Read Sony ICF-CD73 / ICF-CD73V Service Manual online
35
ICF-CD73/CD73V
Pin No.
Pin Name
I/O
Description
76
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
77
LOAD
O
Load control signal output terminal for battery reverse insert check
78
A MUTE
O
Audio muting on/off control signal output terminal “L”: muting on
79
B MUTE
O
Muting signal on/off control signal output terminal “L”: muting on (beep sound on)
80
BATT CHK M
O
Middle voltage (+3V) control signal output terminal for battery check
Click on the first or last page to see other ICF-CD73 / ICF-CD73V service manuals if exist.