Board Layouts - Icom IC-718 Service Manual Addendum

January 2013

BOARD LAYOUTS

• MAIN UNIT
(TOP VIEW)
to PA unit J6
WS1
to FILTER unit J1
P2
10
9
T13V
GND
REF
L3 1st LO
W6
FOR W7
L5 from PLL unit
L4
J4
L2
L1
L6
1LOE
2 P1
1
J4001
1LO 1
CHASSIS
J201
J1
J1
R3
C5
L891 L881 L871 L861 L851
C891 C881 C871 C861 C851
R891 R881 R871 R861 R851
R3010
C892 C873 C872
C883 C882 C863 C862
C853
C893
R3009
L873
L883
L863 L853
L893
C2
C4 C874
C884
C864 R3007 C854
C894 C875
C886
C895 R3008
R5 R882
C887
R892
C888 R872 C876
R7
C102
C898 C896 C878 R3006
C101 L885 D808
R852
L101 C103 R862
L895 L875
C868 C858
C104
D816
L855
L865
C106
C3006
T13V 10
GND
REF
1LOE
C4003 L3
R4001
FOR
L5 R4002 IC3002
C4005
L4 1LO
R4003
L2
C4006
R4004
L1
C4007
R4005
1 L6 L100
C4008
R4006
C4009
J4001
Q3802 Q102
CP4001
R103
C109
IC3003
R104
R106
C112 R108
R107 C111
R3002
R3001
CP4002
C3007
D3001 D3002
C3404
IC3001
L106
C3401
L151
C3403
D4220
R4220
R4202
J4201
J4201
J4201
1
2
to LOGIC unit J7
to FILTER unit J3
WS3
P6
W10
W11
SEND
P5
2
CHASSIS
J701
L702
R701
R703
C703
BK
C702
L701
Q701
R704
L703
J701
D821 L4802
D801 C801
L814
L813 R705
L811
C812
C845 C813
C846 C817
L801
C814 Q4801
C3502
C3504
C852 C843 L831
D822
C821
R842 D802
L843
R841
R821
C844 C842 R3005 R822 R824 R3003
RL4801
L821
L833 C3513
C822 L3501
C833
L835
C834
C3005
C839
R833
R832
L836
C840
W801
R1404
C 4 1 1 0 C 4 1 2 0 R1403 C 4 1 4 0
R904 L1402
R1401
C902
R902
R901
D902
C3003
D904
R903
C904 MP1
C100
R206
C204
C206 L902
Q101
C203 Q201
L201
C3004
R102 C905
C1209
C201
R201
R1202
C1101 C1202
L105
L1101
L1106
R1204
Q151
C154 Q1101
Q1104
R155
L151
Q1102 Q1103
R151 R153
L1201 L1202
C153
R1107 C1106
3 R 3 0
C151
C306
J401
C304
L301 L302 L303
FI301A J401
FI301B
C510
CP3701
J4401
J4401
W4401
2 1
J4401
29 1 29
J401
from PLL unit
J1
2nd LO
30 2 30
to LOGIC unit J6
14
8V 1
GND 2
BDT 4
4
SEND 3
13.8V 8
8
7
AFO 12 12
ALC
MOD 11
SQLS 13
FSKK 10
ELEC-KEY
KEY 6
BAND 9
ALC 5
EP4801
C5101 L5101
C5102 L5102
J4801
L3502
C3511
13
9 10 11 12
C3507
5 6 7
1 2
D3502
Q4601
R4227
C4662
MP25
R3303 R3302
C3301
C3302
Q511
C2204
R2201
C511
C2206
R3013
R3012 C2209
C3101
R3011
L1502 C2207
R3101
R1508
R2208
C1506 Q3101
C2211
C2202
W2201
Q1504 C1512
R1513
R1514
R1511
R1516
C1511 R1515
C1305
CP1501
R1522
Q1503
C1307 R1304
R1209 C1207 R601
R 5 1 6 0 R 5 1 7 0 R1308 L1304
R510
C1505 R1519 C1310
C601
R1307
R1505
C1513
C1504
R1523
R1518
R1302
C1503
C1515
R1504
R1502
C307 3 R 4 0 L1501
C1501
C1514
R1301
C1301
Q1501
D1503
R1310 R1311
R402
OPTION FILTER
L1302
FI1301
D401
C401 R509
C504 R508
R507
L501 Q502
Q501
R513 R506
R505
C507
C508
C503
L402
R503
J3601
J3601
3 2
RED
3
CHASSIS
FAN MOTOR MF1
ACC J4651
2
3 1
7 6 5
11 9
10
BFO
from PLL unit J2
13
1
BFO
EXT SP
2
BFOE
J2001
SPE
ESPO
R2385
SPO
Q2381
R2385 C4501 L4501
J2603
C2706
8 R2384
3 4
J2603
R2382
R2383
C2352
R2381
R2104
J2001
R2307
C2353
R2103
D2101
IC2102
R2321
C2213
R2214
R2403
C2214
R2223 R2302 R2301 R2106
L2001 R2402
R2107
C2315
R2304
R1902
R2303
C2215
R2003
D2301
C2009
C1902 R1903
R2306 C2301 R2317 R2006
C2313 R1616
R2218 R1905
R2219 C2216
R2320 C2008 C1904
C2006 C2003
R2220
C2217 R2222 C2001 R2001
C1631
R1631 C2004
R2303
FI611
R1633
D1632
R612
D1631
C611 C612
R613 R614 C1632 R606
R611 R623 R624
C621 C622
R621 J2601
C1616
R1627
R622
C631 C1621
R1610
C1623 R1621
C1622
R631
C1611
Q1601
R1614
R1622
R605
C1601
Q1602
C633 R1612
R604 C603 C1613 R1602
C602 R603 R602 C1602
C1815
L1621 L1611 L1601
R1815
D1803
C1812
R1614
R1720
C P 1 6 2 1 C P 1 6 2 2
R1718 R1719
R1717 R1722
R1713 R1715 C1701
R1712 R1714 R1723
R2312
R1716
D3701
Q503
Q3601 C3601
Q1703
R511
R512 C3702
D502
W3601
R3703
1
BLACK
1
The combination of top side and bottom side of this
1
SPO
SPEAKER
SPO
SP1
SPE
SPE
2
REMOTE
J4502
CIV
SPO
CIVE
C4502
SPE
J5001
C2723
EP2701
IC2702
C2101
R2721
C2720
R3603
R2108
C2102
C2105
R2102
R2501
R2101
C2104
R2406
C2403
C2402
C2709
D2701
C2602
C2103
W5001
C2405
R2708
R2722
R2407
R2703 R2803
C2710
C2702
W5004 J4101
W5005
R2701
1
TEMP R4101
1
2 TEMP
C4107 KEY 2
R2607
KEY
STRT
R2701 R2702
STRT HV HV
C4106 ICH
PAT8
ICH
C4105
C2704 ICL
PAT8
C4104 14V
ICL
14V 14V
C4103
14V
14V
14V
14V C4102 14V
PWS
14V
GND
14V
15 GND
J2602
C4101 16
PWS GND
GND
to PA unit J3
15
GND
J2602 GND
R1806 16
W5002
R1809
R2804
R1814
R1808
R2805
C2901
R1813
C1802
R1801
D1706
C2903
R1803
C1803
D1701
R1805
R1730
C1702
R1708
Q1706
Q1705
R1707
C2904
C2907
D1705
R2901
D1704
C2906