Read Sony ICF-CD523 Service Manual online
31
ICF-CD523
Pin No.
Pin Name
I/O
Description
70
VSS0
-
Ground terminal
71
VDD0
-
Power supply terminal (+5V)
72
XT2
O
Sub system clock output terminal (32.768 kHz)
73
XT1
I
Sub system clock input terminal (32.768 kHz)
74
IC
-
Internal connection terminal (connected to ground)
75
TRAY OPEN
O
Motor drive signal output to the loading motor drive "H": disc tray out
76
TRAY CLOSE
O
Motor drive signal output to the loading motor drive "H": disc tray in
77 to 80
KR0 to KR4
I
Key return signal input from the key matrix
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