Sony MDS-JE770 specifications Display Board, KB Board, KEY-SW Board, HP Board

Page 46

MDS-JE770

6-9. PRINTED WIRING BOARD – DISPLAY SECTION – • See page 36 for Circuit Board Location.

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

1

 

2

3

 

DISPLAY BOARD

 

4

5

6

7

8

9

10

11

12

13

A

B

C

JW704

 

JW711

JW712

JW713

JW714

JW715

JW716

JW703

 

 

JW709

 

 

 

 

 

 

C766

 

JW708

 

 

 

 

 

 

 

 

 

 

 

60

 

JW707

 

R766

 

 

 

 

 

 

61

 

JW706

 

 

 

 

 

 

 

 

 

 

 

 

 

JW705

 

JW710

 

 

JW702

 

 

 

 

 

 

 

 

73

 

 

 

 

 

 

 

71

 

 

 

 

 

 

 

Q775

 

 

 

 

 

 

 

JW701

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

R775

 

 

 

 

 

 

 

8

 

 

 

 

 

 

1 CN710

JW717

41 40

IC760

21

20

80 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LP719

C771

C767

C768

 

 

 

 

 

 

 

 

R767

 

R763

R761

 

 

LP710

 

 

 

 

 

 

 

 

 

Q761

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

DISPLAY

 

R768

R769

R770

C769

C770

JW719

C761

C762

JW720

JW721

JW722

 

R764

R762

 

C760

JW726

JW718

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q762

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C753

 

FL750

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLUORESCENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R721

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TUBE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JW727

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

JW728

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

JW729

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JW725

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JW724

 

 

 

 

 

 

 

 

 

 

 

JW723

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JW730

S721

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EJECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C751

 

 

JW731

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D775

 

 

 

 

 

 

JW732

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MDLP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LP750

 

 

R715

JW735

JW733

JW738

S704

M

S715

INPUT

R716

 

S706

 

H

JW734

C700

CN700

S703

 

M

S701

 

 

REC

 

z

R704

 

R705

 

S716

 

REC MODE

 

 

R702

 

R703

S705

 

X

 

S702

 

x

 

R706

 

JW737

C720

JW736

 

JW739

LP720

S714

 

 

 

 

CLEAR

 

 

 

 

 

 

3

2

1

R712

 

 

 

 

 

5

S713

4

 

 

 

S711

l

AMS

L

MENU/

PUSH ENTER

NO

 

 

 

 

R714

R713

S712

YES

1-681-741- 11

(11)

D

C

MAIN

KB BOARD

MAIN

BOARD E

 

 

BOARD

CN830

 

 

 

E

KEY–SW BOARD

LP740

S726

I/

R747

C740

 

 

 

 

S746

 

 

 

TIMER

 

 

REC

OFF

PLAY

C743

 

 

OUT GND VCC

 

IC740

 

LP730

C742

S722

 

S723

 

REPEAT

PLAY MODE

 

 

 

 

R723

 

 

S733

S732

 

 

GROUP

GROUP

 

 

 

SKIP

R1733

JW752

D733

 

Q733

 

E

 

 

 

R742

 

 

 

S724

 

LEVEL/

 

DISPLAY/CHAR

R724

R725

 

S731

 

TIME

R733

R732

R726

Q726

E

 

 

CN720

 

8

(Page 45)

CN2780

6

1

CN3

 

(Page 45)

 

 

 

 

PC LINK

KEY BOARD

J780

R1785

 

R1781

L1782

 

 

 

 

L1786

 

 

L1783

 

 

 

 

L1784

L783

L785

L781

 

 

 

 

 

 

R782

R786

L784

HP BOARD

MAIN

3

L799

BOARD

D

 

CN390

1

R791

CN790

(Page 45)

 

 

 

 

RV790

R796

 

 

 

 

L1790

C791

C796

J790

 

 

PHONES

F

D726 STANDBY

R741

R722

R1726

JW750

JW751

1

 

1-681-742-

11

(11)

 

65

43

2 1

 

11

1-681-744-

(11)

RV790

PHONE

LEVEL

1-681-743-

(CHASSIS)

MDS-JE770

E 51499

11

(11)

•Semiconductor

Location

Ref. No.

Location

 

 

D726

F-1

D733

E-4

D775

C-7

IC740

F-3

IC760

A-4

Q726

E-6

Q733

E-5

Q761

A-7

Q762

A-7

Q775

B-2

 

 

46 46

Page 45 Page 47
Image 46
Page 45 Page 47
Contents MDS-S50 Specifications873-890-11 MDM-7AMDS-JE770 Genera l Power requirementsSupplied accessories SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents Diagrams Table of ContentsDisassembly 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 Setting the Test Mode MDS-JE770 Section Test ModePrecautions for USE of Test Mode Exiting the Test ModeSelecting the Test Mode Operating the Continuous Playback Mode MENU/NOError rate display Test Mode DisplaysMode display Functions of Other ButtonsAutomatic SELF-DIAGNOSIS Function When Memory NG is DisplayedMeanings of Other Displays InformationParts Replacement and Adjustment MDS-JE770 Section Electrical AdjustmentsCheck before replacement Adjustment flow Auto Gain Control Output LevelPrecautions for Adjustments Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-260B/260E Temp AdjustUsing the Continuously Recorded Disc Checks Prior to RepairsTraverse Check Auto CheckOther Checks Traverse WaveformFocus Bias Check Play Check MO Error Rate CheckCD Error Rate Check Self-Recording/playback CheckTemperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Traverse Adjustment Iop NV SaveFocus Bias Adjustment CD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points MDS-JE770 Section Diagrams Circuit Boards LocationBD Board For schematic diagramsFor printed wiring boards Main BoardIC171 Block Diagrams BD SectionIC190 IC360 2/2 Main SectionIC1 2/2 Optical Pick UP Block SemiconductorOVERSemiconductor Write HeadBoard Board Main Main Schematic Diagram Main /2 See page 51 for IC Block Diagrams Model is printed on diagram IC1KEY-SW Board Display BoardKB Board HP BoardSchematic Diagram Display Section LED DriveD910 RY910C951 C952 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 Asyi MvciAsyo AvddFrdr TfdrFfdr FS4Fldt IIC PowerADA.RESET FlckDINT1/H Clip ADA. LatchEPN ProtectBeep SW TimerSTB REC FlcsVFL1 ResetVDISP1 OSC0Section Exploded Views Chassis SectionFL750 1-517-987-11 Indicator TUBE, Fluorescent Not supplied Supplied with J790 FL750 With RV790Mechanism MDM-7A Motor ASSY, Sled HEAD, Over LightMotor ASSY, Spindle Motor ASSY, LoadingMDS-JE770 Section Electrical Parts List Jumper Resistor SwitchMetal Chip 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
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