![background image](http://html.mh-extra.com/html/icom/ic-f3gs/ic-f3gs_service-manual_612560081.webp)
VCC
R5
5V
S5
MIC
VCC
CPU5
T5
5V
5V
R5
S5
VOLIN
VOLOUT
AFOUT
MIC
SP
VCC
CPU5
T5
R5
S5
5V
S5
T5
R5
C223
0.01
C224
0.01
C562
47 P
D
R131
470
Q17
UN911H
R130
100 k
C147
0.1
C554
470 P
PTT
C154
10
C
8
9
10
IC3C
NJM3403AV
C133
0.1
C677
470 P
C209
0.1
C563
47 P
R177
1 k
C125
0.0022
C124
0.01
C217
0.1
R176
3.9 k
R93
27 k
R109
10 k
C134
180 P
C665
47 P
C556
47 P
R104 100 k
R108
180 k
C132
0.0056
7
6
5
IC3B
NJM3403AV
R96
47 k
R94
1 M
I/O
1
O/I
2
O/I
3
I/O
4
CONT.B
5
CONT.C
6
VEE
7
I/O
8
O/I
9
O/I
10
I/O
11
CONT.D
12
CONT.A
13
VDD
14
IC4
BU4066BCFV
C286
0.0022
R95
1 M
C126
0.0027
R257
4.7
VCC
S5
R5
R159
100 k
R97
220 k
R98
180 k
C212
0.01
C213
2.2
C214
0.033
R113
68 k
R168
10 k
R505
1 k
R506
1 k
R169
10 k
R170
10 k
C128
1
R112
1 M
C136
0.0056
VCC
R178
3.3 k
C129
15
14
13
12
IC3D
NJM3403AV
R120
68 k
R145
1 M
R99
18 k
R100
2.2 k
R115
120 k
C135
180 P
R117
1.5 k
R116
1 k
D26
DAN202K
Q15
2SB1132 R
R126
10 k
C149
0.1
C146
0.22
C145
10
R122
2.7 k
4
5
6
3
2
1
Q16
XP6501 AB
C140
0.1
R121
1 k
C139
0.1
NC
1
VCC
2
NC
3
VIN
4
RIPPLE
5
NF
6
PHASE
7
PREGND
8
PWGND
9
POUT
10
IC5
TA7368F
R123
3.3 k
R128
10
C150
10
R127
33
C151
47 P
C152
0.047
C153
100
AFOUT
DS2
LNJ310M6URA
DS3
LNJ310M6URA
R204
3.3 k
Q25
2SC4116 GR
VOLOUT
VCC
CPU5
CTCIN
REMO
VOLOUT
AFONOP
AFON
AFOUT
TEMPS
R182
NTCCM20124AG473JCT
R181
100 k
R182
C231
0.1
PB0/AN0
1
P97/SEG40 75
AVSS
2
TEST
3
X2
4
X1
5
VSS
6
OSC1
7
OSC2
8
RES
9
NMI
10
P20/IRQ4/ADTRG
11
P21/SCK1
12
P22/SI1
13
P23/SO1
14
P24/SCK3
15
P25/RXD
16
P26/TXD
17
P27/IRQ0
18
P17/IRQ3/TMIF
19
P16/IRQ2
20
P15/IRQ1
21
P14
22
P13/TMIG
23
P12/TMOFH
24
P11/TMOFL
25
P67/SEG16
51
P70/SEG17
52
P71/SEG18 53
P72/SEG19 54
P73/SEG20 55
P74/SEG21 56
P75/SEG22
57
P76/SEG23
58
P77/SEG24 59
P80/SEG25
60
P81/SEG26 61
P82/SEG27
62
P83/SEG28 63
P84/SEG29 64
P85/SEG30 65
P86/SEG31 66
P87/SEG32 67
P90/SEG33 68
P91/SEG34 69
P92/SEG35 70
P93/SEG36 71
P94/SEG37 72
P95/SEG38 73
P96/SEG39 74
IC8
HD6433876B50H
R215
100 k
R216
100 k
C232
0.1
C195
39 P
BDET
R103
12 k
D14
MA77
TONE
CTCSS
SIGOUT
C123
0.001
OUT
1
VDD
2
VSS
3
NC
4
CD
5
IC11
S-80942ANMP-DD6
C197
0.1
R148
47 k
L33
39 H
VOLIN
R150
470
R164
120 k [F4GT] only
SCK
SO
T1
T2
T3
T4
VIN1
1
VOUT1
2
VOUT2
3
VIN2
4
VDD
5
LD
6
CLK
7
DI
8
VIN3
9
VOUT3
10
VOUT4
11
VIN4
12
VIN5
13
1
2
3
4
5
VOUT5
14
VOUT6
15
VIN6
16
DO
17
VDAREF
18
RESET
19
GND
20
VIN7
21
VOUT7
22
VOUT8
23
VIN8
24
IC10
M62363FP-650C
VCC
C148
0.01
R171
47 k
R125
27 k
1
2
4
5
3
IC6
TK11250BM [OTHER]
NJM2870
D
Q20
DTA144 EU
R135
10 k
4
5
6
3
2
1
Q19
XP6501 AB
Q18
2SB1132 R
R137
100
R516
15 k
TONE
BEEPOUT
VOLIN
VOLOUT
AFOUT
VOLOUT
AFOUT
CPU5
C215
0.1
VOLIN
VOLOUT
AFOUT
S5
VCC
T5
T5C
R5C
R5
R260
10 k
R261
10 k
MICIN
MICOUT
CPU5
Q22
2SA1577 Q
Q21
2SA1577 Q
MIC
SP
MIC
C164
0.001
R144
33 K
C163
0.001
C553
47 P
MC1
KUC3523-040245
1
2
J6
BM028-ASRS-TF
S3
JPM1990-2711R
EXT.MIC
PTT
SWITCH
VOL/ PWR
SWITCH
VOLIN
VOLOUT
OPT
MIC
A
(VR)
R142
100
C282
0.001
J2
HSJ1122-010010
C165
0.001
R143
TP76N00N-15F-10KA-2251
UP
VCC
HV
R132
470
R141
4.7 k
R139
4.7 k
C161
0.01
C174
22
R174
15 k
R140
100 k
R515
120 k
C669
47 P
C162
0.01
D27
RB706F-40
S5
T5
R5
DN
C160
0.01
C159
470 P
R134
2.2 k
R239
1 k
KR3
KR2
KR1
KR0
KS4
C158
22
S2
JPM1990-2711R
C155
10
C156
0.1 [OTHER]
0.01
D
C248
0.01
C679
47 P
D
C311
0.1
D
R221
390 k
C244
0.01
R220
330 k
R219
100 k
I
120 k [OTHER]
R275
4.7 k
D
only
R276
10 k
D
only
R218
100 k
I
120 k [OTHER]
Q36
2SC4116 GR
Q42
DTC144EU
D
only
R165
120 k [F4GS] only
R154
470 k
R152
470 k
C236
0.01
C144
0.001
C230
0.022
R228
10 k
R225
100 k
R147
12 k
C196
470 P
SCK
SI
SO
DAST
SCK
SI
SO
DAST
A0
1
A1
2
A2
3
VSS
4
SDA
5
SCL
6
WP
7
VCC
8
IC7
HN58X2432TI [OTHER]
HN58X2464TI
O
R525
1 k
C245
0.01
CLOUT
CLOUT
CLIN
CLIN
NOIS
NOIS
VIN
XIN
XOUT
RESET
CSIFT
R102
10
R101
1 M
C193
8 P
C194
12 P
X2
CR-663
R226
1 k
R232
1 k
SEG10
SEG11
SEG12
SEG7
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG8
SEG9
R155
100
R205
1.5 k
R274
10 k
D
only
R237
1 k
T5C
TXC
AFON
CTDA2
CTDA1
CTDA0
ESCK
ESDA
UNLK
R236
1 k
S5C
R5C
DUSE
OPV3
OPV1
OPV2
NWC
MMUT
RMUT
MMUT
RMUT
C564
47 P
R246
100 k
R245
100 k
CONT
R193
100 k
R194
100 k
R195
100 k
R196
100 k
R273
100 k
D
only
R272
100 k
D
only
R235
680 k
R241
1 M
R242
1 M
R243
1 M
C199
0.1
C250
0.01
R207
47 k
R234
22 k [OTHER]
10 k
D
Q35
2SC4116 GR
C227
0.1 [OTHER]
0.047
D
Q38
DTC144EE
OPT2
OPT1
CTDA0
CTDA1
CTDA2
CCS
OPT3
CIRQ
BUSY
OPT2
OPT1
CCS
OPT3
CIRQ
BUSY
R202
47 k
R203
47 k
R224
27 k [OTHER]
12 k
D
R227
47 k
C219
0.0082
C228
820 P
C216
0.1
R5
T5
R190
22 k
R191
22 k
R192
22k
R197
220 k
R198
18 k
R532
470 k
Q405
XP1213
R213
470
R212
68 k
C198
2.2
C200
0.033
C201
0.1
C222
0.1
3
2
1
4
8
IC12A
NJM2904V
R211
120 k
5
4
3
2
1
5
6
1
3
2
5
4
7
IC12B
NJM2904V
IC15
TC7S66FU
D
only
IC14 TC7S66FU
C221
0.039
C202
0.01
2
3
5
6
8
9
0
#
P0
P1
P2
P3
R238
1 k
R240
1 k
C249
0.01
KS0
KS1
KS2
KS3
S1
S1
JPM1990-2711R
1
4
7
C169
0.001
Q31
DTC144TU
EXT.SP
AFOUT
SP
CLONE
C173
47 [OTHER]
33
D
J3
HSJ1456-01-220A
C167
47 P
C168
0.001
C283
0.001
C675
470 P
BDET
DC
BDET
ANT
R160
100
L26
3225 H
VCC
T5
R13
10
R15
10 k
T5
VCC
R19
100
R21
220
R23
100
1
3
2
4
5
6
Q11
XP6501 AB
C233
0.001
CP1
(LV check ponit)
R30
2.2 k
C50
10
R185
1 k
Q34
2SK880 Y
R184
10 k
C234
0.001
R186
47 k
T5
S5
VCC
FRQCON
AFOUT
DISCIN
AFOUT
CPU5
DISCIN
AFOUT
LVIN
DBAL
CPU5
T5
R5
S5
S5
VCC
DISCIN
AFOUT
CPU5
T5
R5
S5
S5
VCC
DISCIN
AFOUT
CPU5
CPU5
T5
R5
S5
S5
R5
S5
VCC
DISCIN
AFOUT
CPU5
CPU5
S5
6P
CPU5
R5
S5
5V
R5
C60
0.001
C55
0.01
SCK
UNLK
PLST
SO
DEV
SQLIN
C291
0.1
R34
1 k
VCC1
1
IN1
2
ENB
3
CLK
4
DATA
5
T1
6
LOK
7
CP1
8
FI1
9
FO1
10
FO2 11
FI2 12
CP2 13
GND2 14
XO 15
XI 16
XB 17
VCC2 18
IN2 19
GND1 20
IC1
UPD3140GS
C48
1
C443
0.047
R33
3.9 k
R32
6.8 k
C54
0.001
C229
0.001
C211
4.7
R500
100 k
R208
100 k
R209
100 k
S5
R5
5V
R5
C27
5 P
Q4
2SC5107 O
R18
47 k
R465
33
C29
470 P
B
,
E
only
Q5
2SC5107 O
C32
470 P
R20
68 k
Q6
2SC5107 O
R22
68 k
C33
470 P
R17
4.7 k
C62
6 P
C225
0.0068
R200
47 k
R533 100 k
R77
100
EP13
BLM11B221SB
FI2
SFPC450E [OTHER]
SFPC450G
I
CFWC450F
D
R199
47 k
R504
330
L9
22 nH
C
27 nH [OTHER]
C61
6 P
L14
15 nH
R526
1 k
R527 1k
R528 1k
R529 1k
R41
47
L8
22 nH
J
,
C
27 nH
E
,
B
S5
D4
MA77
D3
MA77
C21
4.7
R12
4.7 k
C24
470 P
C26
0.001
C670
470 P
R14
100
C659
0.001
C14
0.01
except
A
Q3
2SC3585 R44
C205
0.001
C288
0.001
C204
47 P
L24
LQW1608A R22G00
D1
1SV307
C10
0.001
C9
0.001
C251
0.001
C252
0.001
C551
0.001
C285
24 P
R2
15 k
R3
15 k
R161
1 k
R162
1 k
D32
RB706-F40
D33
RB706-F40
S5
C8
0.001
R1
82 k
C666
4 P [OTHER]
5 P
J
C3
7 P [OTHER]
8 P
B
R210
2.2 k
C179
0.01
Q37
DTA144EU
R53
10 k
R251
330 k
R55
1 k
R530
100
R54
150 k
C243
0.001
C558
47 P
R163
10 k
R523
3.9 k
1
2
3
11
4
IC3A
NJM3403AV
D8
MA77
D2
MA77
C52
8 P
J
,
C
10 P[OTHER]
C73
0.1
R52
150 k
L15
14 nH
C75
0.1
C574
0.001
T4
TXC
W15
ERJ2GE-JPW
C76
6 P [OTHER]
7 P
E
8 P
B
C79
1.5 P [OTHER]
2 P
B
D29
MA8030 H
L22
12 nH
A
14 nH [OTHER]
R61
47
C90
0.001
C89
0.5 P
Q12
3SK239A
R401
100 k
C87
47 P
C88
0.001
R252
4.7 k
D10
HVU350B
R63
10 k
C84
47 P
R62
220 k
R59
150
R258
33 k
C100
8 P
L17
8.2 nH
L18
8.2 nH
C105
47 P
R72
47 k
R70
4.7 k
D12
HVU350B
D11
HVU350B
R67
10 k
R66
150 k
R64
220 k
C95
47 P
C557
47 P
C93
47 P
C559
47 P
C407
47 P
R65
10 k
R405
10 k
R404
220 k
D401
HVU350B
Q13
3SK239A
C98
22 P
L19
8.2 nH
L402
8.2 nH
L20
0.82 H
C111
0.001
R81
1 k
R80
120 k
C115
100 P
C307
0.001
D
R253
470
C107
0.01
C106
15 P
C104
0.001
Q14
2SC4215 O
Q41
2SC4116 GR
D
only
C109
0.001
F(DET)
C118
0.001
R84
47
R244
100 k
X3
CDBC450CX24
R85
1.5 k
C120
0.1
C119
1
OSCIN
1
OSCOUT
2
MIXOUT
3
VCC
4
IFIN
5
DEC
6
FILOUT
7
FILIN
8
AFOUT
9
QUAD
10
IFOUT
11
RSSI
12
N-DET
13
N-REC
14
GND
15
MIXIN
16
IC2
TA31136FN(D)
C117
0.001
R83
330
R518
1 k
C113
0.001
C112
0.001
R136
100
C114
0.001
C664
0.001
C66
7 P
C67
3 P
Q10
2SC4116 GR
R89
1.2 k
R90
680 k
C53
15 P
C51
10 P
C56
0.01
C65
4 P
L13
1.0 H
L25
0.82 H
P10/TMOW
VSS
COM4
COM3
COM2
COM1
KS4
KS3
KS2
KS1
KS0
KR3
KR2
KR0
KR1
S1
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
P65/SEG14
P66/SEG15
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
P81/AN1
P82/AN2
P83/AN3
P84/AN4
P85/AN5
P86/AN6
P87/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
LVIN
SD
REMO
PTT
CTCIN
CPU5
CPU5
CPU5
DTMF
MTONE
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
VIN
VOUT
CTRL
GND
NB
COM4
1
COM3
2
COM2
3
COM1
4
SEG1
5
SEG2
6
SEG3
7
SEG4
8
SEG5
9
SEG6
10
SEG7
11
SEG8
12
SEG9
13
SEG10
14
SEG11
15
SEG12
16
SEG13
17
SEG14
18
SEG15
19
SEG16
20
SEG17
21
SEG18
22
SEG19
23
SEG20
24
SEG21
25
SEG22
26
COM1
27
COM2
28
COM3
29
COM4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
COM1
COM2
COM3
COM4
30
DS1
LM-7045B
EP12
BLM11B221SB
LCD HOLDER
CLIN
CLOUT
BDET
MMUT
R5C
RMUT
OPV1
OPV2
OPV3
GND
OPT3
OPT2
OPT1
SIGOUT
MOWN
BUSY
AUX
MICIN
MICOUT
PTTOUT
PTTIN
SCK
SI
SO
CIRQ
CCS
REM
AFOUT
DISCIN
RXMUTE
RMUTE
BEEPOUT
AFONOP
MICMUTE
MMUTE
VCC
5V
GND
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16
to Optional unit
J5
AXN330C038
17
18
19
20
21
22
23
24
25
26
27
28
29
30
BUSY
DUSE
O
I
NOIS
SD
DET
NWC
T4
T3
T2
T1
1LO
DET
S5C
TONE
MTONE
DTMF
REM
NWC
FRQCOM
CTCSS
CTCIN
ESDA
ESCK
DBAL
DEV
DET
5V
CTCIN
DAST
SPEAKER
SP1
K036NA500-47
W1
OPC-963
1
2
PLST
PLST
C11
6 P
C572
47 P
CPU5
R510
1 k
R509
10 k
C674
47 P
R503
10 k
R507
1 k
R508
1 k
C672
47 P
L441
1.0 H
EP10
BLM11B221SB
EP11
BLM11B221SB
L443 BLM21P300S
R520 330
R521 330
C565
47 P
R223
120 k
C566
47 P
R519
1 k
C550
22
C560
47 P
C501
10
C567
47 P
C561 47 P
R524
NTCCM16084LH 223KC
CPU5
R153
470 k
C450
4 P
R469
2.7 k
I
C308
0.01
D
R271
47 k
D
only
R270
47 k
D
only
C555
3 P
A
5 P [OTHER]
6 P
C
R447
470
R68
10 k
R69
1 k
C99
0.001
R448
47
C455
470 P
R449
470
C495
0.1
L405
MC152-E558ANA-100050
R51
470 k
W10
ERJ3GE-JPW
C496
0.0047
R512
2.7 k
VCON
1
GND
2
OUT
3
VCC
4
X4 CR-662
C71
0.001
R49
39 k
1
3
4
5
2
IC13
TA75S01F
C63
10 P
R473
47
R50
390 k
R48
100K
C72
4.7
D5
HVU350B
R411
2.7 k
R417
3.3 k
R410
3.3 k
C413
7 P
W16
ERJ3GE-JPW
except
C
Q8
2SC5085 Y
Q7
2SC5085 Y
L12
4.7
C424
47 P
C426
0.001
C573
47 P
C412
6 P
C419
0.3 P
EP14
BLM11B221SB
EP15
BLM11B221SB
E
,
J
only
C416
0.001
C417
0.75 P
A
0.5 P [OTHER]
C673
47 P
C491
1
R416
3.3 k
C411
4 P
J
3 P
C
6 P
E
D403
HVU350B
D404
1SV245
C423
6P
C427
0.5 P
C422
7 P
L406
1.8 H
L407
4.7 H
R420
470
3
2
1
5
4
Q401
XP1214
C421
20 P [OTHER]
12 P
C
C571
47 P
C47
0.1
C473
47 P
Q402
DTC144EU
R421
10 k
R511
39 k
R422
220 k
C42
0.001
C218
0.001
C404
0.001
C403
47 P
R402
47 k
C19
0.001
Q2
2SK2973
C289
47 P [OTHER]
470 P
B
C552
0.001
W12
ERJ3GE-JPW
Q1
2SK2974
W11
ERJ3GE-JPW
W5
MJ-0.1
R522
10
R9
10 k
R7
100
C15
39 P [OTHER]
56 P
J
,
C
C18
470 P
C17
0.001
C13
0.001
C12
0.001
R458
1 k
R457
100
C492
10 P
C471
47 P
R446
56 k
R445
220
Q403
2SC5107 O
C452
10 P [OTHER]
8 P
C
R502
1 k
C472
47 P
L442
0.1 H
R517
68 k
I
180 k [OTHER]
R229
560 k
I
180 k [OTHER]
R230
180 k
I
56 k [OTHER]
R231
68 k
I
22 k [OTHER]
R105
470 [OTHER]
390
H
R44
8.2 k [OTHER]
10 k
H
R114
33 k [OTHER]
22 k
H
R107
82 k
I
150 k [OTHER]
C137
0.033
I
0.027 [OTHER]
0.012
D
R88
39 k
D
33 k [OTHER]
27 k
H
C121
220 P [OTHER]
330 P
H
,
P
R86
47 k [OTHER]
39 k
H
R87
1 k
H
2.2 k [OTHER]
C122
220 P [OTHER]
330 P
H
,
P
R82
3.9 k [OTHER}
1.8 k
H
C116
82 P [OTHER]
100 P
H
,
P
R79
180 [OTHER]
390
H
C110
20 P [OTHER]
12 P
H
,
P
R75
180
L21
22 nH
C
27 nH
J
33 nH
E
39 nH
B
C96
5 P
C
6 P
J
8 P
E
10 P
B
C97
5 P [OTHER]
6 P
E
8 P
B
R262
1
I
68 [OTHER]
FI1
FL-313
L
FL-321
G
FL-335
M
FL-336 [OTHER]
R464
560
I
1 k [OTHER]
R501
18 k
I
47 k [OTHER]
C92
5 P
C
6 P
J
8 P
E
10 P
B
C406
5 P
C
7 P
J
8 P
E
10 P
B
C94
1 P
B
0.5 P [OTHER]
C91
5 P [OTHER]
6 P
E
8 P
C
C405
5 P [OTHER]
6 P
E
8 P
B
L411
27 nH
B
22 nH [OTHER]
C31
2 P [OTHER]
3 P
E
C30
8 P [OTHER]
12 P
E
C28
8 P [OTHER]
12 P
E
R414
330 [OTHER]
390
J
,
C
470
A
C410
8 P
C
10 P [OTHER]
12 P
E
L11
MC152-E558ANA
-100051=P3
B
MC152-E558ANA
-100050 [OTHER]
C418
12 P
B
9 P
E
8 P
J
7P
C
C475
0.5 P
C
1.5 P
E
4 P
B
C414
9 P
B
8 P [OTHER]
L404
1.8 H
except
E
,
J
C486
5 P [OTHER]
7 P
B
C25
4 P [OTHER]
3 P
E
C22
9 P
C
10 P
B
12 P [OTHER]
L7
10 nH
C
12 nH
J
15 nH
F
18 nH
K
22 nH
B
L31
6 nH
B
4.1 nH
C
4.9 nH [OTHER]
L4
10.5 nH
J
,
C
14 nH
E
19 nH
B
L2
10.5 nH
J
,
C
14 nH
E
21 nH
B
L1
10.5 nH
J
,
C
14 nH
E
21 nH
B
C467
7 P [OTHER]
8 P
E
9 P
B
C86
3.5 P
C
4 P
J
5 P
E
7 P
B
C78
3 P [OTHER]
4 P
E
6 P
B
C85
5 P
C
6 P
J
7 P
E
10 P
B
R269
2.7 k
D
only
R413
18
C
only
C678
0.001
B
470 P [OTHER]
C668
3 P
HP
+
C663
0.047
R133 4.7
C662
0.1
R146
12 k
+
+
—
+
R534
1 k
Tx: 4.79 V
Rx: 0.00 V
4.89 V
Tx: 4.84 V
Rx: 0.19 V
4.84 V
4.99 V
CTCSS
1.08 Vp-p
Light ON
1.46 V
AF min 7.23 V
AF max 7.03 V
AFON
3.31 V
Tx: 0.00 V
Rx: 3.50 V
Tx: 0.00 V
Rx: 4.81 V
Tx: 0.90 V
Rx: 0.99 V
Tx: 1.33 V
Rx: 1.31 V
4.99 V
1.49 V
150 mVp-p
3.68 V
3.19 V
3.48 V
Tx: 1.30 V
Rx: 1.28 V
Tx: 1.80 V
Rx: 0.03 V
Tx: 2.10 V
Rx: 2.09 V
Tx: 0.04 V
Rx: 1.62 V
Tx: 2.29 V
Rx: 2.25 V
4.15 V
Tx: 1.66 V
Rx: 0.01 V
Tx: 1.81 V
Rx: 0.20 V
Tx: 4.53 V
Rx: 0.19 V
Tx: 3.64 V
Rx: 0.19 V
Tx: 0.00 V
Rx: 2.98 V
Tx: 0.05 V
Rx: 0.62 V
Tx: 0.05 V
Rx: 4.64 V
Tx: 2.20 V
Rx: 2.20 V
R 1.4 Vp-p ( a) 1 kHz, –1.5 kHz)
T 2.3 Vp-p ( a) 1 kHz, 15 mV mic input)
Tx: 2.20 V
Rx: 2.21 V
AFON
3.96 V
Tx: 0.00 V
Rx: 4.97 V
5.01 V
Tx: 0.00 V
Rx: 1.45 V
Tx: 0.05 V
Rx: 0.58 V
Tx: 0.05 V
Rx: 1.16 V
Tx: 1.77 V
Rx: 4.35 V
4 Vp-p
(a)1 kHz, 15 mV mic input)
Tx: 2.19 V
Rx: 2.20 V
Tx: 2.19 V
Rx: 2.20 V
2.5 Vp-p
( a)1 kHz, –1.5 kHz)
DTMF 2.2 Vp-p
BEEP 2.5 Vp-p
2.59 V
Tx: 0.03 V
Rx: 1.99 V
78 mVp-p
( a)88.5 Hz CTCSS, –0.35 kHz)
1.2 Vp-p
( a)88.5 Hz CTCSS, –0.35 kHz), 3.7 V P-P(DTCS)
Tx: 1.07 V
Rx: 0.07 V
DTCS
720 mVp-p
840
mVp-p
DTCS
2.8 Vp-p
3.2 Vp-p
Tx: 3.46 V
Rx: 1.52 V
CTCSS 3 Vp-p
NOTE
A
: L-band of ETS/CEPT version
B
: L-band
C
: H-band
D
: W/N-type
E
: M1 (440-470 MHz)-band
F
: M1-band of [GEN] and EIA/TIA version
G
: W-type of [GEN]
H
: W-type
I
: N-type
J
: M2 (470-500 MHz)-band
K
: M1-band of ETS/CEPT version
L
: N-type of [GEN] and EIA/TIA version
M
: N-type of ETS/CEPT version
N
: M1-band except W/N-type
O
: 100 channel version
P
: M (20 kHz)-type
SECTION 12
VOLTAGE DIAGRAM
12 - 1
Summary of Contents for IC-F3GS
Page 1: ...SERVICE MANUAL VHF FM TRANSCEIVERS ...
Page 39: ......
Page 40: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1V q 2000 Icom Inc ...
Page 41: ...SERVICE MANUAL UHF FM TRANSCEIVERS ...
Page 82: ......
Page 83: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1U 1 2000 Icom Inc ...