Sony MDS-NT1 service manual IC Block Diagrams BD Board, CXA2523AR

Page 48

MDS-NT1

•IC Block Diagrams

– BD Board –

IC101

CXA2523AR

MORFO

MORFI

RFO

OPN

OPO

ADDC

COMPP

COMPO

AGCI

RF AGC

RF

PEAK

48

47

46

45

44

43

42

41

40

39

38

37

USROP

–

+

RF AGC

EQ

+

–

RFA1

USRC

DET

EQ

+ –

RFA2

RFA3

BPF3T

I

1

–

PEAK3T

AUX

1

HLPT

–1

3T

SW

–

P-P

–

2

–2

J

2

–

OFST

PTGR

3T

WBL

TEMP

PEAK

–

1

–2

CVB

–

BOTTOM

36

BOTM

+

–

2

–1

VC

3

GRV

PBH

–

GRVA

PBSW

WBL

35

ABCD

+

–

34

FE

A

4

33

AUX

–

IVR

–

AA

–

BPFC

–

ABCDA

32

ADFG

B

5

+

31

ADAGC

IVR

–

BB

+

+

30

ADIN

–

FEA

–

C

6

+

IVR

–

CC

DET

BPF22

–

ADIP

–

WBL

29

ADFM

+

ATA

AGC

D

7

+

+

IVR

–

DD

WBL

–1

TG

SE

–

PTGR

–2

28

E

8

+

SEA

+

EE'

IVR

–

EE

+

27

CSLED

–

–

EFB

+

TESW

–1

TG

TE

EBAL

–2

26

ESW

TEA

F

9

+

+

IVR

–

FF

WBL

–

FF'

3T

VI CONV

25

WBLADJ

IV

GSW

FBAL

EQ

PD

10

AUXSW

BGR

+

–

COMMAND

+

–

SCRI - PARA

VREF

APC

11

DECODE

APCREF

12

13

14

15

16

17

18

19

20

21

22

23

24

GND

TEMPI

TEMPR

SWDT

SCLK

XLAT

XSTBY

F0CNT

VREF

EQADJ

3TADJ

VCC

48

Image 48

Contents Specifications MDS-NT1Playback Recording Cause/Remedy Indicator Green Red MDS-NT1 SELF-DIAGNOSIS FunctionItems of Error History Mode Items and Contents MDS-NT1Table of Error Codes Error Code Details of ErrorTable of Contents DisassemblyDiagrams SELF-DIAGNOSIS FunctionFlexible Circuit Board Repairing MDS-NT1 Section Servicing Notes BD Board Conductor SideJIG for Checking BD Board Waveform Record Procedure Checks Prior to Parts Replacement and Adjustments in MD Criteria for Determination Measure if unsatisfactoryService Mode Software ResetMicrocomputer Version Display System RequirementsMDS-NT1 Section General Front ViewMDS-NT1 Section Disassembly Disassembly FlowCase Upper Main Board MD Mechanism Deck MDM-7S2BFront Panel Section BD BOARD, Over Write Head HR901Holder Assy Loading Motor Assy M103Sled Motor Assy M102 Optical PICK-UP KMS-262ESpindle Motor Assy M101 MDS-NT1 Section Test Mode Precautions for USE of Test ModeSetting the Test Mode Releasing the Test ModeSelecting the Test Mode CheckOperating the Continuous Playback Mode Automatic SELF-DIAGNOSIS Function InformationMDS-NT1 Section Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement Adjustment flow YESPrecautions for Checking Laser Diode Emission Precautions for USE of Optical PICK- UP KMS-262A/262EHOW to Identify Optical PICK-UP KMS- 262A/KMS-262E KMS-262A KMS-262EPrecautions for Adjustments Laser power meterUsing the Continuously Recorded Disc Temperature Compensation Offset CheckLaser Power Check Checks Prior to RepairsAuto Check Other ChecksTraverse Check Play Check MO Error Rate Check CD Error Rate CheckFocus Bias Check Self-Recording/playback CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjustmentLaser Power Adjustment Recording and Displaying the IopTraverse Adjustment Iop NV SaveFocus Bias Adjustment ENTER/YES buttonError Rate Check Auto Gain Control Output Level AdjustmentCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment and Checking Loacation MDS-NT1 Section Diagrams Block Diagram Servo SectionBlock Diagram Main Section 36 aWaveforms BD Board 22.7 nsPrinted Wiring Board BD Board Semiconductor Location4AA 3AA Schematic Diagram BD Board 2/2 See page 38 for Waveforms B3B 2BBPrinted Wiring Board Main Board Component Side IC451Printed Wiring Board Main Board Conductor Side Main Board1AA AA2 AA3 GND Printed Wiring Board Panel Board Panel Board Conductor SideSchematic Diagram Panel Board IC Block Diagrams BD Board CXA2523ARIC401 BH6519FS-E2 Main BoardIC440 M54641L BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMP IC PIN Function DescriptionMNT2 Xbusy Xcas APC Main Board IC301 M30835FJGP-01 System Controller PLAY-SW Pin No Extal Section MDS-NT1 Exploded Views Case Section56 4-951-620-01 Screw 2.6X8, +BVTP Case B Section 102 101 103104 105 311 310 319 304 308 302 306 320 301 305 313 314 315 316317 303 307 359 358 357 360 356364 355 354 362 359 352MDS-NT1 Section Electrical Parts List ResistorsDiode Switch MDS-NT1 MainFB1 MDS-NT1 Main Panel MiscellaneousMotor ASSY, Loading Revision History