Pin No | Sony MDS-NT1 specification

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)

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Sony MDS-NT1 service manual Pin No

Contents

MDS-NT1 Specifications MDS-NT1 SELF-DIAGNOSIS Function Playback Recording Cause/Remedy Indicator Green Red MDS-NT1 Items of Error History Mode Items and Contents Error Code Details of Error Table of Error Codes Disassembly Table of ContentsDiagrams SELF-DIAGNOSIS Function Flexible Circuit Board Repairing BD Board Conductor Side MDS-NT1 Section Servicing Notes JIG for Checking BD Board Waveform Record Procedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and Adjustments in MD Software Reset Service ModeMicrocomputer Version Display System Requirements Front View MDS-NT1 Section General Disassembly Flow MDS-NT1 Section Disassembly Case Upper MD Mechanism Deck MDM-7S2B Main Board BD BOARD, Over Write Head HR901 Front Panel Section Loading Motor Assy M103 Holder Assy Optical PICK-UP KMS-262E Sled Motor Assy M102 Spindle Motor Assy M101 Precautions for USE of Test Mode MDS-NT1 Section Test ModeSetting the Test Mode Releasing the Test Mode Check Selecting the Test Mode Operating the Continuous Playback Mode Information Automatic SELF-DIAGNOSIS Function MDS-NT1 Section Electrical Adjustments Parts Replacement and AdjustmentCheck before replacement YES Adjustment flow Precautions 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-262E Laser power meter Precautions for Adjustments Temperature Compensation Offset Check Using the Continuously Recorded DiscLaser Power Check Checks Prior to Repairs Auto Check Other ChecksTraverse Check CD Error Rate Check Play Check MO Error Rate CheckFocus Bias Check Self-Recording/playback Check Temperature Compensation Offset Adjustment Initial Setting of Adjustment ValueLaser Power Adjustment Recording and Displaying the Iop Iop NV Save Traverse Adjustment ENTER/YES button Focus Bias Adjustment Auto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level Adjustment Adjustment and Checking Loacation Block Diagram Servo Section MDS-NT1 Section Diagrams 36 a Block Diagram Main Section 22.7 ns Waveforms BD Board Semiconductor Location Printed Wiring Board BD Board 4AA 3AA B3B 2BB Schematic Diagram BD Board 2/2 See page 38 for Waveforms IC451 Printed Wiring Board Main Board Component Side Main Board Printed Wiring Board Main Board Conductor Side 1AA AA2 AA3 GND Panel Board Conductor Side Printed Wiring Board Panel Board Schematic Diagram Panel Board CXA2523AR IC Block Diagrams BD Board Main Board IC401 BH6519FS-E2 IC440 M54641L IC PIN Function Description BD Board IC101 CXA2523AR RF AMP, FOCUS/TRACKING Error AMP MNT2 Xbusy Xcas APC Main Board IC301 M30835FJGP-01 System Controller PLAY-SW Pin No Extal Case Section Section MDS-NT1 Exploded Views 56 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 355 354 362 359 352 Resistors MDS-NT1 Section Electrical Parts List Diode MDS-NT1 Main Switch FB1 Miscellaneous MDS-NT1 Main Panel Motor ASSY, Loading Revision History