Sony MDS-NT1 service manual Pin No

Page 57

MDS-NT1

• MAIN BOARD IC301

CXD1873R (NET MD SECURITY, DIGITAL SIGNAL PROCESSOR, USB INTERFACE)

 

 

 

 

 

 

 

 

Pin No.

Pin Name

 

I/O

 

 

 

Description

 

 

 

 

 

1

VDEA0

 

—

Power supply terminal (+3.3V) (for DSP)

2

VSEA0

 

—

Ground terminal (for DSP)

 

 

 

 

 

 

 

3

PLLSW

 

I

PLL function on/off control signal input from the system controller “L”: PLL on

 

 

 

 

 

 

4

TEST0

 

I

Test input terminal

Normally fixed at “L”

 

 

 

 

 

5

DSPCLK

 

I

DSP transfer clock signal input terminal (256Fs: 11.2896MHz)

 

 

 

 

 

 

 

6

VDC0

 

—

Power supply terminal (+3.3V)

 

 

7

DSPIF0

 

O

Digital audio signal output terminal when recording mode

8

DSPIF1

 

O

L/R sampling clock signal (44.1 kHz) output terminal

 

 

 

 

 

9

VDEA1

 

—

Power supply terminal (+3.3V) (for DSP)

 

 

 

 

 

10

DSPIF2

 

O

Bit clock signal (2.8224 MHz) output terminal

 

 

 

 

 

 

 

11

DSPIF3

 

O

Recording data output terminal

 

 

 

 

 

 

 

 

 

12

VDC1

 

—

Power supply terminal (+3.3V)

 

 

13

VSC0

 

—

Ground terminal

 

 

 

14

EXTIF0

 

I/O

Not used

 

 

 

 

 

 

 

 

 

 

 

15

EXTIF1

 

I/O

Not used

 

 

 

 

 

 

 

 

16

VDEA2

 

—

Power supply terminal (+3.3V) (for DSP)

 

 

 

 

 

 

 

17

VSEA1

 

—

Ground terminal (for DSP)

 

 

 

 

 

 

 

 

 

 

18

EXTIF0

 

I/O

Not used

 

 

 

19

EXTIF1

 

I/O

Not used

 

 

 

20

VDC2

 

—

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

 

 

21

VSC1

 

—

Ground terminal

 

 

 

 

 

 

 

 

 

22

DNKCK

 

O

Serial ROM clock signal output terminal

Not used

 

 

 

 

 

23

DNKCS

 

O

Serial ROM chip select signal output terminal Not used

 

 

 

 

 

24

VDEA3

 

—

Power supply terminal (+3.3V) (for DSP)

25

VSEA2

 

—

Ground terminal (for DSP)

 

 

26

DNKSO

 

O

Serial ROM data output terminal

Not used

27

DNKSI

 

I

Serial ROM data input terminal

Not used

 

 

 

 

 

 

28

DNKST

 

I

Serial ROM status input terminal

Not used

 

 

 

 

 

 

 

29

VDC3

 

—

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

 

 

30

VSC2

 

—

Ground terminal

 

 

 

 

 

 

 

 

 

31

DNKRS

 

I

Serial ROM reset signal input terminal

Not used

32

TEST1

 

I

Test input terminal

Normally fixed at “L”

33

VDEA4

 

—

Power supply terminal (+3.3V) (for DSP)

 

 

 

 

 

 

 

 

34

PLLTHRU

 

I

Not used

 

 

 

 

 

 

 

 

 

 

35

USBEN

 

I

USB enable signal input terminal

 

 

 

 

 

 

 

 

 

36

VDC4

 

—

Power supply terminal (+3.3V)

 

 

 

 

 

 

 

 

 

 

37

VSC3

 

—

Ground terminal

 

 

 

38

USBVSS

 

—

Ground terminal (for USB)

 

 

39

DP

 

I/O

USB communication input/output

 

 

 

 

 

 

 

 

 

40

DM

 

I/O

USB communication input/output

 

 

 

 

 

 

 

41

USBVDD

 

—

Power supply terminal (+3.3V) (for USB)

 

 

 

 

 

42

USBSW

 

O

USB communication on/off control signal output “H”: USB communication on

 

 

 

 

 

43

PLLVDD

 

—

Power supply terminal (+3.3V) (for USB)

44

PLLVSS

 

—

Ground terminal (for USB)

 

 

45

OSCVDD

 

—

Power supply terminal (+3.3V) (for OSC)

 

 

 

 

 

 

 

 

57

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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 FunctionMDS-NT1 Section Electrical Adjustments Parts Replacement and AdjustmentCheck 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 RepairsAuto Check Other ChecksTraverse 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 Case B Section 102 101 103104 105 311 310 319 304 308 302 306 320 301 305 313 314 315 316317 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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