Main Unit - Icom IC-A110EURO Service Manual Addendum

10-2 MAIN UNIT

Note
R8
A : [A110EURO]
B : [USA/-1], [A110EURO]
W28
[GEN/-1], [AUS] only
C : [A110]
IC18
TC4W53FU B
C46
0.01
1 8
2 7
3 6
4 5
FISW
J5 IF AGC
1
3
RMUT
5
SPE
Q5
C48 R40 2SC4215 TX: 0 V
AFMUT
7 0.1 2.2k
RX: 4.83 V
SPE
C50 R371
SMUT
9 0.1 10k
SP
TX: 0 V
VCS Q4
RX: 2.13 V
11
R35
2SC4215
SP
100
SCK
13
C47 R370
8V
0.1 10k
SO
TX: 0 V
15
VCC RX: 2.14 V
BEEP
17
5V
C55
FISW
19
0.01
from/to FRONT TRC
Unit J1 UNLK
21
TMUT
PLSTB
23
PSWC 5V
SO
IC5
25
CPU5V TA75S01F
C542 C543
SCK 1 5 0.1 0.1
27
+ 4
MICE 3
—
R/T 2 C541
29
0.1
MIC
31
PTT
R120
TX: 2.28 V
SQLI
33 100k RX: 2.3 V
PTTS 5V
35
37
39 R122 R123
39k 39k
5V
TX: 4.96 V IC16
RX: 0 V TC4W53FU
Q52
2SA1622
8
PTTS
7
6
5
TX: 0 V
RX: 8.05 V
PTT
J6 MIC
8V
MICE
EMIC
C404 R444
EPTT
0.47 10k
R340
AFOUT
560
IC37
TDA7233D
4 5
+VS OUTPUT
3 6
GND SVR
C550
2 7
J7 0.001 MUTE —INPUT
1 8
GND +INPUT
a
(EXT SP)
C551
47p
T1 R380 C343
ST-82(P) 10 100
L86
ZBFS5101-PT
8V
VCC
5V
10 - 2
TX: 0 V
RX: 5.9 V
FI3
CFWM450D W25
[GEN/-1], [AUS] only
O I
IC40
C42
TA31136FN
IC17
0.01
TC4W53FU B 1 16
OSCIN MIXIN
2 15
OSCOUT GND
8 1 3 14
FI4
MIXOUT N-REC
CFG450H B 2
7 4 13
VCC N-DET
3 1 6 3 5 12
IFIN RSSI
4
2 5 6 11
DEC IFOUT
R288
7 10
FILOUT QUAD
1k
5 4 8 9
FILIN AFOUT
5V
FISW
IF AGC
C53
C51
0.01
0.01
Q7
TX: 0 V TX: 0 V
2SC4211
RX: 0.94 V RX: 0.52 V
Q6
2SC4215
TX: 0 V
RX: 1.88 V
Q77
R484 R328 R333 2SD1819A
3.9k 56k 10k
R331
220k
R330 Q78
2SD1819A
TBPS1R154K475H5Q
TX: 2.07 V
RX: 2.05 V
IC51
IC19b
TA75S01F
IC19c R237 R238
NJM2902V
R235 R236
5 NJM2902V 22k 22k
1 22k 22k 5
+ 4 10 +
3 + 8 6
— 9 —
R234
2 —
22k
TX: 2.18 V TX: 2.17 V
RX: 2.05 V RX: 2.05 V
W20
IC22
TC4W53FU
IC31
R124
39k 5 TA75S01F 8 1
1
+ 4 7 2
3
— 6 3
2
5 4
TX: 2.15 V
RX: 2.03 V
R111
R113
100k
33k
C110 R108
1 1k
1
IC4
R114
2 BA3308F
NTCCM16084LH
3
8 7
NC OUT2
4 9 6
IN2 NC R188 47k
10 5
NF2 VCC
11 4
NF1 ALC
12 3
NC NC
13 2
IN1 GND
C577
14 1
0.001 A NC OUT1
MICE SMUT
TX: 8.28 V
SQL Open: 8.3 V
SQL Close: 0.3 V
IC30
R273 C353 C128
TC4S66F 4 5
470k 0.1 0.1
2 1
3
Q74
2SB798
IC28
C354
Q86
TC4S66F
0.1
R323
XP4315 5 4
Q75
10k
2SC4081
3 4 1 2
D43
1SS352
2 5 3
1 6
FI1
D30 C333 R447 R448 D29
FL-306
1SV307 0.01 1.2k 680 1SV307
R8
C318
0.01
TX: 0 V
RX: 3.77 V
D31 FI2 D28
C332 R438 R439
FL-307 B
1SV307 1SV307
0.01 B 470 B 470 B
B
B
Q3
2SC4215
C41
0.01
C40
0.001
5V 5V
FISW FISW
2nd LO 2nd LO
R8 R8
Q69
DTB123EK
5.0 V
5V
IC11
R184
NJM2107F
1M
RSSI
1 5
+ 4
3
—
2 0 V
Q68
XP4315
3 4 5V
R182 R183
470k 1M
2 5
R479
1 6
NTCCM16084LH
5V
R239
2 4
22k + 1 IC19a
7 3
— NJM2902V
11
R240
TX: 2.17 V
22k
RX: 2.05 V
TX: 2.14 V
RX: 2.05 V
C263
0.068
IC19d
NJM2902V
MOD
13
14 —
12
+
MOD
R364
1.2M
1 5
+ 4
3
—
2
Q33
XP4315
3 4
IC42
TA75S01F
2 5
4.02 V
1 6
5V 5V
TRC
SMUT SMUT
VCS
SO
5V 5V
C126 R132
IC13
0.1 10k
TC9260F BEEP
9 8
DATA CX
10 7
STB CS
R186
11 6
AGND AGND 150k
12 5 5V
LD2 LD2
13 4
LD1 LD1 R131 C177
14 3 3
1k 4.7
IN IN
15 2 2 1
OUT OUT
16 1
VDD VSS
4 5
5V
IC6
TC4S66F RMUT
TX: 4.98 V
Q81
Q80 SQL Open: 5 V
DTC144EU
W33
DTA144EU SQL Close: 0 V
AF
8V
VCC
5V
C31
0.5p
C255
0.001
L11
LS-527
0 V
1st LO
Q2
3SK184
TUNE
R8
RF AGC
L54
R435
82nH
1.8k
C91 L19 C98 L22 R474
0.001 39nH 15p 47nH 4.7
Q20
2SK3074
VCC
SQLI
T8
TX: 5.31 V
RX: 0 V
D11
C87
MA77
15p
R79 C472
150 0.001
Q42
2SC4226
C82
0.001
1st LO
Q16 2SC4116
8V
R/T R/T
TX: 2.4 V
R62
RX: 2.44 V
R357 3.3k A
1M 1k C
Q79
2SK880
TX: 0 V
RX 2.96 V
CP1
TX: 2.0 V
R375
RX: 2.04V
5.6k
R8
R372
TX: 0 V
100
RX: 6.04 V
C421 C423
22p 6p
2nd LO
C426
20p Q84
2SC4215
Q83
2SC4215
R64
W47 100k
TRC 5V
VCS
SCK
SO
TX: 7.95 V
RX: 0 V
X1
A
CR-658
Q70 Q71 CR-657 C
DTB123EK DTC144EE
1 4
VCON VCC
R218
4.7k
2 3
GND OUT
R8
MOD
AF
8V
VCC
5V
C28 R377
TX: 0 V
0.001 22
RX: 5.6 V TX: 0.39 V TX: 0 V
RX: 2.08 V RX: 1.7 V
L10 C358
RF AGC
LS-527 47p
Q1
L49
3SK184
LS-527
TUNE
R8
RF AGC
C519
470p
L23 C418 L67 L35 L68 L69 C520
25nH 0.001 30nH 17nH 8.8nH 17nH 270p
Q21
2SK3075
TX: 10.43 V
RX: 10.45 V
T8
T8
L87 C78
56nH 20p
R415 C74
1k 18p
Q15
C72
2SC4228
20p
Q14
2SC4403
TX: 5.02 V
RX: 5.11 V
TX: 5.42 V
W29 C
RX: 5.44 V
TX: 7.1 V
RX: 7.13 V
Q58 XP1113
L39 R194
0.82µH 2.7k
1 5
2
L43 R451
0.82µH 4.7
3 4
TX: 0 V
Q44
RX: 7.09 V 2SC4226
C195 C538 C539
CP2
R61
R251 L33 D64 18p A 24p A 15p A
1.5k A
TX: 7.05 V
4.7k
0.82µH HVU350B 20p C 120p C 10p C
2.2k C
RX: 0.54 V
L40
MC152-
E558CN-
100025
R256
R460
2.7k
4.7
Q59
2SC4226
L42 D65 C545 C547 C546
0.82µH HVU350B 12p 24p 9p
L41
MC152-
W49 C
E558CN-
100024
W48
IC2
C70
TB31207AFN
0.001
9 8
CP2 FIN2
10 7
GND BS2
11 6
LD BS1
12 5
BO STB
13 4 IC41
XOUT DATA
TA8208H
14 3
XIN CLK
15 2
VCC GND
16 1
CP1 FIN1
C206
470
C398
W38 0.22
C
TU
R8
RF
R46
4.7
R46
4.7
R21
39