................................... 54
7-4. Printed Wiring Board – BD Section – ................................. 25
7-5. Schematic Diagram – Main (1/2) Section – ........................ 27
7-6. Schematic Diagram – Main (2/2) Section – ........................ 29
7-7. Printed Wiring Board – Main Section – .............................. 31
7-8. Schematic Diagram – Sub Trans Section – ......................... 33
7-9. Printed Wiring Board – Sub Trans Section – ...................... 34
7-10. Schematic Diagram – Panel Section – ............................. 35
7-11. Printed Wiring Board – Panel Section – ........................... 37
7-12. Schematic Diagram – AMP Section – .............................. 39
7-13. Printed Wiring Board – AMP Section – ........................... 41
7-14. Schematic Diagram – Connector Section – ...................... 43
7-15. Printed Wiring Board – Connector Section – ................... 45
7-16. Schematic Diagram – REG Section – .............................. 47
7-17. Printed Wiring Board – REG Section – ............................ 49
7-18. IC Block Diagrams ........................................................... 51
7-19. IC Pin Functions ............................................................... 54
8. EXPLODED VIEWS
8-1. Front Panel Section ............................................................. 56
8-2. Chassis Section ................................................................... 57
8-3. Mechanism Deck Section (CDM13B-5BD19) ................... 58
8-4. Base Unit Section (BU-5BD19) .......................................... 59
8-2. Chassis Section ................................................................... 57
8-3. Mechanism Deck Section (CDM13B-5BD19) ................... 58
8-4. Base Unit Section (BU-5BD19) .......................................... 59
9. ELECTRICAL PARTS LIST
........................................ 60
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output two times.
that the S curve waveform is output two times.
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