MDS-PC2

6-13. SCHEMATIC DIAGRAM – BD SWITCH SECTION –

6-15. IC BLOCK DIAGRAM

• BD section

 

 

IC101 CXA2523AR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAIN BOARD

 

 

MORFO

MORFI

RFO

OPN

 

OPO

 

ADDC

COMPP

COMPO

AGCI

RFAGC

 

RF

PEAK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1/2)

 

 

48

47

46

45

 

44

 

43

42

41

40

39

 

38

37

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USROP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

RF AGC

 

 

EQ

 

 

(Page 37)

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RFA1

 

 

 

 

 

 

 

USRC

 

DET

 

EQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ –

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RFA2

 

 

 

 

BPF3T

 

 

 

 

 

 

 

I

1

 

 

 

 

 

 

 

PEAK3T

 

 

 

 

 

 

1

 

HLPT

–1

 

 

3T

 

 

 

 

 

 

 

 

 

 

 

 

 

P-P

 

 

 

 

 

 

 

 

 

2

 

 

–2

 

 

 

 

 

 

 

 

 

 

J

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFST

 

PTGR

 

3T

 

WBL

TEMP

 

 

 

 

 

 

 

 

 

 

 

 

 

PEAK

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–2

 

 

 

 

 

 

 

 

 

 

 

 

CVB

 

 

 

 

 

 

BOTTOM

 

 

 

36

BOTM

 

 

+

2

 

 

–1

 

 

 

 

 

 

 

VC

3

 

 

GRV

 

 

 

 

PBH

 

 

 

 

 

GRVA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WBL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

ABCD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

+

 

 

 

 

 

 

 

 

 

34

FE

6-14. PRINTED WIRING BOARD – BD SWITCH SECTION –

A

4

 

 

 

 

 

 

 

 

 

 

 

 

33

AUX

 

 

 

+

 

 

 

 

 

 

 

 

 

 

IVR

AA

 

 

+

 

 

 

 

 

 

 

BPFC

 

 

• See page 30 for Circuit Boards Location.

 

 

 

+

ABCDA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

ADFG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

5

+

 

 

 

 

 

 

 

 

 

 

 

 

 

31

ADAGC

 

 

IVR

BB

 

 

+

 

 

 

 

 

 

 

 

 

 

 

MAIN BOARD

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

30

ADIN

 

 

 

 

 

 

 

FEA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

6

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Page 39)

 

IVR

CC

 

 

 

 

 

 

 

 

 

DET

 

 

 

 

 

 

 

 

 

 

 

 

 

BPF22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WBL

 

 

 

29 ADFM

 

 

 

 

 

 

 

+

 

ATA

 

AGC

 

 

 

 

D

7

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

IVR

DD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WBL

 

 

–1

 

 

TG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SE

 

 

 

 

 

 

 

 

 

 

 

PTGR

 

–2

 

 

28

 

E

8

+

 

 

 

 

 

 

 

 

SEA

 

 

 

 

+

 

EE'

 

 

 

 

 

 

 

 

 

IVR

EE

 

 

 

+

 

 

 

 

 

 

27

CSLED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EFB

 

+

TESW

 

 

–1

 

 

TG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–2

 

 

26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

9

+

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IVR

FF

 

 

 

 

 

 

 

WBL

 

 

 

 

 

 

 

 

 

FF'

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3T

 

VI CONV

25

WBLADJ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GSW IV

 

 

FBAL

 

 

 

 

 

 

 

EQ

 

 

 

 

 

 

PD

10

 

 

 

 

AUXSW

COMMAND

 

BGR

 

 

 

 

 

 

 

+ –

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ –

 

 

 

SCRI - PARA

 

VREF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

APC

11

 

 

 

 

 

 

DECODE

 

 

 

 

 

 

 

 

APCREF

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

14

 

 

15

 

16

17

18

19

20

21

22

23

24

 

 

 

 

GND

TEMPI

 

 

TEMPR

 

SWDT

SCLK

XLAT

XSTBY

F0CNT

VREF

EQADJ

3TADJ

VCC

 

44 44

Page 44
Image 44
Sony MDS-PC2 service manual Schematic Diagram BD Switch Section IC Block Diagram, Printed Wiring Board BD Switch Section

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.