Icom IC-R3 Service Manual

DBLOFF
REF
FSET
VP
SHIFT
GND
1stLO
LV1
+3V
PCK
PDA
2ndLO
R3V
CONV
GND
LV3
CONLO
GND
1
2
3
4
PSTV
D64
MA2S077
D63
MA2S077
R128
10 k
C916
0.001
R134
10 k
C186
0.001
D65
MA2S077
R130
4.7 k
D66
MA2S077
C188
0.001
C187
2 P
L49
47 nH
L47
12 nH
R135
56
C150
0.001
C168
0.001
C167
0.001
C170
0.001
6
5
4 3
2
1
Q26
FH102
R139
1 k
L54
10 nH
C193
22 P
C196
2.5 P
C198
12 P
C199
39 P
R138
150
R137
68 k
L48
15 nH
L46
6.8 nH
L55
8.2 nH
R132
68 k
L50
15 nH
C190
3 P
C191
5 P
C192
22 P
C194
33 P
L52
15 nH
L53
12 nH
C189
2 P
L51
8.2 nH
C195
3 P
C197
5 P
C211
5 P
C212
2 P
C213
5 P
C214
2.5 P
C215
1.5 P
C216
2.5 P
R129
1 k
R131 47
R133
100
DBL2
DBL1
R3V
C171
0.001
C169
0.001
R140
10 k
D68
MA2S077
3
2
1
4
5
Q27
XP1114
D67
MA2S077
C151
0.001
HV
BGND
VIDEO
AFOUT
AFIN
AFIN
WFM
C925
47
FSET
DBL2
1stLO
VIDEO
AFOUT
R933
150
R934
150
Q855
2SC4081
D122
MA2S077
R124 10 k
C125 0.01
D121
MA2S077
R125
4.7 k
3
2
15
4
Q868 XP1114
R123
1 k
R922
100
R923
100
C919
4.7
R122 100
C122
0.01
C121
0.01
Q121
2SC4215
C123
12 P
L121
3.3 H
L122
3.3 H
C126
0.01
C124
12 P
R121
68 k
J5 To FM-TV unit J1
To VCO unit J1To VCO unit J2
J7 To FM-TV unit
R929
220 k
R202 4.7 k
R201 47 k
C201
0.001
C202
0.001
C203
0.001
DBL1
DBL2
VIDEO
R3V
VIDEOVIDEO
R3V
B1C
TRAC
B1C
FMTV5
AFIN
FMTV5
AFIN
TRAC
TVIF5
CONV
CONV
VP
REF
REF
SHIFT
LV1
1stLO
+3V
PSTV
LV3
2ndLO
CONLO
FMTV5
VP
REF
SHIFT
VL1
+3V
PSTV
LV3
2ndLO
CONLO
FMTV5
Q202 2SA1588
R940
47
R203
47 k
R204
47 k
Q204
2SA1588
3
2
15
4
Q203
XP1213
D201 MA2S111
R205
2.2 k
L909
0.12 H
Q201 UN9213
TVIF5
RXC
PDA
PGSTB
B2C
RFO
B3C
PCK
R938 15 k
R937 330
LO
3
GND
2
RFI
1
PS
4
VCC
5
IFO
6
IC10
UPC2757T
TRAC
C900
0.01
RFI
L908
0.12 H
C305
1.5 P
R939
47 k
R904 47 k
R906 150 k
R905
150 k
C307
0.01
D901
MA2S077
C904
0.01
CP6
FS
IC901 M52342FP
C927
120 P
C929
120 P
R901 4.7 k
C926
0.01
13
54
2
FI901
TSB6321D
Q857
2SC4403
C928
0.001
C902
0.1
C903
0.01
R903
39 k
C912
0.01
C901
0.01
L901
0.56 H
R926
330
Q854
2SC4081
FI905
TPSCC 5.5
R908 390 k
C911
0.47
C906
39 P
R925
1 k
1
2
3
L907
15 H
C918 4.7
C937
4.7
C923
4.7
C938 4.7
C917
4.7
L902
LS-535
C905 82 P
C922
100
R931
18 k
R924 22
R928
1 k
R927 220 k
R907 12 k
C924
47
225MC
RXC RXC
RX
C273
0.001
225M
470M 470M
30MC
30M
65M
Q856
2SC4081
R936 150
65MC
C988
0.001
C979
0.001
3
2
1 5
4
Q52 XP1114
Q53 DTA123JE
800MC
R935 150
3
2
15
4
Q54 XP1114
R932
100
R930
1 k
J3
J2
AFO
INTSP
CLONE
C118
0.01
C381
0.001
12
34 5
FI2
CFWM450E
600MC
R60
100 k
C103
0.22
C104
0.01
R62
1 k
R82
10 k
R83
10 k
C274
0.001
600M
C116
0.1
C108
470 P
C109
470 P
C110
0.1
RX
IC2 TA31136FN
C95
0.01
C96
0.001
C105
100 P
FI902
SFSCC5.5MC
R910
68
C907
47 P
L903 18 H
Q41
2SC4215
C101 0.01
C97
0.001
L78
3.3 H
C920
10
R958
1.2 k
C102
10
C99 0.001
R37
470
R36
2.2 k
A/V OUT
R35
56 k
R957
2.2 k
R909 2.2 k
C909
10
R72
10 k
R76
10 k
D73
MA2S077
C90
0.01
C92
0.01
R917
10 k
R918
22 k
C908
0.47
L76
2.2 H
C91
18 P
R73
560
C910
470 P
FI4
SFECV13.25MAS
C93
0.01
C961
10
C962
33
D74
MA2S077
L77
1.2 H
C87
0.01
D72
MA2S077
FI3
FL-319
D71
MA2S077
R77
3.3 k
C302
180 P
R3V
R
17
.2 k
D24
MA2S077
RFI
SFIOUT
IFIN
SFIOUT
IFIN
C153
0.1
R71
2.2 k
LO
3
GND
2
RFI
RFO
1
PS
4
VCC
5
IFO
1stLO 1stLO
6
IC1 UPC2757T
D902
MA2S077
C234
0.001
R912
4.7 k
C914
0.001
R75
10 k
R256
15
C94
0.01
D906 MA2S077
1
34567
8
2
FI904
LFSC25N11B0240B
C913
0.001
D907 MA2S077
R78 10 k
C88
100 P
R74
10 k
C152
0.001
C942
180 P
C70
0.001
R54
22 k
R55
3.3 k
Q42
DTA144EE
C106
10 P
C107
0.001
C115
0.001
C114
0.22
R53 10 k
L21
LS-510
R972 15 k
C98
0.001
R34
68
L906
33 nH
C915
0.001
R56
470
R59
1.5 k
CP1
QUAD
C65
0.01
D75
MA132WK
R81
15 k
R85
10 k
C66
0.01
456
Q44
XP6501
C990 0.1
R969
10 k
C992
0.1
R973
15 k
C113
0.001
R84
15 k
R61
47 k
C111
0.01
C112
0.01
R57 15 k
R64 10
R58
680
WFM
C64 15 P
R179
15 k
R31
1 k
D76 MA132WK
R178
150 k
R86
15 k
C117
0.1
6
5 2
4 3
1
Q46
XP4312
456
321321
Q45
XP6501
R30
2.2 k
C63
0.001
R177
47 k
D77
MA728
C68
0.01
C69
47
WFM AM
R29
470 k
C60
0.01
AMAF
C303
0.001
FMAF
AFIN
321
456
Q43
XP4312
R974
15 k
C304
0.001
D914
MA132WK
C61
0.001
R28
680 k
R27
15 k
SDET RSSI
C363
0.001
C67
0.001
C921
0.001
D52
MA6S718
R52
47 k
C931
8 P
R104
NTCCM16084BH103KC
R105
470 k
R103
120 k
R914
4.7 k
R255
330
C930
8 P
R257
82
VSS
1
DATA
2
CLK
3
LCK
4
Q0
5
Q1
6
Q2
7
Q3
8
Q4
9
Q5
10
Q6
NC
NC
Q7
Q8
Q9
Q10
Q11
QE
VDD
R50
10 k
+
+
+
+
Q852
DTA144EE
+
++
+
+
+
J4
B1C
B2C
B3C
30MC
65MC
PCK
PDA
EXPSTB
SHIFTC DBL1
DBL2
225MC
470MC
600MC
11
12
13
14
15
16
17
18
19
20
IC5 BU2092FV
800MC
+3V
1
2
3
4
5
6
7
8
9
10
11
12
DELAY
AFT
AGC
VIF
VIF
GND
GND
GND
SIF
AGC FIL
NBF
AFO LIM
SW
QIF
VCC
VCC
VCO
VCO
REG
REG
VIDEO
APC FIL
EQ
13
14
15
16
17
18
19
20
21
22
23
24
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILINAFOUT
QUAD
IFOUT
RSSI
N-DET
N-REC
GND
MIXIN
1
2
3
4
5
6
7
8 9
10
11
12
13
14
15
16
R3V
EP2
J1 To LOGIC unit J1
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
+
C262
0.001
EP1
BGND
VP
FSET
GND
GND
AM
WFM
108MC
AFO
330MC
INTSP
TRAC
ATT
174MC
CLONE
DBLOFF
HFC
PGSTB
EXPSTB
SPG
SPG
DCK DUD
DCK
DUD
+3V
PDA
AMAF
PCK
SDET
PSTB
CONVC
LVC
FMAF
TVIF5
RSSI
RXC
R3V
HV
HV
VIDEO
C261
47 P
S1
UP
E
DN
R169 15C244 0.001
C176
47 P
C177
47 P
C173
47
+
C172
0.001
C994
0.001
TV Mode: 0.9 V
FM, AM Mode: 0.9 V
WFM: 1.1 V WFM: 1.8 V
3.0 V
1.0 V
0.2 V
FM, AM Mode: 1.1 V
TV Mode: 3.8V
DBL Through: 1.5 V
DBL2: 3.0 V DBL2: 0.8 V
DBL1: 2.6 V
DBL2: 2.6 V
DBL2: 2.9 V
DBL1
2.9 V
DBL1: 0.7 V
TV Mode
2.8 V
TV Mode: 4.8 V
TV Mode
4.5 V
TV Mode: 3.3 V
TV Mode: 3.2 V
TV Mode: 2.7 V
TV Mode
2.5 V
TV Mode
4.6 V
TV Mode: 3.3 V
DBL1: 2.5 V
WFM: 1.5 V
WFM: 1.0 V
WFM: 0.7 V
Except WFM: 1.4 V
AM: 1.0 V
WFM: 1.0 V
AM: 1.1 V
AM: 0.7 V
AM: 0.5 V
Except WFM: 1.1 V
Except WFM
1.1 V
COMPLETE VIEW
12 - 5

Icom IC-R3 Specifications

General

Brand	Icom
Model	IC-R3
Category	Receiver
Language	English