Sony MDS-NT1 service manual IC401 BH6519FS-E2, Main Board

Page 49

MDS-NT1

IC401

BH6519FS-E2

 

 

 

 

 

 

 

 

 

 

 

CAPA–

CAPA+

IN2R

IN2F

VM2

OUT2F

PGND2

OUT2R

VM12

OUT1R

PGND1

OUT1F

VM1

IN1F

IN1R

VDD

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

 

 

INTERFACE

 

AMP

 

AMP

 

AMP

 

 

AMP

INTERFACE

VDD

CHARGE

 

PREDRIVE

 

 

 

 

 

 

 

PREDRIVE

 

 

PUMP.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PREDRIVE

 

 

 

 

 

 

 

PREDRIVE

 

 

 

 

INTERFACE

 

AMP

 

AMP

 

AMP

 

 

AMP

INTERFACE

PSB

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

GND

VG

IN4R

IN4F

VM4

OUT4F

PGND4

OUT4R

VM34

OUT3R

PGND3

OUT3F

VM3

IN3F

IN3R

PSB

– MAIN Board –

IC400

MAX1626ESA-TE2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

GND

 

 

 

 

 

 

 

 

 

 

7

EXT

 

 

 

 

1.5V

 

 

 

 

 

 

 

 

 

 

ERROR

MINIMUM ON-TIME

 

 

 

 

 

 

 

 

ONE-SHOT

 

 

 

 

 

 

 

COMPARATOR

 

 

 

 

 

 

 

R2

 

TRIG

Q

 

 

 

OUT

1

 

–

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRIG

Q

 

 

 

 

 

R3

R1

 

 

MINIMUM OFF-TIME

 

 

 

 

 

 

 

 

 

 

ONE-SHOT

 

 

 

 

3/5

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

SHDN

3

 

 

REF

Q

 

 

 

 

 

 

 

 

 

 

 

R

 

S

 

 

 

 

REF

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–

 

6

CS

 

 

 

 

 

 

CURRENT-SENSE

+

– +

5

V+

 

 

 

 

 

 

COMPARATOR

 

 

 

 

IC420

M62016FP-E1

 

 

 

 

 

 

 

 

 

VCC

 

NC

NC

NC

 

 

 

 

 

 

 

3

 

4

5

6

 

 

 

 

 

 

R1

 

COM

INTERRUPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

SIGNAL

8

INT

 

 

 

 

 

 

 

–

 

 

 

 

 

 

 

GENERATOR

 

 

 

 

 

 

R2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

RESET

 

 

 

 

 

 

 

 

 

+

1

RESET

 

 

 

 

 

 

 

SIGNAL

 

 

 

 

 

 

 

–

 

 

 

 

R4

 

 

GENERATOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

2

 

 

 

 

 

 

 

 

 

GND

 

CD

 

 

 

 

 

 

49

Page 48 Page 50
Image 49
Page 48 Page 50
Contents MDS-NT1 SpecificationsMDS-NT1 SELF-DIAGNOSIS Function Playback Recording Cause/Remedy Indicator Green RedMDS-NT1 Items of Error History Mode Items and ContentsError Code Details of Error Table of Error CodesDisassembly Table of ContentsDiagrams SELF-DIAGNOSIS FunctionFlexible Circuit Board Repairing BD Board Conductor Side MDS-NT1 Section Servicing NotesJIG for Checking BD Board Waveform Record Procedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and Adjustments in MDSoftware Reset Service ModeMicrocomputer Version Display System RequirementsFront View MDS-NT1 Section GeneralDisassembly Flow MDS-NT1 Section DisassemblyCase Upper MD Mechanism Deck MDM-7S2B Main BoardBD BOARD, Over Write Head HR901 Front Panel SectionLoading Motor Assy M103 Holder AssyOptical PICK-UP KMS-262E Sled Motor Assy M102Spindle Motor Assy M101 Precautions for USE of Test Mode MDS-NT1 Section Test ModeSetting the Test Mode Releasing the Test ModeCheck Selecting the Test ModeOperating the Continuous Playback Mode Information Automatic SELF-DIAGNOSIS FunctionParts Replacement and Adjustment MDS-NT1 Section Electrical AdjustmentsCheck before replacement YES Adjustment flowPrecautions for USE of Optical PICK- UP KMS-262A/262E Precautions for Checking Laser Diode EmissionHOW to Identify Optical PICK-UP KMS- 262A/KMS-262E KMS-262A KMS-262ELaser power meter Precautions for AdjustmentsTemperature Compensation Offset Check Using the Continuously Recorded DiscLaser Power Check Checks Prior to RepairsOther Checks Auto CheckTraverse Check CD Error Rate Check Play Check MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckTemperature Compensation Offset Adjustment Initial Setting of Adjustment ValueLaser Power Adjustment Recording and Displaying the IopIop NV Save Traverse AdjustmentENTER/YES button Focus Bias AdjustmentAuto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment and Checking Loacation Block Diagram Servo Section MDS-NT1 Section Diagrams36 a Block Diagram Main Section22.7 ns Waveforms BD BoardSemiconductor Location Printed Wiring Board BD Board4AA 3AA B3B 2BB Schematic Diagram BD Board 2/2 See page 38 for WaveformsIC451 Printed Wiring Board Main Board Component SideMain Board Printed Wiring Board Main Board Conductor Side1AA AA2 AA3 GND Panel Board Conductor Side Printed Wiring Board Panel BoardSchematic Diagram Panel Board CXA2523AR IC Block Diagrams BD BoardMain Board IC401 BH6519FS-E2IC440 M54641L IC PIN Function Description BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMPMNT2 Xbusy Xcas APC Main Board IC301 M30835FJGP-01 System Controller PLAY-SW Pin No Extal Case Section Section MDS-NT1 Exploded Views56 4-951-620-01 Screw 2.6X8, +BVTP 102 101 103 Case B Section104 105 302 306 320 301 305 313 314 315 316 311 310 319 304 308317 303 307 358 357 360 356 359364 355 354 362 359 352Resistors MDS-NT1 Section Electrical Parts ListDiode MDS-NT1 Main SwitchFB1 Miscellaneous MDS-NT1 Main PanelMotor ASSY, Loading Revision History
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