Sony MDS-PC3 specifications MNT0 FOK

Page 50

• IC151 CXD2662R Digital Signal Processor, Digital Servo Signal Processor (BD BOARD)

Pin No.

Pin Name

I/O

 

 

 

 

Function

 

 

 

 

 

 

 

 

1

MNT0 (FOK)

O

 

FOK signal output to the system control (monitor output)

 

“H” is output when focus is on

 

 

 

 

 

 

 

 

 

 

 

 

2

MNT1 (SHCK)

O

 

Track jump detection signal output to the system control (monitor output)

 

 

 

 

 

 

 

 

3

MNT2 (XBUSY)

O

 

Monitor 2 output to the system control (monitor output)

 

 

 

 

 

 

 

 

4

MNT3 (SLOC)

O

 

Monitor 3 output to the system control (monitor output)

 

 

 

 

 

 

 

 

5

SWDT

I

 

Writing data signal input from the system control

 

 

 

 

 

 

 

 

6

SCLK

I (S)

 

Serial clock signal input from the system control

 

 

 

 

 

 

 

 

7

XLAT

I (S)

 

Serial latch signal input from the system control

 

 

 

 

 

 

 

 

8

SRDT

O (3)

 

Reading data signal output to the system control

 

 

 

 

 

 

 

 

9

SENS

O (3)

 

Internal status (SENSE) output to the system control

 

 

 

 

 

 

 

 

10

XRST

I (S)

 

Reset signal input from the system control “L”: Reset

 

 

 

 

 

 

 

 

11

SQSY

O

 

Subcode Q sync (SCOR) output to the system control

 

“L” is output every 13.3 msec. Almost all, “H” is output

 

 

 

 

 

 

 

 

 

 

 

 

12

DQSY

O

 

Digital In U-bit CD format or MD format subcode Q sync (SCOR) output to the system

 

control

 

 

 

 

 

 

 

 

 

 

 

 

13

RECP

I

 

Laser power switching input from the system control “H”: Recording, “L”: Playback

 

 

 

 

 

 

 

 

14

XINT

O

 

Interrupt status output to the system control

 

 

 

 

 

 

 

 

15

TX

I

 

Recording data output enable input from the system control

 

 

 

 

 

 

 

 

16

OSCI

I

 

System clock input (512Fs=22.5792 MHz)

 

 

 

 

 

 

 

 

17

OSCO

O

 

System clock output (512Fs=22.5792 MHz) (Not used)

 

 

 

 

 

 

 

 

18

XTSL

I

 

System clock frequency setting “L”: 45.1584 MHz, “H”: 22.5792 MHz (Fixed at “H”)

 

 

 

 

 

 

 

 

19

DIN0

I

 

Digital audio input (Optical input)

 

 

 

 

 

 

 

 

20

DIN1

I

 

Digital audio input (Optical input)

 

 

 

 

 

 

 

 

21

DOUT

O

 

Digital audio output (Optical output)

 

 

 

 

 

 

 

 

22

DADTI

I

 

Serial data input

23

LRCKI

I

 

LR clock input “H” : Lch, “L” : R ch

 

 

 

 

 

 

 

 

24

XBCKI

I

 

Serial data clock input

 

 

 

 

 

25

ADDT

I

 

Data input from the A/D converter

 

 

 

 

 

 

 

 

26

DADT

O

 

Data output to the D/A converter

 

 

 

 

 

 

 

 

27

LRCK

O

 

LR clock output for the A/D and D/A converter (44.1 kHz)

 

 

 

 

 

 

 

 

28

XBCK

O

 

Bit clock output to the A/D and D/A converter (2.8224 MHz)

 

 

 

 

 

 

 

 

29

FS256

O

 

11.2896 MHz clock output (Not used)

 

 

 

 

 

30

DVDD

 

+3V power supply (Digital)

 

 

 

 

 

31 to 34

A03 to A00

O

 

DRAM address output

35

A10

O

 

DRAM address output (Not used)

 

 

 

 

 

 

 

 

36 to 40

A04 to A08

O

 

DRAM address output

 

 

 

 

 

 

 

 

41

A11

O

 

DRAM address output (Not used)

 

 

 

 

 

 

 

 

42

DVSS

 

Ground (Digital)

43

XOE

O

 

Output enable output for DRAM

 

XCAS

 

 

 

44

O

 

 

CAS

signal output for DRAM

45

A09

O

 

Address output for DRAM

 

 

 

 

 

 

 

 

46

XRAS

O

 

 

 

 

signal output for DRAM

 

RAS

 

 

 

 

 

47

XWE

O

 

Write enable signal output for DRAM

 

 

 

 

 

 

 

 

48

D1

I/O

 

 

 

 

 

 

 

 

 

Data input/output for DRAM

49

D0

I/O

 

50, 51

D2, D3

I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

* I (S) stands for Schmidt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O

50

Image 50
Contents Specifications MDS-PC3SELF-DIAGNOSIS Function TOC t Edit t TOC Edit t blank tItems of Error History Mode Items and Contents Diagrams Table of ContentsDisassembly Table of Error CodesLead free soldering Section Service NotesFlexible Circuit Board Repairing JIG for Checking BD Board Waveform Record Precedure Main Board Component Side Checks Prior to Parts Replacement and AdjustmentsForced Reset Retry Cause Display Mode Bit BinaryHexadecimal t Binary Conversion Table Remote Parts Description General SectionUsing the Display Hooking Up Section Disassembly MD Mechanism Deck MDM-7AMain Board Over Light Head HR901, BD MD BoardHolder Assy Loading Motor Assy M103Sled Motor Assy M102, Slider Optical PICK-UP MD KMS-260B/JINSpindle Motor Assy M101 Setting the Test Mode Section Test ModePrecautions for USE of Test Mode Exiting the Test ModeSelecting the Test Mode Display Details Mark GroupOperating the Continuous Playback Mode Error rate display Test Mode DisplaysMode display Functions of Other ButtonsInformation Meanings of Other DisplaysAutomatic SELF-DIAGNOSIS Function Check before replacement Section Electrical AdjustmentsParts Replacement and Adjustment Adjustment flow Precautions for Adjustments Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK- UP KMS-260B Using the Continuously Recorded Disc Checks Prior to RepairsAuto Check Other ChecksPlay Check MO Error Rate Check CD Error Rate CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Traverse Adjustment Iop NV SaveFocus Bias Adjustment CD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points Diagrams Block Diagrams BD Section MDS-PC3Main Section Sclk CclkPrinted Wiring Board BD Section SemiconductorPIN Function MDS-PC3 Printed Wiring Board Main Section PIN Functon MDS-PC3 Printed Wiring Board Panel Section Schematic Diagram Panel Section See page 35 for Waveforms IC Block Diagrams IC101 CXA2523AR BD BoardLB1830M-S-TE-L Main Board BH3541F-E2 Main Board IC PIN Functions IC101 CXA2523AR RF Amplifier BD BoardMNT0 FOK Mvci IC300 M30805SGP Main Board Shck MNT1 Section Exploded Views Chassis SectionMechanism MDM-7A 319 302 320 317 304 308 303 305 306 301 318 307Mechanism 351Section Electrical Parts List Remarks Ref. No DescriptionMetal Chip Main PIN, Connector 2P Diode Main Panel MDS-PC3 Panel KEY REFLECT/PROTECT SW