Sony MDS-JE770 specifications Table of Contents, Disassembly, Diagrams, Exploded Views

MDS-JE770

Display						History
spdl change	Mode for erasing the total spdl rp tm time
	These histories are based on the time of replacement of the spindle motor. If the spindle motor has been replaced,
	perform this procedure and erase the history.
	Procedure
	1.	Press the		lAMSL		knob when displayed as “spdl change”
	2.	Press the	YES		button when the display changes to “spdl change?”
	When “Complete!” is displayed, it means erasure has completed.

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 models	4-233-025-6s
UK models	4-236-047-1s
SP models	4-233-025-8s

• Abbreviation

SP : Singapore model

	TABLE OF CONTENTS
1. SERVICING NOTES		5
2. GENERAL		12
3. DISASSEMBLY
3-1.	Disassembly flow	13
3-2.	Upper Case (408226)	14
3-3.	Front Panel Section	14
3-4.	Main Board	15
3-5. PT Board, VOL-SEL Board (SP model)		15
3-6.	Mechanism Deck Section ( MDM-7A)	16
3-7.	Over Light Head (HR901), BD Board	16
3-8.	Holder Assy	17
3-9.	Loading Motor Assy (M103)	17
3-10. Sled Motor Assy (M102), Slider		18
3-11. Optical Pick-up		18
3-12. Spindle Moter Assy (M101)		19
4. TEST MODE		20
5. ELECTRICAL ADJUSTMENTS		25
6. DIAGRAMS
6-1.	Circuit Boards Location	36
6-2.	Block Diagrams
	•BD Section	38
	•Main Section	39
6-3. Printed Wiring Board – BD Board –		40
6-4. Schematic Diagram – BD Section (1/2) –		41
6-5. Schematic Diagram – BD Section (2/2) –		42
6-6. Schematic Diagram – Main Section (1/2) –		43
6-7. Schematic Diagram – Main Section (2/2) –		44
6-8.	Printed Wiring Board – Main Section –	45
6-9. Printed Wiring Board – Display Section –		46
6-10. Schematic Diagram – Display Section –		47
6-11. Printed Wiring Board – Power Section –		48
6-12. Schematic Diagram – Power Section –		49
6-13. IC Block Diagrams		50
6-14. IC Pin Functions		52
7. EXPLODED VIEWS
7-1.	Chassis Section	60
7-2.	Front Panel Section	61
7-3.	Mechanism Section-1 (MDM-7A)	62
7-4.	Mechanism Section-2 (MDM-7A)	63

8. ELECTRICAL PARTS LIST 64

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