![background image](http://html.mh-extra.com/html/icom/ic-7400/ic-7400_service-manual_612265071.webp)
1
2
21
to MAIN
unit J100
22
J2
-
8V
GND
GND
GND
GND
GND
AG
C
TNV1
RSKY
RDRS
RMDT
14V
8V
T8V
R8V
5V
ALC
TNV2
RT
X
S
DRIV
RBST
RMCK
1
2
21
to MAIN
unit J160
22
J1001
CON2
PD
A
T
PST4
PST2
LDRS
UNLC
GND
5V
8V
GND
14V
PCK
PST5
PST3
PST1
GND
GND
5V
GND
8V
14V
FCNT
CAL
KEY
1 2
to MAIN
unit J400
J1601
3LO
GND
to MAIN unit J250
2IF
P261
from CTRL unit J2
HRX
P2
from PA unit J1
YGR
P1
from PA unit J601
VRX
P601
8
1
9
16
1
9
16
10
1
4
5
8
1
4
5
8
1
8
16
9
33
23
1
11
12
22
44
34
1
8
16
9
1
4
8
5
1
8
16
9
1
100
76
26
50
25
75
51
W254
9-11 RF UNIT
• TOP VIEW
9 - 11
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 ...