![background image](http://html2.mh-extra.com/html/icom/ic-f3/ic-f3_service-manual_3641153048.webp)
R433 1k
×
4
R431
1k
×
2
R432
100k
R237
100k
R236
1k
C442
47p
C441
0.1
C440
0.1
C438
0.1
C439
0.1
C257
47p
DUSF
DST
DST
AFON
AFON
LIGHT
LIGHT
T5C
T5C
TXC
75
SEG40
74
SEG39
73
SEG38
72
SEG37
71
70
SEG35
SEG34
SEG33
SEG31
SEG30
SEG29
CTDA2
CTDA0
CTDA1
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
P97/SEG40
P96/SEG39
P95/SEG38
P94/SEG37
P93/SEG36
P92/SEG35
P91/SEG34
P90/SEG33
P87/SEG32
P86/SEG31
P85/SEG30
P84/SEG29
P83/SEG28
P82/SEG27
P81/SEG26
P80/SEG25
P77/SEG24
P76/SEG23
P75/SEG22
P74/SEG21
P73/SEG20
P72/SEG19
P71/SEG18
P70/SEG17
P67 /SEG16
433875A40H [16 ch]
433875B26H [2-BANK]
IC8
38
39
40
41
42
43
44
45
46
47
48
49
50
P51/WKP1/SEG2
P52/WKP2/SEG3
P53/WKP3/SEG4
P54/WKP4/SEG5
P55/WKP5/SEG6
P56/WKP6/SEG7
P57/WKP7/SEG8
P60/SEG9
P61/SEG10
P62/SEG11
P63/SEG12
P64/SEG13
P66/SEG/14
P66/SEG15
CPU5
AVCC
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
SEG41
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
SEG51
SEG52
SEG41
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
SEG51
SEG52
MTONE
DTMF
MTONE
0.001
C256
LNJ310M6URA
DS2
LNJ310M6URA
LNJ808R8ERA
DS3
DS4
2SC2712
Q25
3.3k
1.5k
R205
R204
100
R155
R183
560
COM1
COM2
COM3
COM4
COM4
COM3
COM2
COM1
SEG29
SEG30
SEG31
SEG33
SEG34
SEG35
SEG37
SEG38
SEG39
SEG40
SEG41
SEG42
SEG43
SEG44
SEG45
SEG46
SEG47
SEG48
SEG49
SEG50
SEG51
SEG52
26
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
TONED
TONEM
AVCC
PE3/SEG52/CL1
PE2/SEG51/CL2
PE1/SEG50/DO
PE0/SEG49/M
PD7/SEG48
PD6/SEG47
PD5/SEG46
PD4/SEG45
PD3/SEG44
PD2/SEG43
PD1/SEG42
PD0/SEG41
VCC
PLST
SCK
SO
UNLK
VCC
VCC
T5
R5
S5
R5
S5
5p
C53
C52
0.01
C51
10p
4p
C65
3p
C67
4p
C66
FI2
CFWM450E [W]
CFWM450G [N]
O
I
1.5k
R85
R92
50k
R441
NTCCF20123NH
R89
10k
R87
1.8k [W]
3.3k [N]
R88
120k
R44
1.2k
R40
680k
R90
33k [W]
10k [N]
C123
0.001
220p
C121
R86
120k [W]
100k [N]
C122
220p
C490
220p
0.1
C120
0.001
C118
47
R84
TA31136FN(D)
IC2
AF
1
2
3
4
5
6
7
8
16
15
13
14
12
11
10
9
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIN
MIXIN
GND
N-REC
N-DET
RSSI
IFOUT
QUAD
AFOUT
C117
10
NO
MODCON
AFOUT
VCC
R5
S5
5V
470
R131
10
C154
0.1
C147
W1
100k
R130
C209
0.1
C210
0.1
W2
UN911H
Q17
PTTOUT
MIC
PTTIN
MICIN
MICOUT
0.0047
C132
100k
R104
1k
R452
270 [W]
470 [N]
R105
0.1
C133
C493
0.047 [L], [ML]
0.027 other
NJM2902V
IC3c
10
9
+
—
8
C134
150p [W]
220p [N]
150k [W]
180k [N]
R108
10k
R109
0.1
C217
0.0
C1
0.0
C12
3.9
R1
R468
6.8k
e
12k
u
VOL IN
5V
R42
1k
×
4
R41
56
L14
15nH
C62
6p
C61
6p
C60
0.001
C59
100p
C58
100p
C55
0.01
C57
22p
C56
0.1
5V
LVIN
47
C4
KS2
KS3
KS4
KR0
MM
RM
KR1
KR2
KR3
R5C
S5C
KS5
DS1
LM-1462B
L25
L403
1.5 H
L13
1 H
0.82 H
+
CTCSS
FRQCON
C54
0.001
C48
1
C443
0.047
R3
1 k
6.8
R34
1k other
2.7k [H
1
], [H
2
]
R46
1
C63
56p
X1
CR-576A
R45
100
R440
120k
C444
0.001
R50
100k
R49
47k
R150
50k
R51
470k
C69
33p
D7
HVU17
R48
100k
C72
4.7
C64
12p
R184
10k
R1
47
R185
1k
C234
0.001
C4
0.
C71
0.001
C446
47p
C70
0.01
LIGHT
Note
[ L ] ....... L-band (400 - 430 MHz)
[ML] ..... ML-band (440 - 470 MHz)
[ M H].....MH-band (470—500 MHz)
[ H
1
] ..... H
1
[ H
2
] ..... H
2
PD3140GS
IC1
Q11
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VCC1
IN1
ENB
CLK
DATA
T1
LOK
CP1
FI1
FO1
GND1
IN2
VCC2
XB
XI
XO
GND2
CP2
FI2
FO2
2SC4081
15.3 MHz
TX: 0V
RX: 4.8V
LED ON : 5.7V
COMPLETE VIEW
Summary of Contents for IC-F3
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