Icom IC-A220T Service Manual

9 - 2
*; Refer to “PARTS LIST.”
150K
R161
82K
R159
10K R157
0.001
C182
0.1
C183
1
C187
470 YXG
C190
0.1
C144
0.01
C153
12K
R155
100K
R152
270K
R100
270K
R98
0.01 C121
100K
R93
22 MSVD2
C126
ACF321825
FI2
0.47
C138
0.47
C120
0.47
C119
0.47
C114
BNX-002
FI1
1
B
2
CB
3
PSG
4
CG
5 6
470P
C26
0.001
C28 33P C33
68K
R71
2.2K R75
0.01 C101
56K R86
15K R85
15K
R91
10K
R105
330P
C111
100P C128
0.1
C116
0.01
C113
39
R64
100K
R65
100K R90
1M R84
0.001
C95
560
R11
0.82U
L5
0.001
C42
1K
R26
0.82U
L6
1K
R27
0.001
C43
4.7K R149
4.7K R148
FL-306
FI3
1
IN
2
OUT
3
GND
4
GND
56
FL-307
FI4
1
IN
2
OUT
3
GND
4
GND
56
10P C147
3P
C142
27P C148
12P
C143
18P
C155
C161 0.01
0.1
C191
0.1
C198
1K
R194
1.2K
R181
220K R197
82K
R201
2.2K
R202
100P
C170
120P
C194
120P
C193
0.0047
C179
0.0
1
C171
0.01
C208
0.01
C209
1.8K
R215
0.01
C213
10K
R213
10K
R214
100K
R208
22K
R212
22K
R205
1.5K
R209
1.5K R200
2.2K
R204
3.3K R199
10K
R193
10K
R207
56K
R210
56K
R203
100
R2110.1
C201
0.1
C206
0.1
C196
0.0012
C178
0.0012
C207
0.01
C204
0.01
C186
56K
R189
0.01
C175
56K
R184
390K R183
56KR179
0.01C172
10K
R108
100K
R112
15K
R107
2.2K
R151
1K
R56
1K
R55
NJM2904V
IC 3
V+
8
GND
4
330K R41
1
C82
1
C86
470P
C63
1M R68
1M R69
0.01
C58
MAIN UNIT
0.01
C59
0.1
C168
5.6K
R188
1K
R192
470 R185
100K R163
0.001
C174
1
C169
0.01
C212
0.1
C157
15K
R173
10K R167
100K R158
0.001C163
BA08FP
IC42
I O
G
TA78M05F
IC44
I O
G
0.1
C205
0.1
C210
470 YXG
C61
2.2K R36
2.2K
R39
0.47
C112
0.47
C106
TDA7233D
IC4
1
GND
2
MUTE
3
GND
4
+VS
5
OUTPUT
6
SVR
7
-INPUT
8
+INPUT
0.1
C41
0.001
C48
10
R15
4.7 R19
0.001
C24
470P
C195
0.0015
C189
0.0047
C184
39K
R198
39K
R196
3.3K
R191
68K
R186
10K
R178
15K
R170
10K
R171
BA08FP
IC6
IO
G
0.1 C67
0.001
C23 47P C22
100
R12
1K
R1
1K
R2
DAN217
D4
1K
R3
1K
R4
DAN217
D5
1K
R5
DAN217
D6
0.001
C11
0.001
C12
0.001
C5
0.001
C13
0.001
C6
0.001
C14
0.001
C7
0
R32
33K R42
39K R31
RD16 M
D15
1SV271
D33
1SV271
D35
TC4W53FU
IC43
1
2
3
4
5
6
7
8
TC4W53FU
IC45
1
2
3
4
5
6
7
8
2SC4211
Q21
NTCG16
R89
TC4W53FU
IC32
1
2
3
4
5
6
7
8
2SK2414
Q15
2SK2414
Q16
CFWKA450KHFA
FI6
I O
1
C255
18P C258
C2012C-R12G
L42
IC18
IC19
IC20
D12
DAM1MA33
22
R206
0.01
C202
ZBFS5105
L16
ZBFS5105
L17
B2P-VH
J1
1
2
HIP4081AIBZ
IC17
1
BHB
2
BHI
3
DIS
4
VSS
5
BLI
6
ALI
7
AHI
8
HDEL
9
LDEL
10
AHB
11
AHO
12
AHS
13
ALO
14
ALS
15
VCC
16
VDD
17
BLS
18
BLO
19
BHS
20
BHO
1 MSVA
C51
1/25V
100
C118
220 C73
100
C47
100U
L28
100U
L29
56K R87
0.047
C141
1SS193
D23
10K
R267
0.001
C275
560 R13
0
R177
3.3KR280
0
R175
AHY107
RL1
2.2K R53
1SS193
D18
0.01 C283
0.01 C284
100K R164
47
R168
100K
R291
4.7 C56
M 61545AFP
IC2
1
VIN1
2
VOUT1
3
GND
4
DATA
5
CLOCK
6
VCC
7
VOUT2
8
VIN2
M 61545AFP
IC14
1
VIN1
2
VOUT1
3
GND
4
DATA
5
CLOCK
6
VCC
7
VOUT2
8
VIN2
220
C287
220
C288
2.2KR20
2.2KR21
3.9K
R63
47 MSVD2
C203
CFWKA450KEFA
FI5
I O
4.7K
R293
2.2K
R294
33K
R295
100R187
HVU131
D20
0.1
C19
0.001
C27
0.001
C39
1.5U
L3
0.01
C75
0.001
C17
100
R10
1SV271
D2
5P
C31
0.001 C69
0.001 C65
0.01
C46
1U
L1
0.01
C76
HVU131
D19
0.39U
L7
4.7K R8
4.7K
R77
0.001
C68
5P
C38
0.1
C10
2.2K R73
1.5U
L9
0.001
C3
5P
C57
0.001
C18
4.7K R46
0.001
C74
0.001
C62
1SV271
D1
100K
R22
0.01
C77
100K
R45
0.001 C44
0.001
C30
100K
R49
5P
C20
0.001 C53
1.5K
R297
0.001
C36
0.001
C4
0.001
C2
4.7K
R74
1SV271
D3
15P C80
4.7K R50
330
R58
0.1
C45 0.01 C37
TA31136FNG
IC39
1
OSCIN
2
OSCOUT
3
MIXOUT
4
VCC
5
IFIN
6
DEC
7
FILOUT
8
FILIN
9
AFOUT
10
QUAD
11
IFOUT
12
RSSI
13
N-DET
14
N-REC
15
GND
16
MIXIN
BD9781HFP
IC31
1
VIN
2
SW
3
RT
4
GND
5
FB
6
INV
7
EN/SYNC
8
GND
0.0047
C180
LM2587
IC5
1
COMP
2
FB
3
GND
4
SW
5
VIN
470 YXG C66
2SC3357
Q45
1K
R298
10
R299
47
R300
22
R62
TA78L24F
IC54
IO
G 1.2K
R51
1.2K
R302
1.2K
R303
1.2K
R304
10
C32
/35V
0
R305
7E08N-330M
L24
7E08N-330M
L26
7E08N-330M
L25
0.01
C297
0.01
C303
0.01
C304
0.01 C306
0.1
C308
0.01
C309
0.01
C310
LTC6904IMS8
IC9
1
GND
2
SDI
3
SCK
4
SEN/ADR*
5
CLK
6
CLK
7
OE
8
V+
1K
R131
1
C162
0
R78
0.1
C103
22
R94
3.3K
R95
33K
R113
33K
R114
0.0047
C165
560P
C181
1
C238
0.01
C229
0.01
C231
0.01 C232
0.01 C234
0.01
C235
0.01
C237
100K
R17
4.7K
R23
4.7K
R18
4.7K R29
BA3308F
IC13
1
OUT1
2
GND
3
NC
4
ALC
5
VCC
6
NC
7
OUT2
8
NC
9
IN2
10
NF2
11
NF1
12
NC
13
INI
14
NC
0
R70
NJM2137M
IC16
1
2
3
4
5
6
7
8
47
R44
NJM2904V
IC52
1 2 3 4
5 6 7 8
33P
C319
56P
C318
18
R59
330
R66
33P
C320
R25
100K
33P
C64
82
R72
56K
R82
0
R322
CDBKB450KCAY24
X1
TA75S01F
IC22
1
2
3
4
5
JMS-1+
IC68
1
GND
2
IF
3
RF
4
GND
5
GND
6
LO
C2012C
L13
680N
27PC84
0
R16
470
R14
C2012C
L59
1U
0.1
C327
0.1
C328
100K
R331
100K
R368
5.6K
R343
1
C131
#E526HNA
L10
#E526HNA
L8
#E526HNA
L4
#E526HNA
L2
3.3
C60
0
R54
0
R61
3SK195
Q20
1.5U L60
150 R169
0.01 C166
1.2U
L61
1.2U
L62
56K
R165
0.01
C330
0.01
C331
2.2K R340
4.7K
R24
R341
100K
R342
100K
CP15S
CP3
CP15S
CP4
A
B
C
D
E
F
G
H
I
J
C2012C
L12
1U
1.5U
L49
L53
47N
L52
47N
NANOSMDC016F
S1
10 C332
0.001
C334
6.8K R344
0.1
C335
CP15S
CP9
CP15S
CP10
NJM2137M
IC25
1
2
3
4
5
6
7
8
100K
R289
39K
R332
TC4S66F
IC71
1
2
3
4
5
2.2K
R350
0.0047
C343
150K
R354
15K R288
180K
R353 0.1 C34510K R352
R351
22K
MA8051
D51
33
C342
0.01
C346
TC7S08F
IC74
1
2
3
4
5
CP15S
CP13
0.01 C296
0.1
C326
0.01
C333
1K
R355
0.001C349
LTC1069
IC7
1
AGND
2
V+
3
NC
4
VIN
5
CLK
6
NC
7
V-
8
VOUT
0.47
C140
2.2
C151
0.1
C134
100
R144
10K
R129
22
R130
100K
R356
CP15
HVU131
D27
HVU131
D28
0
R312
BD9001F
IC75
1
SW
2
NC
3
FB
4
INV
5
EN
6
RT
7
GND
8
VIN
DTC144EU
Q12
220P
C81
0.001
C325
0.001
C305
2SC4215
Q25
(Y)
2SC4215
Q26
(Y)
2SC4215
Q24
(Y)
1
C35
1
C34
1
C104
1
C280
220P
C132
1
C78
0.47
C93
0.47
C293
10
C211
/16V
10
C159
/16V
1
C54
1
C55
0
R282
0
R156
0.001 C156
4.7K
R279
TC4S66F
IC70
1
2
3
4
5
22K
R160
10K
R174
0.22C158
MA2S728
D29
2SJ402
Q11
C2012C
L50
560N
47
C79
/10V
0.01
C40
1
C107
CMS15 D50
CMS15
D32
2SD2351
Q51
3.3K
R358
10
R269
10
R270
1P C97
27K R283
1
C295
RB876W
D52
C160 0.01
0.1
C351
33
C350
0.001
C1
TMP-J01X-V6
J3
B2P-VH
J10
1
2
CP15S
CP16
B13B-PH-SM4-TB
J9
1
2
3
4
5
6
7
8
9
10
11
12
13
1415
8P C352
9P
C353
82P
C354
82P
C355
C2012C
L64
C2012 68N
C2012C-R27G
C2012C
L65
C2012C-R27
G
C2012C
L66
TC4W53FU
IC26
1
2
3
4
5
6
7
8
15K
R138
10K
R137
100K
R141
TA75S01F
IC76
1
2
3
4
5
100KR360
100PC356
0.001
C357
TC4S66F
IC67
1
2
3
4
5
0
R363
1
C359
0 R6
ST-82
T4
ERA-50SM
IC69
3
2
1
4
0.1
C360
10K R369
15K
R370
C2012C
L63
C2012 68N
0
R120
1
C362
10K
R361
15KR367
100K R371
10
C364
/16V
2.2 C363
2.2 C365
470P
C110 330K R43
1K
R40
820K
R47
820K
R48
10K
R37
10K
R33
1SV242
D10
1SV242
D11
1SV242
D13
1SV242
D14
820
R372
DAN217
D16
DAN217
D17
0.1C366
0
R374
0
R375
0
R376
0.001
C15
0.47
C100
/25V
0.1
C197
0.1
C367
0.1
C368
33
C29
0.1
C83
0.1
C369
0.1
C370
NJM2904V
IC 3
6
5
7
NJM2904V
IC 3
2
3
1
10
R357
0.1
C371
7E05NA
L67
HK-10S080
L23
0
R390
33K
R393
33K
R394
DTC144EU
Q55
TC4S66F
IC80
1
2
3
4
5
100K
R399
470K
R398
470K
R397
RSR025N03
Q59
RSR025N03
Q60
DTC144EU
Q61
0.001
C382
0.01
C289
0.01
C290
0.01
C291
0.01
C292
XP1214
Q48
1
2
34
5
10K
R402
NJM2902V
IC81
1
2
3
4
5
6
78
9
10
11
12
13
14
0
R403
0
R404
4.7KR405
470K
R406
4.7K
R407
4.7K
R409
470K
R408
470K
R410
27K
R411
0
R414
100
R415
0
R416
56K
R417
180
R418
82
R419
10K
R420
0.1
C385
4.7K
R421
1K
R422
1SS355
D53
0.1
C386
0.015
C388
0.1
C387
0.033
C389
0.1
C390
0.1
C391
0.1
C392
15K
R423
2SC4116
Q50
0R7
2.2K
R102
4.7K
R364
L48 47N
2SD2351
Q9
10K
R425
10K R426
NJM2902V
IC8
1
2
3
4
5
6
78
9
10
11
12
13
14
27K
R427
100KR428
0.1
C397
0.01
C393
0.01
C396
33K
R429
100KR430
0.1C395
0
R431
0.01
C394
TA75S01F
IC37
1
2
3
4
5
TA75S01F
IC38
1
2
3
4
5
0.01 C307
2SC4116
Q58
22N
L11
27PC402
560
R439
0.0018
C177
150
R440
2.2
C150
100K
R97
10K
R329
8.2K
R330
220K
R290
4.7K
R34
4.7K
R35
33K
R359
47K
R9
0.047
C403
HK3-S-T
CP2
HK3-S-T
CP5
HK3-S-T
CP11
CP15S
CP8
3.3K
R76
1
C72
0.001
C404
1000 C85
DF10SC6
D26
7B12HA-680 M
L18
7B12HA-680M
L19
7B12HA-680M
L21
MA8075
D54
SDA_VOL2
RXD_I
TXD_I
INCOM_I
SDA_VOL1
REM_I
PTT1_I
SP
VDD_ADJ
REG_C2
PON
R8 R8
AM/FM
SCL_VOL1 CLK DATA
FIL1
FIL2
R8
FIL1
ANL
NOISE
MIC1
RXD_I
TXD_I
PTT1_I
HP
SP
REM_
I
MIC2
AUX_IN
INCOM_I
8T1
SCL_VOL2
ICNTL
AUX_IN
VOX1 VOX2
PTT1_O
RXD_O
REM_O
T
XD_O
INCOM_O
MIC1
MIC2
RSSI
AM_DEPTH
AM_MOD
TUNE1
AM/FM
R8
MM
AM/FM
HP
SP_CNTL
BEEP
REG_C2
MODV
To PA UNIT
MOD V
2nd_Lo
AGC3
F M_DET_OUT
AM_DET_OUT
8C
TO REAR
(20K)
(9K)
8C
8C
8C
85nH
RX IN
RF_AGC
1st_Lo
85nH 85nH
85nH
5C
5C
5C5C
5C
8C
10C 5C
8C
8C
10C
10C
5C
+B
8C
40C
10C
AGC_oUT
5C
5C
DET
AGC1
MODV
8C 5C
RSSI
AGC2
BPV
TUNE
4.
00V
2.73V
0
.
00V
4.4
0V
0.00
V
8
.
06V
0
.00
V
AM:0.00V
F
M:1.23
V
A
M:11.16V
FM
: 0.03
V
7
.
3
1
V
0
.00
V
2S
2
.73
V
0
.00
V
U
0
8
.
09V
8.06V
5
.
0
7
V
0
.10V
8
.
06V
5
.
08V
0
.
03
V
8
.06
V
5.05V
0.03V
8
.1
0V
5.08
V
0
.10
V
C
AM:0.87V
F
M:0.00V
2.77V
7
.72V
4
.
0
4
V
0
.
00V
C2
0.00
V
4.
0
4
V
0
.00V
4
.
09V
A
A
4
.08
V
0
.00
V
2.1
5V
8
.08
V
6K
2.1
6V
.3K
4.
8
7
V
2
.
0
4
V
4
7.92
V
56K
0.91
V
2.
0
2
V
F
2.02V
AM
:
3
.
36V
FM
:
0
.
0
7
V
5.04
V
A
NL
O
N :0.07V
A
NL
O
FF:
5
.
0
2
V
SQ
L
O
PEN :0.07V
SQ
L
C
L
OS
E:4.55V
0
.
0
7
V
100
SQL OPEN :4.96V
V
SQL CLOSE:0.00V
0
0
.
00V
8.08
V
8
.09
V
8.14V
1
0
.
3
4
V
0
075
9
.67V
0.00
V
4.80
V
K
I
CS ON :0.04V
I
CS OFF:5.03V
2.4
3V
C
1
6.01
V
4.23
V
4
.80V
0
.
69V
0
.
00V
2
4.
6
2
V
23.28V
0
0
.
09V
1
0
.
3
4
V
4.80
V
39
.2
0V
9
.7
3V
4
.91V
4.
5
4
V
4.43
V
10
.4
5V
8
.1
0V
5
.
03V
AM
FIL
1
AM FIL2
I
I
I
I
I
I
I
I
I
I
I
I
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
5
5
5
5
5
5
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
VCC : 13.80 V
Freq. : 127.05 MHz
Description :
COMMON
RX
TX

Icom IC-A220T Specifications

General

Brand	Icom
Model	IC-A220T
Category	Transceiver
Language	English