Read Sony CDX-A251C Service Manual online
35
CDX-A251C
61
EJECT_OK
I
Eject OK signal input
62
OPEN_REQ
O
Front panel open/close request signal output
63
MECON
O
CD mechanism deck power supply control signal output
64
CDON
O
CD power supply control signal output
65
XUART
I
SONY-BUS/MC-BUS change signal input (Fixed at H: SONY-BUS in this set)
66
ZMUTE
O
Z mute signal output
67
MECON_CHK
I
MECHA +6V power rising detection signal input
68
CDON_CHK
I
SERVO +3.3V power rising detection signal input
69 to 74
NC
O
Not used. (Open)
75
RSTX
I
System reset signal input
76
NC
O
Not used. (Open)
77
X1A
—
Not used. (Open)
78
X0A
—
Not used. (Connect to VSS)
79
VSS
—
Ground
80
X0
I
Main-clock signal input (12 MHz)
81
X1
O
Main-clock signal output (12 MHz)
82
VCC
—
Power supply pin (+3.3 V)
83
XWD
I
Not used. (Open)
84
XINIT3
I
Not used. (Open)
85
NC
O
Not used. (Open)
86
XSJIG
I
Not used. (Open)
87
XINIT0
I
Not used. (Open)
88
XINIT1
I
Not used. (Open)
89
XINIT2
I
Not used. (Open)
90 to 96
NC
O
Not used. (Open)
97
XDES
I
Destination setting pin
98
XLINE
I
Not used. (Open)
99, 100
NC
O
Not used. (Open)
Pin No.
Pin Name
I/O
Pin Description
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