Sony MDS-JE640 specifications Table of Contents, Disassembly, Diagrams, Exploded Views

Table of Error Codes

Error Code	Description
10	Could not load
12	Loading switches combined incorrectly
20	Timed out without reading the top of PTOC
21	Could read top of PTOC, but detected error
22	Timed out without accessing UTOC
23	Timed out without reading UTOC
24	Error in UTOC
30	Could not start playback
31	Error in sector
40	Retry cause generated during normal recording
41	Retried in DRAM overflow
42	Retry occurred during TOC writing
43	Retry aborted during S.F editing
50	Other than access processing, and could not read address.
51	Focus NG occurred and overran.

MODEL IDENTIFICATION

— BACK PANEL —

Part No.

	MODEL	PARTS No.
AEP, UK, CIS models		4-228-638-0s
Canadian model		4-228-638-3s
SP, MY models		4-228-638-4s
• Abbreviation
SP	: Singapore model
MY	: Malaysia model

TABLE OF CONTENTS
1. SERVICING NOTES	5
2. GENERAL	11
3. DISASSEMBLY
3-1. Upper Case (408226)	12
3-2. Front Panel Section	12
3-3. Main Board	13
3-4. PT Board, VOL-SEL Board	13
3-5. Mechanism Deck Section (MDM-7A)	14
3-6. BD Board	14
4. TEST MODE	15
5. ELECTRICAL ADJUSTMENTS	20
6. DIAGRAMS
6-1. Circuit Boards Location	31
6-2. Block Diagrams
• BD Section	32
• Main Section	33
6-3. Printed Wiring Board – BD Section –	35
6-4. Schematic Diagram – BD Section (1/2) –	36
6-5. Schematic Diagram – BD Section (2/2) –	37
6-6. Printed Wiring Board – Main Section (Side A) –	38
6-7. Printed Wiring Board – Main Section (Side B) –	39
6-8. Schematic Diagram – Main Section (1/3) –	40
6-9. Schematic Diagram – Main Section (2/3) –	41
6-10. Schematic Diagram – Main Section (1/3) –	42
6-11. Printed Wiring Board – Power Section –	43
6-12. Printed Wiring Board – Display Section –	44
6-13. Schematic Diagram – Display Section –	45
6-14. IC Block Diagrams	46
6-15. IC Pin Functions	48
7. EXPLODED VIEWS
7-1. Chassis Section	54
7-2. Front Panel Section	55
7-3. Mechanism Section-1 (MDM-7A)	56
7-4. Mechanism Section-2 (MDM-7A)	57
8. ELECTRICAL PARTS LIST	58

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