![background image](http://html.mh-extra.com/html/icom/ic-7400/ic-7400_service-manual_612265070.webp)
9 - 10
1
21
to MAIN unit J1001
2
22
J901
DSPI1
GND
GND
GND
8V
GND
AGC2
GND
DSPO1
GND
GND
GND
GND
DSPI2
GND
8V
GND
AGC1
GND
GND
GND
DSPO2
29
1
MAIN unit J1000
30
2
DRES
DSKY
GND
NC
VSQL
TOFF
CTFL
GND
DRBY
DRQR
GND
DCK
DRQW
GND
GND
GND
DSST
GND
NC
DCBY
RTDT
NSQL
GND
DSTR
DDTR
GND
DDTW
DWBY
GND
NC
30
2
to MAIN unit J1000
29
1
J902
DRES
KEYIN
GND1
OUT7
OUT5
OUT3
OUT1
GND1
OBSY
RQO
GND1
CK
RQI
GND1
GND1
GND1
UNLK
GND1
OUT8
OUT6
OUT4
OUT2
GND1
STBO
DO
GND1
DI
IBSY
GND1
192K
1
10
20
11
1
10
20
11
1
8
16
9
1
10
20
11
1
7
14
8
1
7
14
8
1
4
8
5
1
4
8
5
1
4
8
5
1
4
8
5
1
20
40
21
2
22
1
21
MAIN unit J1001
DRIF
GND
GND
GND
8V
GND
MONI
GND
DRAF
GND
GND
GND
GND
DTAF
GND
8V
GND
DAGC
GND
GND
GND
DTIF
• BOTTOM VIEW (DSP UNIT)
Summary of Contents for IC-7400
Page 1: ...HF VHF TRANSCEIVER i7400 SERVICE MANUAL ...
Page 63: ...to S LOGIC board J303 DS1002 9 2 DISPLAY BOARD TOP VIEW 9 3 for free by RadioAmateur eu ...
Page 72: ...9 12 1 9 18 10 BOTTOM VIEW RF UNIT for free by RadioAmateur eu ...
Page 74: ... BOTTOM VIEW CTRL UNIT 9 14 for free by RadioAmateur eu ...
Page 76: ... BOTTOM VIEW TUNER UNIT 9 16 for free by RadioAmateur eu ...
Page 78: ...9 18 BOTTOM VIEW PA UNIT for free by RadioAmateur eu ...
Page 92: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13811HZ C2 2002 Icom Inc ...