![background image](http://html.mh-extra.com/html/icom/ic-718/ic-718_service-manual-addendum_612206018.webp)
January 2013
14
BOARD LAYOUTS
• MAIN UNIT
(TOP VIEW)
SQLS
SEND
MOD
13.8V
8V
GND
BDT
AFO
FSKK
KEY
BAND
ALC
2
12
7
3
4
11
1
10
6
5
13
8
1
2
4
3
5
6
7
9
11
10
8
12
13
9
1
1
10
2
J201
WS1
WS3
J4001
J1
J701
to FILTER unit J1
from PLL unit
J4
GND
1LO
1LO
1LOE
1LOE
P1
P2
W6
to PA unit J6
W7
P5
P6
W10
to FILTER unit J3
W11
L3
L5
L2
L6
10
9
1
2
GND
T13V
L3
REF
L5
FOR
L2
L4
L6
L1
T13V
REF
FOR
L4
L1
2nd LO
J401
J3601
1
2
from PLL unit
J1
2LO
2LOE
2LO
2LOE
GND
DO
TK
D
ASK
VO
X
L
A
VXL
SML
ALML
REFL
FORL
PAT
L
BEEP
DNB
RXS
TXS
SBSY
KDS
DSPS
DSST
SSTB
DINT
DRES
ASTB
MSTB
FSTB
BSTB
MCK
MD
A
T
PO
WS
GND
GND
to LOGIC unit J6
STR
T
5V
SNDS
8V
8V
HV
14V
14V
FSKK
MICE
MIC
SEND
SQLS
SEND
SEND
SEND
SPS
PHOE
PHOE
PHO
PHO
GND
GND
GND
GND
CIVE
CIV
ALMS
NC
KEY
J4201
1
2
30
29
to LOGIC unit J7
J4401
1
2
30
29
GND
GND
14V
14V
14V
PAT8
HV
KEY
GND
PWS
14V
14V
ICL
ICH
STRT
TEMP
J4101
1
2
15
16
GND
GND
14V
14V
14V
PAT8
HV
KEY
GND
PWS
14V
14V
ICL
ICH
STRT
TEMP
16
15
2
1
J4502
CIV
CIVE
SP1
SPE
SPE
ESPO
SPO
SPO
SPO
SPE
1
2
3
1
BLACK
CHASSIS
FAN MOTOR MF1
RED
3
FA
N
–
FA
N
+
to PA unit J3
SPEAKER
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
EXT SP
ALC
ACC
J4651
SEND
REMOTE
ELEC-KEY
1
2
J2001
from PLL unit J2
BFO
BFOE
BFO
SPE
SPO
1st LO
CHASSIS
CHASSIS
C1
C2
C3
C4
C5
C100
C101
C102
C103
C104
C105 C106
C107
C108
C109
C110
C111
C112
C113
C151
C152
C153
C154
C155
C156
C157
C158
C201
C202
C203
C204
C205
C206
C301
C302
C303
C304
C305
C306
C307
C401
C501
C502
C503
C504
C505
C506
C507
C508
C509
C510
C511
C601
C602
C603
C611
C612
C621
C622
C631
C632
C633
C701
C702
C703
C704
C801
C802
C803
C811
C812
C813
C814
C815
C816
C817
C821
C822
C823
C824
C831
C832
C833
C834
C837
C838
C839
C840
C841
C842
C843
C844
C845
C846
C851
C852
C853
C854
C855
C856
C857
C858
C861
C862
C863
C864
C865
C866
C867
C868
C871
C872
C873
C874
C875
C876
C877
C878
C881
C882
C883
C884
C885 C886
C887
C888
C891
C892
C893
C894
C895
C896
C897
C898
C899
C901
C902
C904
C905
C906
C907
C1001
C1101
C1102
C1103
C1104
C1106
C1108
C1201
C1202
C1203
C1204
C1205
C1206
C1207
C1208
C1209
C1301
C1302
C1304
C1305
C1306
C1307
C1308
C1309
C1310
4
0
4
1
C
2
0
4
1
C
1
0
4
1
C
C1405
C1501
C1502
C1503
C1504
C1505
C1506
C1507
C1508
C1509
C1510
C1511
C1512
C1513
C1514
C1515
C1516
C1601
C1602
C1611
C1613
C1615
C1616
C1621
C1622
C1623
C1624
C1625
C1626
C1631
C1632
C1701
C1702
C1704
C1706
C1707
C1708
C1751
C1752
C1801
C1802
C1803
C1804
C1805
C1812
C1813
C1814
C1815
C1901
C1902
C1903
C1904
C1905
C2001
C2002
C2003
C2004
C2005
C2006
C2007
C2008
C2009
C2010
C2101
C2102
C2103
C2104
C2105
C2107
C2201
C2202
C2203
C2204
C2205
C2206
C2207
C2208
C2209
C2210
C2211
C2212
C2213
C2214
C2215
C2216
C2217
C2219
C2301
C2303
C2304
C2305
C2306
C2309
C2310
C2312
C2313
C2314
C2315
C2352
C2353
C2354
C2380
C2381
C2382
C2383
C2384
C2401
C2402
C2403
C2405
C2501
C2502
C2601
C2602
C2701
C2702
C2703
C2704
C2705
C2706
C2708
C2709
C2710
C2720
C2721
C2722
C2723
C2801
C2901
C2902
C2903
C2904
C2905
C2906
C2907
C3001
C3002
C3003
C3004
C3005
C3006
C3007
C3101
C3301
C3302
C3401
C3402
C3403
C3404
C3501
C3502
C3503
C3504
C3505
C3506
C3507
C3508
C3509
C3510
C3511
C3512
C3513
C3601
C3602
C3702
C3801
C4003
C4005
C4006
C4007
C4008
C4009
C4101
C4102
C4103
C4104
C4105
C4106
C4107
C4200
C4201
C4202
C4203
C4204
C4205
C4206
C4207
C4208
C4209
C4210
C4211
C4212
C4213
C4214
C4215
C4216
C4217
C4218
C4219
C4220
C4221
C4222
C4223
C4224
C4225
C4226
C4227
C4401
C4402
C4403
C4404
C4405
C4407
C4408
C4409
C4410
C4411
C4412
C4413
C4414
C4415
C4416
C4417
C4501
C4502
C4648
C4651
C4653
C4654
C4655
C4656
C4659
C4660
C4661
C4662
C4801
C4802
C4803
C5001
C5101
C5102
D201
D202
D301
D302
D303
D304
D305
D306
D401
D501
D502
D503
D601
D602
D603
D604
D605
D606
D607
D608
D701
D702
D801
D802
D803
D804
D805
D806
D807
D808
D809
D810
D811
D812
D813
D814
D815
D816
D821
D822
D901
D902
D903
D904
D1301
D1302
D1501
D1503
D1510
D1631
D1632
D1701
D1702
D1703
D1704
D1705
D1706
D1707
D1801
D1802
D1803
D1901
D2101
D2201
D2202
D2301
D2381
D2701
D3001
D3002
D3502
D3503
D3701
D4220
D4801
EP2701
EP4801
FI611
FI1301
FI301A
FI301B
IC1
IC1701
IC1751
IC2001
IC2101
IC2102
IC2201
IC2301
IC2351
IC2701
IC2702
IC2801
IC2901
IC3001
IC3002
IC3003
IC3004
IC3005
IC3006
IC3301
IC3401
IC3501
J1
J201
J401
J701
J2001
J2501
J2601
J2602
J2603
J3601
J4001
J4101
J4201
J4401
J4501
J4502
J4651
J4801
J5001
J5101
L1
L2
L100
L101
L102
L103
L104
L105
L106
L151
L152
L153
L201
L202
L301
L302
L303
L401
L402
L501
L701
L702
L703
L801
L802
L811
L812
L813
L814
L821
L822
L831
L832
L833
L835
L836
L841
L842
L843
L851
L852
L853
L854
L855
L861
L862
L863
L864
L865
L871
L872
L873
L874
L875
L881
L882
L883
L884
L885
L891
L892
L893
L894
L895
L901
L902
L903
L904
L1101
L1102
L1103
L1104
L1106
L1201 L1202
L1301
L1302
L1303
L1304
L1401
L1402
L1501
L1502
L1503
L1601
L1611
L1621
L2001
L2301
L2901
L3501
L3502
L4501
L4651
L4652
L4653
L4654
L4656
L4657
L4658
L4659
L4660
L4661
L4801
L4802
L5101
L5102
MP1
MP25
Q101
Q102
Q151
Q201
Q501
Q502
Q503
Q511
Q701
Q1001
Q1002
Q1101
Q1102
Q1103
Q1104
Q1201
Q1301
Q1401
Q1402
Q1501
Q1502
Q1503
Q1504
Q1505
Q1506
Q1507
Q1508
Q1509
Q1601
Q1602
Q1603
Q1611
Q1703
Q1705
Q1706
Q1801
Q1802
Q1803
Q1805
Q2302
Q2381
Q2383
Q2384
Q3101
Q3601
Q3701
Q3702
Q3801
Q3802
Q4601
Q4801
R1
R2
R3
R4
R5
R6
R7
R101
R102
R103
R104
R105
R106
R107
R108
R151
R152
R153
R154
R155
R156
R201
R202
R203
R204
R205
R206
R301
R302
4
0
3
R
3
0
3
R
R401
R402
R403
R501
R502
R503
R504
R505
R506
R507
R508
R509
R510
R511
R512
R513
R514
R601
R602
R603
R604
R605
R606
R611
R612
R613
R614
R621
R622
R623
R624
R631
R632
R633
R634
R635
R701
R703
R704
R705
R801
R802
R821
R822
R823
R824
R831
R832
R833
R841
R842
R851
R852
R861
R862
R871
R872
R881
R882
R891
R892
R901
R902
R903
R904
R1001
R1002
R1101
R1102
R1103
R1105
R1107
R1108
R1201
R1202
R1204
R1205
R1206
R1207
R1208
R1209
R1300
R1301
R1302
R1304
R1305
R1306
R1307
R1308
R1310
R1311
R1401
R1402
R1403
R1404
R1501
R1502
R1503
R1504
R1505
7
0
5
1
R
6
0
5
1
R
R1508
R1509
R1510
R1511
R1513
R1514
R1515
R1516
R1517
R1518
R1519
R1520
R1521
R1522
R1523
R1601
R1602
R1603
R1604
R1610
R1611
R1612
R1614
R1615
R1616
R1617
R1621
R1622
R1623
R1624
R1625
R1626
R1627
R1631
R1632
R1633
R1703
R1706
R1707
R1708
R1709
R1710
R1711
R1712
R1713
R1714
R1715
R1716
R1717
R1718
R1719
R1720
R1721
R1722
R1723
R1724
R1725
R1729
R1730
R1751
R1752
R1754
R1755
R1801
R1802
R1803
R1804
R1805
R1806
R1807
R1808
R1809
R1810
R1812
R1813
R1814
R1815
R1901
R1902
R1903
R1904
R1905
R1906
R1907
R2001
R2002
R2003
R2004
R2005 R2006
R2007
R2008
R2101
R2102
R2103
R2104
R2105
R2106
R2107
R2108
R2201
R2202
R2203
R2204
R2206
R2208
R2209
R2210
R2211
R2212
R2213
R2214
R2215
R2216
R2217
R2218
R2219
R2220
R2221
R2222
R2223
R2224
R2225
R2300
R2301
R2302
R2303
R2304
R2305
R2306
R2307
R2308
R2310
R2312
R2313
R2317
R2318
R2319
R2320
R2321
R2352
R2353
R2381
R2382
R2383
R2384
R2385
R2386
R2387
R2401 R2402
R2403
R2406
R2407
R2501
R2601
R2602
R2603
R2604
R2605
R2606
R2607
R2701
R2702
R2703
R2704
R2705
R2706
R2707
R2708
R2709
R2710
R2720
R2721
R2722
R2803
R2804
R2805
R2901
R2902
R2903
R3001
R3002
R3003
R3004
R3005
R3006
R3007
R3008
R3009
R3010
R3011
R3012
R3013
R3101
R3102
R3201
R3202
R3203
R3302
R3303
R3501
R3502
R3503
R3504
R3505
R3506
R3601
R3602
R3603
R3701
R3702
R3703
R3704
R4001
R4002
R4003
R4004
R4005
R4006
R4007
R4101
R4102
R4201
R4202
R4203
R4204
R4205
R4206
R4207
R4208
R4209
R4210
R4211
R4213
R4214
R4215
R4217
R4218
R4219
R4220
R4221
R4222
R4223
R4224
R4225
R4226
R4227
RL4801
W801
W1202
W1311
W1726
W2101
W2201
W2351
W3601
W4216
W4401
W4801
W4802
W4803
W5001
W5002
W5003
W5004 W5005
J2001
J2603
J4502
R2385
R2321
J4101
J401
J201
J4001
J2602
R2701
R1707
R1720
BK
R3703
R503
R2303
R1614
R1730
OPTION FILTER
J4401
J4201
L151
B7725A
UT-102
CP4001
CP4002
2
2
6
1
P
C
1
2
6
1
P
C
L1103
CP1501
CP3701
H0
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
H80
H85
H90
H95
H100
H105
H110
H115
H120
H125
H130
H135
H140
H145
H150
H155
H160
H165
H170
H175
H180
H185
H190
H195
H200
H205
H210
H215
H220
V0
V5
V10
V15
V20
V25
V30
V35
V40
V45
V50
V55
V60
V65
V70
V75
V80
V85
V90
V95
V100
The combination of top side and bottom side of this
Summary of Contents for IC-718
Page 29: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 19 VOLTAGE DIAGRAM 25 Jun 2011 ...
Page 49: ...Jun 2011 20 C16 CP1 PLL UNIT BOTTOM VIEW FILTER UNIT BOTTOM VIEW PA UNIT BOTTOM VIEW ...
Page 81: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 16 VOLTAGE DIAGRAM 18 Jul 2009 ...
Page 196: ...9 4 VARISTOR BOARD BOTTOM VIEW PLL UNIT BOTTOM VIEW PA UNIT ...
Page 200: ...9 8 BOTTOM VIEW FILTER UNIT ...
Page 206: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13701MZ C1 q 2000 Icom Inc ...