Icom IC-PCR100 Service Manual page 13

4-4-2 OUTPUT EXPANDER IC
(1) IC1
Pin Port
number name
Outputs low-pass filter select signal.
High: When frequencies below 1.8
4 B0C
Outputs bandpass filter select signal.
High: When frequencies from 1.8 to
5 B1C
Outputs bandpass filter select signal.
6 B2C High: When frequencies from 15.0 to
Outputs bandpass filter select signal.
7 B3C High: When frequencies from 30.0 to
Outputs bandpass filter select signal.
High: When frequencies from 700.0
11 B7C
Outputs bandpass filter select signal.
High: When frequencies from 350.0
12 B6C
Outputs bandpass filter select signal.
High: When frequencies from 150.0
13 B5C
Outputs bandpass filter select signal.
High: When frequencies from 50.0 to
14 B4C
(2) IC3
Pin Port
number name
Output 450 kHz IF filter select signals.
SW
signal
4–6 FL1–FL3
FL1
FL2
FL3
Output 10.7 MHz IF filter select signals.
SW
7, 14 FL4, FL5
signal
FL4
FL5
Outputs AM mode select signals.
11 AM5
High: When AM mode is selected.
Outputs FM mode select signals.
12 FM
High: When FM mode is selected.
Outputs WFM mode select signals.
13 WFM
High: When WFM mode is selected.
Description
MHz are displayed.
14.999 MHz are displayed.
29.999 MHz are displayed.
49.999 MHz are displayed.
to 1300.0 MHz are displayed.
to 699.999 MHz are displayed.
to 349.999 MHz are displayed.
149.999 MHz are displayed.
Description
Bandpass Passband
filter width
FI6 6 kHz
FI7 15 kHz
By-pass —
Bandpass Passband
filter width
FI2 50 kHz
FI3 230 kHz
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