![background image](http://html2.mh-extra.com/html/icom/ic-7100/ic-7100_service-manual-addendum_3610552070.webp)
SECTION 1
BOARD LAYOUT
24
The actual configuration of the PC board can be seen by viewing the top and bottom BOARD LAYOUT pages together.
• VR UNIT B-7704C (Top view)
See the PARTS LIST H/V location on the PARTS LIST for location details.
• DISPLAY UNIT B-7703H (Top view)
C101
C102
C103
C104
C107
C108
C109
C110
C111
C112
C113
C114
C301
C302
C303
C405
C406
C407
C408
C410
C412
C413
C414
C601
C602
C603
C702
C703
C705
C706
C710
C714
C715
C716
C801
C902
C1001
D301
D601
D701
D801
DS301
DS302
DS601
DS602
DS603
DS604
DS605
DS606
DS607
DS608
EP301
EP302
EP401
EP504
EP505
EP506
EP701
EP703
EP704
EP705
7
0
7
P
E
6
0
7
P
E
EP708
0
1
7
P
E
9
0
7
P
E
IC301
IC601
IC701
IC901
J101
J401
J402
J403
J405
J501
J701
J901
L302
L303
L601
L602
L701
L702
MP301
MP402
MP601
Q403
Q404
Q801
R102
R119
R120
R301
R318
R405
R408
R410
R413
R414
R417
R504
R514
R605
R701
R702
R703
R801
R803
R1001
R1002
R1003
R1004
RL801
S601
S602
S603
5
0
6
S
4
0
6
S
S606
S607
S608
S609
S610
S611
S612
S613
5
1
6
S
4
1
6
S
S616
X201
P.AMP/ATT
NR
J1001
RF PWR/MIC
MENU
NB
SPEED/PITCH
RIT
J101
J901
TO VR
TUNER/CALL
DR
NOTCH
SET
C
F
X
K
C
I
U
Q
AUTOTUNE/RX-CS
SPEECH/LOCK
MPAD
RIT
PBT
J401
J405
TO
EX-2832
J403
J402
H0
H5
H1
0
H1
5
H2
0
H2
5
H3
0
H3
5
H4
0
H4
5
H5
0
H5
5
H6
0
H6
5
H7
0
H7
5
H8
0
H8
5
H9
0
H9
5
H1
00
H1
05
H1
10
H1
15
H1
20
H1
25
H1
30
H1
35
H1
40
H1
45
H1
50
V
0
V
5
V
1
0
V
1
5
V
2
0
V
2
5
V
3
0
V
3
5
V
4
0
V
4
5
V
5
0
V
5
5
V
6
0
V
6
5
V
7
0
AFL
MCHBK
TDS
3R3V
BNKBK
VR1K
BNKAK
MCHAK
RFL
VR2K
RDS
GND
8V
GND
DTXD
DRXD
BOOT0
3R3V
MAINDAK
MAINDBK
3R3V
CLKK
GND
F8VM
U/D
PTT
MICLE
MICL
GND
SQLS
FMSL
[ELEC-KEY]
[MIC]
[MAIN UNIT]
[PHONES/SP]
DS1
J1
R1
S1
J
1
T
O
D
I
S
P
L
A
Y
B-7704C
H0
H5
H1
0
H1
5
H2
0
H2
5
H3
0
H3
5
H4
0
V
0
V
5
V
1
0
V
1
5
V
2
0
3R3V
AFL
VR2K
TDS
8V
RDS
VR1K
RFL
BNKAK
MCHAK
BNKBK
MCHBK
GND
GND
[M-CH]•[CLR]
[PWR]•[AF
]
(Amended page)
February 2017