6-27. IC PIN FUNCTIONS

• IC101 DIGITAL SIGNAL PROCESSOR (CXD2587Q) (BD(CD) board)

Pin No.

Pin Name

I/O

Function

1

SQSO

O

Sub-Q 80-bit and PCM peak level data output (CD text data output)

 

 

 

 

2

SQCK

I

Clock input for SQSO read-out

 

 

 

 

3

XRST

I

System reset “L” : reset

 

 

 

 

4

SYSM

I

Muting input “H” : mute

 

 

 

 

5

DATA

I

Serial data input, supplied from CPU

 

 

 

 

6

XLAT

I

Latch input, supplied from CPU

 

 

 

 

7

CLOK

I

Serial data transfer clock input, supplied from CPU

 

 

 

 

8

SENS

O

SENS signal output to CPU

 

 

 

 

9

SCLK

I

SENS serial data read-out clock input

 

 

 

 

10

VDD

Digital power supply

 

 

 

 

11

ATSK

I/O

Input pin for anti-shock (Connected to ground)

 

 

 

 

12

SPOA

I

Microcomputer escape interface input A

 

 

 

 

13

SPOB

I

Microcomputer escape interface input B

 

 

 

 

14

XLON

O

Microcomputer escape interface output

 

 

 

 

15

WFCK

O

WFCK output (Not used)

16

XUGF

O

Not used

 

 

 

 

17

XPCK

O

Not used

 

 

 

 

18

GFS

O

Not used

 

 

 

 

19

C2PO

O

Not used

 

 

 

 

20

SCOR

O

Sub-code sync output

 

 

 

 

21

COUT

I/O

Not used

 

 

 

 

22

MIRR

I/O

Mirror signal input/output (Not used)

 

 

 

 

23

DFCT

I/O

Defect signal input/output (Not used)

 

 

 

 

24

FOK

I/O

Focus OK input/output (Not used)

 

 

 

 

25

LOCK

I/O

Not used

 

 

 

 

26

MDP

O

Output to control spindle motor servo

27

SSTP

I

Input signal to detect disc inner most track

 

 

 

 

28

SFDR

O

Sled drive output

29

SRDR

O

Sled drive output

30

TFDR

O

Tracking drive output

31

TRDR

O

Tracking drive output

 

 

 

 

32

FFDR

O

Focus drive output

33

FRDR

O

Focus drive output

 

 

 

 

34

VSS

Digital ground

 

 

 

 

35

TEST

I

TEST pin connected normally to ground

 

 

 

 

36

TES1

I

TEST pin connected normally to ground

 

 

 

 

37

XTSL

I

X'tal selection input (Connected to ground)

 

 

 

 

38

VC

I

Center voltage input pin

 

 

 

 

39

FE

I

Focus error signal input

40

SE

I

Sled error signal input

• Abbreviation

GFS : Guarded Frame Sync

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Image 69
Sony HCD-MD373 service manual IC PIN Functions, IC101 Digital Signal Processor CXD2587Q Bdcd board

HCD-MD373 specifications

The Sony HCD-MD373 is a compact mini audio system that offers an impressive blend of sound quality, versatility, and advanced technology, making it an ideal choice for audio enthusiasts and casual listeners alike. One of the standout features of the HCD-MD373 is its MiniDisc recorder/player, a legacy technology that allows users to record high-quality audio onto MiniDiscs, providing an alternative to traditional CDs and cassettes. This feature is particularly appealing for those looking to capture live music or create personalized playlists.

Another notable aspect of the HCD-MD373 is its integrated CD player, which supports a variety of formats including CD, CD-R, and CD-RW. This versatility means that users can enjoy their favorite albums without the hassle of switching devices. The audio system also includes a built-in AM/FM tuner, enabling users to easily tune into their favorite radio stations and enjoy live broadcasts.

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