![background image](http://html.mh-extra.com/html/icom/ic-f80ds/ic-f80ds_service-manual_612667033.webp)
D
R
A
O
B
T
N
A
4
-
9
)
d
n
a
b
w
o
L
(
W
E
I
V
P
O
T
•
H
5
H10
H0
V5
V10
V15
V0
D
N
G
to MAIN unit
T
N
A
D
N
G
ANT
GND
)
S
I
S
S
A
H
C
(
1
J
0
1
H
5
H
0
2
H
5
1
H
0
3
H
5
2
H
0
4
H
5
3
H
0
5
H
5
4
H
0
6
H
5
5
H
0
7
H
5
6
H
0
8
H
5
7
H
0
9
H
5
8
H
0
0
1
H
5
9
H
0
1
1
H
5
0
1
H
0
2
1
H
5
1
1
H
5
2
1
H
0
H
5
V
0
1
V
5
1
V
0
V
5
2
V
0
3
V
5
3
V
0
2
V
5
4
V
0
4
V
2
1
1
1
7
4
1
8
3
1
1
7
4
1
8
4
2
1
4
8
5
T
T
A
B
from FUSE board J1
D
N
G
D
N
G
to ANT board
T
N
A
D
N
G
R
O
T
I
N
O
M
T
T
P
N
W
O
D
P
U
3
P
M
,
2
P
M
5
P
M
6
P
M
1
4
8
5
1
J
t
i
n
u
P
S
D
o
t
2
J
GND
5V
VCC
DMMT
D
AFON
NC
DRMT
NC
D
AFO
NC
CCS
IRQD
CSO
DCSI
CCK
5
1
1
6
1
0
3
PTTI
DPTT
DMO
DMI
RSSID
B
USY
NC
NC
NC
NC
DFIL
GND
NC
DTXD
DRXD
ti
n
u
l
a
n
o
it
p
O
o
t
1
J
GND
CPU5
VCC
AMMT
AFONO
BEPO
ARMT
DISC2
AFOUT
REM
CCS
IRQA
CSO
A
CSI
CCK
5
1
1
6
1
0
3
PTTI
PT
TO
MC
O
T
MCIN
NC
B
USY
NC
SIG
OPT1
OPT2
OPT3
GND
OPV3
OPV2
OPV1
0
3
1
1
J
t
i
n
u
T
N
O
R
F
o
t
3
J
GND
MIC
SP+
VCC
VCC
OPTV
AFVI
V
O
XOUT
PWRSW
KR
EM
PTTI
PTTSW
MCON
SPCON
AFON
FS
D
A
FSCL
GND
RESET
XTXD
XRXD
RESB
R8
R4
R2
R1
+5V
+5V
EXPTT
3
-
9
T
I
N
U
N
I
A
M
2
-
9
W
E
I
V
P
O
T
•
D
R
A
O
B
E
S
U
F
3
-
9
W
E
I
V
P
O
T
•
0
1
H
5
H
5
1
H
0
H
5
V
0
V
B
ATT
k
c
a
p
y
r
e
tt
a
b
m
o
r
f
ti
n
u
N
I
A
M
o
t
GND
B
ATT
-
B
ATT+
)
d
n
a
b
h
g
i
H
(
W
E
I
V
P
O
T
•
H
5
H10
H0
V5
V10
V15
V0
D
N
G
to MAIN unit
T
N
A
D
N
G
ANT
GND
)
S
I
S
S
A
H
C
(
1
J