![background image](http://html1.mh-extra.com/html/icom/ic-a210/ic-a210_service-manual_3473139139.webp)
August 2015
(Amended page)
29
*Refer to “PARTS LIST.”
MAIN UNT (Right side)
0.07V
2.90V
2.91V
0.07V
5.03V
0.74V
0.66V
0.69V
4.69V
5.15V
8.02V
0.00V
0.00V
7.47V
0.00V
0.75V
0.00V
7.24V
0.00V
8.02V
0.00V
8.02V
8.07V
0.00V
AM FIL1
AM FIL2
VCC : 13.80 V
Freq. : 127.05 MHz
Description : COMMON
RX
TX
10.33V
0.00V
8.14V
0.00V
8.06V
0.00V
5.31V
10.33V
17.50V
10.35V
23.10V
13.57V
30.48V
0.00V
1.59V
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
78
9
10
11
12
13
14
220
R262
0.001
C261
330
R264
2SC4215
Q38
10k
R247
1k
R237
*C230
27P
C244
1k
R252
0.001
C253
100
R248
100P
C220
0.001
C236
10k
R238
1k
R217
33k
R259
0.001
C224
*C228
0.001
C266
0.001
C384
0.001
C233
82k
R254
0.001
C265
100
R233
27P
C241
2SC4215
Q35
0.01
C245
0.001
C252
12k
R218
15P
C274
*C358
*C239
10k
R216
IC53
DAN235E
D36
DTB113ZK
Q30
DTB113ZK
Q32
47k
R277
4.7k
R278
0.001
C282
0.1
C214
4.7
C254
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
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
47k
R301
DTC144EU
Q46
0.01
C298
0.01
C299
0.01
C300
0.01
C302
100k
R313
100k
R314
100k
R315
1k
R316
1k
R318
1k
R317
0
R319
C1608CB
L51
3P
C312
10P
C313
0
R79
0.001
C316
0.001
C315
0.001
C317
1M
R320
TC03C100A
C127
TC03C100A
C136
2SB1302S
Q29
10k
R28
39P
C218
270
R92
330
R88
10P
C94
5P
C98
680
R106
39P
C137
220
R109
22k
R222
10k
R327
1k
R328
C2012C
L47
CR-860
X2
1
VCONT
2
GND
3
OUT
4
VCC
0.47
C215
0
R336
*L32
100k
R232
CP15S
CP7
CP15S
CP6
56N
L57
135N
L34
L35
C1608CB
C1608CB
L56
CP15S
CP14
0.001
C347
10k
R292
4.7k
R323
4.7k
R324
4.7k
R246
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
J8
DTC144EU
Q53
1k
R377
100k
R118
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
0
R379
0
R380
0
R381
DTC144EU
Q54
47k
R383
10k
R384
10k
R385
4.7
R386
0.1
C373
0.1
C374
0.01
C376
1
C375
0
R387
0
R388
L68
22N
0.01
C378
TA75S01F
IC79
1
2
3
4
5
47
R389
1
C379
0.001
C380
J2
1
2
3
4
5
6
7
8
0.001
C381
0
R400
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
*R443
*R444
*R446
*Q62
*C406
*C407
*R448
0
R449
0
R450
*R445
*R219
*C377
*R257
*R253
*R256
*R258
*R447
*C216
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
2SC4226
Q41
CP15S
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
VCO1
Q3
Q0
DATA
CLK
SDA_VOL2
SCL_VOL2
RX
ICNTL
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
BPOUT
MM
UL
AM_MOD
SP_CNTL
UL
PCON
VCO2
8T1
10C
TO PA-UNIT
TX_OUT
CV
16V
TX_VCO
RX_VCO
5C
5C
1st_Lo
8C
8CL
5C
TO FRONT-UNIT
10C
16V
R8
VCO_OUT
PA (A210) UNIT
LA-244
L518
LA-263
L523
LA-253
L522
0.0047
C539
120P
C542
2SK3074
Q500
MRF137
Q504
0.001
C552
RB706F
D501
RB706F
D500
2.2k
R529
3.3k
R527
0.001
C555
0.001
C558
100
R526
470P
C540
15P
C513
4.7
R506
33P
C515
470P
C517
22P
C522
68P
C524
27P
C529
0.001
C537
1.5
C535
6.8k
R525
100k
R520
4.7k
R522
0.01
C534
0.001
C567
2SK3075
Q501
J500
1
2
0.001
C512
0.001
C538
0.001
C563
0.001
C550
0.001
C518
0.001
C516
0.001
C511
0.001
C543
0.001
C510
0.001
C502
0.001
C505
LR-89
L509
100
R528
0
R500
220
R504
0.01
C545
0.001
C548
LA-244
L519
LR-89
L511
56N
L502
100P
C500
0.001
C503
0.001
C504
0.01
C501
LA-263
L521
22k
R517
33k
R524
47k
R516
56P
C520
330
R501
18
R502
330
R503
31.0N
L504
1.5P
C553
1.5P
C556
12P
C554
12P
C557
1 MSVA
C583
56k
R513
10k
R512
560
R534
0.001
C525
82k
R511
J503
J501
NJM2904V
IC500
1
2
3
45
6
7
8
0.001
C528
0.01
C527
100
R514
0.001
C531
15k
R537
39k
R538
820k
R539
68P
C544
DTC144EU
Q502
DTC144EU
Q503
TA75S01F
IC501
1
2
3
4
5
NTCG16
R535
18k
R536
J504
18P
C582
5P
C600
LA-258
L524
8P
C577
33P
C578
36P
C575
22P
C572
18P
C565
MA4PH224
D504
MA4PH224
D503
MA4PH224
D502
7P
C587
22P
C560
22P
C551
LA-244
L516
LA-258
L517
39
R521
0.1
C588
8.2k
R542
5.6k
R543
0.1
C591
J502
1
2
3
4
5
6
7
8
0.01
C559
0
R545
1.8k
R508
0.1
C509
22
R548
56P
C585
10 MSVB2
C523
12P
C595
3.3k
R550
RB706F
D505
2.2k
R549
0.001
C598
RB706F
D506
0.001
C597
0.001
C599
12P
C596
33P
C570
15P
C566
0.001
C592
0.001
C506
10k
R557
0
R553
100P
C507
100P
C521
AS100340
L512
AS100340
L513
1.5k
R554
C3328A
L506
8N
L507
8N
L508
0
R518
56N
L503
AS100340
L514
27.2N
L505
22P
C547
100P
C536
100P
C568
1SS355
D507
22P
C549
150
R546
470k
R541
470
R505
8.2k
R509
2.2k
R555
18k
R515
10P
C519
330
R507
0.001
C561
0.001
C569
0.001
C562
8T2
PCON
10C
10C
8T1
TXOUT
RX
MOD
GND
8T1
PCON
GND
PROTECT
8T2
8T1
10C
A
B
C
D
E
F
G
H
I
J
K
To ANTENNA CONNECTOR
(J1; CHASSIS)
To MAIN UNIT
To MAIN UNIT
K-CONNECT UNIT
MB-113
(Except [USA-02], [EUR-02])
DATA JACK
0.01
C1
3.3K
R6
3.3K
R5
3.3K
R4
3.3K
R3
3.3K
R1
3.3K
R2
J4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0.01
C2
0.1
C3
C28
39 50V
HK3(HOLE)
CP2
100
R13
100
R12
0451008.MRL
F1
1 2
0.001
C4
0.001
C5
0.001
C6
0.001
C7
0.001
C8
0.001
C9
0.001
C10
0.001
C11
0.001
C12
0.001
C13
0.001
C14
0.001
C15
0.001
C16
0.001
C17
0.001
C18
0.001
C19
0.001
C20
0.001
C21
DSM3MA4
D5
J6
LA-252
L1
0
R14
0
R15
0
R16
0
R17
0.
1
C25
0.001
C24
J3
1
2
5P
C23
5P
C22
SA05C
R11
ERZV14D470
R19
DA2S10100L
D1
D6
DA2S10100L
D2
DA2S10100L
D3
DA2S10100L
D4
47K
R7
15K
R8
1K
R9
100K
R10
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
J4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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
LA-252
L1
0
R4
0
R5
0
R6
0
R7
0
R8
0
R9
5P
C14
5P
C15
J6
1
2
0.001
C18
1K
R11
ERZV14D470
R10
J5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1K
R3
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)
+
DA2S10100L