Sony MZ-R90/R91 Manual De Usuario

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Pin No.

Pin Name

I/O

Pin Description

1

SYNC REC

I

SYNCHRO REC switch (S801) input terminal     “L”: off, “H”: on

2

OFTRK

I

Off track signal input from the CXD2660GA (IC502)

3

PROTECT

I

Rec-proof claw detect input from the protect detect switch (S806)

“L”: recording possible, “H”: protect

4

PAUSE KEY

I

Set pause key input terminal

5

TX

O

Recording data output enable signal output to the CXD2660GA (IC502)

Writing data transmission timing output

6

SENSE

I

Internal status (SENSE) input from the CXD2660GA (IC502)

7

WRPWR

O

Laser power select signal output to the CXD2660GA (IC502)

“L”: playback mode, “H”: recording mode

8

XLAT

O

Serial data latch pulse output to the CXD2660GA (IC502)

9

XCS DSP

O

Chip select signal output to the CXD2660GA (IC502)

10

CS RTC

O

Not used (open)

11

SI0

I

Serial data input from the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM

(IC802) and switch & liquid crystal display module unit

12

SO0

O

Serial data output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM

(IC802) and switch & liquid crystal display module unit

13

SCK0

O

Serial clock signal output to the A/D, D/A converter (IC301), CXD2660GA (IC502),

EEPROM (IC802) and switch & liquid crystal display module unit

14

XGUM ON

I

Not used (open)

15

VSS

—

Ground terminal

16

VDD

—

Power supply terminal (+2.4 V)

17

XOUT

O

Not used (open)

18

BEEP

O

Beep sound control signal input terminal

19

RMC DTCK

I/O

TSB serial communication data input/output terminal for remote commander with headphone

20

XCS LCD

O

Chip select signal output to the liquid crystal display

21

LCD STB

O

Strobe signal output to the liquid crystal display

22

LCD RST

O

Reset control signal output to the liquid crystal display

23

XHP STBY

O

Standby on/off control signal output to the line/headphone amplifier (IC303)

“L”: standby mode, “H”: amplifier on

24

CLV U

O

Spindle servo (U) drive signal input from the MPC17A56FTA (IC601)

25

CLV V

O

Spindle servo (V) drive signal input from the MPC17A56FTA (IC601)

26

CLV W

O

Spindle servo (W) drive signal input from the MPC17A56FTA (IC601)

27

MODE1

O

Power supply control signal output for over write head drive to the MPC18A21MTB (IC603)

28

MODE2

O

Power supply control signal output for over write head drive to the MPC18A21MTB (IC603)

29

MODE3

O

Power supply control signal output for over write head drive to the MPC18A21MTB (IC603)

30

HD CON 1

O

Over write head control signal output to the MPC18A21MTB (IC603)

31

HD CON 2

O

Over write head control signal output to the MPC18A21MTB (IC603)

32

XREC MODE

O

Not used (open)

33

LD ON

O

Laser diode on/off control signal output terminal    “L”: laser off, “H”: laser on    Not used (open)

34

TSB SLV ON

I

TSB slave detect signal input terminal

35

SLD MON 1

I

Sled servo timing signal input from the MPC17A56FT (IC601)

36

PD S0

O

PD IC mode switching signal output to the optical pick-up block

37

REG CTL CLK

O

Synchronizing external clock signal output terminal     Not used (open)

38

PD S1

O

PD IC mode switching signal output to the optical pick-up block

39

FFCLR

O

Input latch output for starting signal to the MPC18A31FTA (IC901)

40

SLEEP

O

System sleep control signal output to the MPC18A31FTA (IC901)     “H”: sleep on

41

TSB EDGE

I

TSB slave edge detect signal input terminal

42

GND SW

O

Ground line switching signal output terminal