Icom IC-718 Service Manual Addendum page 52

Jun. 2011
• For [USA-02], [USA-03], [EUR-01], [ITA-01], [FRA-01], [ESP-01], [DEN-01], [OTH-01], [KOR-01], [CHN-03]
• LOGIC-A UNIT (TOP VIEW)
L48
• VR BOARD (TOP VIEW)
RIT RIT SHIFT SHIFT
R1
10 9 8 7 6 5
J1
J1
CLIC
10
J1
to LOGIC unit J3
DS1
POWER
L43
L49
AF AF RF/SQL RF/SQL
• MIC BOARD (TOP VIEW)
B7564
R2
4 3 2 1
NON-
CLIC
R4
1
23
R73
R72
Q70
R71
R74
MODE FIL
C42
R46 C40
R57 R45
DS1
B7543
R34
LOCK
4
3 5
J2
8
1 MIC
2 6
MICE 2
GND
AFO
1 7
SEND
to LOGIC unit
SQLS
J4
UD
8V
9
GND
GND 10
R20
R21
1
C8
R31 R33
C7
R18
D 2 3
D45
TS 4
L40
IC40
D 4 3
R54
Q103
C41
R51
7
C5 L1
R25 R24 D 6 3
C6
.
R211
C4 R27
D 8 3
R101
EP2
Q106
R100
L100
NB
IC103
R112
R103 R106
D 0 4
R117 R115 R179
R104
P.AMP
R114
C103
R2
Q3
D121 D123 D120
Q104
D42
D122 CH DN
• PHONE BOARD (TOP VIEW)
8
3 7
1
2 4
R36
D31
2 3
R32
D 3 3
5 6
D 5 3
8 9
D 7 3
0
ENT
D 9 3
COMP
SET
D 1 4
ATT
TUNER
D43
UP
PHONES
J1
1
2
4
3
7
8