Sony MDS-PC2 IC PIN Functions, IC101 RF Amplifier CXA2523AR BD board, Pin No Pin Name Function

Page 47

6-16. IC PIN FUNCTIONS

• IC101 RF Amplifier (CXA2523AR) (BD board)

Pin No.

Pin Name

I/O

 

Function

 

 

 

 

1

I

I

I-V converted RF signal I input

 

 

 

 

2

J

I

I-V converted RF signal J input

 

 

 

 

3

VC

O

Middle point voltage (+1.5V) generation output

 

 

 

 

4 to 9

A to F

I

Signal input from the optical pick-up detector

 

 

 

 

 

10

PD

I

Light amount monitor input

 

 

 

 

 

 

11

APC

O

Laser APC output

 

 

 

 

 

12

APCREF

I

Reference voltage input for setting laser power

 

 

 

 

 

13

GND

—

Ground

 

 

 

 

 

14

TEMPI

I

Temperature sensor connection

 

 

 

 

15

TEMPR

O

Reference voltage output for the temperature sensor

 

 

 

 

16

SWDT

I

Serial data input from the CXD2650R or CXD2652AR

 

 

 

 

17

SCLK

I

Serial clock input from the CXD2650R or CXD2652AR

 

 

 

 

18

XLAT

I

Latch signal input from the CXD2650R or CXD2652AR “L”: Latch

 

 

 

 

19

XSTBY

I

Stand by signal input “L”: Stand by

 

 

 

 

20

F0CNT

I

Center frequency control voltage input of BPF22, BPF3T, EQ from the CXD2650R or

CXD2652AR

 

 

 

 

 

 

 

 

 

21

VREF

O

Reference voltage output (Not used)

 

 

 

 

22

EQADJ

I/O

Center frequency setting pin for the internal circuit EQ

 

 

 

 

23

3TADJ

I/O

Center frequency setting pin for the internal circuit BPF3T

 

 

 

 

 

24

Vcc

—

+3V power supply

 

 

 

 

 

25

WBLADJ

I/O

Center frequency setting pin for the internal circuit BPF22

 

 

 

 

26

TE

O

Tracking error signal output to the CXD2650R or CXD2652AR

 

 

 

 

27

CSLED

—

External capacitor connection pin for the sled error signal LPF

 

 

 

 

28

SE

O

Sled error signal output to the CXD2650R or CXD2652AR

 

 

 

 

 

29

ADFM

O

FM signal output of ADIP

 

 

 

 

 

 

30

ADIN

I

ADIP signal comparator input

ADFM is connected with AC coupling

 

 

 

 

31

ADAGC

—

External capacitor connection pin for AGC of ADIP

 

 

 

 

32

ADFG

O

ADIP duplex signal output to the CXD2650R or CXD2652AR

 

 

 

 

33

AUX

O

I3 signal/temperature signal output to the CXD2650R or CXD2652AR

(Switching with a serial command)

 

 

 

 

 

 

 

34

FE

O

Focus error signal output to the CXD2650R or CXD2652AR

 

 

 

 

35

ABCD

O

Light amount signal output to the CXD2650R or CXD2652AR

 

 

 

 

36

BOTM

O

RF/ABCD bottom hold signal output to the CXD2650R or CXD2652AR

 

 

 

 

37

PEAK

O

RF/ABCD peak hold signal output to the CXD2650R or CXD2652AR

 

 

 

 

38

RF

O

RF equalizer output to the CXD2650R or CXD2652AR

 

 

 

 

39

RFAGC

—

External capacitor connection pin for the RF AGC circuit

 

 

 

 

 

40

AGCI

I

Input to the RF AGC circuit

The RF amplifier output is input with AC coupling

 

 

 

 

41

COMPO

O

User comparator output (Not used)

 

 

 

 

42

COMPP

I

User comparator input (Fixed at “L”)

43

ADDC

I/O

External capacitor pin for cutting the low band of the ADIP amplifier

44

OPO

O

User operation amplifier output (Not used)

 

 

 

 

45

OPN

I

User operation amplifier inversion input (Fixed at “L”)

 

 

 

 

 

46

RFO

O

RF amplifier output

 

 

 

 

 

47

MORFI

I

Groove RF signal is input with AC coupling

48

MORFO

O

Groove RF signal output

 

• Abbreviation

APC: Auto Power Control

AGC: Auto Gain Control

47

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Contents MDM-5A SpecificationsProgram SELF-DIAGNOSIS FunctionInput Items of Error History Mode Items and Contents Parts No Flexible Circuit Board RepairingExploded Views Table of ContentsDisassembly DiagramsTEO Section Servicing NoteJIG for Checking BD Board Waveform IOPRecord Precedure REC/PLAY Checks Prior to Parts Replacement and AdjustmentsCriteria for Determination Measure if unsatisfactory Power Board Component Side Forced ResetFluorescent Display Tube ALL Lighting and KEY Check Mode Bit Binary Retry Cause Display ModeHigher Bits Lower Bits Hexa Cause of Retry Occurring conditionsHexadecimal Binary Bit When BinaryHigher Bits Lower Bits Hexa Details Front Panel Section GeneralMD Mechanism Section DisassemblyCase and Front Panel Base Unit MBU-5A and BD Board Slider CAMSW Board and Loading Motor M103 Exiting the Test Mode Section Test ModePrecautions for USE of Test Mode Setting the Test ModeGroup Selecting the Test ModeOUT Operating the Continuous Playback ModeNon-Volatile Memory Mode EEP Mode MIDFunctions of Other Buttons Test Mode DisplaysMeanings of Other Displays Parts Replacement and Adjustment Section Electrical AdjustmentsCreating Continuously Recorded Disc Precautions for Checking Laser Diode EmissinonPrecautions for USE of Optical PICK- UP KMS-260A Precautions for AdjustmentsSpecified Value Temperature Compensation Offset CheckLaser Power Check Checks Prior to RepairsEject Play Checking MO Error Rate CheckCD Error Rate Check Focus Bias CheckRecording and Displaying the IOP Information Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Laser Power AdjustmentTraverse Adjustment 6EJECT Focus Bias AdjustmentMO Auto Gain Control Output Level Adjustment Error Rate CheckAuto Gain Control Output Level Adjustment CD Auto Gain Control Output Level AdjustmentBD Board Side B Adjusting Points and Connecting PointsCircuit Boards Location Section DiagramsREC Digital Block Diagram BD SectionMDS-PC2 PB Digital outLD-LOVO Main SectionPanel Section WaveformsSee page 30 for Circuit Boards Location Printed Wiring Board BD SectionSchematic Diagram BD 1/2 Section Schematic Diagram BD 2/2 Section Schematic Diagram Main 1/2 Section Board Schematic Diagram Main 2/2 SectionPanel BD Board Panel Printed Wiring Board Main SectionPower Schematic Diagram Panel Section Main Board Printed Wiring Board Panel SectionSchematic Diagram Power Section Main Board BD Board Printed Wiring Board Power SectionBD section IC101 CXA2523AR Schematic Diagram BD Switch Section IC Block DiagramPrinted Wiring Board BD Switch Section IC152 BH6511FS-E2 IC121 CXD2654RIC441 LB1830M Main section IC301 UDA1341TS/N2Pin No Pin Name Function IC PIN FunctionsIC101 RF Amplifier CXA2523AR BD board MNT3 Sloc MNT0 FOKMNT1 Shck MNT2 XbusyAvdd MvciAsyo AsyiFS4 TfdrFfdr FrdrIC501 System Control M30620MC-406FP Main board SDA OPT SEL Mode SELPB-P REC/PBCabinet Section CORD, Power UKSection Exploded Views 526 A-4680-417-A Holder Complete Assy Mechanism Section MDM-5AInsulator F 509 4-988-466-21 Spring ELECTROSTATIC, LeafMotor ASSY, Sled Base Unit Section MBU-5AHEAD, Over Light Back UP Section Electrical Parts List Main Ferrite Bead CONNECTOR, FFC 15PElect Ground TerminalVibrator PLUG, Connector 6PPIN, Connector 2P Main PanelPanel Power Power SW 928-916-11

MDS-PC2 specifications

The Sony MDS-PC2 is a compact yet powerful digital MiniDisc recorder that was designed to bring studio-quality recording capabilities to the consumer level. Launched in the late 1990s, this device was particularly notable for its versatility and advanced audio technologies, making it a favorite among audiophiles and home studio enthusiasts alike.

One of the standout features of the MDS-PC2 is its ability to record and playback audio with exceptional clarity. It utilizes the MiniDisc format, which employs a magneto-optical technology that allows for higher-quality recordings compared to traditional cassette formats. The MDS-PC2 supports various audio bit rates, including standard Stereo at 292 kbps and long play modes, which double the recording time at the cost of some audio fidelity. This flexibility allows users to tailor their recording settings to their specific needs.

The MDS-PC2 features an intuitive interface, including an easy-to-read LCD display that shows vital information about the track, such as its name, length, and remaining recording time. The device is equipped with multiple input options, including optical and analog connections, facilitating seamless integration into any audio setup. The built-in digital signal processor (DSP) enhances the recording quality by minimizing background noise and distortion, providing a clean and crisp listening experience.

Another notable characteristic is the MDS-PC2's editing capabilities. Users can easily create custom playlists, erase tracks, and rearrange audio sequences with a few simple commands. The unit also supports fade-in and fade-out functionalities, allowing for smooth transitions between tracks. The flexibility in editing makes it a potent tool for podcasters, musicians, and anyone looking to produce high-quality audio content.

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In summary, the Sony MDS-PC2 combines innovative technology with user-friendly features, making it an excellent choice for anyone seeking an efficient and high-quality MiniDisc recorder. Its capability to produce superior audio recordings, coupled with its adaptability and portability, has solidified its place as an essential tool for audio recording and playback in various settings.
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