![background image](http://html.mh-extra.com/html/icom/ic-a110/ic-a110_service-manual_611506036.webp)
R34
1.8k
C46
Note
U : [USA/-1] only
0.01
C224
0.1
R288
1k
C390
0.1
D44
MA8051
R327
150
C156
0.1
C315
0.01
C44
0.1
1
2
3
4
5
6
7
8
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIN
MIXIN
GND
N-REC
N-DET
RSSI
IFOUT
QUAD
AFOUT
IC40
TA31136FN
16
15
14
13
12
11
10
9
C42
0.01
C43
0.001
Q3
2SC4215
C170 1
D50
1SV271
R369
10K
R30
18k
R437
1k
W27
C39
0.01
R368
18k
D30
1SV307
R232
4.7k
C333
0.01
R447
1.2k
C344
0.5p
C395
4p
FI1
FL-306
R448
680
C434
5p
R233
4.7k
D29
1SV307
C318
0.01
R228
2.2k
C255
0.001
L12
1.8uH
R27
1.8k
R229
2.2k
C36
0.001
R28
100
C37
0.001
R26
100
C149
0.001
R24
82k
Q2
3SK184
C552
3p
R21
47k
C533
3p
C33
3p
L11
LS-527
C32
27p
R20
220k
R19
220k
C30
0.001
C29
27p
D8
HVU350
C407
3p
C31
0.5p
D7
HVU350
R18
220k
C28
0.001
L10
LS-527
R17
47
C175
4.7
C27
0.001
R377
22
Q1
3SK184
R15
47
C26
0.001
C25
0.001
R13
100k
R14
560k
C329
0.01
C34
0.001
R12
270k
C24
0.001
R1
1
1M
C358
47p
L49
LS-527
D37
HVU350
C359
22p
R289
220k
C406
5p
D6
HVU350
C405
3.5p
L9
LS-527
C342
4p
L8
0.27uH
C21
10p
L27
0.27uH
C164
10p
C165
27p
C10
56p
R295
180
D38
1SV271
C366
0.001
L52
0.82uH
R9
220k
C22
22p
C360
0.001
R297
470k
Q73
2SC4081
D54
MA2S111
D53
MA2S111
C362
0.001
C9
18p
D2
UM9401F
L5
LA-244
C8
39p
D1
UM9401F
L4
LA-244
C7
22p
D3
UM9401F
C6
0.001
L3
LA-263
L2
LA-253
L48
LA-243
C4
1.5p
C2
5p
C330
9p
C5
22p
C3
39p
C1
33p
C331
15p
C235
0.01
C154
22p
C508
0.0012
L72
100uH
C48
0.1
R40
2.2k
R41
22k
R174
56k
R42
1.5k
Q5
2SC4215
D52
1SV271
Q4
2SC4215
C47
0.1
R370
10k
R38
1.5k
R36
22k
R35
100
C50
0.1
R371
10k
C328
0.01
C51
0.01
C509
0.0012
L73
100uH
C53
0.01
R46
100
C52
0.1
R49
390k
R48
56k
Q6
2SC4215
Q7
2SC4211
C234 1
C233 1
C55
0.01
R484
3.9k
R50
820
C54
0.01
R328
56k
R332
120k
C56
2.2
R333
10k
R334
560k
Q77
2SD1819A
C433
4.7
R355
2.2k
R331
220k
R329
120k
R330
TBPS1R154K475H5Q
Q78
2SD1819A
R356
68k
W51
R184
1M
1
3
5
2
4
+
—
R183
1M
C58 1
R478
82k
R479
NTCCM16084LH
R182
470k
C320
0.01
Q68
XP4315
3
2
1
4
5
6
SQLI
FISW
Q69
DTB123EK
IC11
NJM2107F
4
3
1
2
5
—
+
IC5
TA75S01F
R1
19
100k
R1
15
100k
R120
100k
C541
0.1
R454
4.7k
C542
0.1
R455
1.2k
R456
220k
R457
150k
+
—
1
3
4
5
2
IC51
TA75S01F
R234
22k
C258
0.01
C339
0.0027
R235
22k
C256
0.022
R236
22k
C257
0.0018
10
9
8
+
—
IC19c
NJM2902V
R237
22k
R238
22k
C259
0.015
C260
0.001
+
—
5
6
7
R239
22k
C261
0.022
R240
22k
C262
470p
+
—
2
3
1
IC19b
NJM2902V
R241
22k
4
11
C267
0.1
C265
0.1
R281
390k
R1
16
560k
R122
39k
C1
17
0.0018
R123
39k
R124
39k
C1
19
100p
+
—
1
3
4
5
2
IC31
TA75S01F
C121
0.01
C340
0.1
C268
0.1
2
1
3
4
6
8
7
5
IC22
TC4W53FU
W20
C229
0.01
R342
10k
—
+
14
13
12
IC19d
NJM2902V
C522
22p
R242
22k
C264
82p
R301
22k
C385
0.033
C349
0.0033
C309
0.1
2
1
3
4
6
8
7
5
IC16
TC4W53FU
C403
1
R476
1k
R338
10k
R225
10k
R223
33k
D27
M
A
111
PTTS
RMUT
AFMUT
SMUT
VCS
SCK
SO
BEEP
FISW
UNLK
PLSTB
SO
SCK
R/T
SQLI
SP
SP
8V
VCC
5V
TRC
TMUT
PSWC
CPU5V
MICE
MIC
PTT
PTTS
R224
1k
C341
0.01
C110
1
R108
1k
R1
10
10k
8
9
10
11
12
13
14
IC4
BA3308F
NC
IN2
NF2
NF1
NC
IN1
NC
OUT2
NC
VCC
ALC
NC
GND
OUT1
7
6
5
4
3
2
1
R113
33k
R111
100k
C1
12
15
R1
12
39
PTT
MIC
R336
1k
R444
10k
C404
0.47
R340
560
W15
4
3
2
1
5
6
7
8
+VS
GND
MUTE
GND
OUTPUT
SVR
—INPUT
+INPUT
IC37
TDA7233D
C379
4.7
C380 1
T1
ST-82(P)
C312
0.001
R380
10
C381
0.1
R322
4.7
C343
100
C374
0.001
C387
470
C384
0.1
Q74
2SB798
R325
270
D43
1SS352
Q75
2SC4081
C382
0.01
C383
3.3
R323
10k
R383
10k
Q86
XP4315
SMUT
R321
47k
C378
0.0022
R273
470k
C353
0.1
R114
NTCCM16084LH
R188 47k
D14
MA8036
C1
15
0.001
R1
17
1M
C1
14
0.47
Q33
XP4315
3
2
1
4
5
6
TRC
C420
0.01
R366
100k
R365
100k
R363
100k
+
—
1
3
5
2
4
IC42
TA75S01F
R364
1.2M
R367
10k
C153 1
R361
1M
C338
0.1
2
1
3
IC30
TC4S66F
1
2
3
IC28
TC4S66F
9
10
11
12
13
14
15
16
IC13
TC9260F
C128
0.1
R467
1M
C354
0.1
R381
15k
R378
10k
C431
100
DATA
STB
AGND
LD2
LD1
IN
OUT
VDD
CX
CS
AGND
LD2
LD1
IN
OUT
VSS
8
7
6
5
4
3
2
1
C126
0.1
R131
1k
R362
1.2k
C127
0.01
C177
4.7
3
2
1
R187
100k
4 5
R186
150k
R181
150K
R379
100k
R132
10k
Q80
DTA144EU
Q81
DTC144EU
AFMUT
C314
0.1
RMUT
5V
SO
SCK
VCS
SMUT
L86
ZBFS5101-PT
CP5
CP6
CP7
C416
15p
L54
82nH
C415
27p
C91
0.001
C95
27p
L19
39nH
R95
22k
C96
0.001
Q20
2SK3074
C97
0.001
L26
EXCCL3225U
L20
56nH
C101
33p
C98
15p
L22
47nH
C99
0.001
C521
4.7
R431
6.8k
R101
10k
R474
4.7
R99
39
R435
1.8k
C519
470p
C102
22p
L21
36nH
C100
0.001
C167
0.001
C168
0.1
C103
56p
L23
25nH
C418
0.001
C500
24p
L67
30nH
C217
39p
C501
22p
L35
17nH
C502
68p
C503
7p
L68
8.8nH
C504
150p
L69
17nH
C520
270p
R468
2.2
R219
39
C218
0.001
C413
1.5
R220
8.2k
R221
15k
C554
470p
R473
180
L70
LA-232
C242
82p
L71
LA-382
C241
27p
L50
LA-262
C316
22p
C15
22p
C20
0.001
C14
1p
L6
LA-235
C13
1p
C12
22p
Q21
2SK3075
Q51
MRF137
C17
10p
R3
3.3k
C18
0.001
C16
10p
R2
2.2k
C19
0.001
L75
0.82uH
D5
RB706F-40
D4
RB706F-40
L7
LW-25
C148
0.001
R1
100
C253
0.001
C138
10
C410
0.001
R152
100
R153
6.8k
C139
0.001
R423
100
C512
0.001
R424
100k
+
—
4
2
5
1
3
IC50
TA75S01F
C140
0.001
R148
22k
R151
3.3k
R149
4.7k
C141
0.001
R150 10k
W32
R425
22k
C513
10
R426
47k
C514
0.001
R427
33k
Q11
2SC4081
Q99
2SC4116
R430
12k
C516
0.1
C517
0.001
R429
10k
C515
0.001
Q98
2SA1586
R25
10k
C220
0.001
C419
0.001
DC2
L36
LR-89
C87
15p
R87
120
L17
0.12uH
Q42
2SC4226
R85
33k
R86
220
C85
0.001
C92
0.001
C251
0.001
R77
10k
C472
0.001
R79
150
R78
68
R80
68
C82
0.001
D11
MA77
D10
MA77
R76
10k
C556
24p
C555
24p
L87
56nH
C78
20p
R449
47
L15
0.22uH
Q15
2SC4228
R74
39k
C409
0.001
R75
150
C77
0.001
R415
1k
C74
18p
L14
0.1uH
C73
0.001
R72
68k
R73
270
C72
20p
Q14
2SC4403
W29
C290
0.1
R359
100
C417
0.001
C289
0.1
C325
0.1
C122
0.001
R63
2.2k
Q16 2SC4116
C123
15
C124
0.001
Q58 XP1113
L39
0.82uH
L43
0.82uH
R251
4.7k
R/T
Q79
2SK880
CP1
R59
50k
C61
0.001
R358
82k
R357
1M
C60 1
R62
1k
CP2
R61
2.2k
C59
0.1
L33
0.82uH
C537
0.001
D64
HVU350
L82
6.8uH
L40
MC152-
E558CN-
100025
R452
5.6k
C538
120p
C195
20p
R451
4.7
R450
10k
C193
0.001
R194
2.7k
C540
0.001
Q44
2SC4226
C192
10p
L83
3.3uH
R453
1k
C190
0.5p
C189
0.001
C391
0.5p
R192
68k
Q43
2SC4226
C188
33p
R65
15
R66
15
R67
15
R459
10k
R460
4.7
Q59
2SC4226
C548
0.001
L84
3.3uH
R458
1k
C279
9p
C539
10p
C546
9p
R461
5.6k
L41
MC152-
E558CN-
100024
C547
24p
C545
12p
L85
6.8uH
D65
HVU350
C544
150p
L42
0.82uH
C288
0.001
R256
2.7k
C430
0.01
R372
100
C421
22p
L55
0.33uH
C422
33p
C423
6p
R373
100
L56
0.33uH
C424
56p
R374
100k
C425
0.01
C428
0.01
L57
0.33uH
Q83
2SC4215
C426
20p
C427
39p
R376
560k
Q84
2SC4215
R436
33k
8
7
6
5
4
3
2
1
FIN2
BS2
BS1
STB
DATA
CLK
GND
FIN1
9
10
11
12
13
14
15
16
CP2
GND
LD
BO
XOUT
XIN
VCC
CP1
IC2
TB31207AFN
R475
4.7k
C213
0.001
C429
2.5p
L77
6.8uH
R64
100k
R218
4.7k
VCC
OUT
VCON
GND
1
2
4
3
X1
CR-657
C63
0.001
W47
C226
4.7
C214
0.001
C323
0.001
C506
33
R243
100
R193
470
C75
0.001
C324
0.001
R68
2.2k
C69
0.001
R70
470
R69
150k
C68
0.001
Q12
2SC4403
UNLK
SCK
SO
PLSTB
W49
W48
12
11
10
9
8
7
6
5
4
3
2
1
IN1
NF1
GND
MF2
IN2
RIP
OUT2
BOOT2
GND
VCC
BOOT1
OUT1
IC41
TA8208H
C398
0.22
C206
470
C402
0.15
R335 1
C388
22
C389
0.001
C399
100
C401
47
C400
47
C396
0.47
C397
0.47
C209
0.47
R208
100
C208
100p
SP
R209
47k
C530
0.0056
C529
0.047
R445
820
C321
0.001
C322
33
I
O
G
IC29
BA08FP
3
2
1
4
5
6
C129
22
C130
0.001
IC7
S-81350HG-KD
G
I
O
C131
0.001
C132
22
R126
10k
R127
10k
C133
0.47
R128
10k
Q22
2SC4211
C134
22
D15
MA111
Q23
2SB1132
BEEP
C317
0.01
Q72
XP4315
C347
0.1
Q53
DTB123EK
C326
2.2
C308
0.01
4
5
6
3
2
1
D1
D1
D2
D2
S1
Q1
S2
G2
Q100
FW215
R462
10k
R464
3.3k
C549 1
8
7
6
5
1
2
3
4
R463
470k
D66
SB07-03C
R466
10k
R465
10k
Q101
DTC144EU
Q70
DTB123EK
Q71
DTC144EE
C348
0.01
TMUT
G2
S2
S1
Q1
D1
D1
D2
D2
Q94
FW215
8
7
6
5
1
2
3
4
R420
2.2k
R419
10k
R440
10k
D62
SB07-03C
Q96
DTC144EU
R433
47k
Q97
DTC144EU
R418
470k
R434
10k
R441
3.3k
C518 1
R417
2.2k
8V
VCC
5V
C293
330p
C292
0.047
C212
470
C231
0.001
C232 1
L53
HK-08S070-1310
D26
DE5SC6M
C505
470
Q88
2SK2414-Z
20
19
18
17
16
15
14
13
12
11
BHO
BHS
BLO
BLS
VDD
VCC
ALS
ALO
AHS
AHO
1
2
3
4
5
6
7
8
9
10
BHB
BHI
DIS
VSS
BLI
ALI
AHI
HDEL
LDEL
AHB
IC43
HIP4081AIB
W44
W43
Q87
2SK2414-Z
C436
10
D55
SB07-03C
C437
10
C438
0.01
R386
150k
R387
150k
R389
2.7k
R388
4.7k
L60
10uH
SWC
SWE
TIM CAP
GND
DRVC
LPKSEN
VCC
COMPIN
IC15
MC33063AD
1
2
3
4
8
7
6
5
W35
C439
220p
C441
100
C442
0.01
R391
470
R390
560
R21
1
6.8k
R212
1k
+
—
—
+
8
7
6
5
1
2
3
4
IC45
NJM072BM
C446
330p
R393
15k
C447 1
R395
56k
R394
15k
W34
C443
0.1
C444
0.01
C445
100
R413
8.2k
R412
10k
R41
1
390k
R414
8.2k
R392
500k
R410
180k
R442
10k
R443
10k
R396
47k
R397
47k
C449
0.01
C448
100
5
4
1
2
3
R401
2.2k
C295
0.001
R400
1k
R399
1k
R398
2.2k
Q89
XP1501
2
1
3
4
6
8
7
5
IC48
TC4W53FU
PSWC
R432
56k
C507
0.1
TRC
R422
1M
R121
100k
R280
10k
C523
0.0022
W33
C536
0.1
C120
0.47
IC46
MC33063AD
SWC
SWE
TIMCAP
GND
DRVC
LPKSEN
VCC
COMPIN
1
2
3
4
8
7
6
5
C450
560p
R403
2.2k
R404
2.2k
R405
56k
R406
1.8k
FI6
BNX-002-01
1
2
3 4 5 6
C535
330
C557
0.01
Q90
2SA1471R
C531
220
CP4
CP3
EP2
+
—
2
1
W1
R471
22k
C553
4.7
R470
22k
Q102
2SC4081
R472
100k
PSWC
C301
47
C300
0.1
IC26
TA78L05F
G
O
I
C299
0.01
C298
33
Q82
2SC4081
D35
MA8330
R267
10k
L78
ZBFS5101-PT
BLO
BLS
VDD
VCC
BHS
BHO
11
12
13
14
15
16
17
19
18
20
ALS
ALO
AHS
AHO
2
1
3
4
5
6
7
8
9
10
DIS
BHB
BHI
VSS
BLI
ALI
AHI
HDEL
LDEL
AHB
IC47
HIP4081AIB
FI5
ACF321825-223
C454
22
C455
0.01
Q92
2SK2414-Z
Q93
2SK2414-Z
D57
SB07-03C
R407
150k
R408
150k
L62
HK-08S070-
1310
C456
0.47
C457
0.47
L63
HK-08S070-
1310
C462
0.47
C463
0.47
L64
HK-08S070-
1310
C468
0.47
C453
3.3
L80
ZBFS5101-PT
DC1
L81
ZBFS5101-PT
GN1
D56
DE5SC6M
C524
0.047
C575
0.47
C452
1000
Q91
2SK2414-Z
L61
HK-10S080-1210
TRC
TMUT
J7
J6
J5
C70
0.001
D36
DSA3A1
R31
1.5k
R37
56k
R43
3.3k
R45
56k
D51
1SV271
C327
0.01
C266
0.1
R1
18
120k
C1
18
0.0082
IC19a
NJM2902V
Q52
2SA1622
R226
100k
MICE
C1
13
10
C1
16
0.01
C550
0.001
C551
47p
a
5
4
4
5
C313
0.1
C337
0.1
IC6
TC4S66F
C250
0.001
C249
0.001
C277
0.001
1
2
3
5
4
W46
L31
82nH
W38
R446
8.2k
a
C11
0.001
R428
330
C135
0.001
C62
0.001
CPU5V
L65
10uH
SPE
SPE
to FRONT
Unit J1
EMIC
8V
EPTT
(EXT SP)
C543
0.1
C263
0.068
R8
C41
0.01
C40
0.001
R8
T8
VCC
8V
TUNE
R375
5.6k
8V
8V
VCC
5V
C558
0.001
C23
0.75p
T8
TMUT
C286
0.5p
R8
R71
47
C71
0.001
(W36)
R409
430k
W2
CHASSIS
J1
(ANT)
GN2
(W37)
L79
ZBFS5101-PT
C21
1
470
3
4
2
1
7
5
6
8
IC44
uPC311G2
C525
0.001
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
R8
IF AGC
IF AGC
R8
5V
FISW
2nd LO
R8
5V
2nd LO
R8
5V
R8
FISW
5V
RSSI
RF AGC
RSSI
5V
5V
5V
5V
5V
5V
5V
VCC
8V
AFOUT
5V
VCC
8V
MICE
8V
8V
VCC
5V
8V
VCC
SMUT
8V
AF
5V
SO
VCS
SMUT
8V
TRC
5V
5V
5V
5V
5V
MOD
MOD
2nd LO
T8
VCC
8V
R8
MOD
R/T
5V
R8
2nd LO
5V
T8
VCC
8V
R8
MOD
5V
VCC
8V
R8
MOD
5V
8V
R8
MOD
AF
8V
VCC
5V
1st LO
2nd LO
TUNE
1st LO
TX
VCC
VCC
T8
1st LO
TUNE
R8
RF AGC
TUNE
R8
TUNE
R8
RF AGC
RF AGC
R8
TUNE
R8
RF AGC
T8
T8
MOD V
MOD V
MOD V
MOD V
T8
T8
MOD
AF
5V
AF
MOD
5V
VCC
VCC
MOD V
VCC
VCC
MOD V
TMUT
VCC
8V
R8
8V
MOD V
VCC
8V
R8
VCC
MOD
AF
5V
VCC
AF
MOD
5V
VCC
AFMUT
VCC
AF
MOD
5V
VCC
VCC
MOD V
W3
W4
O
FI3
CFWM450D
2
1
3
4
6
8
7
5
IC18
TC4W53FU
W28
I
C230
0.01
FI4
CFG450H
5
4
3
1
2
2
1
3
4
6
8
7
5
IC17
TC4W53FU
C228
0.01
W25
5V
FISW
FISW
FISW
C319
0.01
C332
0.01
R438
470
C361
4p
C392
12p
FI2
FL-307
R439
470
R231
4.7k
D28
1SV307
R230
4.7k
D31
1SV307
C346
5p
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
W71
TX: 0 V
RX: 2.14 V
TX: 0 V
RX: 2.13 V
TX: 0 V
RX: 4.83 V
TX: 0 V
RX: 1.88 V
TX: 0 V
RX: 0.94 V
TX: 0 V
RX: 0.52 V
TX: 0 V
RX: 5.9 V
TX: 0 V
RX: 3.77 V
5.0 V
0 V
TX: 2.28 V
RX: 2.3 V
TX: 2.07 V
RX: 2.05 V
TX: 2.18 V
RX: 2.05 V
TX: 2.14 V
RX: 2.05 V
TX: 2.17 V
RX: 2.05 V
TX: 2.17 V
RX: 2.05 V
4.02 V
TX: 2.15 V
RX: 2.03 V
TX: 4.96 V
RX: 0 V
TX: 0 V
RX: 8.05 V
TX: 8.28 V
SQL Open: 8.3 V
SQL Close: 0.3 V
TX: 4.98 V
SQL Open: 5 V
SQL Close: 0 V
0 V
TX: 5.31 V
RX: 0 V
TX: 2.0 V
RX: 2.04V
TX: 7.95 V
RX: 0 V
TX: 0 V
RX: 6.04 V
TX: 0 V
RX 2.96 V
TX: 2.4 V
RX: 2.44 V
TX: 7.05 V
RX: 0.54 V
TX: 0 V
RX: 7.09 V
TX: 7.1 V
RX: 7.13 V
TX: 5.02 V
RX: 5.11 V
TX: 10.43 V
RX: 10.45 V
TX: 5.42 V
RX: 5.44 V
TX: 0 V
RX: 5.6 V
TX: 0.39 V
RX: 2.08 V
TX: 0 V
RX: 1.7 V
TX: 0 V
RX: 0.83 V
TX: 7.94 V
RX: 0 V
13.53 V
TX: 2.44 V
RX: 0 V
TX: 1.69 V
RX: 0 V
TX: 6.68 V
RX: 0 V
10.44 V
5.0 V
5.0 V
TX: 3.72 V
RX: 3.73 V
TX: 1.03 V
RX: 0 V
TX: 0 V
RX: 0.8 V
TX: 3.64 V
RX: 3.65 V
0 V
TX: 0 V
RX: 7.93 V
TX: 0 V
SQL Open: 4.9 V
SQL Close: 0 V
10.45 V
10.1 V
13.72 V
39.7 V
5.03 V
LEFT SIDE
RIGHT SIDE
10 - 2
10-2 MAIN UNIT