Icom IC-910H Service Manual page 37

Nov. 2008
MAIN UNIT (3/3)
R655
C661
C656
D651
CP654 CP651 CP652
R660
R657
L651
J651
FI651A FI651B
D652
C651
R659
P
A
J652
D653
L652
R654
R653 C655
R651
R652 C654 R658
CP653
IC701
C732
16 234 58 7
C723
Q701
C706
R703
L703
R702
C701
C708
R704
C710
R708 R710
R711
R707
C711 L704
4 5 6
Q702
C718 R712
C716
Q705
32 1
R706
Q703
C713
C719
R N
S S
I Q
S S
R971
C950
R970
R969
L951
C973 C964 C965
C966
R955 R965
R951
IC951
16 OSCIN 1
FI512
15 MIXIN
OSCOUT 2
14 GND
MIXOUT 3
13 N-REC
VCC 4 C959
12 N-DET
IFIN 5
11 RSSI
DEC 6
10 IFOUT
FILOUT 7
9 QUAD
X951 FILIN 8
C951 AFOUT
D951
R953
C954
FI511
C953 R952 C955
C962
C958
R954
R957
R961 R956
C956
C952
C957
R958
Q952
C963
9V
AGCS
R661 C660
C662
Q651
R667
R662
R665
R663
Q652
L653
C657
C658 R666
C659
R664
D701
FI751
D751 D753
1 2
R751
C709
R705
R752 34
D752 D754
R755
R753
R756
C751 C752
R754
R716
CP751 CP752
Q707 D757
C721 D755
C722 43
5 2
R758
D756 D758
6 1 R761
R759
R714
R762
Q706
R715
C754 C756
R760
R713
C720
D759
C760
R763 R764 D761
D762
R765
C758
C759 R769
C763
R767
R766
N
B
S
S
1 C1877
1 IC1804A
R1885
3
1
2
R1886
4
R1884
C1878
C1879
R1883
R1890 R1889
C1031
R967
R1011
C960 9
R966
R968
R1009
10
C1007
D952
R1016
C1008 R1008 C1011 C1034
R1042 R1014 C1027
R1017
C1026 C1009
C1010
R959
R960
R964
R1015
Q1001
C961
R1029
R1025
R1024
C1019
R1023
Q951
3 4 C1032 C1020
2 5
Q953
1 6 C1014 43
R1020 R1021
R1022
5 2
6 1
R1019 C1013
R1026
C1015
R1027
W
N C1018
C
C R1028
T
S C
S
IC801
C803 C801
C826
C802
144M
144S
430S
430M
R757 R822
TXS
R807 Q801
C753
D804
R808
1F1S
Q751 RXS
3 4 Q831 C817 C818
2 5
Q817
1 6
R844
R846
1F2S
Q752
3 4
C842
R843
2 5
1 6 C843 R845 C869
C840
R855
Q851
L851
C841
Q850
R841
1FTS R875
R842
Q753
3 4
2 5
R852
1 6
C851
C854 C855
R871
C762
C853 R854
AGCS
C903
C
R904
E
N
S
IC1804B
D904
R902
6 CP854
R905
7 SMLS
R903 5
D905
R927
R1892
R1031
9V
5V
-5V
R1012
8
IC1001C
R1013
C1033
IC1001D
13
C1012
14
12
R1039 R1040
R1018
1 IC1002
6
12 X 14
X0
Q1002
13
X1
Y 15
R1030
2
Y0
Z 4
AFSS 1
Y1
R1004
AFFS 5
Z0 R1045 C1024
AFTS
3 Z1
R1033 6
R1036
INH C1045 R1035
11
A
10
B
9
C
R1003
7 8 R1034
R1049
D1041
S D A A C1022 C1025
Q S F F
L S 1 2
C1023
S W S S
R1044
R805
C814
C813
Q805
3 4
2 5 Q807
1 6
R812
Q806
R811
C821
R824
Q808
Q816
D807 Q810
Q809
Q804 3 4
R814
2 5
C822
D805 R813
1 6
C828 C819
C827
R861
C872
R851
R862
R857
Q852
R864
L853
R859
L852
R863
R869 C861 C862 IC851
R858
8
C856 7 COLECT
C857
6 GND
5 BASE
BASE
C871
C870
C863 C864
R874
C859
R873
C913
Q902
C908
D903 Q903
43
Q901
D902
5 2
R907 R909
C904
6 1
R911
R906 R908
R912
C909
C905
C907
C906 R910
9V
5V
-5V
C1036
R1043
C1017
R1046
IC1001B
4 C1028
2 6 C1030
1 7
R1037
R1038
3 5
1
1
IC1001A
R1047
R1048
C1016 C1029
-5V
*Refer to "PARTS LIST" for the parts name and value.
36
IFS
IFS
14V
14V
9V
9V
-5V
-5V
IC803
5V
5V
C815 C816
VR9V
VR9V
UR9V
UR9V
Q811
VUT9
VUT9
R815
C823
R816
Q813
VT9V
VT9V
D806
C824
Q812
R818
R819
Q815
UT9V
UT9V
R821
Q814
R820
C825
T9V
T9V
R9V
R9V
144M
144M
430M
430M
144S
144S
430S
430S
TXS
TXS
RXS
RXS
AF1S
AF1S
AF2S
AF2S
IFOUT 1 L854 C868 R868
VCC 2 SQLS
SQLS
OSCIN 3
BASE 4
1F1S
1F1S
1F2S
C867 1F2S
C865 1FTS
1FTS
WNCS
WNCS
C866
AGCS
NBSS
NBSS
9V
AGRS
AGRS
AGFS
AGFS
AGSS
AGSS
C911
Q904 Q905
43 43
CENS
CENS
5 2 5 2 CTCS
CTCS
NSQS
NSQS
6 1 6 1
C910
R913
DSSW
DSSW
R914
C912
RFGS
RFGS
R915 R916
SMLS
OUTS
J1051
PLL
BFOS
1 3
GND BFOS
2
4
AFRP
AFRP
AFIM
AFIM
AFIS
AFIS
AFS