CDX-GT50W/GT500/GT500EE/GT550

Pin No.

Pin Name

I/O

 

Pin Description

 

 

 

 

 

 

 

64

CDON

O

Servo power supply control signal output

H: power on

65

XUART

I

Sony-Bus/MC-Bus change signal input

H: Sony-Bus, L: MC-Bus

66

ZMUTE

O

Zero detection mute signal output

 

67

MECON CHK

I

MECON rising detection signal input

 

68

CDON CHK

I

CDON rising detection signal input

 

69 to 74

 

NC

—

Not used. (Open)

 

 

75

 

 

 

I

System reset signal input

 

RSTX

 

76

 

NC

—

Not used. (Open)

 

 

77

 

X1A

—

Sub-clock connect pin

Not used in this set. (Open)

78

 

X0A

—

Sub-clock connect pin

Not used in this set. (Connect to Vss.)

79

 

VSS

—

Ground pin

 

 

80

 

X0

I

Main-clock connect pin (12 MHz)

 

81

 

X1

O

Main-clock connect pin (12 MHz)

 

82

 

VCC

—

Power supply pin (+3.3 V)

 

83

 

XWD

I

Not used in this set. (Open)

 

84

XINIT3

I

Not used in this set. (Open)

 

85

 

NC

—

Not used. (Open)

 

 

86

XSJIG

I

Not used in this set. (Open)

 

87 to 89

XINIT0 to 2

I

Not used in this set. (Open)

 

90 to 96

 

NC

—

Not used. (Open)

 

 

97

XDES

I

Mode select pin

 

 

98

XLINE

I

Not used in this set. (Open)

 

99, 100

 

NC

—

Not used. (Open)

 

 

37

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Sony CDX-GT50W, CDX-GT500EE, CDX-GT550 service manual Mecon CHK, Cdon CHK
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