Icom IC-FR4000 Service Manual page 71

C7 C5
4p [USA3], [GEN3], 4p [USA3], [GEN3],
[GEN7] [GEN7]
C1 L1 C4 5p [EUR3], [FRG3] 5p [EUR3], [FRG3]
J1 0.001 10nH 0.001 6p [other] 6p [other]
RX RFIN
RX ANT
3.1V
C227 L2
C2 C228 7p
5p [GEN2], 22nH
R1
4p [GEN2]
82k [GEN6]
[GEN6]
[EUR3],
C223
[FRG3] 12p [GEN2]
[GEN6]
R181 W31
C11 18p [L]
SA05C401N 6p [GEN2], [GEN6] [USA3], 5p [EUR3]
[EUR3], [FRG3]
[GEN3], [FRG3]
D1 C205
10p [other]
[GEN7]
7p [GEN2], [GEN6], [EUR3],
1SS226
CP17 [FRG3]
D3 R2
4p [USA3], [GEN3], [GEN7]
1SV284 100k
6p [other]
R163
R164
150
39 R126 100k
R165
J5
C120
150
R88
0.001
47
R112 C142
R85 IC5
1k 0.001
10K 5
1 TA75S01F
4
3
2
R87 C121
4.7k 0.001
C119 R84
R86
10k 0.001 10k
R64 R65 C104
18 18 100p
C123
R66
C230 7p
18
220 [EUR1], [FRG1]
R67
CP8 CP7
47
1.6V
CP10 CP9 C102 C103
C231
47 0.001
220 [L]
C232
220 [EUR1], [FRG1]
CP5
C118
L52
0.001
GND
12nH
RX OUT
V9V
C214
C215 GND
12p
12p LV
GND
CP6
C86
R93
0.001 47
C87
10
4 3
X3
CR-732 (12.800 MHz)
[other]
CR-758 (12.8 MHz)
[USA1], [USA3], [FR4100]
1 2
1.4V
CP11
CP13
R138 R139 R148
CP14
CP12 22k 22k 2.2k
C165 C166 R140
Q18
0.01 0.022 3.3k
2SK880
C167
2.2
R134 R171
1M 10k
CP1
2.9V
R172 C195
47k 0.001
Explanatory notes
Voltage line
RX line
C6 C8
C19
4p [USA3], [GEN3], 4p [USA3], [GEN3], 0.001
R4
L4
[GEN7] [GEN7]
3.3k
22nH
5p [EUR3], [FRG3] 5p [EUR3], [FRG3] C13 L32
3.5V
6p [other] 6p [other] 0.001 10nH C20
C23
56p 5p [H]
C12
L3
10p[GEN2], [GEN6] 3.1V
22nH C14 R9
[EUR3], [FRG3] C10 9p 10 TZC3R100A110R00
20p [other] TZC3R100A110R00 Q1
C206 C210 2.7V
2SC5337
W32
7p [GEN2], [GEN6]
7p [H]
[USA3],
[EUR3], [FRG3] 9p [L], [M]
[GEN3],
4p [USA3], [GEN3], [GEN7]
C18 C152
[GEN7]
0.001
R5 R6 470p
3.3k
R3 47
100k C224
12p [GEN2], [GEN6]
D4
18p [L]
1SV284
5p [EUR3], [FRG3] CP15
R9V R127 100k
C183 C212 C158
C122
100p 220p 0.001
0.001
Q9
2SC4703
C124 L27
Q8 4p 15nH
2SC4226
L25
15nH
R74
R71 L21
2.2k
R73
100 15nH
4.7k R75
R68
68
4.7k
C105
R69 R70
2.2k 0.001
68
R72 C106
10 0.001
+M9V
C186
100p
Q14
C134
L29
2SC4226
100p 15nH
R115 L30
100 15nH
C135
R116 R117
7p
4.7k 2.2k
R119 C137
R118 C138
68 0.001
10 0.001
+5V
L1 RVCO UNIT
1µH C1 C2 R13
0.001 100p 47
C14 C4
C3
J1 100p 0.001
47
GND
1
RX OUT L4
2 C22
0.1µH
V9V
1p [H]
3
GND
2p [L], [M]
4 7.9V
LV
C7
5 C17
GND
7p
6 TZC3Z060A110R00
D1
1SV284
D3
Q1
L2 1SV284
R2
3.2V 0.1µH 2SK508
470 L3
L9 C28
28nH
47nH
2p
[L]
[L], [H]
C5
D2 D4 22nH
0.001 1SV284 1SV284
[M], [H]
C85
0.001
CP2
C76
0.7V R40
0.1 10k
R92
10
D15 1SS268
R170 C82
0.001
4.7k
R169 C83
4.7k
10
R49
C78
10k
0.1
C77
R41
R168 0.1
10k
47k
IC4 MB15A02PFV1-G
1 R 16
OSCIN
2 P 15
OSCOUT
+6V
3 FOUT 14
VP
4 NC 13 C79
VCC
5 FC 12 10p
DO
6 LE 11
GND
7 DATA 10
R135
LD
8 CLOCK 9
100 FIN
C80
10p
C159 +5V
0.001
C81 R184 R185 R183
10p 5.6k 5.6k 5.6k
R166
Q20
47
C196 R157 2SA1576
0.1 100k
R156
33k
R159
Q21
1k
5.0V
2SC4081
C180
0.01
C181
R158 R160
0.1
10k 4.7k
12 - 2
C24
4p [other] C30
8p [GEN2], [GEN6]
C21 C22 4p [other]
[EUR3], [FRG3] 8p [EUR3], [FRG3]
4p 4p
C27
C28
10p [EUR3], [FRG3]
L6 L7
20p [other]
28nH [L] 28nH [L]
22nH [M], [H] 22nH [M],[H]
C207 3.1V
3.1V
15p [other]
18p [GEN2]
[GEN6] D7
D6 R10 R11 C222 7p
C221 7p
4p [USA3] 1SV284
1SV284 [GEN2]
100k 100k
[GEN3] [GEN2] [USA3],
[GEN6]
[USA3], [USA3], [USA3],
[GEN6]
[GEN7] [GEN3],
[GEN3], [GEN3], [GEN3], [EUR3]
[EUR3]
5p [EUR3] [GEN7]
[FRG3]
[GEN7] [GEN7] [GEN7]
[FRG3] [FRG3]
R136
L39 L23 L24 C115 68 [FR4000]
12nH 12nH 12nH 0.001 33 [FR4100]
C110 C184 C112 C113 C114 R81
0.001 12p 22p 22p 12p 100 [FR4000]
180 [FR4100]
C126 L53 CP16
6p 12nH
C216 C217
12p 12p
R76
150
L22
27nH
C108
0.001
R77 C109 C187
10 0.001 100p C188
100p
C84
100p
R1
47
7.1V
7.4V
C27 C16
100p 0.001
L6
R4
2.0V 22nH
C9
8.2k
10p
C8
1.3V
5p
Q2
C10
R3 2SC4226
0.5p
100
C11
5p
R6 R5 C13
L5
1.3V
3.3k 180 100p
10nH
+6V
+5V
R39
C133
X2
R42 C74 4.7k 0.001
FI5 10k 0.1 CR-729 C132
69.545 MHz 33p
CFWS455KGFA
C131
O I
D16 1SS268
0.01
FI6 CFWLA455FFA
G
[FRG1], [FRG3]
L31
CFWLA455EFA
0.68µH
R26
[other]
O I C151 4.7k [H]
10p 10k [L], [M]
G C73 R45
R43
0.1 10k
R44 10k C75
4.7k 0.1
Q7
2SC2712
R55 R54
C71
Q6
680k
22k 180p R60
R50 2SC2712 100k
C72
47k
180p C70
R56 0.1
2.2k
R52 R53
47k R58
100k
3.3k
R57
R178
NTCG16 4BH 103KT
100
C204
W: 0.5V
10 R167
N: 5.0V
390k
C211 R174
470p 100k
C203
0.1
0.0V
W15* W16* W17* W18* W19* W20* W21* W22*
C194
0.001
W15*, W16*, W17*, W18*,
W19*, W20*, W21*, W22*
[M], [H]
R14
100
C31 C34 IC1
L8
0.001
0.001 458DB-1011
GN2011-Q
3 4
C153
S2 D2
C35 2 5
5p
S1 D1
0.001
6
1
C26 G2 G1
TZC3R100A110R00
C208
15p [other]
R15
18p [GEN2], [GEN6] W1 W2
100
4p [USA3], [GEN3], [GEN7]
R19
5p [EUR3], [FRG3]
10
C29 0.001 C32 C33
0.001 0.001
L10
458DB-1011
L11
5.0V
R137
0.1µH
100 [FR4000]
180 [FR4100]
C116 C117 C42 C43
W3 W4
0.001 0.001
0.001 0.001
9.0V
M9V
IC7
W7
TA78L06F
6.0V
O I
G
C53 C52 C51 C50
10 0.001 0.001 10
C143
0.001
R36
680
L35
0.39µH
FI1
[FR4100] R35
FL-349A
L14 0.33µH L40 C48 4.7k
70.0 MHz
0.27µH [FR4000] 0.68µH 0.001
C191
R25
C46 C192
10p 8.2k
18p 5p 5.5V
[FR4000]
15p
[FR4100]
2.7V
C47
18p [FR4000]
15p [FR4100]
IC3
TA78L05F
O I
G
C60 C59 C58
47 0.001 0.001
R48
47
R62 C193
2.2k 0.1
C67 R61
10 4.7k X1 Q19
IC2
CDBC455KCAY24
DEA143ZU
TA31136FN
R153 3.3k [FRG1], [FRG3]1.8k [other]
1 16
OSCIN MIXIN
2 15
OSCOUT GND
3 14
MIXOUT N-REC R177
4 13
VCC N-DET 10k
5 12
IFIN RSSI
6 11
C62
DEC IFOUT R63
7 10
FILOUT QUAD 82p
1k
8 9 C202
FILIN AFOUT
0.001
C220 C65 C64
0.0033 0.001 0.001
C69 C68 C175
10
0.001 1 22
9
R175
5.6k 1.0V
R179 820k
R180 R176 C201
560k 10k 10
2
4
1
3
11
R173
IC8A
C199 C200
33k
0.001 0.001
NJM2902V
Power supply: DC13.6V
RX UNIT
Mesurement Frequency: RX 465.125 MHz
Internal resister of a volt meter: 50 kΩ/V
W23* W27*
L33
0.27µH [FR4100] W24* W28*
0.22µH [FR4000]
W25* W29*
L9
C41
458DB-1011
W26* W30*
C182
0.001
6p
W23*, W24*, W25*, W26*,
W27*, W28*, W29*, W30*
[L], [USA3], [GEN3], [GEN7]
C40
C39
0.001
0.001
R182
10
Q15
9.0V
2SB1182
R9V
C213
IC6
100p C140 C141 R120
W6 47 0.001 2.2k
TA78L05F
O I
G
C146 C44
R121
10 0.01
2.2k
Q16
R122
2SC4081
10k
R123
10k
M9V
R149
10
L20
0.68µH
Q3
2SK1771
C55
10p
R186
10
C56
R37
0.001
120
R187
NTCG16 4BH 102KT1
C225
0.001
L54
[EUR3],
68nH
[FRG3]
[L], [M]
3p
[L], [M] L41 J2
BLM21PG221SN1
GND
1
GND
2
M9V
W12 3
W8 M9V
4
GND
5
W13 SCK
6
SDTO
C57 W14 7
RPLSTB
8
47
GND
9
L42 R9C
R155 10
L43 RUNLK to LOGIC UNIT J1
4.7k 11
L44 W/NS
12
L45 RSSI
13
L46 RLV
14
L47 RVCON
15
C177
L48 TUNE
16
0.1
GND
17
L49 DISC
18
L50 SQL
19
GND
20
L51 NDET
21
IC8D GND
22
NJM2902V
12 L42 – L51
14 ACB1608M-600
13
ANT IN RSSI (CP18)
[dBµ] [V]
IC8C CP18
60 2.3
NJM2902V
8
50 2.3
C173 40 2.1
10
30 1.9
IC8B
20 1.6
NJM2902V
6
10 1.4
7
5
0 1.2
–10 0.9
[L]:LOW BAND, [M]:MIDDIE BAND, [H]:HIGH BAND