Read Sony CDX-C480 / CDX-C580 Service Manual online
– 25 –
Pin No.
Pin Name
I/O
Pin Description
53
S-METER
I
S-meter voltage detection input
54
VCC
—
Power supply
55
AMP MUTE
O
Power amplifier mute control output
56
AMP ON
O
Power amplifier power control output
57
XMODE
O
Reset signal output for CD-TEXT decoder.
58
VOL SO
O
Electric volume serial data output
59
VOL CKO
O
Electric volume serial clock output
60
AU MUTE
O
Audio mute signal output
61
AF MUTE
O
RDS mute signal output (Not used.)
62
TU MUTE
O
Tuner mute signal output
63
VSS
—
GND
64
ACC IN
I
Accessory power voltage detection input
65
AFSEEK
O
RDS operation control output
66
M SIO
I/O
EEPROM serial data input/output
67
DAVN
I
RDS data input detection input
68
M CK
O
EEPROM serial clock output
69
M CE
O
EEPROM chip enable output
70
RDS SI
O
RDS serial data input
71
RDS CKI
O
RDS serial clock input
72
RC IN1
I
Remote commander shift key input
73
X1A
—
Low frequency oscillator input
74
X0A
—
Low frequency oscillator input
75
SCOR
I
SCOR signal detection input
76
BU IN
I
Backup power supply detection input
77
DQSY
I
CD-TEXT data set complete signal detection input
78
CD SENCE
I
CD SENS signal detection input
79
KEY ACK
I
Key input acknowledge
80
TEL MUTE
I
Telephone mute detection input
81
ST IN/MONO
I
Tuner stereo signal detection input
82
SEEKOUT
O
SEEK OUT output
83
SD IN
I
Signal detection input
84
NC
—
Not used. (Connect to GND.)
85
PLL CE
O
PLL chip enable output
86
H
I
Hardware standby input
87
VSS
—
GND
88, 89
VCC
—
Power supply
90
RESET
I
Reset input
91
VSS
—
GND
92
X0
—
High frequency oscillator input
93
X1
—
High frequency oscillator input
94
VCC
—
Power supply
95
PW SEL
I
Power select initial setting input
96
NIL
—
Not used. (Connect to GND.)
97
AREA1
I
Fixed at “L”.
98
AREA2
I
Fixed at “L”.
99
AREA3
I
US, Canadian model : Fixed at “L”. E model : Fixed at “H”.
100
BAND (9K 10K)
I
AM/FM frequency select (E model)
101
NIL
—
Not used. (Connect to GND.)
102
PH3
I
Disc insert detection photo sensor input
103
PH2
I
Disc insert detection photo sensor input
104
LCD CE
O
LCD chip enable output
105
NIL
—
Not used. (Connect to GND.)
106
RE0
I
Rotary encoder input
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