Icom IC-A220T Service Manual

9 - 3
*; Refer to “PARTS LIST.”
BU2099FV
IC48
1
VSS
2
NC
3
DATA
4
CLOCK
5
LCK
6
Q0
7
Q1
8
Q2
9
Q3
10
Q4
11
Q5
12
Q6
13
Q7
14
Q8
15
Q9
16
Q10
17
Q11
18
SO
19
OE
20
VDD
4.7K R245
BU4081BF IC46
1 2 3 4 5 6 7 8
9 10 11 12 13 14
220 R262
0.001
C261
330 R264
2SC4215
Q38
10K
R247
1KR237
0.01
C230
27P
C244
1K R252
0.001
C253
100
R248
82
R253
2SC4226
Q41
100P
C220
0.001 C236
100P
C216
10K
R238
1K
R217
33K R259
0.001
C224
0.01 C228
0.001
C266
0.001
C384
0.001
C233
82K R254
1.5K
R258
0.001
C265
100
R233
27P
C241
2SC4215
Q35
0.01
C245
82
R257
0.001
C252
12K
R218
15P
C274
7P
C239
10K
R216
100
R256
DAN235E
D36
DTB113ZK
Q30
DTB113ZK
Q32
47KR277 4.7KR278
0.001C282
0.1
C214
4.7 C254
22FLT-SM2-TB(LF)(SN)(M)
J7
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
2SC4226
Q33
68K R230
0.001 C273
0.01
C117
4.7K
R104
0.01
C96
0.001
C108
12P C105
2.2K R263
22P
C125
2SD2351
Q42
2SK508
Q6
15
R219
0.001
C109
33P
C222
0.5P
C87
2P
C115
0.01
C167
0.01
C124
KV1770S
D22
4.7K
R103
2SK508
Q5
2SC4215
Q3
0.001 C268
0.001
C89
18P
C139
0.001
C90
0.001
C227
0.01
C99
470 R227
10K
R101
33
C269
2SC4215
Q2
12P
C130
15P
C92
18P
C91
0.5P
C88
KV1770S
D21
82N
L31
18P
C102
10K R99
ADF4110BRUZ
IC47
1
RSET
2
CP
3
CPGND
4
AGND
5
RFINB
6
RFINA
7
AVDD
8
REFIN
9
DGND
10
CE
11
CLK
12
DATA
13
LE
14
MUXOUT
15
DVDD
16
VP
110N
L36
47KR301
DTC144EU
Q46
0.01
C298
0.01
C299
0.01
C300
0.01
C302
100K
R313
100K
R314
100K
R315
1KR316
1KR318
1KR317
0
R319
L51
220N
3P
C312
10PC313
0
R79
0.001C316 0.001C315 0.001C317
1M R320
TC03C100A
C127
TC03C100A
C136
2SB1302S
Q29
10K
R28
39P
C218
270
R92
330
R88
10P
C94
5PC98
680
R106
39P
C137
220
R109
22K R222
10KR327
1K R328
C2012C
L47
120N
CR-860
X2
1
VCONT
2
GND
3
OUT
4
VCC
0.47
C215
/25V
0 R336
L32
C2012C
120N
100K
R232
A
B
C
D
E
F
G
H
I
J
CP15
S
CP7
CP15
S
CP6
56N
L57
135N
L34
L35
47N
L56
47N
CP15S
CP1
4
0.001
C347
10K R292
4.7KR323 4.7KR324
4.7KR246
TC4028BF
IC49
1
Q4
2
Q2
3
Q0
4
Q7
5
Q9
6
Q5
7
Q6
8
VSS
9
Q8
10
A
11
D
12
C
13
B
14
Q1
15
Q3
16
VDD
15
R220
15
R223
39P
C225
56P
C219
33
C240
TMP-S01X-C1
J8
2979
MP1
DTC144EU
Q53
1K
R377
100KR118
10
R378
M62364FP
IC78
1
VIN1
2
VOUT1
3
VOUT2
4
VIN2
5
VDD
6
LD
7
CLK
8
DI
9
VIN3
10
VOUT3
11
VOUT4
12
VIN4
13
VIN5
14
VOUT5
15
VOUT6
16
VIN6
17
DO
18
VDAREF
19
RESET
20
GND
21
VIN7
22
VOUT7
23
VOUT8
24
VIN8
0R379 0R380 0R381
DTC144EU
Q54
47KR383
10K
R384
10K
R385
4.7
R386
0.1C373 0.1C374
0.01
C376
1
C375
0
R387
0R388
33P
C377
L68
22N
0.01
C378
TA75S01F
IC79
1
2
3
4
5
47
R389
1
C379
0.001
C380
B6B-PH-SM4-TB
J2
1
2
3
4
5
6
78
0.001C381
0R400
2.7K
R401
0.1
C383
4.7K R424
CP15S
CP17
CP10S
CP18
0
R432
0.1
C398
TA75S01F
IC36
1
2
3
4
5
33K
R433
100K
R434
33K
R435
15K
R436
0.1
C400
0.1
C399
TA75S01F
IC82
1
2
3
4
5
47K
R437
100K
R438
0.01
C401
R382
0
1U
L45
1.5U
L58
10U L15
10U L20
10U L22
10U
L33
10U L37
10U L38
10U
L39
10U
L40
HK3-S-T
CP1
CP15 S
CP12
SEND
RX
TX
CLK
DATA
SCL_VOL1
SDA_VOL1
REG_C2
PTT1_O
INCOM_O
REM_O
RXD_O
TXD_O
BPOUT
PON
A
B
DATA
CLK
VOX1
VOX2
RSSI
NOISE
TX
SEND
Q3
C
FIL1
FIL2
VCO2
VCO1
Q3
Q0
DATA
CLK
SDA_VOL2 SCL_VOL2
RX
ICNTL
8T1
VCO1
VCO2
8T2
8T1
Q2
Q2
Q0
C
B
A
R8
CLK DATA
8T1
PCON
AM/FM
ANL
TUNE1
VDD_ADJ
BEEP
DATA
CLK
AM_DEPTH
8T2
BPOU T
MM
UL
AM_MOD
SP_CNTL
UL
PCON
10C
TX_OUT
CV
16V
TX_VCO
RX_VCO
5C
5C
1st_Lo
8C
8CL
5C
5C
To FRONT UNIT
To ANTENNA CONNECTOR
(J1; CHASSIS)
To MAIN UNIT
To MAIN UNIT
10C
16V
R8
VCO_OUT
TMP-S01X-C1
J501
56N
L502
0.001
C504
15P
C566
100P
C507
330
R501
27P
C547
0.001
C502
8N
L507
C3328A
LA-253
L522
1.5P
C556
150
R546
100
R505
0.01
C545
8.2KR542
0.001
C541
0
R500
0.001
C548
0.001
C503
1.5K
R555
12P
C557
15K
R516
100K
R520
AS100340
L514
10N
56K
R513
22
R548
0.0047
C539
AS100340
L513
10N
C3328A
L506
12N
4.7K
R522
TA75S01F
IC501
1
2
3
4
5
22PC572
0.001
C505
NJM2904V IC500
1 2 3 4
5 6 7 8
18PC582
1.5K
R554
560
R534
0.01
C534
B2P-VH
J500
1
2
0.1
C588
3.3K
R527
0.1 C509
10 0
R526
5P
C600
6.8K
R525
68P
C524
270K
R541
820K
R539
MA4PH224
D504
15K
R537
LA-258 L524
100P
C500
10K
R512
18K
R536
0
R553
0.001
C562
TMP-S01X-C1
J504
TMP-S01X-C1
J503
100P
C536
470P
C517
0.001
C558
0.001
C555
10 MSVB2
C523
LA-258
L517
LA-244
L516
0.001
C561
1.8K
R508
10K
R509
0
R545
M RF137
Q50
4
0
R518
0.001
C512
8N
L508
C3328A
100P
C521
D TC144EU
Q502
12P
C554
220
R504
0.001
C511
0.001
C592
0.001
C538
0.01
C559
LA-263
L523
2SK3075
Q501
LR-89
L511
0.001
C569
7P C587
0.001
C531
39
R521
1 MSVA
C583
D TC144EU
Q503
56P
C520
22P
C560
33PC578
470P
C540
1.5
C535
/16V
5.6K
R543
330
R503
2.2K
R529
0.001
C518
22P
C551
36PC575
4.7
R506
33P
C570
0.001
C510
RB706F
D501
0.01
C527
0.001
C537
22P
C522
27P
C529
0.001
C506
18PC565
22P
C549
LA-263
L521
0.001
C552
MA4PH224D503
0.1
C591
B6B-PH-SM4-TB
J502
1
2
3
4
5
6
78
56N
L503
N TCG16
R535
100K
1.8K
R507
0.01
C501
68P
C544
39K
R515
31.0N
L504
0.001C567
MA4PH224
D502
82K
R511
LR-89
L509
1SS355
D507
39K
R538
10K R557
2SK3074
Q500
0.001
C543
0.001
C528
100
R514
39P
C585
15P
C513
120P
C542
100P C568
1.5P
C553
AS100340
L512
10N
33P
C515
0.001
C550
LA-244
L518
0.001
C563
22K
R517
RB706F
D500
18
R502
0.001
C516
LA-244
L519
0.001 C525
8P
C577
33K
R524
27.2N
L505
100
R528
8T2
PCON
10C
10C
8T1
TXOUT
TXOUT
RX
MOD
GND
8T1
PCON
GND
PROTECT
8T2
8T1
10C
MAIN UNIT
PA UNIT
K-CONNECT UNIT
MB-113
From MAIN UNIT
From MAIN UNIT
To PA UNIT
DATA JACK
0.01
C1
3.3K
R6
3.3K
R5
3.3K
R4
3.3K
R3
3.3K
R1
3.3K
R2
B13B-PH-SM4-TB
J4
1
2
3
4
5
6
7
8
9
10
11
12
13
1415
0.01
C2
0.01
C3
HK3(HOLE)
CP2
100
R13
100
R12
0451008.MRL
F1
1 2
0.001
C4
0.001
C5
0.001
C6
0.001
C7
0.001C8 0.001C9 0.001C10 0.001C11 0.001C12 0.001C13
0.001C14 0.001C15 0.001C16
0.001C17 0.001C18 0.001C19
0.001
C20
0.001
C21
DSM3MA4
D5
TMP-S01X-C1
J6
LA-252
L1
0R14
0R15
0R16
0R17
0R18
0.1
C25
0.001
C24
B2P-VH
J3
1
2
5P
C23
5P
C22
SA05C
R11
ERZV14D470
R19
MA2S111
D1
MA2S111
D2
MA2S111
D3
MA2S111
D4
47K
R7
15K
R8
1K
R9
100K
R10
HSJ1650-010020
J7
XMIT INT LOCK
REM SWAP
MEM
MONI
SGND
HP
AGND
RXD
MIC1
INCOM
PTT
MIC2
AUX IN
TXD
REM
ANT
GND
DC IN
Card edge connector
D-sub 15-pin
B13B-PH-SM4-TB
J4
1
2
3
4
5
6
7
8
9
10
11
12
13
1415
0.01
C2
0.01
C3
SA05C
R1
0451008.MRL
F1
12
0.001
C6
0.001
C7
0.001
C8
0.001
C9
0.001
C10
0.001
C11
0.001
C12
0.001
C13
DSM3MA4
D1
HK3(HOLE)
CP1
CP2
0.001
C16
0.1
C17
TMP-S01X-C 1
J2
LA-252
L1
0R4
0R5
0R6
0R7
0R8
0R9
5P
C14
5P
C15
S2P-VH
J6
1
2
0.001 C18
1KR11
ERZV14D470
R10
DALC-J15PAF-11L9-E
J5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1KR3
R2 1K
100P
C4
100P
C5
SHIELD
POWER+
TXD
TXKEY
SPEAKER
MIC GROUND
MIC 1
POWER GROUND
RXD
GROUND
INTERCOM SELECT
AUDIO GROUND
HEADPHONE
MIC 2
MIC1
HP
AGND
SP
AUX IN
REM
MIC2
TXD
RXD
PTT
MGND
INCOM
SGND
DC IN
GND
ANT GND
ANT
AUX IN
To ANTENNA CONNECTOR
(J1; CHASSIS)
From PA UNIT
(J503)
From PA UNIT
(J503)
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
0
.
0
7
V
2.
90V
2
.91
V
0.07
V
5.03
V
0.74
V
0
.
66V
0
.
69V
4
.
69V
5
.15
V
8
.
0
2
V
0.00
V
E
0
.
00V
7.47V
01
0
.
00V
0.75V
4
0.00
V
7.24V
0.00
V
8
.02
V
VOL1
0.00
V
8.02
V
8
.07
V
0.00
V
AM FIL1
AM FIL
2
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