Sony 4-216-840-0 service manual Section Diagrams, IC PIN Function Description

Page 30

SECTION 6

DIAGRAMS

6-1. 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 CXD2654R (IC121)

 

 

 

 

 

 

17

 

SCLK

I

Serial data transfer clock signal input from the CXD2654R (IC121)

 

 

 

 

 

 

18

 

XLAT

I

Serial data latch pulse signal input from the CXD2654R (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 CXD2654R (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 CXD2654R (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 CXD2654R (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 CXD2654R (IC121)

 

 

 

 

 

33

 

AUX

O

Auxiliary signal (I3 signal/temperature signal) output to the CXD2654R (IC121)

 

 

 

 

 

34

 

FE

O

Focus error signal output to the CXD2654R (IC121)

 

 

 

 

 

35

 

ABCD

O

Light amount signal (ABCD) output to the CXD2654R (IC121)

 

 

 

 

 

36

 

BOTM

O

Light amount signal (RF/ABCD) bottom hold output to the CXD2654R (IC121)

 

 

 

 

 

37

 

PEAK

O

Light amount signal (RF/ABCD) peak hold output to the CXD2654R (IC121)

 

 

 

 

 

38

 

RF

O

Playback EFM RF signal output to the CXD2654R (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

 

 

 

 

 

 

 

 

– 30 –

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Page 29 Page 31
Contents Specifications MDS-JE520MDM-5A SELF-DIAGNOSIS Function Items of Error History Mode Items and Contents Table of Contents DiagramsSection Servicing Notes Flexible Circuit Board Repairing VarningJIG for Checking BD Board Waveform IOPRecord Precedure Checks Prior to Parts Replacement and Adjustments Criteria for Determination Measure if unsatisfactoryRetry Cause Display Mode PrecedureHexadecimal nBinary Conversion Table Section General Section Disassembly CoverFront Panel Section Main Board Mechanism Deck Section MDM-5ASlider CAM Base Unit MBU-5A, BD BoardSW BOARD, Loading Motor M103 Setting the Test Mode Section Test ModePrecautions for USE of Test Mode Exiting 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 Checking 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 ING CONTINUOUSLY-RECORDED DiscCD Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjustment Location Section Diagrams IC PIN Function DescriptionSrdt MNT2 XbusyXlat SensAsyo XrasXWE AsyiSfdr FS4Srdr SprdCnvss AderByte RSTLdin STBChack LD-LOWPlay Analog OUT Block Diagram MD Servo Section∙ Signal Path REC Analog REC DigitalBlock Diagram Main Section REC AnalogCircuit Boards Location CNDSemiconductor Location MDS-M100 Schematic Diagram BD Board 2/2 See 65 for Waveforms. See page 51 for IC Block DiagramSchematic Diagram SW Board Printed Wiring Board SW BoardIC406 M62016L IC421 M5293L IC121 CXD2654RMain Board IC301 ΜDA1341TS/N2 IC152 BH6511FS-E2MDS-M100 Semiconductor Location Schematic Diagram Main Board 1/2 See page 65 for Waveform MDS-M100 Ref. No Location D741 D742 IC761 Q741 Q742 Q767 MDS-M100 Section Exploded ViewsCover Section Chassis Section AEP, SP209 4-988-466-11 Spring ELECTROSTATIC, Leaf Mechanism Section MDM-5A201 206 204 205 221 A-4680-409-A Holder Complete AssyBase Unit Section MBU-5A Section Electrical Parts List AC Select BDCXA2523AR Short SwitchIC/TRANSISTOR Transistor FMW1Connector MainCeramic Inductor CarbonExcept US, CND Main Panel Panel SW Trans Sony Corporation
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