Icom IC-E91, Service Manual

Page: 46 / 50

12 - 3
12-3 RF UNIT
VOLTAGE LINE
Explanatory notes
TX LINE
RX LINE
COMMON LINE
J1001
J800
to MAIN
unit J703
470P C908 47P C910 220P C907 47P C911
0.1U L900
220P C906
PLLOUT
to VCO
unit J1
RF UNIT
0.1
C256
8P C208
0.001
C162
HVC376B D402
0.001
C850
15P
C103
0.001
C1006
220K R605
10N
L704
2.2K
R250
MA2S111
D705
RB060L
D1001
1SV308
D500
0.001 C335
18P
C511
180K R402
RD01MUS1
Q101
0.001
C114
TC75S51FU
IC953
1
2
3
4
5
0.001
C1005
0.001
C331
MA2S111 D404
1SV308
D700
27P
C601
0.001
C417
0.001
C1004
2P
C510
5P
C304
18N
L111
2.2K
R515
0.001
C171
180K
R401
0.001
C831
47K
R201
0.18U
L250
UNR9115J
Q900
2SC5006
Q301
22K
R655
5P
C453
3SK318
Q450
1SV307
D1
82K
R822
47K
R510
2.2K
R301
2SC5006
Q501
0.001
C330
1SV307
D2
0.001
C163
1SV308
D508
L601
68N
56K
R321
J1(CHASSIS)
1
2
100P
C808
150K
R974
10K
R160
0.33
C820
UPC2762TB
IC100
1
IN
2
GND
3
GND
4
OUT
5
GND
6
VCC
22P
C9
0.001
C1002
L650
15N
0.001
C22
180P
C207
0.001
C667
47K
R450
2.2K
R901
820
R423
47P
C261
HVC375B
D308
0.5P
C652
MA2S077
D304
EP100
1SV308 D707
0.1U
L306
100P
C465
L609
27N
6P
C466
330K
R156
22
C833
3.9K R507
22
C814
R661
0.001
C617
0.001
C706
2SK880
Q802
10K
R256
47K
R422
220P
C173
HVC376B
D602
470P
C174
0.001
C722
0.33U L203
820
R662
22K
R453
M62366GP
IC950
1
VSS
2
AO3
3
AO4
4
AO5
5
AO6
6
AO7
7
AO8
8
AO9
9
AO10
10
VDD
11
VCC
12
AO11
13
AO12
14
DO
15
LD
16
CLK
17
DI
18
AO1
19
AO2
20
GND
1SS362
D701
10K
R306
5P
C608
47P
C826
470P
C838
22P
C310
12N
L1
0.001
C515
18P
C37
10K
R820
0.33U L202
HVC375B
D704
33P
C204
18K
R703
0.1
C43
0.001
C169
22P
C305
47
R705
47P
C416
0.01
C251
120P
C309
5P
C312
15P
C517
0.82U
L10
0.01
C807
0.001
C45
1K R702
17.5N
L3
33P
C421
33P
C250
MA2S077
D306
0.01
C456
1M R154
47P
C472
EP900
1P
C664
0.001
C819
150K
R981
4.7K
R251
0.001
C901
3.3K
R854
5P
C656
0.001
C252
10K
R151
0.001
C133
L651
15N
6P
C12
10
R659
0.001
C904
HVC376B
D654
MA2S111
D851
220P
C830
1
C412
1SV325
D252
J1000
10K
R304
0.001
C505
10
R315
2.2K
R10
0.82U
L12
0.01
C327
22K
R314
27P
C704
HVC376B
D403
50N
L4
0.001
C716
0.01
C336
0.001
C119
XP1115
Q702
1
2
3 4
5
3.3K
R807
L450
82N
0.01 C316
0.001
C700
2.2K
R317
MA2S077
D303
24N
L104
2P
C853
0.01
C154
0.18U
L253
10P
C858
33P
C463
10N
L502
0.001
C513
0.001
C804
22
R100
220
R410
0.001
C1008
18P
C631
1
C603
47P
C840
150
R975
15P
C663
5P
C615
0.001
C724
0.001
C518
220
R713
0.001
C158
0.1
C212
150
R14
MA2S111 D652
0.001
C334
0.001
C626
NTCG10
R165
MA2S077 D254
10N
L850
0.5P
C462
0.01
C255
47K
R411
1SV308
D606
L605
47N
220P
C464
L13
18N
HVC375B
D502
47P
C263
0.22
C823
L402
82N
220
R514
L606
22N
L604
15N
0.001
C803
1
C153
0.12U
L309
0.001
C117
47K
R715
XP1115
Q452
1
2
3 4
5
1.8K
R158
100K
R458
1SV308 D9
0.1U
L400
220
R406
56K
R322
L608
27N
47K
R623
NTCG16
R162
HVC376B
D604
100K
R419
8P
C407
MA2S728
D1000
0.22U
L901
0.001
C501
22K
R166
22
C836
390
R2
100P
C810
15P
C622
5P
C18
BATT +
CP1001
DC-IN
3SK318
Q601
12P
0.001
C31
390 R308
47K
R708
UNR9211J
Q1
56N
L300
TC75S51FU
IC954
1
2
3
4
5
2.5P
C6
MA2S111
D603
1SS362
D7
0.001
C26
0.001
C415
56P
C202
1.5P
C711
39N
L303
1SV308
D203
MA2S728
D151
0.047
C155
L15
56N
2P
C650
180K
R652
8P
C129
100U
L204
10P
C102
1P
C47
0.01
C46
330
R712
0.001
C323
75P
C107
10K
R323
10P
C253
0.01
C258
3.9K
R508
1.5P
C16
0.1 C966
0.1 C965
1.5P C408
56K
R512
47P
C473
22P
C8
22K
R307
3P
C856
47K
R660
0.001
C405
4P
C668
100P
C419
L654
15N
0.01
C659
47K R709
220K
R455
180K
R614
0.001
C168
2SC5624
Q700
150
R316
MA2S728
D202
220P
C512
0.001
C214
0.001 0.001
C35
2SC4226
Q102
1SV308
D8
22
R710
2P
C609
220K
R656
0.12U L201
10
R459
3P
C705
HVC376B
D450
3.3K
R318
1SV325
D255
1 C150
47K
R651
1K R9
1SV308
D600
0.001
C311
0.001
C655
0.001
C113
2SK3476
Q100
100K
R976
MA2S728
5P
C701
UNR9115J
Q303
3SK318
Q400
0.001
C314
150
R15
0.5P
C611
220
R409
3.3
C821
10P
C621
47K R461
L600
22N
2SC5006
Q500
1SV308 D311
3.3K
R517
22K
R616
1
C454
0.001
C707
39N
L307
XP4315
Q105
1
2
3 4
5
6
100P
C209
5P C411
2.2K
R701
0.001
C413
0.5P
C420
47
R850
10P C29
UPC2757TB
IC900
1
RFI
2
GND
3
LO
4
PS
5
VCC
6
IFO
0.001
C164
150
R982
33P
C11
15P
C302
10N
L503
0.01
C23
XP6401
Q150
1 2 3
4 5 6
0.001
C507
1SV308
D655
180K R412
HVC375B
D505
3SK318
Q651
MA2S077
D309
220K R404
MA2S077
D250
EP104
EP103
0 R811
0 R815
10 R621
2SC5006
Q300
4P
C401
1.2K
R852
1.5K
R313
UNR9215J
Q704
10K
R254
12P
C651
MA132WK
D101
82P
C205
HVC376B
D605
47P
C337
0.1U
L310
0.15U
L251
1SV308
D11
22K
R711
2.2K
R8
47K
R622
UNR9215J
Q4
0.001
C418
8P
C633
27P
C909
100K
R970
0.001
C835
9P
C423
1.5P
C450
L452
68N
3SK318
Q401
1SV271 D3
220K
R153
220K
R167
0.001 C27
1SV308
D256
27P
C713
0.001
C320
100P
C409
22P
C7
220
R506
1M R150
0.001
C802
100K
R1001
47P
C265
2P
C5
47K
R320
0.001
C126
1K
R456
UNR9215J
Q3
220K
R157
10K
R159
10P
C257
220K
R618
47P
C470
1.5P
C17
18P
C38
0.001
C424
0.001
C604
390
R1
33K
R503
39P
C303
47
R962
L653
22N
12N
L505
0.001 C1000
100
R5
100
R610
MA2S728
D150
1
C41
220P
C20
NJM3404AV
IC150
1
2
3
4
5
6
7
8
220K
R416
4P C504
18P
C301
27 R819
2SC4215
Q200
0.001
C854
0.001 C36
3.3K
R319
56K
R821
47K
R707
47P
C262
0.01
C618
HVC376B D451
150K
R977
180K R603
0.001
C452
3.9K
R310
180K
R615
100K
R973
0.1U L200
MA2S111
D253
27P
C710
0.001
C48
2SC5006
Q850
0.01
C313
10 R609
1.5K
R102
0.001
C671
22K
R253
100P
C813
TC75S51FU
IC955
1
2
3
4
5
100P
C818
3SK318
Q600
HAT1026R
Q1000
5
D
6
D
7
D
8
D
1
S
2
S
3
S
4
G
47K R613
10K
R511
3.7N
L101
1P
C623
1
C39
2.7N
L700
1.5K
R106
0.001
C32
0.001
C40
L652
47N
0.01
C319
0.001
C717
1K
R6
L16
22K
R617
47N
L302
0.001
C108
MA2S077
D507
6.8N
L504
0.001
C851
0.001
C121
0.001
C806
22P C206
60N
L7
1K
R805
47K
R612
HVC375B
D506
1SV308
D706
6.8N
L500
L401
0.22U
18
R831
0.001
C660
180K
R451
39P
C100
0.001
C322
HVC376B
D650
1SV308
D850
0 R1000
0.001
C614
18P
C502
0.001
C213
22K R654
0.001 C508
1SV308
D509
0.001
C469
150K
R971
0.01
C811
CP1002
from
battery
pack
BATT -
0.001
C658
10K
R501
1K
R619
UNR9215J
Q151
0.001 C403
56N
L611
1U
L252
0.82U
L11
1SV271
D4
15P
C715
0.82U
L14
0.01
C812
10K
R202
6P
C130
MA2S077 D251
0.001
C503
47K
R518
0.01
C318
0.01
C254
MA2S077
D501
0.047 C157
0.001
C30
0.001
C506
680
R203
0
R407
47K R312
2.2K
R300
1SV308
D405
0.001
C461
47P
C708
470P
C475
10K
R324
5P
C2
27K
R704
2.2K
R302
0.001
C159
0.1
C211
UNR9115J
Q304
2P
C3
22 C952
15P
C613
470P
C175
0.001
C457
0.001
C702
33P
C260
47P
C125
10P
C718
100
R611
2P
C857
L603
15N
47P
C471
1k
R983
HVC375B
D305
100K
R152
1K R7
470
R806
10K
R504 47K R257
82N
L301
15N
L8
TC75S51FU
IC952
1
2
3
4
5
0.001
C468
0.01
C404
12P
C308
0.001
C167
2.2K
R500
EP1003
68N
L6
22K
R454
100
R818
0.001
C410
47K
R502
150
R978
1K R802
27P
C306
220P
C25
19.5N
L100
54N
L5
0.001
C714
XP1115
Q652
1
2
3
5
MA2S111
D503
12P
C519
0.001
C34
HVC376B
D452
47P
C634
47K
R509
15P
C610
47P
C307
22K
R415
2.2K
R462
47P
C720
1.5P
C10
12P C201
CD4094BPWR
IC951
1
STR
2
D
3
CLK
4
Q1
5
Q2
6
Q3
7
Q4
8
GND
9
QS
10
Q’S
11
Q8
12
Q7
13
Q6
14
Q5
15
OE
16
V+
1K
R657
HVC375B
D703
5P
C500
XP1115
Q800
1
2
3 4
5
UNR9115J
Q201
3.3K
R400
47K
R403
100P
C422
MA2S077
D301
LMX2313
IC800
1
NC
2
CPO
3
GND
4
FIN
5
FINB
6
OSCIN
7
NC
8
OSCOUT
9
FOLD
10
CLOCK
11
NC
12
DATA
13
LE
14
GND
15
CE
16
VUC
17
NC
18
VCC
19
FL
20
VP
5P
C325
47K
R421
1K
R417
4P
C627
0.001 C161
EP1002
1
C616
100P
C400
2SB1132
Q803
2P
C653
39N
L308
MA2S111
D453
6.8K
R101
2.7N
L702
220
R457
18
R832
95N
L107 220P
C839
0.39U
L610
HVC376B
D401
0.01
C900
33N L506
UNR9215J
Q104
HVC376B
D651
3.3K
R204
1SV308
D400
47K R311
1.5P
C14
2SC5006
Q701
MA2S077
D504
2SC5006
Q250
1SV308 D6
0.1
C951
150
R972
0.001
C832
0.001 C259
47K
R516
0.01
C809
18P
C509
10 C1007
0.001
C317
180K
R602
0.15
R161
15N
L501
1K
R804
220
R658
2.2K
R900
0.001
C474
0.15U
L405
0.001
C459
5P
C600
0.1
C123
0.01
C903
220
R620
1SV308
D300
XP1114
Q2
1
2
3 4
5
0.1U
L701
180K
R452
2.2K R200
6P
C131
100P
C451
180K
R653
1
C402
0.01
C414
15P
C666
15P
C625
0.15U
L254
0.001 C170
0.001
C455
EP1000
2P
C106
0.1
C822
22K
R414
220
R418
2.2K
R258
0.001
0.01 C606
39N
L304
10
R513
L607
15N
1SV308
D454
MA2S728
D310
L602
27N
1
C109
100
R3
0.001
C607
5P
C4
47K
R650
22K
R163
1SV308
D100
470P
C725
47K R460
2.5P
C1
0.1U
L305
0.001
C326
4.7N
L851
180K
R413
1SS362
D10
1.2K
R808
UNR9115J
Q302
47P
C264
MA2S077
0.1 C950
0.001
C324
5P
C315
HVC375B D307
47K
R252
3.9K
R309
15N
L9
0.001
C721
0.001
C166
EP1001
47P
C338
0.001
C300
10
R420
330K R155
1
C210
10
R408
220P
C172
0.001
C703
68K
R851
0.1 C964
0.1 C960
0.1 C962
0.1 C967
0.1 C963
0.1 C961
2P
C321
XP1115
Q451
1
2
3 4
5
HVC376B
D601
15N
L507
2.2K
R303
820
R624
330
R255
2P C612
1K
R803
XP1115
Q251
1
2
3 4
5
15N L102
L403
82N
17.5N
L2
10K
R800
6P C203
2.2K
R700
47K
R604
15N
L103
HVC375B
D702
22P
C13
12P
C514
1SV308
D302
220 R607
2.2K
R853
0.001
C329
0.001
C122
L451
82N
47K
R205
0.001
C44
0.001
C619
EP102
L404
68N
1K R4
0.001
C516
0
R706
10P
C662
47P
C333
0.001
C425
2.2K
R855
C215
1K
R405
UNR9115J
Q703
0.001
C709
47K
R305
2.2K
R714
0.001
C332
0.001
C132
100P C460
47K
R105
220P
C672
3.3N
L703
100K
R980
HVC376B D653
2.2K
R824
1SV308
D200
0.001
C837
0.001
C620
15P
C654
470P
C328
0.001
C176
0.001
C177
5P
C28
220P
C339
10K
R325
1.5N
L105
0 R168
0 R169
5P
C852
33P
C104
0.1
C136
0.01
C118
39N
L112
0.47U
L109
15P
C124
EP105
9P
C101
150 R114
150 R113
12K
R108
2.2K
R118
0.1U
L110
47
R111
82
R112
82
R110
39
R104
0.001
C110
3.9N
L106
47P
C112
22P
C137
1
C657
0.001
C661
VBUAC
VAUBC
VHFC
UHFC
UHFC
U
A
VCOC
V
A
VCOC
BCVCOC 80MC IOSTB1 CK TUNEB1 TUNEB2 BCC 50MC B1C V
A
UBC
TUNEA1 TUNEA2
VAUBC
VBUAC
LV
REF
UNLK
CK
PLLDATA
APLLSTB
+5.5V
BCVCOC
UAVCOC
VAVCOC
VSHIFT VSHIFT
VVCO3
BCLV
MOD
VCC
VCC
VCC
VCC
MOD
BCVCO3
VLV
PLLOUT PLLOUT
ULV
LOOUT
UVCO3
RFB
RFB
BAGC
300M800MC
VCO3V
RFR3
BCC
50MC
B2C
B1C
AAGC
VCC
HV
80MC
RFR3
B2C
TUNEA1
AR3C
VHFC
TUNEB1
+5.5V
TUNEB2
TUNEA2
+5.5V
IF
A
+3V REFC VSHIFT UHFC VHFC B2C AT
T
PSET
AR3C
DSET
PSET
DSET D
ASTB1
DA
T
A
DA
T
A
CHG
TTEMP
T6
ATT
18
R830
MA2S111
D801
4.7K
R823
D800
1U
L801
2SD2216J
Q804
C834
10K
R801
+3V
UNR9115J
Q801
47K
6P
C602 C630
12N
BAGC
IFA
RFR3
HV
PLLDATA
CHG
APLLSTB
300M800MC
VBUAC
AR3C
+3V
+5.5V
AAGC
CK
DATA
LV
TTEMP
UNLK
IOSTB1
VCO3V
MOD
REF
REFC
T6
DASTB1
RFB
BAGC
IFA
RFR3
HV
PLLDATA
CHG
APLLSTB
300M800MC
VBUAC
AR3C
+3V
+5.5V
AAGC
CK
DATA
LV
TTEMP
UNLK
IOSTB1
VCO3V
MOD
REF
REFC
T6
DASTB1
D201
1
RX: 3.31V
145M
TX: 0V
RX: 0.63V
145M
TX: 0V
RX: 0.64V
5.54V
B 145M
TX: 0V
RX: 3.34V
TX: 0V
RX: 3.26V
B 145M
TX: 0V
RX: 0.64V
A 145M
TX: 0V
RX: 3.62V
A 145M
TX: 0V
RX: 0.63V
B 435M
TX: 0V
RX: 0.63V
A 435M
TX: 0V
RX: 3.25V
B 435M
TX: 0V
RX: 0.65V
435M
TX: 0V
RX: 3.29V
435M
TX: 0V
RX: 3.26V
A 435M
TX: 0V
3.37V
3.44V
RX: 0V
TX: 2.96V
RX: 0V
TX: 5.23V
RX: 0V
TX: 5.77V
RX: 7.39V
TX: 7.20V
RX: 7.40V
TX: 7.17V
435M
RX: 5.33V
145M
RX: 5.05V