Sony MDS-PC2 service manual Main section IC301 UDA1341TS/N2, IC441 LB1830M

Page 46

• MAIN section

 

IC301 UDA1341TS/N2

 

 

 

 

 

 

 

VDD(AD)

VSS(AD)

 

 

VADCP

VADCN

 

 

 

 

3

1

 

 

7

5

 

 

VINL2

6

 

 

PGA

 

PGA

 

8

VINR2

VINL1

2

0DB/6DB

ADC2L

ADC2R

0DB/6DB

4

VINR1

 

 

SWITCH

 

 

SWITCH

 

 

 

 

 

 

ADC1L

 

ADC1R

 

 

 

VDDD 10

 

 

DIGITAL AGC

 

 

22

AGCSTAT

 

 

 

 

 

 

VSSD 11

 

 

DIGITAL MIXER

 

 

 

 

 

 

 

 

DECIMATION FILTER

 

 

9

OVERFLOW

DATAO 18

 

 

DIGITAL

 

L3-BUS

 

14 L3CLOCK

BCK 16

 

 

 

 

 

 

 

 

13 L3MODE

 

 

 

 

 

 

WS 17

 

 

INTERFACE

 

INTERFACE

 

 

 

 

 

15

L3DATA

 

 

 

 

 

 

DATAI 19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSP FEATURES

 

 

12 SYSCLK

QMUTE 23

 

 

INTERPOLATION FILTER

PRAK

 

 

 

 

 

 

 

 

 

 

 

 

 

NOISE SHAPER

DETECTOR

 

20

TEST1

VREF 28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

TEST2

VOUTL

26

 

DAC

 

 

DAC

 

24

VOUTR

 

 

 

25

 

 

27

 

 

 

 

 

 

VDD(DAC)

 

 

VSS(DAC)

 

 

 

 

IC441 LB1830M

 

 

 

 

 

IN2

IN1

VM

 

VREF

VCONT

10

9

8

 

7

6

 

 

 

VREF

 

 

LOGIC

 

 

 

 

PREDRIVER

 

 

 

 

1

2

 

3

4

5

VCC

OUT2

 

GND

OUT1

VS

46

Image 46
Contents Specifications MDM-5AInput SELF-DIAGNOSIS FunctionProgram Items of Error History Mode Items and Contents Flexible Circuit Board Repairing Parts NoDiagrams Table of ContentsDisassembly Exploded ViewsIOP Section Servicing NoteJIG for Checking BD Board Waveform TEORecord Precedure Criteria for Determination Measure if unsatisfactory Checks Prior to Parts Replacement and AdjustmentsREC/PLAY Fluorescent Display Tube ALL Lighting and KEY Check Mode Forced ResetPower Board Component Side Cause of Retry Occurring conditions Retry Cause Display ModeHigher Bits Lower Bits Hexa Bit BinaryHigher Bits Lower Bits Hexa Details Bit When BinaryHexadecimal Binary Section General Front PanelCase and Front Panel Section DisassemblyMD Mechanism Slider CAM Base Unit MBU-5A and BD BoardSW Board and Loading Motor M103 Setting the Test Mode Section Test ModePrecautions for USE of Test Mode Exiting the Test ModeSelecting the Test Mode 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 EmissinonPrecautions for USE of Optical PICK- UP KMS-260A Creating Continuously Recorded DiscChecks Prior to Repairs Temperature Compensation Offset CheckLaser Power Check Specified ValueFocus Bias Check Play Checking MO Error Rate CheckCD Error Rate Check EjectLaser Power Adjustment Initial Setting of Adjustment ValueTemperature Compensation Offset Adjutment Recording and Displaying the IOP InformationTraverse Adjustment Focus Bias Adjustment 6EJECTCD 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 BD Board Side BSection Diagrams Circuit Boards LocationPB Digital out Block Diagram BD SectionMDS-PC2 REC DigitalMain Section LD-LOVOWaveforms Panel SectionPrinted Wiring Board BD Section See page 30 for Circuit Boards LocationSchematic Diagram BD 1/2 Section Schematic Diagram BD 2/2 Section Schematic Diagram Main 1/2 Section Panel Schematic Diagram Main 2/2 SectionBoard Power Printed Wiring Board Main SectionBD Board Panel Schematic Diagram Panel Section Printed Wiring Board Panel Section Main BoardSchematic Diagram Power Section Printed Wiring Board Power Section Main Board BD BoardPrinted Wiring Board BD Switch Section Schematic Diagram BD Switch Section IC Block DiagramBD section IC101 CXA2523AR IC121 CXD2654R IC152 BH6511FS-E2Main section IC301 UDA1341TS/N2 IC441 LB1830MIC101 RF Amplifier CXA2523AR BD board IC PIN FunctionsPin No Pin Name Function MNT2 Xbusy MNT0 FOKMNT1 Shck MNT3 SlocAsyi MvciAsyo AvddFrdr TfdrFfdr FS4IC501 System Control M30620MC-406FP Main board REC/PB OPT SEL Mode SELPB-P SDASection Exploded Views CORD, Power UKCabinet Section 509 4-988-466-21 Spring ELECTROSTATIC, Leaf Mechanism Section MDM-5AInsulator F 526 A-4680-417-A Holder Complete AssyHEAD, Over Light Base Unit Section MBU-5AMotor ASSY, Sled Back UP Section Electrical Parts List Main Ground Terminal CONNECTOR, FFC 15PElect Ferrite BeadMain Panel PLUG, Connector 6PPIN, Connector 2P VibratorPanel 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.

Portability is another key aspect of the Sony MDS-PC2. Its lightweight design and durable build make it easy to transport, catering to users who are frequently on the move. Battery operation options provide additional convenience for those who wish to use the recorder away from a power source.

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.