Sony MDS-JE630 service manual IC PIN Function Description

Page 46

6-14. IC PIN FUNCTION DESCRIPTION

•BD BOARD IC101 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP)

Pin No.

Pin Name

I/O

 

Description

 

 

 

 

 

 

1

 

I

I

I-V converted RF signal I input from the optical pick-up block detector

 

 

 

 

 

 

2

 

J

I

I-V converted RF signal J input from the optical pick-up block detector

 

 

 

 

 

 

3

 

VC

O

Middle point voltage (+1.65V) generation output terminal

 

 

 

 

 

 

4 to 9

 

A to F

I

Signal input from the optical pick-up detector

 

 

 

 

 

 

10

 

PD

I

Light amount monitor input from the optical pick-up block laser diode

11

 

APC

O

Laser amplifier output terminal to the automatic power control circuit

12

 

APCREF

I

Reference voltage input terminal for setting laser power

13

 

GND

—

Ground terminal

 

 

 

 

 

 

 

14

 

TEMPI

I

Connected to the temperature sensor

 

 

 

 

 

 

15

 

TEMPR

O

Output terminal for a temperature sensor reference voltage

 

 

 

 

 

 

16

 

SWDT

I

Writing serial data input from the CXD2656R (IC121)

 

 

 

 

 

 

17

 

SCLK

I

Serial data transfer clock signal input from the CXD2656R (IC121)

 

 

 

 

 

 

18

 

XLAT

I

Serial data latch pulse signal input from the CXD2656R (IC121)

 

 

 

 

 

 

19

 

XSTBY

I

Standby signal input terminal “L”: standby (fixed at “H” in this set)

 

 

 

 

 

 

20

 

F0CNT

I

Center frequency control voltage input terminal of internal circuit (BPF22, BPF3T, EQ) input

 

from the CXD2656R (IC121)

 

 

 

 

 

 

 

 

 

 

 

 

21

 

VREF

O

Reference voltage output terminal Not used (open)

 

 

 

 

 

22

 

EQADJ

I

Center frequency setting terminal for the internal circuit (EQ)

 

 

 

 

 

23

 

3TADJ

I

Center frequency setting terminal for the internal circuit (BPF3T)

24

 

VCC

—

Power supply terminal (+3.3V)

 

25

 

WBLADJ

I

Center frequency setting terminal for the internal circuit (BPF22)

 

 

 

 

 

26

 

TE

O

Tracking error signal output to the CXD2656R (IC121)

 

 

 

 

 

27

 

CSLED

I

Connected to the external capacitor for low-pass filter of the sled error signal

 

 

 

 

 

28

 

SE

O

Sled error signal output to the CXD2656R (IC121)

 

 

 

 

 

 

29

 

ADFM

O

FM signal output of the ADIP

 

30

 

ADIN

I

Receives a ADIP FM signal in AC coupling

31

 

ADAGC

I

Connected to the external capacitor for ADIP AGC

 

 

 

 

 

32

 

ADFG

O

ADIP duplex signal (22.05 kHz ± 1 kHz) output to the CXD2656R (IC121)

 

 

 

 

 

33

 

AUX

O

Auxiliary signal (I3 signal/temperature signal) output to the CXD2656R (IC121)

 

 

 

 

 

34

 

FE

O

Focus error signal output to the CXD2656R (IC121)

 

 

 

 

 

35

 

ABCD

O

Light amount signal (ABCD) output to the CXD2656R (IC121)

36

 

BOTM

O

Light amount signal (RF/ABCD) bottom hold output to the CXD2656R (IC121)

37

 

PEAK

O

Light amount signal (RF/ABCD) peak hold output to the CXD2656R (IC121)

 

 

 

 

 

38

 

RF

O

Playback EFM RF signal output to the CXD2656R (IC121)

 

 

 

 

 

39

 

RFAGC

I

Connected to the external capacitor for RF auto gain control circuit

 

 

 

 

 

40

 

AGCI

I

Receives a RF signal in AC coupling

 

 

 

 

 

 

41

 

COMPO

O

User comparator output terminal

Not used (open)

42

 

COMPP

I

User comparator input terminal

Not used (fixed at “L”)

43

 

ADDC

I

Connected to the external capacitor for cutting the low band of the ADIP amplifier

 

 

 

 

 

44

 

OPO

O

User operational amplifier output terminal Not used (open)

45

 

OPN

I

User operational amplifier inversion input terminal Not used (fixed at “L”)

 

 

 

 

 

 

46

 

RFO

O

RF signal output terminal

 

 

 

 

 

 

47

 

MORFI

I

Receives a MO RF signal in AC coupling

48

 

MORFO

O

MO RF signal output terminal

 

– 58 –

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Contents MDM-5D SpecificationsMDS-JE520 MBU-5DSELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Diagrams Table of ContentsSection Servicing Notes Flexible Circuit Board Repairing JIG for Checking BD Board Waveform IOPRecord Procedure Checks Prior to Parts Replacement and Adjustments Criteria for Determination Measure if unsatisfactoryRetry Cause Display Mode ProcedureHexadecimal nBinary Conversion Table Location of Controls Section GeneralFront Panel Rear Panel Page Case Section DisassemblyFront Panel Section Main Board Mechanism Deck Section MDM-5DSlider CAM Base Unit MBU-5D, BD BoardSW BOARD, Loading Motor M103 Setting the Test Mode Section Test ModePrecautions for USE of Test Mode Releasing the Test ModeSelecting the Test Mode Display Contents Mark GroupMID Operating the Continuous Playback ModeNon-Volatile Memory Mode EEP Mode OUTTest Mode Displays Functions of Other ButtonsMeanings of Other Displays Section Electrical Adjustments Parts Replacement and AdjustmentPrecautions for Adjustments Precautions for Checking Laser Diode EmissionPrecautions for USE of Optical PICK-UP KMS-260A Laser power meterCheck Prior to Repairs Temperature Compensation Offset CheckLaser Power Check Traverse CheckFocus Bias Check Play Check MO Error Rate CheckCD Error Rate Check Self-Recording/playback CheckLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjustment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment CD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment Location ∙ Signal Path Section DiagramsBlock Diagram Servo Section MDS-JE630Block Diagram Main Section REC AnalogPlay Analog OUT Circuit Boards Location See page 36 for Circuit Boards Location Printed Wiring Board BD BoardSemiconductor Location MDS-JE630 Schematic Diagram BD Board 2/2 See 43 for Waveforms. See page 56 for IC Block DiagramsWaveforms BD Board Schematic Diagram SW BoardPrinted Wiring Board SW Board Main BoardPrinted Wiring Board Main Board See 36 for Circuit Boards Location Semiconductor LocationSchematic Diagram Main Board 1/2 See page 43 for Waveforms Line with mark !are critical for safety Ref. No Location D757 IC761 IC771 Q757 Q781 Q782 Schematic Diagram Panel Section See page 43 for Waveform IC121 CXD2656R IC Block Diagrams BD Board IC101IC152 BH6511FS-E2 IC321 AK4524 Main Board IC310 M5293L IC431 LA5632IC471 LB1641 IC PIN Function Description Sens XlatSrdt XrstAsyo XrasXWE AsyiSprd SrdrSfdr SpfdCnvss AderByte RSTLdin STBChack LD-LOWClock SET0 SCLSctx Clock SET117 #1 Section Exploded ViewsChassis Section 12 A-4724-696-A Main BOARD, Complete65 A-4724-698-A Display BOARD, Complete 67 A-4724-697-A KEY SW BOARD, Complete226 206 204 Mechanism Section216 207 203 222 223 225 202 201 209 4-988-466-21 Spring ELECTROSTATIC, LeafBase Unit Section MBU-5D Section Electrical Parts List Display Display HP KEY KEY SW KEY SW Main GP1F38R Digital in OPT1 Ground PlateTC74HCU04AP GP1F38R Digital in OPT2Ferrite Bead Inductor Line FilterMain Power SW SW CORD, Connection Audio Accessories & Packing MaterialsMANUAL, Instruction ENGLISH, French
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MDS-JE630 specifications

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