Port Allocations - Icom IC-F2000 Service Manual

4-5 PORT ALLOCATIONS

• CPU (IC9)
PIN LINE
NO. NAME
To n e s i g n a l ( C T C S S / D T C S )
1 CDEC
decoding input.
To n e s i g n a l ( C T C S S / D T C S )
2 SENC
encoding output.
Clock frequency shift control.
13 CSFT H= While the frequency oscillation is
shifted.
R e c e i v i n g m o d e ( n a r r ow / w i d e )
switching.
14 NWC
L= While receiving in the narrow
mode.
External PTT input.
15 EPTT
H= An external PTT is pushed.
MIC input control for the VOX mode.
16 AUTX H= While the MIC signal input is
detected.
Outputs beep sounds to the AF AMP
17 BEEP
(IC1).
AF power AMP control.
18 AFON H= A F p o w e r A M P ( I C 5 5 ) i s
activated.
Serial data to the PLL IC (IC15,
19 SCK pin 6) and D/A conver ter (IC10,
pin 8).
Serial data to the PLL IC (IC15,
20 SO pin 5) and D/A conver ter (IC10,
pin 9).
O u t p u t s c l o c k s i g n a l t o t h e
22 ASCL
accelerometer IC (IC23, pin 6).
O u t p u t s s e r i a l d a t a t o t h e
23 ASDA
accelerometer IC (IC23, pin 7).
PLST
24 PLL IC strobe.
(OPV2)
DAST
25 D/A converter (IC10, pin 7) strobe.
(OPV1)
26 ESDA EEPROM (IC13, pin 5) serial data.
27 ESCL EEPROM (IC13, pin 6) serial clock.
RX power supply line control signal
28 R5C to the R5V line regulator (Q16).
L= While receiving.
TX power supply line control signal
29 T5C to the T5V line regulator (Q17).
L= While transmitting.
TX/RX common power supply line
control signal to the S5V regulator
30 S5C
(Q15).
L =While power save mode.
Outputs CTCSS/DTCS select signal
32 DUSE
to the tone.
33, CENC2,
34, CENC1, CTCSS/DTCS signal.
36 CENC0
CBI0,
37– CBI1,
[ROTARY SELECTOR] input.
40 CBI2,
CBI3
Frequency response switching.
41 DUSE
H=DTCS encoding
LED Indicator control signal.
42 RLED L= While receiving a signal, or when
the squelch opens.
LED Indicator control signal.
43 TLED
L= Lights. (While transmitting)
DESCRIPTION I/O
I
O
O
O
I
O
O
O
O
O
I
I
O
O
I/O
I/O
O
O
O
I
O
O
O
O
O
PIN LINE
NO. NAME
47 MGC0*
MIC sensitivity control.
48 MGC1*
49 CLI
Cloning data.
50 CLO
A/D conversion select.
51 ADSW
H= RSSI input L= BATV input.
Noise level detect.
53 NOIS
H= Squelch is closed.
55 RMUT2
RX AF mute switch control.
L= During the squelch is closed.
56 RMUT1
[PTT] input.
57 IPTT
L= Pushed.
Transmission mute.
58 TMUT
L= TX inhibit.
60 LVIN
Lock voltage input.
Transceiver temperature sensing
61 TEMP
voltage.
62 AFVI
[VOL] input.
63 VOXV
Microphone input sensing voltage.
*: MIC setting.
sensitivity
Line name MGC0
H
L
Line state
H
L
4-3
DESCRIPTION I/O
O
I
O
O
I
O
I
O
I
I
I
I
MGC1 MIC sensitivity
H 4 (Maximum)
H 3
L 2
L 1 (Minimum)