Sony MZ-R700 service manual Section Diagrams, IC PIN Function Description

Pin No.

Pin Name

I/O

Description

1

TE

O

Tracking error signal output to the system controller (IC801)

2

REXT

—

Connect terminal to the external resistor for ADIP amp control

3

WPPLPF

—

Connect terminal to the external capacitor for TPP/WPP low-pass filter

4

VREF

O

Reference voltage output terminal (+1 V)

5

C

I

Signal (C) input from the optical pickup detector

6

D

I

Signal (D) input from the optical pickup detector

7

D-C

I

Signal (D) input from the optical pickup detector (AC input)

8

IY

I

I-V converted RF signal (IY) input from the optical pickup detector

9

IX

I

I-V converted RF signal (IX) input from the optical pickup detector

10

JX

I

I-V converted RF signal (JX) input from the optical pickup detector

11

JY

I

I-V converted RF signal (JY) input from the optical pickup detector

12

A

I

Signal (A) input from the optical pickup detector

13

A-C

I

Signal (A) input from the optical pickup detector (AC input)

14

B

I

Signal (B) input from the optical pickup detector

15

TON-C

—

Connect terminal to the external capacitor for TON hold

16

CIG

—

Connect terminal to the external capacitor for the low-pass filter of NPP divider

denominator

17

CDN

—

Connect terminal to the external capacitor for the low-pass filter of CSL divider

denominator

18

PD-I

I

Light amount monitor input terminal (invert input)

19

PD-NI

I

Light amount monitor input terminal (non-invert input)

20

PD-O

O

Light amount monitor output terminal

21

ADIP

O

ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to the system controller (IC801)

22

DVDD

—

Power supply terminal (+2.3 V) (digital system)

23

SBUS

I/O

SSB serial data input/output with the system controller (IC801)

24

SCK

I

SSB serial clock signal input from the system controller (IC801)

25

XRST

I

Reset signal input from the system controller (IC801) “L”: reset

26

OFTRK

I

Off track signal input from the system controller (IC801)

27

DGND

—

Ground terminal (digital system)

28

BOTM

O

Bottom hold signal output of the light amount signal (RF/ABCD) to the system

controller (IC801)

29

PEAK

O

Peak hold signal output of the light amount signal (RF/ABCD) to the system

controller (IC801)

30

VREF075

—

Connect terminal to the external capacitor for the internal reference voltage

31

VC

O

Middle point voltage (+1.2 V) generation output terminal

32

CCSL2

—

Connect terminal to the external capacitor for TPP/WPP low-pass filter

33

RF OUT

O

Playback EFM RF signal output to the system controller (IC801)

34

AGND

—

Ground terminal (analog system)

35 – 37

EQ, LP, PS

—

Connect terminal to the external capacitor for the RF equalizer

38

AVCC

—

Power supply terminal (analog system) (+2.3 V)

39, 40

OFC-2, OFC-1

—

Connect terminal to the external capacitor for RF AC coupling

41

ABCD

O

Light amount signal (ABCD) output to the system controller (IC801)

42

FE

O

Focus error signal output to the system controller (IC801)

43

S-MON

O

Servo signal monitor output to the system controller (IC801)

44

ADIP-IN

I

ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal