![background image](http://html2.mh-extra.com/html/icom/ic-703/ic-703_service-manual_3600260076.webp)
BUS LINE1
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
BUS LINE1
IT8V RL
IT3V
IT8V
IT3V
IT8V
4
8
7
6
5
1
2
3
IC560
NJM2904M
-
+
+
-
b
R571
100
a
C561 10p
L560
LR-391
C562 100p
C564 0.1
C569 330p
R565 47
C563 33p
D560 MA732
D562 MA732
C567 33p
D561 MA732
D563 MA732
R562
4.7k
R567
4.7k
C565
470p
C568
470p
R563
2.7k
R568
2.7k
R564
10k
R569
10k
C566
0.1
R574 68k
R575 33k
R561
100
C560 0.1
R572 33k
R573 33k
R566
100
C570 0.1
R700
1k
R703
1k
R701 47k
R702 47k
Q700
UM5K1N
C701
0.0047
C700
0.0047
L1S_
L1R_
L1S
L1R
R704
1k
R707
1k
L2R
R705 47k
R706 47k
Q701
UM5K1N
L2R_
L2S_
C703
0.0047
L2S
C702
0.0047
L3R
R711
1k
R708
1k
R709 47k
R710 47k
Q702
UM5K1N
L3R_
L3S_
C705
0.0047
L3S
C704
0.0047
L4R
R715
1k
R712
1k
R713 47k
R714 47k
Q703
UM5K1N
L4R_
L4S_
C707
0.0047
L4S
C706
0.0047
L5R
R719
1k
R716
1k
R717 47k
R718 47k
Q704
UM5K1N
L5R_
L5S_
C709
0.0047
L5S
C708
0.0047
L6R
R723
1k
R720
1k
R721 47k
R722 47k
Q705
UM5K1N
L6R_
L6S_
C711
0.0047
L6S
C710
0.0047
L7R
R727
1k
R724
1k
R725 47k
R726 47k
Q706
UM5K1N
L7R_
L7S_
C713
0.0047
L7S
C712
0.0047
L8R
R731
1k
R728
1k
R729 47k
R730 47k
Q707
UM5K1N
L8R_
L8S_
C715
0.0047
L8S
C714
0.0047
L9R
R735
1k
R732
1k
R733 47k
R734 47k
Q708
UM5K1N
L9R_
L9S_
C717
0.0047
L9S
C716
0.0047
CRR
R739
1k
R736
1k
R737 47k
R738 47k
Q709
UM5K1N
CRR_
CRS_
C719
0.0047
CRS
C718
0.0047
R800
1k
R803
1k
CIR
R801 47k
R802 47k
Q800
UM5K1N
CIR_
CIS_
C801
0.0047
CIS
C800
0.0047
R807
1k
C1R
R804
1k
R805 47k
R806 47k
Q801
UM5K1N
C1R_
C1S_
C803
0.0047
C1S
C802
0.0047
R811
1k
C2R
R808
1k
R809 47k
R810 47k
Q802
UM5K1N
C2R_
C2S_
C805
0.0047
C2S
C804
0.0047
R815
1k
C3R
R812
1k
R813 47k
R814 47k
Q803
UM5K1N
C3R_
C3S_
C807
0.0047
C3S
C806
0.0047
R819
1k
C4R
R816
1k
R817 47k
R818 47k
Q804
UM5K1N
C4R_
C4S_
C809
0.0047
C4S
C808
0.0047
R823
1k
C5R
R820
1k
R821 47k
R822 47k
Q805
UM5K1N
C5R_
C5S_
C811
0.0047
C5S
C810
0.0047
R827
1k
C6R
R824
1k
R825 47k
R826 47k
Q806
UM5K1N
C6R_
C6S_
C813
0.0047
C6S
C812
0.0047
R831
1k
C7R
R828
1k
R829 47k
R830 47k
Q807
UM5K1N
C7R_
C7S_
C815
0.0047
C7S
C814
0.0047
R835
1k
C8R
R832
1k
R833 47k
R834 47k
Q808
UM5K1N
C8R_
C8S_
C817
0.0047
C8S
C816
0.0047
R839
1k
C9R
R836
1k
R837 47k
R838 47k
Q809
UM5K1N
C9R_
C9S_
C819
0.0047
C9S
C818
0.0047
R843
1k
C0R
R840
1k
R841 47k
R842 47k
Q810
UM5K1N
C0R_
C0S_
C821
0.0047
C0S
C820
0.0047
C770 22
W753
W754
L761 2.2
µ
R750 39
C751 0.0047
C750 0.0047
D750
DAN202K
L1R_
L1S_
L750 LA-459
W750
RL750 ATX222
W755
W756
L751 LA-460
L762 2.2
µ
L2S_
R751 39
C753 0.0047
L2R_
C752 0.0047
D751
DAN202K
RL751 ATX222
W757
W758
L752 LA-461
L763 2.2
µ
L3S_
R752 39
C755 0.0047
L3R_
C754 0.0047
D752
DAN202K
RL752 ATX222
W759
W760
L753 LA-567
L764 2.2
µ
L4S_
R753 39
C757 0.0047
L4R_
C756 0.0047
D753
DAN202K
RL753 ATX222
W762
W761
L754 LA-568
L765 2.2
µ
L5S_
R754 39
C759 0.0047
L5R_
C758 0.0047
D754
DAN202K
RL754 ATX222
W764
W763
L755 LA-569
L766 2.2
µ
L6S_
R755 39
C761 0.0047
L6R_
C760 0.0047
D755
DAN202K
RL755 ATX222
W766
W765
L756 LA-570
L767 2.2
µ
L7S_
R756 39
C763 0.0047
L7R_
C762 0.0047
D756
DAN202K
RL756 ATX222
W768
W767
L757 LR-428
L768 2.2
µ
L8S_
R757 39
C765 0.0047
L8R_
C764 0.0047
D757
DAN202K
RL757 ATX222
W770
W769
L758 LR-429
L769 2.2
µ
L9S_
R758 39
C767 0.0047
L9R_
C766 0.0047
D758
DAN202K
RL758 ATX222
W772
W771
L770 2.2
µ
CRS_
R759 39
C769 0.0047
CRR_
C768 0.0047
D759
DAN202K
RL759 ATX222
C783 27p
L850 2.2
µ
CIS_
R850 39
C851 0.0047
CIR_
C850 0.0047
D850
DAN202K
RL850 ATX222
RL851 ATX222
D851
DAN202K
C852 0.0047
C1R_
C853 0.0047
R851 39
C1S_
L851 2.2
µ
D852
DAN202K
RL852 ATX222
C854 0.0047
C2R_
C855 0.0047
R852 39
C2S_
L852 2.2
µ
D853
DAN202K
RL853 ATX222
C856 0.0047
C3R_
C857 0.0047
R853 39
C3S_
L853 2.2
µ
D854
DAN202K
RL854 ATX222
C858 0.0047
C4R_
C859 0.0047
R854 39
C4S_
L854 2.2
µ
D855
DAN202K
RL855 ATX222
C860 0.0047
C5R_
C861 0.0047
R855 39
C5S_
L855 2.2
µ
D856
DAN202K
RL856 ATX222
C862 0.0047
C6R_
C863 0.0047
R856 39
C6S_
L856 2.2
µ
D857
DAN202K
RL857 ATX222
C864 0.0047
C7R_
C865 0.0047
R857 39
C7S_
L857 2.2
µ
D858
DAN202K
RL858 ATX222
C866 0.0047
C8R_
C867 0.0047
R858 39
C8S_
L858 2.2
µ
D859
DAN202K
RL859 ATX222
C868 0.0047
C9R_
C869 0.0047
R859 39
C9S_
L859 2.2
µ
D860
DAN202K
RL860 ATX222
C870 0.0047
C0R_
C871 0.0047
R860 39
C0S_
L860 2.2
µ
C872 9p
C873 18p
C874 36p
C876
150p
C877 150p
C881 0.001
C875
150p
C878 150p
C882 150p
C880 220p
C879 330p
C885 0.001
C883 0.001
W870
W871
C891
0.0047
C890
0.0047
L890 EXC-ELDR25C
R675 47k
R674 SA05C
FORL
REFL
W562
PO
-
+
-
+
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
PA
UNIT(3)
PA
UNIT(1)
L1
L2
L3
L4
L5
L6
L7
L8
L9
CR
C2
C1
C3
C4
C5
C6
C7
C8
C9
PA UNIT(2)
PO
PO
ANT
3.1V
10mS or more
8.0V
10mS or more
11 - 10