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Pin No.
Pin Name
I/O
64
TONE DET
I
65
I
TEST
66
I
V1-IN
67
I
V2-DET
68
RESET
I
69 to 75
—
—
76 to 80
O
LCD1 to LCD5
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Tone detection signal input from the CTCSS encoder/decoder (IC109)
Not used (open)
Battery detection signal input terminal
Voltage detection signal input terminal
System reset signal input from the reset signal generator (IC104) "L": reset
"L" is input for several 100 msec after power on, then it changes to "H"
Not used (open)
Segment drive signal output to the liquid crystal display (LCD101)
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Description
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