Icom IC-F3 Service Manual page 45

5V
T5
R5
S5
VCC
FRQCON
DS2
LNJ310M6URA
R183
CTCSS
560
DS3
LNJ310M6URA
R234
22k
LVIN
Q25
2SC2712
DS4
R204 LNJ808R8ERA
3.3k
PLST
R155 SCK
R205
100
1.5k
SO
UNLK
DS1
LM-1462B
COM1
1
COM1
COM2 2
COM2
COM3 3
COM3
COM4 4
COM4
SEG29 5
SEG1 MODCON
SEG30 6
SEG2
SEG31
7 SEG3
SEG33
8
SEG4
SEG34 9
SEG5
SEG35 10
SEG6
SEG37 11
SEG7
SEG38 12
SEG8
SEG39 13
SEG9
R217 1k DUSF
SEG40 14
SEG10
R231 10k SEG41 15
CTDA
SEG11
SEG42 16
R230 27k SEG12
SEG43
17
SEG13
R229 68k
SEG44 18
SEG14
SEG45 19
SEG15
SEG46 20
SEG16
C226 C246 C272
SEG47
21
0.047 0.033 47p SEG17
SEG48 22
SEG18
SEG49 23
SEG19
SEG50 24
SEG20 DISCIN
SEG51 25
SEG21
SEG52 26
SEG22
27
SEG23
R236 1k 4
28
SEG24
DST
29
SEG25
T5C
30
SEG26
S5C 31
SEG27
5V
R5C 32
SEG28 AFOUT
33
SEG29
34
SEG30
35
SEG31
C264 C265 C266 C267
36
47p 47p 47p 47p SEG32
37
COM4
R237 1k 4
38
COM3
AFON 39
COM2
TXC
40
COM1
RM PTTOUT
MM
C268 C269 C270 C271
47p 47p 47p 47p
MIC
Note
VCC
TX 174 MHz : 4.3V
R51 R50
R185
RX 174 MHz : 3.6V
470k 100k
1k
R49
C69
47k
33p
C71
0.1 15.3 MHz
X1
R48
CR-575A e
10k
R45
CR-576A u
100
D7
HVU17
C72
R150
1 C70
50k
R184
C64 C63
0.01
C234 10k
12p 56p
0.001
5V
1 20
R42 VCC1 GND1
C55
1k 4 19
0.01 2
IN2
IN1
R35 R34 R32
3 18
VCC2
ENB 2.2k 10 560
17
4
XB
CLK
5 16
XI
DATA
15
C59 6
XO
T1 R33
47p
7 14
GND2 2.2k
LOK
C58 13
8
CP2
CP1
47p
L14 12
9
FI2 C54
47nH [L]
11 0.001 C48
R41 10
FO2
82nH [H] FO1 2.2
47 [L] C49
0.68
100 [H]
C60
IC1
0.001 C57 C56
C62 C61
PD3140GS
47p 0.001
18p [L] 18p [L]
9p [H]
12p [H]
R208
R5 10k
S5
C51 C65 C67 R84
3.6V
15p 4p 10p 390
IC2 R244
R85
C117
100k
1.5k TA31136FN(D)
0.001
FI2
CFWM450E [W], [M]
L13
L25 1 16
C53 C66 CFWM450G [N] MIXIN
1 H OSCIN
12p 18p 1 H
C290
2
OSCOUT 15
15p GND
O I 3 14
MIXOUT N-REC
13
4
VCC N-DET
12
5 IFIN RSSI
C123
R88 6 11
0.001 DEC IFOUT
120k
7 10
QUAD
FILOUT
8 9
R91 C121
FILIN AFOUT
390k [W], [M] 220p
R86
R87
100k [N]
100k
3.3k
C118
R92 0.01
50k C122 C120 C119
1 C114
220p 0.1 C113
0.033 0.001
W10 F W9 E
NOIS SD
VCC
DET
R5
S5
C125
R177 0.0022
IC3c 1k
R131 C124
NJM2902V
0.01
470
C132
0.01
10 C217
+
0.1
8
+
C154 9
Q17
—
10
UN911H C134
R104
220p
W1
100k R105
150
D R176
C147
R108 3.9k
0.1
150k
C133
R130 0.1
R109
100k
10k
W2
C
C209 C210
0.1
0.1
PTTIN BEEPOUT
MICIN MICOUT VOL IN
[L] ..... L-band [ W] ..... W-type e .... ETS/CEPT version
[H] ..... H-band [ M ] ..... M-type
u .... EIA/TIA version
[ N ] ..... N-type
Q11
2SC4081
Q34 CP1
4.0V
R30
2SK880
4.7k
D19
MA111
R28
R175 R31
100
1k 1k
C233
R186
0.001
47k
C50 +
10
C37
C39
R27
2p [L] 0.001
1p [H] 470
Q8
R26 2SC4226
C211
C46
8.2k
0.001 0.001
R151
L12 47k L11
2.7 H MC152-E558CN-100024
L10
C36
0.15 H [L]
0.001
C45
0.1 H [H]
R22
330p [L]
C33
68k
100p [H]
R24 0.001
220
R25
R29 D6
C34
8.2k
1k
MA77
0.5p
C47
0.1
C218
D28
C35
0.001 C38
MA77
0.001
1.5p
C42 C44 C41 D5 D13 Q7 Q6
Q32 DTC144EU
0.001 0.001[L] 39p HVU350 HVU350
2SC4226 2SC4215
0.0033 [H]
C229
R209
0.001
10k R5
S5
X3
CDBCA450CX24
R81
R77
R82
1.5k
100
1.2k [W]
2.3V
1.5k [M]
2.7k [N]
C108
C107 C106 L20
0.01
0.001 56p
0.47 H
R253 FI1
470 FL-270 [W] 0V
C116
C109
FL-268 [N], [M]
82p [W], [M]
0.001
100p [N]
Q13
C111
3SK166
0.01
R70
R72
C115
R75 100k
0.01 R80 C105 10k
100k 220 0.01
R83
470
C110 C104 L29
R79
560 9p [W] 0.001 0.1 H
11p [N], [M]
C112
1.3V
0.001
Q14
2SC2714
DET
R166 R167
R95 100k 100k
IC4
1M
BU4066BCFV
6
—
7 1
14
C126 I/O
VDD
5
0.0027
+ 2 13
O/I CONT.A
R96
3 12 R44
47k O/I CONT.D
10k
11
4
I/O I/O
IC3b
5 10
CONT.B
O/I
NJM2902V
R112
6
9
CONT.C O/I
1M
R93 R94
R257 8
7
VEE I/O
27k 1M C286 1M
0.0022
C131 C128
R168 R169
0.01 1
10k 10k
R171 C215 C148 R125
47k 0.1 0.01 27k
TONE
MM R5C RM CTCSS
VCC
T5
R161
0.15
R13
R162
R3
33
1k
1k
C24
0.001 Q28
R23 R21 R19
2SC4081
R15 1
680 470 390 3 2
100
4 5 6
C26 R163
L7 Q9
0.001 15k
0.1 H
XP6401
R2
L9 C9
10k
R12
0.15 H [L] R14 0.001
L8
0.1 H [H] 4.7k 3.3k
Q2
C32 0.1 H C10
R20 R16
R18 C22 L28 2SK2596
0.001
68k 1 0.001
C29 39k 15p 68nH
0.001
C25 C280
22p 24p
D3 R9
Q3
10k
MA77
2SC4226
C28
12p C27
C18 R8
C30 18p
R11 C23
R10 0.001 4.7k [L]
22p
1.2k 0.001 27 [L]
12k [H]
C31 82 [H]
R17
5p
4.7k
Q5 Q4
2SC4215 2SC4215
D4
MA77
1LO
R5
S5
R61
Q12 3SK239A
47
R68
R69
4.7k
100
L18
R222
C90
33nH 10k
C99
0.001
0.001
4.8V
C98
C94 C89
5p
2p 0.001
C102 L21
15p 47nH
D22 D12 D11 D21
HVU350 HVU350 HVU350 HVU350 R187
L19
100k R59
33nH
180
C96 C92
100p 100p
R66 R64
C101 C100 C97 1M 1M C91 C88 C87
R67 R65
0.001 0.01
56p 15p 8p 8p
100k 100k
0.9V
C93 0V
C95
0.001 0.001
T4 T3
VCC
S5
R115 120k
R97
220k
R99 R178
12k 3.9k
C212 R98 C135
0.01 180p
180k R114
Q16
22k [W], [M]
33k [N] XP6501AB
C213 R107 1.9V
R117
180k —
2.2 1.5k
14 R120
13
68k
R113 12 C284
C214 +
R119
0.033 68k 0.0033 [L]
300 k
IC3d 0.001 [H] C129
15
NJM2902V R145
+
1M
R170
10k
R159 R116
R249
100k 1k R100
C136 47k
0.0039 1.8k
D26
DAN202U
C137
0.027 [W], [M]
0.033 [N]
AFONOP
AFON
C8 L3 L2 L1
0.001 LA-225 LA-225 LA-226
R160 C6
150 12p [L] C4 C2
L26 10p [H] 5p 5p
C21 C20
C281 EXCCL3225U
+
33 0.001
0.001
L27 L24
2.7 H
EXCCL3225U
C204
C19 C7 C3 C1
0.001 C5
0.001
12p [L] 18p 20p 7p
C14 C289
15p [H]
R255
C288
0.001 47p
47
0.001
L6
L5
47nH
Y655LY-03K=P3
C15
Q1
L4 L23
C205 D1
33p
2SK2595 17nH
39nH [L] 0.001 MA77
33nH [H]
C287
C278
R7 C11
15p [L]
12p [L]
R5 R4
100 39p [H] 56p
10p [H]
100 22
C79 L22 L15
C13
C17 4p
47nH
0.001 47nH
0.001
C12
0.001
L16
54nH C52
22p
C80 D8
C78
5p [L] 10p MA862
3.5p [H]
Q37
S5 DTA144EU
R210
C179
3.9k
0.01
C73
0.1
C277 C83
1p R52
1.5p
100k
D10 D9
R53
HVU350 HVU350
10k
4
R252 L17 2
1 —
100k 54nH
C138
0.001 3
C85 +
C235 C81
120p 0.75p 100p R54
11
R55 180k
[L] only
1k C291
R62
C86 R57 0.001
1M
9p [L] 1M
D29
C75 R251
5p [H]
MA8030 0.01 330k
R58
R63
100k 100k IC3a
NJM2902V
C84 C82
T2
0.001 T1 T4 ISENS
0.001
7.0V
Q15
2SB1132
IC5
TA7368F C153
C171
0.1
1 10 +
NC
POUT
2 9
6 5 4 PWGND
VCC
8
3
PREGND
R122 NC
R128
2.7k
4 7 10
VIN PHASE
5 6
RIPPLE NF
1 2 3
R127
C145
R126 10k
R123 33
10
3.3k C146
R121 + C151
+
0.001
1k C150 47P C152
C149 10 0.047
0.1
C139 C140
0.1 0.1
VOL OUT
AF OUT
COMPLETE VIEW
ANT
J1
R1
82k
C76
20p[L]
18p[H]
C243
0.001
TXC
220