Sony STR-DE845 service manual Sdata

Pin No.

Pin Name

I/O

Description

56

SDATA

O

Tuner data output to the FM/AM tuner unit (TM301)

57

SCLK

O

Tuner clock signal output to the FM/AM tuner unit (TM301)

58

DATA IN

I

PLL data input from the FM/AM tuner unit (TM301)

59

AUSTOP

I

Tuned display detection signal input from the FM/AM tuner unit (TM301)

60

STEREO

I

Stereo detection signal input from the FM/AM tuner unit (TM301)

61, 62

NC

I

Not used (fixed at “L”)

63

VSS

—

Ground terminal

64

NC

I

Not used (fixed at “L”)

65

TH

I

Protect signal input terminal (fixed at “L” in this set)

66

PROTEC

I

Over load detect signal input from the protect circuit

“L”: protect detect

67

STOP

I

AC power check signal input from the power control (IC1206)

68 to 71

NC

I

Not used (fixed at “L”)

72

VIDEO (SW4)

O

Video select (SW4) signal output to the video select switch (IC251, 252)

73

X1A

—

Not used (open)

74

X0A

—

Not used (open)

75

VIDEO (SW3)

O

Video select (SW3) signal output to the video select switch (IC251, 252)

76

VIDEO (SW2)

O

Video select (SW2) signal output to the video select switch (IC251, 252)

77

VIDEO (SW1)

O

Video select (SW1) signal output to the video select switch (IC251, 252)

78

HI-FI/QS

I

Model check detection input terminal

“L”: HI-FI

“H”: QS

79

TAPE NO/YES

I

Tape no/yes signal detection input terminal

“L”: tape yes

“H”: tape no

80

VIDEO 3 NO/YES

I

VIDEO 3 no/yes signal detection input terminal

“L”: VIDEO 3 yes

“H”: VIDEO 3 no

81

DTS NO/YES

I

DTS no/yes signal detection input terminal

“L”: DTS yes

“H”: DTS no

82

ACMUTE

O

Muting control signal output to the power amp (IC501, 601, 701)

83

96K NO/YES

I

96K no/yes signal detection input terminal

Not used

84

TMUTE

O

Tuner muting control signal output to the FM/AM tuner unit (TM301)

“H”: muting

85

SMUTE

O

Surround muting control signal output to the AF amp (IC1508, 1509, 1510)

86

HSTX

—

Hardware standby terminal (fixed at “H” in this set)

87

MD2

O

MD2 signal output to the display controller (IC102)

88

MD1

O

MD1 signal output terminal (fixed at “H” in this set)

89

MD0

O

MD0 signal output to the display controller (IC102)

90

REST

I

Reset signal input from the display controller (IC102)

91

VSS

—

Ground terminal

92

XO

O

Main system clock output terminal (16MHz)

93

XI

I

Main system clock input terminal (16MHz)

94

VCC

—

Power supply terminal (+5V)

95, 96

PO0, PO1

I

Rewrite terminal for the flash memory

Not used (fixed at “L”)

97

RY-4/8

O

4/8 relay drive signal out put terminal

Not used (open)

98

RY-PRE

O

Pre amp relay drive signal output terminal

“H”: relay on

99

RY-FRONT/A

O

Front speaker A relay drive signal output terminal

“H”: relay on

100

RY-FRONT/B

O

Front speaker B relay drive signal output terminal

“H”: relay on

101

RY-CENTER

O

Center speaker relay drive signal output terminal

“H”: relay on

102

RY-REAR

O

Rear speaker relay drive signal output terminal

“H”: relay on

103

RY-WOOFER

O

Rear woofer relay drive signal output terminal

“H”: relay on

104

RY-HP

O

Headphone relay drive signal output terminal

“H”: relay on

105

RY-POWER

O

Power relay drive signal output terminal

“H”: relay on

106

ANG/DIG

O

Analog/digital select signal output terminal

“L”: analog

“H”: digital

49