Sony MDS-JE770 specifications SemiconductorOVER, Optical Pick UP Block, Write Head

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MDS-JE770

6-3. PRINTED WIRING BOARD – BD Board – • See page 36 for Circuit Board Location.

OPTICAL PICK - UP

BLOCK

(KMS - 260B/260E)

BD BOARD (SIDE A)

There are a few cases that the part isn’t mounted in model is printed on diagram.

BD BOARD (SIDE B)

HR901

• SemiconductorOVER

WRITE HEAD

Location

Ref. No.	Location

D101	A-4
Q101	B-1
Q131	C-1
Q132	B-1
Q133	B-1
Q134	B-1

5 4

1 2 3

B	A	• Semiconductor
B	A	Location
		Location

MAIN BOARD	MAIN BOARD	Ref. No.	Location		Ref. No.	Location

		D181	D-3		IC181	D-3
CN1	CN2	D181	D-3		IC181	D-3
CN1	CN2	D183	D-3		IC190	D-1
(Page 45)	(Page 45)	IC101	A-3		IC195	D-2
(Page 45)	(Page 45)	IC101	A-3
		IC102	B-3		Q121	B-3
		IC141	C-1		Q122	B-3
		IC151	C-2		Q181	D-3
		IC153	C-3		Q182	D-3
		IC171	D-2

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Contents Specifications 873-890-11MDS-S50 MDM-7AGenera l Power requirements Supplied accessoriesMDS-JE770 SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Table of Contents DisassemblyDiagrams Exploded ViewsMDS-JE770 Section Service Notes Flexible Circuit Board RepairingJIG for Checking BD Board Waveform IOPRecord Precedure KSN-260E Optical PICK-UP Block Type DiscriminationForced Reset Checks Prior to Parts Replacement and AdjustmentsMain Board Component Side Retry Cause Display Mode Bit BinaryHigher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary MDS-JE770 Section General Button DescriptionsMDS-JE770 Section Disassembly Disassembly FlowFront Panel Section Main Board Two screwsMechanism Deck Section MDM-7A Over Light Head HR901, BD BoardHolder Assy Loading Motor Assy M103Sled Motor Assy M102, Slider Optical PICK-UPSpindle Moter Assy M101 MDS-JE770 Section Test Mode Precautions for USE of Test ModeSetting the Test Mode Exiting the Test ModeSelecting the Test Mode Operating the Continuous Playback Mode MENU/NOTest Mode Displays Mode displayError rate display Functions of Other ButtonsWhen Memory NG is Displayed Meanings of Other DisplaysAutomatic SELF-DIAGNOSIS Function InformationParts Replacement and Adjustment MDS-JE770 Section Electrical AdjustmentsCheck before replacement Adjustment flow Auto Gain Control Output LevelPrecautions for Checking Laser Diode Emission Precautions for USE of Optical PICK- UP KMS-260B/260EPrecautions for Adjustments Temp AdjustUsing the Continuously Recorded Disc Checks Prior to RepairsAuto Check Other ChecksTraverse Check Traverse WaveformPlay Check MO Error Rate Check CD Error Rate CheckFocus Bias Check Self-Recording/playback CheckTemperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Traverse Adjustment Iop NV SaveFocus Bias Adjustment Error Rate Check Auto Gain Control Output Level AdjustmentCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points MDS-JE770 Section Diagrams Circuit Boards LocationFor schematic diagrams For printed wiring boardsBD Board Main BoardIC171 Block Diagrams BD SectionIC190 IC360 2/2 Main SectionIC1 2/2 SemiconductorOVER SemiconductorOptical Pick UP Block Write HeadBoard Board Main Main Schematic Diagram Main /2 See page 51 for IC Block Diagrams Model is printed on diagram IC1Display Board KB BoardKEY-SW Board HP BoardSchematic Diagram Display Section LED DriveRY910 C951 C952D910 CN921 C924 LF900 C910Schematic Diagram Power Section MainIC Block Diagrams IC101 CXA2523AR BD BoardIC500 AK4524 Main Board IC101 CXA2523AR RF Amplifier BD Board IC PIN Function DescriptionPin No Pin Name Description Pin No Pin Name Desription Mvci AsyoAsyi AvddTfdr FfdrFrdr FS4IIC Power ADA.RESETFldt FlckADA. Latch EPNDINT1/H Clip ProtectTimer STBBeep SW REC FlcsReset VDISP1VFL1 OSC0Section Exploded Views Chassis SectionFL750 1-517-987-11 Indicator TUBE, Fluorescent Not supplied Supplied with J790 FL750 With RV790Mechanism MDM-7A HEAD, Over Light Motor ASSY, SpindleMotor ASSY, Sled Motor ASSY, LoadingMDS-JE770 Section Electrical Parts List Switch Metal ChipJumper Resistor ShortMDS-JE770 Display HP KB KEY-SW KEY-SW Main MDS-JE770 Main 2SD2144S-TP-UVW Resistor MDS-JE770 Main PT VOL-SELMemo MDS-JE770 Revision History