Icom IC-7000, Руководство по обслуживанию

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3-6-2 MAIN CPU (LOGIC UNIT; IC1302)
Pin
number
Port
name
Description
26 CYDT
Outputs data signal for the clock gen-
erator (IC1201) for display control.
27 CYCK
Outputs clock signal for the clock gen-
erator (IC1201) for display control.
29 RTCDT
I/O port for the data signal from/to the
clock IC (IC1304) for clock indication
and timer function.
30 RTCCK
Outputs clock signal for the clock IC
(IC1304) for clock indication and timer
function.
42 LOST
Outputs strobe signal for the D/A con-
verter (DDS unit; IC901).
43 MST
Outputs strobe signal for the D/A
converter ICs (MAIN unit; IC2151–
IC2154).
46 MMDK
Input port for the data signal from the
microphone that is connected to the
rear [MIC] connector.
47 DRES
Outputs the reset signal for the DSP
ICs (IC301, IC2201).
48 PRES#
Outputs the reset signal for the LCD
controller (IC1226) and DDS IC (DDS
unit; IC301).
49 SQSS
Outputs the squelch control signal for
the ACC connector and connected
microphone.
51 MCK
Outputs clock signal for the D/A
converter ICs (MAIN unit; IC2151–
IC2154).
52 MDT
Outputs serial data signal for the D/A
converter ICs (MAIN unit; IC2151–
IC2154).
57 SDSS
Outputs the signal for H SEND or V
SEND selection.
High : While V SEND is selected.
58 TDAT
• Outputs data signal for AT-180.
• Outputs start signal for AH-3/AH-4.
81 DTXD
Outputs data signal for the DSP IC
(IC301).
82 DRXD
Input port for data signal from the
DSP IC (IC301).
83 2T8V
Outputs the TX band signal.
High :
While transmitting the 144 MHz
band.
104 4T8V
Outputs the TX band signal.
High:
While transmitting the 430 MHz
band.
105 RXS
Outputs R8 regulator (Q1701, Q1702)
control signal.
Low : While receiving.
106 TXS
Outputs T8 regulator (Q1703, Q1704)
control signal.
Low :While transmitting.
107 POWS
Outputs the power control signal .
High :When IC-7000 is power ON.
Pin
number
Port name Description
109 ECK
Outputs clock signal to the EE-
PROM (IC1301).
110 EDT I/O port for the EEPROM (IC1301).
113 FORL Input port for the forward voltage.
114 REFL Input port for the refl ection voltage .
115 ALCL Input port for ALC level.
116 SNDL
Input port for PTT control signal
from the FRONT unit or ACC con-
nector.
117 DPTL
Input port for PTT control signal
from the DATA connector.
118 THML
Input port for the temperature de-
tection signal.
119 MUDL
Input port for [UP] and [DN] switch-
es from the optional microphone
(HM-103, SM-20) that is connected
to the rear [MIC] connector.
121,
122
DASK,
DOTK
Input ports for [KEY] jack.
124 MMSL
Input port for the HM-151 connec-
tion detection.
127 TKEY Input port for tuner ON.
128 TRD
Input port for the detected signal for
the tuner unit connection.
133 LTXD
Outputs data signal to the sub CPU
(DISPLAY unit; IC2003).
134 LRXD
Inputs data signal from the sub
CPU (DISPLAY unit; IC2003).
135 PWRK
Input port for [PWR] key.
Low :
While [PWR] key is pushed.
137 3DST
Outputs strobe signal to the DDS
IC (DDS unit; IC51) for the 3rd LO
signal.
138 PCK
Outputs clock signal for the DDS
ICs (DDS unit; IC51, IC301) and
D/A converter (DDS unit; IC901).
140 1DST
Output strobe signal to the DDS IC
(DDS unit; IC301) for the 1st LO
signal.
142 PDT
Outputs serial data signal for the
DDS ICs (DDS unit; IC51, IC301)
a n d D / A c o nve r t e r ( D D S u n i t ;
IC901).