Sony D-E990, Service Manual

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5-6.

IC  PIN  FUNCTION  DESCRIPTION

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 IC801 TMP88CM22F-1A49 (SYSTEM CONTROLLER)

Pin No.

Pin Name

I/O

Description

1

VSS

—

Ground terminal

2

IRRMC

I

Not used (fixed at “L”)

3

FOKI

I

Focus OK signal input from the CXD3027R (IC601)    “L”: NG, “H”: OK

4

AGCCON

O

AGC control pulse signal output terminal

5

XLEDDISP

O

CHG/HOLD LED (D408) control signal output terminal

6

VCC

SWITCHING

O

Control signal output terminal for the switching power supply circuit

7

AMUTE

O

Analog audio muting ON/OFF control signal output terminal    “H”: muting ON

8

VCC2 ON

O

VCC2 voltage control signal output terminal

9

XRST

O

Reset signal output to the headphone amp (IC351) and CXD3027R (IC601)    “L”: reset

10

SCK

O

Serial data transfer clock signal output to the power control (IC401), spindle motor driver
(IC402), and CXD3027R (IC601)

11

SDTI

I

Serial data input from the CXD3027R (IC601)

12

SDTO

O

Serial data output to the power control (IC401), spindle motor driver (IC402), and CXD3027R
(IC601)

13

SLPOUT

O

Wake-up control signal output to the power control (IC401) (for system standby reset)

14

SEL

I

Plug-in detection signal input terminal of LINE OUT (OPTICAL) jack (J301) (A/D input)

15

CHGMNT1

I

Battery charge voltage detection input from the power control (IC401) (A/D input)

16

VCDKEY

I

Key input terminal    Not used (Fixed at “H”)

17

BATMNT

I

Battery voltage detection signal input terminal

18

KEY

I

Key input from the S802, S805 to S809 (

u

, 

.

, 

>

, 

x

, /–) (A/D input)

19

RMKEY

I

Key input from the headphone with remote commander (A/D input)

20

DCINMNT

I

DC input voltage detection input terminal (A/D input)  and DC input jack use/no use detection
input terminal (A/D input)

21

OPEN

I

CD door open/close detection switch (S801) input terminal
The stop status is reset with the falling edge of input signal

22

VREFL

I

Reference voltage input terminal (0V) for A/D converter

23

VREFH

I

Reference voltage input terminal (+2V) for A/D converter

24

VDD

—

Power supply terminal (+2V)

25

SCOR

I

Sub-code sync (S0+S1) detection signal input from the CXD3027R (IC601)

26

GRSCOR

I

Communication clock signal input from the CXD3027R (IC601)

27

FG

I

FG pulse signal input from the spindle motor driver (IC402)

28

BEEP

O

Beep sound signal output to the headphone amplifier (IC351)

29

NC

—

Not used (open)

30

RMSCK

O

Communication clock output to the communication format converter (IC802)

31

RMDATI

I

Communication data bus input of headphone with remote commander from the communication
format converter (IC802)

32

RMDATO

O

Communication data bus output of headphone with remote commander to the communication
format converter (IC802)

33

RMRW

O

Read/write control signal output of headphone with remote commander to the communication
format converter (IC802)     “L”: read mode, “H”: write mode

34

RMLAT

O

Serial data latch pulse signal output of headphone with remote commander to the communication
format converter (IC802)

35

WFCKI

I

Demodulation signal input from the CXD3027R (IC601)

36

SL16M

I

E990/EJ915: E13, E33, Hong Kong, Korean, Australian, and Chinese models: Not used (open)
EJ915: US, Canadian, AEP, UK, French, German, and East European models: Not used (pull up)

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 Abbreviation    E13: 220 to 230V AC area in E model, E33: 100 to 240V AC area in E model