Sony ST-S9, Service Manual

ST-S9

20

20

5-10.

IC  PIN  FUNCTION  DESCRIPTION

•

 MAIN BOARD  IC501 M30622MGA-A77FP (SYSTEM CONTROLLER)

Pin No.

Pin Name

I/O

Description

1

AMP-DATA

O

Serial data output to the M61512FP (IC607)

2

AMP-CLK

O

Serial data transfer clock signal output to the M61512FP (IC607)

3

AMP-LAT

O

Serial data latch pulse signal output to the M61512FP (IC607)

4

SIRCS

I

Remote control signal input from the remote control receiver (IC101)

5

DIG-TX

O

Serial data output to the CXD9617R (IC601), digital audio interface receiver (IC604) and digital 
filter (IC606)

6

DSP-RX

I

Serial data input from the digital audio interface receiver (IC604)

7

DIG-CLK

O

Serial data transfer clock signal output to the CXD9617R (IC601), digital audio interface receiver 
(IC604) and digital filter (IC606)

8

GND

—

Ground terminal

9

CNVSS

—

Not used

10

XCIN

I

Sub system clock input terminal (32.768 kHz)

11

XCOUT

O

Sub system clock output terminal (32.768 kHz)

12

RESET

I

System reset signal input from the reset signal generator (IC551)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

13

XOUT

O

Main system clock output terminal (16 MHz)

14

VSS

—

Ground terminal

15

XIN

I

Main system clock input terminal (16 MHz)

16

VCC

—

Power supply terminal (+5V)

17

NMI

I

Non-maskable interrupt input terminal    Fixed at “H” in this set

18

RDS-INT

I

Serial data transfer clock signal input from the RDS decoder on the FM/AM tuner unit
(Used for the AEP and UK models)

19

—

—

Not used (open)

20

RDS-DATA

I

Serial data input from the RDS decoder on the FM/AM tuner unit
(Used for the AEP and UK models)

21

ST-MUTE

O

Tuner muting on/off control signal output to the FM/AM tuner unit    “L”: muting on

22

ST-CE

O

Chip enable signal output to the FM/AM tuner unit

23

ST-DOUT

O

Serial data output to the FM/AM tuner unit

24

—

—

Not used (open)

25

ST-DIN

I

Serial data input from the FM/AM tuner unit

26

—

—

Not used (open)

27

ST-CLK

O

Serial data transfer clock signal output to the FM/AM tuner unit

28

—

—

Not used (open)

29

IIC CLK

I/O

Communication data reading clock signal input or transfer clock signal output with the display 
controller (IC601) and DVP-S9

30

IIC DATA

I/O

Communication data bus with the display controller (IC601) and DVP-S9

31 to 34

NO-USE

—

Not used

35 to 40

—

—

Not used (open)

41

M-RESET

O

Reset signal output to the display controller (IC601)    “L”: reset

42 to 50

—

—

Not used (open)

51

NO-USE

—

Not used

52 to 57

—

—

Not used (open)

58

EXP-IN DATA

I

Serial data input from the I/O expander in the TA-S9D

59

EXP-OUT DATA

O

Serial data output to the I/O expander in the TA-S9D

60

EXP-LAT

O

Serial data latch pulse signal output to the I/O expander in the TA-S9D

61

EXP-CLK

O

Serial data transfer clock signal output to the I/O expander in the TA-S9D

Pin No.

Pin Name

I/O

Description

62

VCC

—

Power supply terminal (+5V)

63

SOFT-TEST

O

Soft test output terminal    Not used (open)

64

VSS

—

Ground terminal

65 to 70

—

—

Not used (open)

71

LINE-MUTE

O

Audio line muting on/off control signal output to the audio line circuit    “L”: muting on

72

—

—

Not used (open)

73

DISPLAY KEY

I

DISPLAY switch (S601) input terminal

74

POWER KEY

I

Power on/off switch in the TA-S9D input terminal

75

DIR-UNLOCK

I

PLL lock error and data error flag input from the digital audio interface receiver (IC604)

76

DIR-CS

O

Chip enable signal output to the digital audio interface receiver (IC604)

77

DIR-XSTATE

I

Source clock switching monitor input from the digital audio interface receiver (IC604)

78

DIR-RX

I

Read data input from the digital audio interface receiver (IC604)

79

CODEC-SMUTE

O

Soft muting on/off control signal output to the A/D, D/A converter (IC605)    “L”: muting on

80

DSP-ACK

I

Acknowledge signal input from the CXD9617R (IC601)

81

DSP-CS

O

Chip select signal output to the CXD9617R (IC601)

82

DSP-DECODE

I

Decode signal input from the CXD9617R (IC601)

83 to 86

—

—

Not used (open)

87

STEREO

I

FM stereo detection signal input from the FM/AM tuner unit    “L”: stereo

88

TUNED

I

Tuning detection signal input from the FM/AM tuner unit    “L”: tuned

89 to 91

—

—

Not used (open)

92

MODEL-IN

I

Model setting terminal

93

SPEC-IN

I

Specification setting terminal

94

—

—

Not used (open)

95

V-MUTE

O

Video muting on/off control signal output terminal    “L”: muting on    Not used (open)

96

AVSS

—

Ground terminal

97

—

—

Not used (open)

98

VREF

I

Reference voltage (+5V) input terminal

99

AVCC

—

Power supply terminal (+5V)

100

AC-CUT

I

AC cut on/off detection signal input from the reset signal generator (IC551)
“L”: AC cut on, “H”: AC cut off or checked

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TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

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