Icom IC-A210 Service Manual page 93

(Addendum page)
July 2019
• MAIN UNIT 1/3 (for only IC-A210E #03)
MAIN UNIT #03 (3/3)
8T1
8T2
10C
5C
RX: 8.1 V
R8
TX: 0 V
R8
8C
RX: 0 V
Q29
TX: 8.0 V 2SB1302S
MAIN UNIT #03 (2/3)
FIL2
FIL2
FIL1 Q32
FIL1
TUNE1 DTB113ZK
TUNE1
AM/FM
AM/FM
ANL
ANL
MAIN UNIT #03 (3/3)
DATA
DATA
CLK
CLK
UL
UL
ICNTL
ICNTL
SDA_VOL2
SDA_VOL2
SCL_VOL2
SCL_VOL2
SDA_VOL1
SDA_VOL1
SCL_VOL1
SCL_VOL1
MM
MM
RX
A
A
SEND
B
B
C
C
SP_CNTL
SP_CNTL
AM_MOD
AM_MOD
AM_DEPTH
AM_DEPTH
VDD_ADJ
VDD_ADJ
BEEP
BEEP
BPOUT
BPOUT
VCO2
VCO1
CV CP1
HK3-S-T
8C
Q42
2SD2351
R378 8CL
10
L39
10U
RX: 0.1 V
TX_VCO
TX: 2.9 V
VCO1
R390
MP1 RX_VCO
0
2979
R363
0
R374
L40
0
R375 10U
0
R376
0
VCO2
RX: 2.9 V
TX: 0.1 V
8T1
8T2
10C
5C
RX: 0 V
TX: 8.0 V
8C
Q30
5C
DTB113ZK
Q46
DTC144EU
IC48
BU2099FV Q3
1 20 IC46
VSS VDD
2 19 1
NC OE
3 18 2
DATA SO
4 17 3
CLOCK Q11
5 16 4
LCK Q10
TX
6 15 5
Q0 Q9
7 14 6
Q1 Q8
8 13 7
Q2 Q7
9 12
Q3 Q6
10 11
BU4081BF
Q4 Q5
R319
R222
22K IC47
1 16
R320 R216 R217 RSET VP
2 15
CP DVDD
3 14
1M 10K 1K CPGND MUXOUT
4 13
AGND LE
5 12
RFINB DATA
6 11
RFINA CLK
7 10
AVDD CE
8 9
REFIN DGND
ADF4110BRUZ
L51 L57 L56
C1608CB 56N C1608CB
*C137 C94
L34 C87
10P
135N
0.5P
*Q5
*R106
R103
Q2
4.7K
2SC4215
*C139 L36 C98 C88
5P
110N 0.5P
*Q6
*R109
Explanatory notes
R104
Q3
4.7K
2SC4215
The underlined parts have been updated from the previous version of the addendum, or the original pages
Q3
R400 Q54
14 IC49
0
13 1 16
4 VDD
12 Q2 2 15
2 3 DTC144EU
11 Q0 3 14
0 1
10 4 13
7 B
9 5 12
9 C
8 6 11
5 D
7 10
6 A
8 9
VSS 8
CD4028BNSR
R377 Q53
1K
0
DTC144EU
UNLOCK
5C
CP17
CP15S
R237 1K
R316 1K
R317 1K
R318 1K
*R445 5C
C224
*Q62
0.001
2SC4215
*C407 *R447
5.0 V
VCO_OUT
C222 R223
CP12
CP15S
33P 15
Q33
*C239 L35
2SC4226
C1608CB
*C377 *C216
Q35
2SC4215
RX: 7.2 V
TX Line TX: 6.4 V
RX Line
Voltage Line (10V)
0.7 V
Voltage Line (8V)
Voltage Line (5V)
9-4g
8T1
8T2
10C
R438
100K
5
3
4
1
IC82
2 TA75S01F
5C
IC78
R380
0 1 24 R387 0
IN IN
2 23
OUT OUT
3 22
OUT OUT
R379 0 4 21 R388 0
IN IN
CP18
5 20
VDD GND
CP10S
6 19 C374 0.1
LD RESET
7 18
CLK VDAREF
8 17
DI DO
9 16
IN IN 5
10 15 3
OUT OUT
R389
11 14 4
OUT OUT
12 13 1
IN IN
47 IC79
2
TA75S01F
M62364FP
5C
R248
100
C399
X2
0.1 4 3
R434 VCC OUT
1 2
VCONT GND
100K
5
3 CR-860
R432
4
1
IC36 0
2 TA75S01F
C384
*R258
Q38
0.001
0.7 V
RX: 8.0 V
TX: 0 V
R262
220
D36
C261 *R256 C266
0.001
0.001
DAN235E
RX: 0 V
TX: 7.5 V
RX: 0 V
TX: 7.5 V
.
TO
PA-EUR UNIT
J2
1
8T1
2
8T2
3
PCON
4
PROTECT
5
10C
6
5C
L58
1.5U
MAIN UNIT #03 (2/3)
C252
R401
2NDLO
2.7K 0.001
R79
1st-Lo
1STLO
0
RX: 7.2 V
TO
TX: 6.4 V
PA-EUR UNIT
J8
C274
TX
15P
Q41
2SC4226