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Pin No.
Pin Name
76
RESET
77
LOAD
78
A MUTE
79
B MUTE
80
BATT CHK M
I/O
System reset signal input from the reset signal generator "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O
Load control signal output terminal for battery reverse insert check
O
Audio muting on/off control signal output terminal "L": muting on
O
Muting signal on/off control signal output terminal "L": muting on (beep sound on)
O
Middle voltage (+3V) control signal output terminal for battery check
ICF-CD73/CD73V
Description
35
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