Rf Unit - Icom IC-R5 Service Manual

• RF UNIT

CP6
CP7
CP5
antenna
D100
connector
SV347 D76
J1
MA2S077
R247
C567 100
R246
0.1
6.8 k
R243
ATT
100 k
R3V
R241
1 k
C566
0.01
CP3
2.84 V
R327
C541 1.5 k R240
0.1 1 k
R235 C545
3.08 V
D68 1.5 k 0.01
C667 L88
1SV172
C542 R238
0.01 C563 3.3 H
0.1 R234 100 k
0.001
82
D66
MA2S077
R232
C570
330
0.001 0.15-30MHz
D69
MA2S077 C540 R233 1.92 V Q508 D65 C522 C523
R237
0.1 82 MA2S077 0.01 0.0015
XP4312
2.7 k
R236 C558
C525
10 k 0.001
0.01
C526
Q507 R225 0.039
C544
C543
2.2 k
25C5277 D2 0.001
0.001
L91 L85
3.9 H 3.9 H
C674
47 P
C546 L81 L82
D63
0.1 0.27 H 0.33 H
MA2S077
C511 C512 C516
D73
33 P 33 P 220 P
1SV308
C519
0.0015
R222
C513 C514 C515
2.2 k
82 P 150 P 100 P
L83
0.47 H
1.41 V
Q14 FH102
2.18 V
D74 L57 L58 C416 4
L59 L14 C13
1SV308 47 nH 56 nH 27 P
56 nH 56 nH 27 P
5
C9 C10
6
2.5 P 1.5 P C12
47 P
C8
C11 C67
18 P L70 R9 R79
22 P 33 P
0.10 nH 6.8 k 4.7 k
C69
118-175MHz 0.001
2.82 V
R216
2.2 k
C548
Q35
0.001
0.75 V
1.56 V
4
D3 C216 L3 L4
C19 L5 L39
1SV308 12 P 22 nH 22 nH
12 P 15 nH 39 nH
5
C218
2.91 V 6
1 P
C20
33 P
D75
C21 R14
C22 C151
1SV308 C23 R89
3 P 6.8 k
L2 7 P 4 P
5 P 4.7 k
33 nH
C135
0.001
330-470MHz
R239 C410
2.2 k 0.001
R95 470-833MHz
R101
2.2 k
C54 47 k
0.001
C32 C33 C36 L8 C145 L42
0.001 33 P 10 P 5.6 nH 470 P 5.6 nH
D11
1SV308
C35
10 P
C37
2.5 P C39
L7
4 P
27 nH
Q36
D13 D101 L9 L10 C665
2SC5231 C8
1SV308 MA2S077 33 nH 22 nH 100 P
C42
2.98 V C43
3.5 P C666
100 P
R99 R98
390 P
1 k 2.2 k R332 1.15 V
D31 1 k C141
Q514
MA132WK C41 L92 R18 0.01
C40
MD6 5 P 0.39 H 15 k
15 P
C55 R106
3 4
0.001 47 k
C671
2 5 30-118MHz
0.001
175-330MHz
1 6
0.09 V
1.9 V Q26
L13 1.23 V 2SC5277 D2
C46
C672 R334
5.6 nH
3 P
0.001 22 k
C49 C5 L43
C45
3 P 470 P 4.7 nH
0.01
0 V 1.24 V C48
C50 C52
C47 6 P
1 P 470 P
Q515 6 P R19
C51
47 k
DTC144EE R331
3 P
L11 L12
1 k
15 nH 10 nH R110
12 k
C675
833-1309MHz
0.1
ANTSW
VP
ATT ATT
R3V R3V
0.09 V
0.09 V ANTSW ANTSW
Q510 UMD6
C568 C571
3.12 V
3 4 R245 47 P 0.001
TRAC
22 k
2 5
0.06 V
B1C
1 6
1.90 V 2.89 V
Q509 C669
C569 C536
Q506
DTA144EE 0.01
0.1 0.1
2.98 V
DTA144EE
D67 HFC
L89
MA2S077
3.3 H
0.06 V
C562
R229 SHIFT
C534 0.001
C657 47 k
330 P L90
680 P
100 H C539
0.1 D72
C658
C535
1SV308
0.0022 R230 2.92 V
0.001 +3S
C524 D70
10 k
C537
0.01 MA2S077 Q505
0.1
2SC4215 0
L86 L87
0.47 H 0.68 H
0.3 V
1.0 V
C528
C527
R226
27 P
82 P
2.2 k R228
100
C529 C531
C530
150 P 180 P
330 P
C538
0.1
C517 D64
C518
180 P MA2S077
0.001
C520
C532
R224 Q504 0.06 V
0.01
R223 0.1
3.3 k
XP1113
2.2 k 2.92 V
L84
5 1 B2C
0.47 H
2
C561
2.05 V
4 3
0.001 B3C
C107
R78 330 0.22
C521
2.18 V 0.06 V
C243 0.1 C560
+3V
18 P 0.001
3 C118
0.001
2
C15 C16 C121 D25
1 P 0.001 0.001 1SV308
1
C14 L1 C108
0.001 47 nH 0.22
R10
L28 R11 R81
47 k
68 nH D1 D2 47 k 2.2 k
HVU350B HVU350B
2.98 V
C119
0.001
R8
C233
2.98 V
15 k
0.001
VHF3V VHF3V
PA805T
2.09 V
TRAC TRAC
R88
C550
3 330 C134
8 P C30 3.02 V
R15
0.001 R16
0.001
47 k
2 47 k C136 D29
7 P 1SV308
1
C28
C59 C58
0.001 D5
2 P 0.001
L61 D4
HVU350B
68 nH 3.02 V HVU350B
L60
R91
6.8 nH C155
2.2 k
5 P
C27
R13
0.001
15 k
3.12 V
UHF3V UHF3V
+3S
C150
0.001
800M3V 800M3V
C668
R100
C214 3.0 V 0.01
R102
0.001 2.2 k
12 k
L40
C139 D32
8.2 nH
10 P 1SV308
3.0 V
Q24
2SC5277 D2
1.14 V 0.36 V R3V
C138 R93
470 P 120
R323
2.4 V
120
R3V R3V
C142 D34
2.74 V
C664
0.001 1SV308
0.1
R105
IC11
68
R108 D71
0.41 V PC2746 TB
2.2 k 1SV308 6 R325 L56
100 6.89 nH
1
4
L41
C663
R6 C662
0.1 H
0.1
120 0.1 2 3 5 R326
R324
82
82
C44
0.01
2.97 V
300M3V
300M3V
2.98 V
C147
D36
2.5 P
1SV308
L44
R112
4.7 nH
2.2 k R231
2.98 V
4.7 k
G3V G3V
R20
C148 C414
120
470 P 0.001
ANTSW ANTSW
11 - 2
+3S
Q513
XP4601
L62
L68 L63 C165
10.5 nH
ACB1608M-600 7.5 nH 2 P
C180
D54
0.001 C182
R329 1SV286 0.98 V
0.001
100 k
R330
3.11 V/0.03 V
15 k
D46 R104
Q29
M2S077 4.7 k
DTC144EE
R188 C183
SHIFT 1 k 1.5 P
R160
2.7 k
0.69 V
C164
R123
0.001
+3S 47 k
+
C211 C163
R196
0.001 C162 0.001
150
10
0.69 V
C210
+
0.1
C258
R197
1.7 V
0.001
220
R156
2.7 k
R198
56 k C237
0.001
C256
0.001
Q43
2SC5231 C8
C257
0.001
R38 X1 CR-593
100 19.2MHz
R202
C84
+3V 220 C1
0.001 D18 C85
R39 39 P
HVU350B 18 P
100 k
3.16 V
IC3
PD3140GS
C86
R40
1 20 0.01
VCC1 GND1 100 k
2 19
C248
IN1 IN2
3 18 1
DATA VCC2
+
4 17
CLK XB +
5 16 R64 R65 C105
ENB XI
5.6 k
6 15 390 1
T1 XO
7 14
LOK GND2 C104
+
8 13
CP1 CP2 0.01 C423
9 12
R66
FI1 FI2 1
10 11 22 k
FO1 FO2
C106
+
C655 0.1
0.047
Q2
R200 2SK880 Y
C249
C2
5.6 K
0.01
0.22
Q45
R5
6.8 K R201 2SC4117 GR
10 K
C654
0.22 CP4 R41
R42 R43
100
PDAUL 100 100
PCK
PSTB
C89 C88 C87
47 P 47 P 47 P
Q37
2SC4617S 2.40 V
+3S
R154 L20 C81
3.04 V
R121 2.37 V
1 k 47 nH 0.001
Q6
330
2.40 V L69
1.54 V C209 FH102
22 nH
0.001 6 1
D53 L45
R67 R37 C207
MA2S111 10 nH
10 k 15 k 33 P C154 C251
5 2
10 P 4 P
+ + C208
4 3
C82 C79 47 P
C656 C78 C250 C252
10 0.001
8 P 0.33 8 P 8 P
R120 0.84 V
4.7 k
D17 R1
1.65 V
3.04 V
1SV305 330
C80
47 P
3.12 V
R3V
R204 10 k
VCC
R205
C201
C74
10 k
FI3 0.1
0.001 L17
C429 L73
FL-293
3.3 H
C435 0.01 2.7 H
0.001 1 2
IC10
D58 C430 R209
PC2757TB
R35
MA2S077 3 4 0.01 1.5 k
C427
15 k
3 4 R36
22 P
LO PS C18 L77 D61
2 5 C431 6.8 k
GND VCC 6 0.01 8.2 nH MA2S077
0.01
1 RFI
IFO
D59
R208
MA2S077 C507 2.63 V
R207
10 k
C432 150 P
R203 10 k Q5
0.001
56
2SC42150
IC1 PC2757TB C234
C71 FI1 EFCH266MKQP1
C202
0.001
1 3 P
6 0.1
RFI IFO I O
2 5 1.91 V
C153 C436
GND VCC
3 LO 4
0.1 3 P
PS
L15
R34
C70 47 nH L74
1 k
C206
0.001 47 nH
R220
3.5 P
15
R4 R221
330 330
D62
MA278
D20
MA6S718
D21
MA6S718
C264
0.001
C554
47 P
+3S
C166 C174 R169
R136
0.001 47 P 150
100 C235
2.47 V 0.001
R124 R170 R171
120 82 k 220
C158
0.001 IC4
0.76 V Q40 2SC5231 C8
6 PC2746TB
0.7 V
C156 R319 C244
R125 2.28 V
2.13 V 1.5 P 15 5 P
6.8 k 1 4
C178
C160 R320
0.001
2 3 5 0.001 15 R321
L80
Q28 33
R163
R162 5.6 nH
2SC5006
120
6.8 k
C510
1.68 V 2.46 V
2 P
Q30 C173
0.001
2SC5006
R128
C236
D42
10 k
0.001
MA2S077
C167
0.001
R151
R129
C190 C191 C192 1 k
1 k
L50
3 P 4 P 7 P
27 nH
C168
0.001
FM102
R132 Q31
R133 C194
22 k
4.7 k 4 3 1.07 V C193 39 P
C186 R210
D43 12 P
0.001 33
5 2 L52
MA2077
L53
18 nH
0.65V
6 1 12 nH
D44
MA2077 C188 R215
0.001 33
1.09 V
R134 R131 C195 C196 C197
R135
10 k 22 k 1.5 P 3 P 5 P
4.7 k 0.71 V
L51
C170 C198 C199
18 nH
R130 R147
0.001 9 P 27 P
1 k 1 k
L55
L54
10 nH
12 nH
C171
0.001
FSET
VP
3.12 V
R3V
Q501
DTA144EE
0.06 V
PDAUL
300MC
PCK 300M3V
PSTB
2.97 V
3.02 V 0.06 V
UHF3V 5 1 UHFC
2 0.06 V
4 3 VHFC
VHF3V
C503
0.001
0.06 V
2.98 V
Q502 XP1113
G3V 5 1
C504
2 0.06 V
0.001
800M3V 4 3 800MC
C505
Q503
0.001
3.00 V
XP1113
C424
0.01
VCC VCC
C90
C659
+
0.01
3.12 V 10 R159
R68 C241 R49
1 k
0.22 10 k
47 k
C102 C75
IC2 TA31136FN
0.001 0.001 FI2
16 1
MIXIN OSCIN CFWM450E
C239
15 2 D56
GND OSCOUT 0.01
R62 14 3 MA132WK I
N-REC MIXOUT
82
NOISE 13 4
N-DET VCC
RSSI 12 5
RSSI IFIN
11 6 R46
IFOUT DEC
15 k
C103 10 7
QUAD FILOUT R199
0.01 9 8
12 k
AFOUT FILIN
C98 R60
C101
AFOUT 470 P 100 k
10 P
C99
C94 W: 3.12 V
470 P C100
0.001
Q41 0.1
R59
DTA144EE
R30 A: 1.28 V
L21 1.5 k R61
C73
1.5 k
LS-510 47 k R31
0.001
1 k
R55
C97
3.3 k R56
C63
0.01
470 C64
W: 3.12 V 150 P
R54 15 P
C259 C242 R177
22 k
C96 R57 R116
100 P 0.22 R58 100 k
150 k
0.01 15 k
680
C93
C95
0.001
0.001
R179
15 k
W: 0.17 V
CP1
CP2
A: 0.62 V
Q1
R103 XP6501 AB
D57
10 k
MA728
A: 2.83 V
+
C200
C62
0.01
10
FMDET
NOTE
A: while receiving AM mode
W: while receiving WFM mode
+3S
C175
C172
47 P
0.001
D52
1SV308
C169
0.001
C176
47 P
D50
1SV308
D47
1SV308
3.03 V 3.13 V
R152 Q33
10 k
XP1113 0.06 V
C402 C417
4 3
DBL1 0.001 47 P J1
AXK6S40545P
2 +3S
3.03 V
ANTSW
5 1 DBL2 1
40
0.06 V
2
39
3
DBL2 DBL2 38
4
DBL1 DBL1 37
B2C 5
ATT
ATT 36
B3C 6
SHIFT SHIFT 35
TRAC 7
HFC
HFC 34
VHFC 8
BIC BIC 33 From/to
UHFC 9 LOGIC unit
J3
32
10
+3S +3S 31
11
VP VP 30
800MC 12
PDAUL PDAUL 29
300MC 13
PCK PCK 28
GC 14
PSTB PSTB 27
15
26
FMDET
16
+3V +3V 25
PSSI 17
GC
FSET FSET 24
NOISE 18
R3V R3V 23
EAR 19
AMDET 22
AM 20
WFM WFM 21
W: 3.09V
C676
C221
22 P
0.01
W: 0.18V
R50
10 k
W: 0.17V
WFM
C92
Q46 XP4312
0.01
O
4 3
5 2
D55 R172
6 1
MA132WK 15 k
R174
10 k
R335
47 k
C434 C203
0.1 0.1
A: 0.63 V
3.12 V
R3V
A: 1.24 V
C65 R26
A: 3.02 V
0.01 47 k
Q4
XP6501 AB
C66
0.01
A: 0 V
A: 0.17 V
AMDET
A: 0.17 V
A: 0.46 V AM
C433
0.001
R29
470k
R28
1 M Q44
C60
C61 R27
XP4312
0.01
0.001 22 k
A: 3.02 V