Icom IC-FR3000 Service Manual page 15

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Pin Port
number name
Input port for the RV SWR signal from
47 RVSWR
the PA unit.
Input port for the temperature signals
48 TEMP
of PA and REG units.
Input port for the VCO lock voltage to
49 T/RLV
the TX and RX unit.
Input port for the RSSI signal from the
50 RSSI
FM IF IC (RX unit; IC2).
51 25TI Input port for the 2/5TONE signals.
52 DTCSI Input port for the DTCS signal.
Input port for the busy signal from the
TEL-
68 pulse tone dialer IC (LOGIC unit;
BUSY
IC47).
Outputs the serial clock signal for the
69 MCK
EEPROM (LOGIC unit; IC37).
I/O port for the serial data signal
70 MDT from/to the EEPROM (LOGIC unit;
IC37).
Outputs strobe signal for the pulse
71 TELSTB
tone dialer IC (LOGIC unit; IC47).
Outputs the ON/OFF HOOK control
72 HOOKC
signal for the telephone line.
Input port for the ringer detecting sig-
73 RING
nal from the telephone line.
Outputs the control signal for the clock
74 SHIFT
shift circuit.
Input port for the power supply detec-
75 INT
tion signal.
Outputs the serial data signal to the
76 TXDTO
ACC connector.
Input port for the serial data signal
77 RXDTO
from the ACC connector.
Outputs the control signal for the
78 DTSEL1
DTMF SW IC (LOGIC unit; IC50).
79 TXDT1 Outputs the clone data signal.
80 RXDT1 Input port for the clone data signal.
Outputs the control signal for the
81 DTSEL2
DTMF SW IC (LOGIC unit; IC30).
Input port for the TONE detecting sig-
82 DTSTD nal from the DTMF decoder IC
(LOGIC unit; IC31).
Input port for the data decoding signal
85 DTMFD from the DTMF decoder IC (LOGIC
unit; IC31).
Outputs the clock signal for the DTMF
86 DTACK
decoder IC (LOGIC unit; IC31).
Input port for the detection signal of
87 ONHOOK
the ON-HOOK signal.
Outputs the control signal for the port
88 IOE
expander IC (LOGIC unit; IC39–IC41).
Description
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Pin Port
number name
89 PE3STB
90 PE2STB
91 PE1STB
95 D2STB
96 D1STB
97 SDTO
98 SCK
99 RUNLK
100 C/DSW
3 - 8
Description
Outputs the strobe signal for the port
expander IC (LOGIC unit; IC41).
Outputs the strobe signal for the port
expander IC (LOGIC unit; IC40).
Outputs the strobe signal for the port
expander IC (LOGIC unit; IC39).
Outputs the strobe signal for the D/A
converter IC (LOGIC unit; IC25).
Outputs the strobe signal for the D/A
converter IC (TX unit; IC5).
Outputs the serial data signal for the
PLL IC (RX unit; IC4, TX unit; IC2),
dialer IC (LOGIC unit; IC47), port
expander IC (LOGIC unit; IC39–IC41)
and optional boards.
Outputs the clock signal for the PLL IC
(RX unit; IC4, TX unit; IC2), dialer IC
(LOGIC unit; IC47), port expander IC
(LOGIC unit; IC39–IC41) and optional
boards.
Input port for the unlock signal from
the PLL IC (RX unit; IC4).
Outputs the control signal for the TX-
TONE filter (LOGIC unit; IC4).