![background image](http://html2.mh-extra.com/html/icom/ic-f3/ic-f3_service-manual_3641153046.webp)
J6
P1
SP
SPG
0.001
C164
1
2
1
2
C18
MAIN UNIT
Note
[ L ]..... L-band
[H]..... H-band
e
.... ETS/CEPT version
u
.... EIA/TIA version
[ W ]..... W-type
[ M ]..... M-type
[ N ]..... N-type
KUC3523-040245
MC1
J5
PTTIN
PTTOUT
MICOUT
MICIN
AFONOP
BEEPOUT
DISCIN
SIGOUT
AFOUT
OPPD
OPCS
OPINT
IROCH
W7
W8
A
B
1
2
3
5
4
SO
SI
MM
RM
MIC
Q29
XP1213
33k
R144
R142
100
0.001
C163
JPM1990-2013R
S1
1
2
3
4
5
HV
VOL IN
VOL OUT
VOL GND
VCC
VR
RV-312
R1
VR BOARD
EXT. MIC
MIC
SPEAKER
PTT
EXT. SP
ANT
CHARGER
J7
HSJ1122-010010
J2
OPT
MIC
0.001
0.001
C165
C166
0.001
C282
470p
C172
47p
C183
47p
C184
47p
C185
0.001
C189
0.001
C190
0.001
C187
0.001
C186
47p
C182
47p
C180
47p
C181
0.001
C283
HSJ1456-01-220A
J3
W5
W6
SP1
AF OUT
SP
CLONE
47p
C167
0.001
C168
0.001
C169
HEC2711-01-020
J4
0.001
C170
15
R156
Q27
SB07-03C
D25
15
R157
0.001
C200
0.001
C202
2SB1132R
C201
0.001
D24
DA204U
10k
R158
0.001
C203
DA204U
D27
15k
R174
DTC144TU
Q31
470
R132
CLIN
CLOUT
VOLIN
VOLOUT
AFOUT
VCC
5V
5V
T5
R5
5V
S5
2SA1588
Q22
2SA1588
Q21
2SA1588
Q20
4.7k
R137
4.7k
R139
R258
100
0.01
C160
R5C
R5C
S5C
22
22
22
C177
C176
C175
C174
4.7k
R141
0.01
C161
0.01
C223
0.01
C224
0.01
C162
T5C
2SB1132R
Q18
5
6
4
3
2
1
2.2k
R134
0.1
C159
10k
R133
R135
100
C158
0.001
C157
0.001
C156
10
C155
S-81250PG-PD
IC6
T1 T2 T3 T4
D
I
G
VCC
CPU5
P0
P1
P2
P3
1
2
3
A
4
5
6
B
7
8
9
C
*
0
#
D
1k
×
4
R240
KR3
KR2
KR1
KR0
D16
MA6S121
KS5
KS0
KS1
KS2
KS3
KS4
1k
×
4
R243
MA6S121
D17
IR1
D18
MA111
CTCSS
DET
R5
5V
5
4
1
2
3
NC
NC
VDD
VSS
S-80742SL-A6
IC11
470p
C197
10k
R149
330k
100k
100k
R221
0.47
C230
MA111
D15
220k
R147
R146
100k
R148
R250
10k
R154
6.8k
R153
1k
2SC4081
Q23
0.001
C144
R220
270k
R218
120k
R219
120k
0.01
C248
NTCCF20124AH
R182
R181
18k
R103
0.1
C232
330k
R215
150k
R216
0.1
C231
39p
C195
CR-463
X2
1M
R101
R102
10
8p
C193
C196
470p
R214
1k
12p
C194
CTCIN
RESET
CSIFT
ECS
SI
MTONE
TONE
DTMF
SO
DTC144EU
Q26
X25080SI-2.7 [16 ch]
25LC160T-I/SN [2-BANK]
IC7
1
2
3
4
5
6
7
8
CS
SO
WP
VSS
VCC
HOLD
SCK
SI
0.01
C245
33k [W], [M]
39k [N]
2SC4081
Q35
Q38
DTC144EU
R224
0.01
C250
47k
R207
R197
180k
C198
2.2
C221
0.01
C249
0.01
C225
0.022
C275
0.001
C222
0.1
R198
1k
R199
3.9k
R241
1k
R242
1k
R191
10k
R192
10k
R190
39k
R200
1k
R201
56k
Q33 XP4601
12k
12k
R203
C227
R202
0.1
0.01
C228
1k
×
4
1k
R226
R233
1k
×
4
R232
1k
×
4
SCK
SI
SO
UNLK
CL OUT
CL IN
PLST
NOIS
OPINT
ECS
OPPD
OPCS
R227
R213
1k
R228
100k
IR1
IROCH
100k
R193
100k
R196
100k
R195
R194
100k
R235
680k
0.01
C199
C265
47p
C264
47p
R237 1k
×
4
R245
100k
R238
100k
R236 1k
×
4
C266
47p
C267
47p
C226
0.047
C246
0.033
C272
47p
C269
47p
C268
47p
C270
47p
C271
47p
C276
47p
C251
47p
C252
47p
C253
47p
C262
47p
C263
47p
C257
47p
C258
47p
C259
47p
C260
47p
C261
47p
C254
47p
CONT
DST
DUSF
CTDA
T5C
S5C
R5C
AFON
TXC
RM
MM
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
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
PBO/AN0
AVSS
TEST
X2
X1
VSS
OSC1
OSC2
RES
NMI
P20/IRQ4/ADTRG
P21/SCK1
P22/SI1
P23/SO1
P24/SCK3
P25/RXD
P26/TXD
P27/IRQ0
P17/IRQ3/TMIF
P16/IRQ2
P15/IRQ1
P14
P13/TMIG
P12/TMOFH
P11/TMOFL
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
HD6433875A40H [16 ch]
HD6433875B26H [ 2-BANK]
IC8
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
P10/TMOW
VSS
V3
V2
V1
VCC
PA3/COM4
PA2/COM3
PA1/COM2
PA0/COM1
P50/WKP0/SEG1
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
0.001
C142
C143
0.001
C273
0.001
C274
0.001
CL IN
CL IN
VCC
CPU5
CPU5
CPU5
CPU5
CPU5
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
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
DTMF
PTTOUT
PTTOUT
LVIN
LVIN
TEMPS
TEMPS
ISENS
ISENS
SD
SD
VIN
VIN
R234
22k
LNJ310M6URA
DS2
LNJ310M6URA
DS3
LNJ808R8ERA
DS4
2SC2712
Q25
3.3k
1.5k
R205
R204
100
R155
560
R183
COM1
COM2
COM3
COM4
COM4
COM3
COM2
COM1
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
27
28
29
30
31
32
33
34
35
36
37
38
39
40
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
PB2/NA2
PB1/AN1
PB3/AN3
PB4/AN4
PB5/AN5
PB6/AN6
PB7/AN7
AVREF
VTREF
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
0.001
R5
R5
S5
S5
15p
C51
L13
1 H
12p
C53
C290
15p
4p
C65
10p
C67
18p
C66
FI2
CFWM450E [W], [M]
CFWM450G [N]
R82
1.2k [W]
1.5k [M]
2.7k [N]
C116
82p [W], [M]
100p [N]
C110
9p [W]
11p [N], [M]
R91
390k [W], [M]
100k [N]
O
I
1.5k
R85
R92
50k
R87
3.3k
R88
120k
C123
0.001
220p
C121
100k
R86
220p
C122
0.1
C120
1
C119
W9
W10
E
DET
F
0.01
C118
390
R84
TA31136FN(D)
IC2
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
CDBCA450CX24
X3
1.5k
R81
R253
470
C117
100k
R244
0.01
0.033
0.001
0.001
0.01
C115
C114
C113
C112
2SC2714
Q14
C111
100k
R80
R79
560
NOIS
MODCON
DISCIN
AFOUT
SD
DET
VCC
R5
S5
S5
5V
470
R131
10
C154
0.1
C147
W1
100k
R130
C209
0.1
C210
0.1
W2
D
C
UN911H
Q17
PTTOUT
MIC
PTTIN
MICIN
MICOUT
0.01
C132
100k
R104
1k
R177
150
R105
0.1
C133
NJM2902V
IC3c
10
9
+
+
—
—
8
220p
C134
150k
R108
10k
R109
0.1
C217
0.01
C124
0.0022
C125
0.0027
C126
C286
0.0022
3.9k
R176
27k
R93
1M
R94
1M
R95
IC3b
NJM2902V
6
5
7
47k
R96
R257
1M
100k
R166
BU4066BCFV
IC4
1
2
3
4
5
6
7
14
13
12
11
10
9
8
I/O
I/O
I/O
O/I
O/I
O/I
O/I
I/O
CONT.B
CONT.C
VEE
VDD
CONT.A
CONT.D
0.01
C131
VOL IN
R5C
MM
T5
5V
R42
1k
×
4
R41
47 [L]
100 [H]
L14
47nH [L]
82nH [H]
C62
18p [L]
9p [H]
C61
18p [L]
12p [H]
C60
0.001
C59
47p
C58
47p
C55
0.01
C57
47p
C56
0.001
5V
LVIN
0.001
0.001
0.001
0.001
0.001
0.001
100
R15
MA77
D3
22p
C25
1
R16
C24
C26
0.001
1.2k
R11
C23
27 [L]
82 [H]
R10
3.3k
R12
2SC4226
Q3
15p
C22
C9
15k
R163
33
R13
1k
1k
R162
VCC
2SC4081
Q28
R3
0.15
R161
XP6401
3
2
1
4
5
6
C10
10k
100
R2
33
C21
C20
C19
L27
EXCCL3225U
L26
EXCCL3225U
R7
R8
4.7k [L]
12k [H]
R9
10k
R255
82k
R1
L6
47nH
0.001
0.001
0.001
C14
47p
C289
0.001
C281
39nH [L]
33nH [H]
L23
17nH
L4
Y655LY-03K=P3
L5
C204
0.001
C288
33p
C15
2SK2596
Q2
100
R5
R4
C17
0.001
C280
24p
C13
0.001
0.001
0.001
C12
2SK2595
Q1
56p
C11
15p [L]
39p [H]
C287
12p [L]
10p [H]
C80
5p [L]
3.5p [H]
C278
C205
MA77
D1
J1
12p [L]
10p [H]
5p
C4
5p
C2
C8
0.001
12p [L]
15p [H]
C7
18p
C5
20p
C3
7p
C1
S5
Q37
0.01
C179
3.9k
R210
0.1
C73
100k
R52
10k
R53
0.001
C243
180k
R54
330k
R251
0.01
C75
R55
1k
C291
0.001
—
+
2
3
1
4
11
NJM2902V
IC3a
L15
L22
20p[L]
18p[H]
C76
22p
C52
MA862
D8
D29
MA8030
100k
R167
1
C128
C148
0.01
1M
R112
R125
27k
C215
0.1
R171
47k
RM
TONE
BEEPOUT
CTCSS
SIGOUT
10k 10k
R168 R169
R170
10k
R44
10k
0.01
2.2
C212
220k
180k
180k
R97
R98
R107
R113
68k
C213
C214
0.033
120k
R115
180p
C135
R114
22k [W], [M]
33k [N]
C137
0.027 [W], [M]
0.033 [N]
0.0039
C136
100k
R159
1k
R116
NJM2902V
IC3d
+
—
13
14
12
1.5k
R117
R119
300 k
0.001
C229
C284
0.0033 [L]
0.001 [H]
R249
47k
1.8k
R100
12k
R99
3.9k
R178
15
C129
AFON
AFONOP
VCC
2SB1132
Q15
68k
R145
1M
R120
XP6501AB
Q16
6 5
4
1
2
3
0.1
0.1
0.1
0.001
C139
1k
R121
C140
D26
DAN202U
3.3k
R123
2.7k
R122
C145
10
C146
C171
TA7368F
IC5
1
2
3
4
5
10
9
8
7
6
NC
VCC
NC
VIN
RIPPLE
POUT
PWGND
PREGND
PHASE
NF
10k
R126
0.1
C149
VOL OUT
220
C153
33
R127
10
C150
47P
C151
10
R128
0.047
C152
AF OUT
+
+
+
+
22
+
+
+
+
+
Q19
XP6501AB
C141
0.001
COM4
COM3
COM2
COM1
KS0
KS1
KS2
KS3
KS4
KR0
KR1
KR2
KR3
KS5
DS1
LM-1462B
D4
MA77
0.1 H
L7
0.1 H
L28
68nH
Q9
L24
2.7 H
R160
150
C6
47nH
47nH
1LO
R83
470
L25
1 H
+
+
+
+
+
+
+
47
C173
+
OUT
+
L3
LA-225
L2
LA-225
L1
LA-226
DTA144EU
TXC
ISENS
T4
SECTION 11 VOLTAGE DIAGRAM
M62354GP
IC10
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
DO
NC
AO5
LD
AO4
AO3
CLK
DI
AO1
DST
SCK
SO
MODCON
FRQCON
AO2
NC
GND
GND
VCC
VDD
AO6
0.01
C244
R106
1k
×
4
C241
10
C240
0.01
C239
0.01
C238
0.01
C237
0.01
C242
0.01
2SC4081
Q36
DUSF
CTCIN
CTDA
5
4
1
2
3
6
R217 1k
R231 10k
R230 27k
R229 68k
CTCSS
FRQCON
22
47
10k
L30
EXCCL
4532U
11 - 1
R19
390
R21
470
R23
680
C39
0.001
R31
1k
R175
1k
R151
47k
C46
0.001
C50
10
C37
2p [L]
1p [H]
D19
MA111
R30
4.7k
Q11
2SC4081
R28
100
R27
470
C211
0.001
C49
0.68
C54
0.001
C218
0.001
R34
10
R32
560
C48
2.2
R33
2.2k
C47
0.1
R35
2.2k
R25
8.2k
C42
0.001
C44
0.001[L]
0.0033 [H]
D6
MA77
Q32 DTC144EU
R26
8.2k
L12
2.7 H
C38
1.5p
Q7
2SC4226
D28
MA77
D5
HVU350
D13
HVU350
R29
1k
C36
0.001
Q8
2SC4226
R24
220
L11
MC152-E558CN-100024
C45
330p [L]
100p [H]
C41
39p
C29
0.001
C32
0.001
C33
0.001
Q5
2SC4215
R20
68k
R18
39k
R14
4.7k
R22
68k
C35
0.001
R17
4.7k
L10
0.15 H [L]
0.1 H [H]
L9
0.15 H [L]
0.1 H [H]
L8
C27
18p
C28
12p
C30
22p
C31
5p
C34
0.5p
Q6
2SC4215
Q4
2SC4215
C63
56p
X1
CR-575A
e
CR-576A
u
R45
100
C70
0.01
R50
100k
R150
50k
R51
470k
C69
33p
D7
HVU17
R48
10k
C72
1
R49
47k
C64
12p
D9
HVU350
R57
1M
C79
4p
C81
100p
D10
HVU350
C235
0.75p
[L] only
R62
1M
C87
0.01
C89
0.001
C90
0.001
R187
100k
C88
0.001
R61
47
C138
0.001
Q12 3SK239A
R252
100k
C83
1p
C85
120p
C86
9p [L]
5p [H]
L17
54nH
C277
1.5p
R59
180
L18
33nH
C91
8p
R222
10k
C99
0.001
R72
10k
R69
100
R68
4.7k
D11
HVU350
D21
HVU350
R66
1M
R64
1M
R70
100k
D12
HVU350
D22
HVU350
L21
47nH
C92
100p
C97
8p
L19
33nH
C98
5p
C102
15p
C100
15p
C101
56p
C94
2p
C96
100p
L29
0.1 H
R5
S5
C108
0.01
C107
0.001
C105
0.01
C104
0.001
Q13
3SK166
L20
0.47 H
C106
56p
R77
100
R75
220
C109
0.001
FI1
FL-270 [W]
FL-268 [N], [M]
R67
100k
R65
100k
C95
0.001
C93
0.001
T4
R63
100k
C84
T2
T3
R58
100k
C82
0.001
T1
0.001
R208
10k
R209
10k
C78
10p
L16
54nH
CP1
Q34
2SK880
R184
10k
R186
47k
R185
1k
C234
0.001
C233
0.001
C71
0.1
1
30
15 16
OPTIONAL
UNIT
GND
5V
VCC
MICIN
NC
NC
NC
OPT1
NC
OPT2
CCS
OPT3
CIRQ
GND
SO
SI
PTTIN
PTTOUT
MICOUT
MICMUTE
AFONOP
BEEPOUT
RXMUTE
DISCIN
SIGOUT
AFOUT
NC
NC
SCK
NC
IC-F3 only
IC-F3S=open
0.1
C292
PD3140GS
IC1
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
FO1
GND1
IN2
VCC2
XB
XI
XO
GND2
CP2
FI2
FO2
11-1 IC-F3/S
RX: 5.0V
9.6V
5.0V
2.0V
2.5Vp-p
5.0V
5.0V
TX: 5.0V
6.8 MHz
15.3 MHz
TX 174 MHz : 4.3V
RX 174 MHz : 3.6V
4.0V
3.6V
2.3V
4.8V
1.9V
0.9V
0V
0V
1.3V
7.0V
9.6V
9.6V
(SW ON)
LEFT SIDE
RIGHT SIDE
CENTER
Summary of Contents for IC-F3
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