Sony MZ-E800, Service Manual

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6-9.

IC  PIN  FUNCTION  DESCRIPTION

•

 IC501   SN761056CDBT (RF AMP, FOCUS/TRACKING ERROR AMP)

Pin No.

Pin Name

I/O

Description

1

TE

O

Tracking error signal output to the CXD2661GA (IC601)

2

REXT

—

Connected to the external resistor for the ADIP amplifier control

3

WPPLPF

—

Connected to the external capacitor for low-pass filter of the TPP/WPP

4

VREF11

O

Reference voltage output terminal (+1.1V)

5

C

I

Signal (C) input from the optical pick-up detector

6

D

I

Signal (D) input from the optical pick-up detector

7

D-C

I

Signal (D) input from the optical pick-up detector (AC input)

8

IY

I

I-V converted RF signal (IY) input from the optical pick-up block detector

9

IX

I

I-V converted RF signal (IX) input from the optical pick-up block detector

10

JX

I

I-V converted RF signal (JX) input from the optical pick-up block detector

11

JY

I

I-V converted RF signal (JY) input from the optical pick-up block detector

12

A

I

Signal (A) input from the optical pick-up detector

13

A-C

I

Signal (A) input from the optical pick-up detector (AC input)

14

B

I

Signal (B) input from the optical pick-up detector

15

TON-C

—

Connected to the external capacitor for the TON hold

16

CIG

—

Connected to the external capacitor for low-pass filter of the NPP divider denominator

17

CDN

—

Connected to the external capacitor for low-pass filter of the CSL divider denominator

18

PD-NI

I

Light amount monitor input terminal (non-invert input)

19

PD-I

I

Light amount monitor input terminal (invert input)

20

PD-O

O

Light amount monitor output terminal

21

ADFG

O

ADIP duplex FM signal (22.05 kHz 

±

 1 kHz) output to the CXD2661GA (IC601)

22

DVDD

—

Power supply terminal (+2.4V) (digital system)

23

SBUS

I/O

Two-way SSB serial data bus 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 CXD2661GA (IC601)

27

DGND

—

Ground terminal (digital system)

28

BOTM

O

Light amount signal (RF/ABCD) bottom hold output to the CXD2661GA (IC601)

29

PEAK

O

Light amount signal (RF/ABCD) peak hold output to the CXD2661GA (IC601)

30

VREF075

—

Connected to the external capacitor for the internal reference voltage

31

VC

O

Middle point voltage (+1.2V) generation output terminal

32

CCSL2

—

Connected to the external capacitor for low-pass filter of the TPP/WPP

33

RF OUT

O

Playback EFM RF signal output to the CXD2661GA (IC601)

34

AGND

—

Ground terminal (analog system)

35

EQ

—

Connected to the external capacitor for the RF equalizer

36

LP

—

Connected to the external capacitor for the RF equalizer

37

PS

—

Connected to the external capacitor for the RF equalizer

38

OFC-2

—

Connected to the external capacitor for the RF AC coupling

39

OFC-1

—

Connected to the external capacitor for the RF AC coupling

40

AVCC

—

Power supply terminal (+2.4V) (analog system)

41

ABCD

O 

Light amount signal (ABCD) output to the CXD2661GA (IC601)

42

FE

O

Focus error signal output to the CXD2661GA (IC601)

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 (not used in this set)