Icom IC-M700PRO Servise Manual page 12

(MAIN unit; IC132)–Continued
Pin Port
number name
Outputs AF gain control signal to the
37
AFG
control (IC36).
Outputs the "tuner start" pulse to an
39
STAT
optional AT-130E.
Outputs a BEEP signal (1 kHz or
40
BEEP
500 Hz).
Outputs a strobe signal to the main
41
STB1
loop PLL IC (C3005).
Outputs a strobe signal to the refer-
42
STB2
ence loop DSS IC (IC3001).
Outputs a strobe signal to the BFO
48
STB3
PLL IC (IC3002).
Outputs a data signal to PLL and
49
DATA
DDS ICs.
Outputs a clock signal to PLL and
50
CK
DDS ICs.
Outputs an AF mute signal for squelch
51
SQL C function.
High : Squelch closed.
Outputs a "noise blanker" signal.
52
NBS
High : Noise blanker is on
Outputs an AGC -OFF signal.
53
AGCS
High: AGC deactivate.
Outputs an external NBDP equip-
54
NMS ment control signal.
Low: During NBDP data output.
Outputs a strobe signal for an initial
55
P20
matrix.
57–60 P17–P14
Input ports for an initial matrix.
Output band signals for RF LPF and
61–64
PD–PA
BPF selection.
J2B, R3E,
65–67
Outputs mode signals.
H3E
Input port for an optional AT-130E.
68
KEY
Low : During tuning.
69
CW Outputs a mode signal.
Outputs an antenna tuner tuning
70
TUNE control signal for transceiver's power/
mode control.
Outputs a narrow filter selection sig-
nal.
71 FSEL
Low : Optional narrow filter selec-
Outputs a program scan control signal
72
PROG for "AGC fast" and "audio squelch"
deactivation.
Description
tion.
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