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SECTION 11
VOLTAGE DIAGRAM
11 - 1
11-1 MAIN UNIT
Voltage line
NOTES :
Common line
TX line
RX line
VCC
S5V
+5V
C211
4.7
R102
22 k
R103 120 k
13
14
EP3
X2
CR–763
R104
220 k
R105 330 k
C149 0.001
C155 47 P
R94 150 k
C140
0.1
C154 47 P
C153 47 P
C152 47 P
C151 0.1
C213
0.1
BAL
REF
LVIN
T5V
12
R108 10 k
C157 10 P
C156 0.001
C158
0.1
C159 0.001
CP1
R101
1 k
C141 0.001
R100 47 k
C137 0.01
D16
HVC350B
L25
10.5 nH
R98 2.2 k
C148
10
C132 0.001
C143 0.001
R96
3.9 k
D
2.7 k
C
C146 0.47
C138 0.001
C144 47 P
R90
470 k
C150 1
D17
HVC350B
L26
7.5 nH
C129 0.5 P
R86 10
R114 100 k
C203 0.001
C202
0.1
D21
HVC350B
C134
12 P
C
15 P
D
C136 0.1
C135 0.001
C114
5 P
C
12 P
D
C115
4 P
C
10 P
D
C122
4 P
C
12 P
D
R77 10 k
C111 47 P
MP7
C103 2 P
C104 0.001
C139
0.1
EP1
L22
22 nH
R74 100 k
C110 470 P
R73 100
R76 100
C109 0.001
C112 0.001
R71 47 k
L21 33 nH
R70 10
C108 0.01
R68 10 k
C106 47 P
R65 100
C99 0.001
R67 100
R66 15 k
R69 4.7 k
D15 MA2S077
L41
33 nH
R75 150 k
C105 0.001
C117 470 P
C121
5 P
C
8 P
D
C120 470 P
C119 0.01
D22
HVC350B
C133
12 P
C
15 P
D
C145 47 P
D18
MA368
C130 0.047
C147
1
R109
56
C208 7 P
C206 7 P
C209
0.001
R117
4.7 k
D37
MA2S111
R93
1 k
IC4
MB15A02PFV–1
UNLK
SCK
SO
PLST
S5V
R118
4.7 k
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
CLOCK
DATA
LE
FC
NC
FOUT
P
B
FIN
LD
GND
DO
VCC
VP
CSCOUN
OSCIN
NJM12902V
IC5
R5V
C161
10 P
Q34
2SC4116 BL
0
3.1
C163
4 P
C166
3 P
R39 47
C169
0.1
C173 0.001
R115 1.2 k
R116 680 k
C165
0.01
C167
0.1
R107 100 k
MOD
LV
A
C162 56 P
C164 7 P
3 MULTI
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIIN
MIXIN
GND
N–REC
N–DET
RSSI
IFOUT
QUAD
AFOUT
R45
68 k
R43 47
0
1.1
R44
100 k
C168 0.1
FI2
ALFYM450=K
C69
470 P
C71 0.1
R40 150
C70 470 P
C66 0.001
C65 0.001
C63 47 P
NOIS RSSI
R46 470
C67 0.001
C75 10
R38 100 k
R36 1.5 k
R35 100
C59 0.001
C60 0.001
R37 470
R34 220 k
C56 22 P
R31 100
C57 0.001
C52 47 P
C51
0.001
R32
100
L11
15 nH
D
12 nH
C
C45
10 P
C
12 P
D
D10
HVC350B
R23
220
C43 0.001
C46 0.001
R21 220 k
C39
10 P
C
12 P
D
C36 0.001
R235 10 k
R50 100
R17 47
C37 0.001
L9 12 nH
R20 47 k
R19 82 k
C38 0.001
C339
2 P
D
0.5 P
C
C32 0.001
C333 47 P
R12
10
C33 0.001
C34 47 P
C25 9 P
L8
18 nH
C
22 nH
D
C24
22 P
C
24 P
D
L7
18 nH
C
22 nH
D
C21
22 P
C
24 P
D
C22 9 P
D4
HVC350B
D3
HVC350B
D5 MA2S077
C14
3 P
C
6 P
D
C367
4 P
C
5 P
D
C73 0.001
R10 1 k
R7
120 k
C80
0.0047
R4 10 k
C72 47 P
TMUT
T2
C78 0.001
C374 6.8
C76 0.01
C77 0.001
C15 0.001
D1
RB706F–40
C74 0.001
C371 0.001
R3 47
D6 MA2S728
C17 68 P
L30
33 nH
RSS1
EXOE
C281 0.1
R193 100 k
C229
0.1
R120
470
C227 0.01
T2
REF LV
A
T1 T2
BAL
CDCS
SO
SCK
D
AST
MOD
R192 100 k
D7
HVC350B
D8
HVC350B
C27 0.001
C28 0.001
T1
R14 10 k
R173 1.8 k
R207 220 k
D25
MA2S111
R16 100
R15 47 k
D9
HVC350B
C42 0.001
Q3
3SK299 U73
0
0.9
MIX
C41
5 P
C40 0.3 P
RF
Q2
3SK293
AMP
0
0.4
0
4.8
C35 0.1
0
4.4
C303
0.001
0
2.1
C302
10 P
R18
10 k
Q1
2SK1829
AGC
C30
7 P
R13 100 k
IC12
BU4094BCFV
EXOE
TMUT
MUT1
MUT2
R11
100 k
C23 2 P
C20
7 P
C19
0.001
L5
LQW1608A22NG00
R9 270
C79 0.22
R8 470 k
APC
R6 100 k
1
R5
10 k
0
4.9
D38 MA2S111
4
5
2
IC2
TC75S51F
2.3
0
0
1.8
R22 10 k
C49
5 P
L38
27 nH
R30 1 k
C53 0.01
C54 0.001
L12
33 nH
C364 6 P
C363 6 P
R25 4.7
C44
1 P
D
1.5 P
C
C48 22 P
C50 0.001
R29 150
C188 0.001
0
4.8
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CSFT
D
AST
MRDF
MDIA
UNLK
TEMP
RSSI
LV
IN
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CDEC
SDEC
NOIS
MTCK
MTDT
EXOE
EXSM
SCA
T
PLST
SCST
MSCK
MDIO
SCK
SO
SIGNAL
CDCS
T
ONE
MIC
CSFT
DAST
MRDF
MDIA
UNLK
TEMP
RSSI
LVIN
CDEC
SDEC
NOIS
MTCK
MTDT
EXOE
EXSM
SCAT
PLST
SCST
MSCK
MDIO
SCK
SO
SIGNAL
CDCS
TONE
MIC
IF IC
IC1
TA31136FN
C61
100 P
C62
82 P
X1
CDBC450CX24
0
4.6
Q4
2SC4215 O
C58
0.001
IF AMP
R33
150
FI1
FL–335
L44
4.1 nH
L3
0.4–0.9–2TL
C7
0.001
D2
1SV307
1.7
0
C6
0.001
R338
1 k
R2
1 k
1.4
2.2
C4
2.5 P
L2 14 nH
C2
2 P
D
0.75
C
LPF
J1
(CHASSIS)
L45
17.5 nH
L1 17.5 nH
C10
0.001
R97
1 k
L32
18 nH
C205
5 P
PLL
R95
1 k
Q17
2SC4116BL
C124
5 P
C
10 P
D
4.2
C127
6 P
C
9 P
D
R89 10 k
Q18
2SK880 Y
15.3MHz
1.2Vp–p
R106
82 k
R111
100 k
R113
390 k
S5V
R5V
R87
220 k
R85 6.8 k
RX VCO
C123
12 P
D
15 P
C
R84
6.8 k
R83
6.8 k
Q13
2SC4226 R25
R80
680
D
1 k
c
3.8
R79 6.8 k
R81 4.7
Q14
2SC4226 R25
R78
680
C
560
D
C113 0.3 P
C118
0.5 P
Q11
2SC5107 O
Q12
2SC5107 O
4.0
C102
5 P
Q10
2SC5107 O
D14
MA2S077
C98
10 P
C100
10 P
Q9
2SC5107 O
3.9
2.0
0
TX:+2.2dBm
RX:+4.2dBm
1.7
0
0
1.9
5
4
3
2
Q16
DTC144EU
1
Q15
XP1214
TX VCO
R5V
+5V
+5V
S5V
S5V
Q26
TPC6103
1
2
F1
0434003.NRP
E
ERBFE3R00U [OTHER]
T5V
C242 0.001
C375 10
R162 4.7 k
C231 0.01
R164 4.7 k
T5C
R5C
R170 470 k
C243 47 P
R169 100 k
C232 0.01
R166 2.2 k
1
2
3
6
C233
22
R165 10 k
C230 0.001
CTRL GND NB
VIN
V
OUT
5
4
C234
0.1
C235 0.01
C236
10
IC9
NJM2870
S5C
C237 0.01
C238 4.7
C239 0.1
5
4
1 2 3
R163 10 k
C241 0.001
C296 0.001
C295 0.001
3
2
1
4
5
6
R168 100 k
2403
C297 0.001
R167 270 k
R161 10 k
Q21
2SA1577Q
Q24
XP6501AB
Q22
2SA1577Q
Q25
DTA144EU
Q23
2SB1132Q
5.0
TEMP
R190 ER
TJ0EP473J
R191 100 k
C287 0.1
5.0
0
0
5.0
VCC
VCC
VCC
D12
MA2S111
IC7
EW–460
Q29
DTC144EU
C293 0.001
C298 0.001
C299 0.001
C300 0.001
C301 0.001
C294 0.001
I
O
G
11
C240 0.001
TONE
V+
GND
4
IC5
NJM12902V
CDEC
R186
470
SDEC
C226 0.001
C225
470 P
C224
4.7
IC5
NJM12902V
SIGNAL
7
IC5
NJM12902V
C223 0.1
R184 100 k
10
9
8
R183
22 k
R182
22 k
5
6
C222 0.01
C221 0.039
R181
22 k
R148 68 k
C180
0.1
R147
100 k
C220 0.022
R180 1 k
R154 120 k
C172
0.001
R152
560 k
R185 470 k
C92 12 P
Q8
RD01MUS1
C86
22 P
C
27 P
D
Q7
RD07MVS1
L4
0.4–0.9–2TL
C93
8 P
C
10 P
D
T5V
VCC
T5V
VCC
Q5
2SC3356 R25
A
: The scrambler IC is installed type.
B
: The scrambler IC is not installed type.
C
: High-band.
D
: Low-band.
E
: Intrinsically safe version.
0
1.6
C372
7 P
C
8 P
D
C370
0.001
R62 12 k
L19
8.2 nH
C
12 nH
D
C97 0.001
R61 47
C107 0.001
FI3
NFM60R20T152
C366 0.001
C368 47 P
C81 0.01
C82 0.001
L17 14 nH
C369 0.001
C18 0.001
R53 10
C83
18 P
C
39 P
D
MP1
C13
22 P
D
18 P
C
C16
22 P
C
24 P
D
C12
12 P
D
only
C11
6 P
C
only
R1 2.7 k
C9
1 P
C
4 P
D
C8
4 P
C
only
C292 0.001
C291 47 P
C5
3 P
C
5 P
D
R337 2.7 k
C3
7 P
C
8 P
D
C1
8 P
C
9 P
D
C365
3.5 P
D
2 P
C
R51 82 k
D39
RB706F–40
R52 100
R57
150
D
270
C
R59 4.7 k
C88 0.001
R58 33 k
C373 0.001
C91 470 P
R54 33 k
C84 0.001
R55 4.7 k
12
3
L20
15 nH
C
18 nH
D
VIN1
VOUT1
VOUT2
VIN2
VDD
LD
CLK
DI
VIN3
VOUT3
VOUT4
VIT4
VIN8
VOUT8
VOUT7
VIN7
GND
RESET
VDAREF
DO
VIN6
VOUT6
VOUT5
VIN5
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
IC6
M62363FP–650C
C228
0.001
R119
10 k
+5V
C170
0.1
R153 150 k
R151 68 k
C171 4.7
1
2
3
4
8
7
6
5
R133
18 k
C266 0.0022
R129 47 k
R134 33 k
C267 0.001
R157 10 k
IC11 TC4W53FU
R155
10 k
C265
0.001
SPLATTER
2
3
1
IC5
NJM12902V
R130
2.2 k
R131
2.2 k
R132
47 k
C264 22
C261 1
C262 1
C263
0.001
IC10 AK2346
R121
12 k
R122
390 k
R135
1 M
R124
33 k
R141
33 k
C271
0.1
IC13
BU4066BCFV
C256
0.0022
R127
33 k
R128
33 k
C257
0.1
C258
0.1
R126
1 M
X4
CR–765
C244 47 P
EP4
EP5
C253 180 P
C254 0.0012
C305 0.1
R194 10 k
R125 47 k
C255
0.1
C251 47 P
C252 0.0015
C259 22 P
SIGNAL
MTCK MTDT MDIO MADF
MSCK MDIA
C260 22 P
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
3.6864MHz
2.0Vp–p
AGNDIN
AGND
TXIN
TXINO
LIMLV
EXTLMIN
MOD
VSS
TCLK
TDATA
DI/O
RDF/FC
TEST
RXIN
RXINO
RXLPFO
RXAF
RXAFIN
EXPOUT
VDD
XIN
XOUT
DIR
SCLK
1
2
3
4
5
6
7
14
13
12
11
10
9
8
I/01
0/I1
0/I2
I/02
CONT2
CONT3
VSS
VDD
CONT1
CONT4
I/04
0/I4
0/I3
I/03
R195
10 k
A
only
C274
0.1
A
only
C275
1
A
only
C273
0.1
A
only
C276
1
A
only
Q27
DTA144EU
A
only
C277 1
A
only
IC14
FX214LG
A
only
15
14
13
12
11
10
22
23
24
1
2
3
C304
0.1
A
only
C290
0.1
C289 0.1
A
only
C279
27 P
A
only
SO
R139 100 k
B
only
MIC
SCA
T
SCST SCK
C280
27 P
A
only
C288
0.1
A
only
16 17 18 19 20 21
9 8 7 6 5 4
TXOUT VBIAS
RXIN HFO HBMI LBMI
NC P/S NC NC NC NC
RXOUT
IC
VSS
AT
LD/LTH
SCIN
TXIN
LFO/P
VDD
X/CLK
X
SDIN
8
7
6
5
1
2
3
4
IC15
TC3W03FU
A
only
R144 1 M
A
only
VCC
B
A
Q
CE
XT
XT
GND
4.00MHz
5.0Vp–p
R145
10
A
only
X3
CR–746
A
only
5.0
0
Scrambler ON
Scrambler OFF
4
3
2
1
1
2
4
3
VCON
GND
VCC
OUT
0
4.8
EXSM
SO
SCK
R5C
T5C
S5C
STR
D
CLK
Q1
Q2
Q3
Q4
GND
V+
OE
Q5
Q6
Q7
Q8
Q`S
QS
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
5.0
L29
1.8 H
L27
1.8 H
L28
1.8 H
L43
1.8 H
C126
18 P
D
15 P
C
L421.8 H
L40
0.82 H
L23
0.82 H
L13
0.27 H
1
5 4 3
2
L330.82 H
L35
0.22 H
38
37
J1
54104–3692
R123
82 k
L15
0.82 H
S1
C116 0.001
R92
120 k
R206
470 k
S5V
+5V
+5V
R5V
Summary of Contents for VHF IC-F50
Page 1: ...SERVICE MANUAL VHF TRANSCEIVER ...
Page 31: ...R601 VHF B6034B 9 3 VR BOARD TOP VIEW BOTTOM VIEW 9 5 ...
Page 37: ......
Page 38: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14007IZ C1 2003 Icom Inc ...
Page 39: ...SERVICE MANUAL UHF TRANSCEIVER ...
Page 71: ...R601 B6034B 9 3 VR BOARD TOP VIEW BOTTOM VIEW 9 5 ...
Page 77: ......
Page 78: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14010IZ C1 2004 Icom Inc ...