Sony MDS-JE770 specifications Schematic Diagram Main /2 See page 51 for IC Block Diagrams

Page 44

MDS-JE770

6-7. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – • See page 51 for IC Block Diagrams.

IC440

M54641L

LOADING DRIVER

R441

22k

1

R442

Q440,445

Q440

15k

C442

REFERENCE

0.01

UN4211-TA

2

VOLTAGE

3

C441

R443

SWITCH

100

22k

4

16V

Q445

2SA1115TP-EF

5

D433

R432

R431

D431

1SS119-72

680

100

1SS119-72

C432

R433

C431

220

22

33

D432

25V

25V

1SS119-72

R434

22k

D409

11EQS04-NTAB2

IC401

6

BA033T

D408

11EQS04-NTAB2

7

+3.3V

IC406

M62016L

REGULATOR

D406

1SS133T-72

D401

RESET

11EQS04-NTA2B

D402

11EQS04-NTA2B

R406

220

C401

9

R407

CN406

10000

D403

D404

C932

C404

16V

C931

10k

2P

11EQS04-NTA2B

11EQS04-NTA2B

0.1

100

C402

0.1

10V

0.1

C406

C405

BT406

ML1220

0.33

0.01

50V

D411

8

11ES2-NTA2B

D412

11ES2-NTA2B

D461

C930

IC411

11ES2-NTA2B

0.1

M5F7805L

C412

0.1

C411

C461

+5V

10000

FB465

1000

D462

C941

C416

REGULATOR

16V

0∝H

35V

11ES2-NTA2B

0.1

1000

FB460

C942

6.3V

D466

0.1

C466

0∝H

1000

11ES2-NTA2B

35V

R423

100k

D467

FB410

JW

11ES2-NTA2B

MAIN

BOARD

(1/2)

(Page43)

R424

C425

R421

R425

220

22k

C422

C421

220

47

0.1

0.1

50V

10

11

R420

C423

12

JUMPER

100

D421

C424

63V

D422

0.1

11ES2-NTA2

RD4.7EB2

IC421

M5293L

13

14

-32V

REGULATOR

15

JW451

JUMPER

R911

16

2.2k

Q911

2SD2144S-TP-UVW

RELAY

17

R912

DRIVE

47k

JW452

JUMPER

18

19

R21

R821

R22

R822

20

10k

10k

10k

10k

R824

KB.DATA

4.7k

KB.CLK

Q35

CN830

UN4211-TA

L831

BUFFER

6P

JUMPER

R827

Q21

+5V

4.7k

UN4211-TA

Q822

R823

IIC/KB CLK

BUFFER

10k

Q821

2SC2603TP-EF

IIC/KB DATA

2SC2603TP-EF

R826

BUFFER

BUFFER

GND

10k

L834

IIC BUSY

KB

JUMPER

BOARD

IIC POWER

CN2780

UN4211-TA

FB832

33FB8

835FB

836FB

KB.CTL

(Page47)

Q34

R828

KEYBOARD

10k

OFF SWITCH

R825

10k

REW PO

LKC

TAAD

SYUB

IIC

IIC

IIC

IIC

R851

R855

5.6k

D851

R856

C853

J851

JUMPER

1SS133T-72

JUMPER

0.1

21

CONTROL

R852

A1

4.7k

Q851

22

2SC2603TP-EF

C851

A1 I/O

R853

0.1

10k

R854

C852

C855

C854

0.1

10

0.1

0.1

(CHASSIS)

44

CN400 11

5	PT
	BOARD
	CN921
	(Page49)
1
C940
0.1

EP940

EARTH

PLATE

(CHASSIS)

44

Image 44

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 DiscriminationMain Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Retry Cause Display Mode Bit BinaryHexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details 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 InformationCheck before replacement MDS-JE770 Section Electrical AdjustmentsParts Replacement and Adjustment 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 CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment 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 BoardIC190 Block Diagrams BD SectionIC171 IC1 2/2 Main SectionIC360 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 Pin No Pin Name Description IC PIN Function DescriptionIC101 CXA2523AR RF Amplifier BD Board 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