Icom IC-A110EURO Service Manual Addendum page 77

10-2 MAIN UNIT
Note R8
A : [A110EURO]
B : [USA/-1], [A110EURO]
W28
C : [A110] [GEN/-1], [AUS] only TX: 0 V
RX: 5.9 V
FI3
IC18 CFWM450D W25
TC4W53FU B [GEN/-1], [AUS] only
C46 O I
IC40
0.01
1 8 IC17 TA31136FN
2 7 TC4W53FU B 1 16
OSCIN MIXIN
3 6 2 15
OSCOUT GND
4 5 FI4 8 1 3 14
MIXOUT N-REC
CFG450H B 7 2 4 13
VCC N-DET
6 3
3 1 5 12
IFIN RSSI
2 5 4 6 11
R288 DEC IFOUT
7 10
1k FILOUT QUAD
5 4 8 9
FILIN AFOUT
5V
FISW FISW
J5 IF AGC IF AGC
1
3
RMUT
5
SPE Q5
C48 R40 2SC4215 TX: 0 V
7 AFMUT
0.1 2.2k RX: 4.83 V
SPE
C50 R371 C51 C53
SMUT
9 0.1 10k 0.01 0.01
SP
TX: 0 V TX: 0 V Q7 TX: 0 V
2SC4211
VCS Q4 RX: 2.13 V RX: 0.94 V RX: 0.52 V
11 R35 Q6
SP 2SC4215
100 TX: 0 V 2SC4215
SCK
13 RX: 1.88 V
C47 R370
8V Q77
0.1 10k R484 R328 R333 2SD1819A
SO TX: 0 V
15 3.9k 56k 10k
VCC RX: 2.14 V
BEEP
17
5V
C55 R331
FISW
19 0.01 220k
from/to FRONT TRC
Unit J1
21 UNLK
R330 Q78
TMUT
TBPS1R154K475H5Q 2SD1819A
PLSTB
23
PSWC 5V TX: 2.07 V
SO IC5 IC51 RX: 2.05 V
25 IC19b
CPU5V TA75S01F TA75S01F
C542 C543 IC19c R237 R238 NJM2902V
SCK 1 5 0.1 0.1 5 R235 R236 NJM2902V 22k 22k
27
+ 4 1 22k 22k
MICE 3 + 4 10
— 3 + 8
R/T 2 C541 — 9
29 2 R234 —
MIC 0.1
22k
31
PTT
R120 TX: 2.28 V
SQLI TX: 2.18 V TX: 2.17 V
33 100k RX: 2.3 V
PTTS 5V RX: 2.05 V RX: 2.05 V
35 W20
37 IC22
TC4W53FU
R122 R123 R124 IC31
39
39k 39k 39k 5 TA75S01F 8 1
1
+ 4 7 2
3
— 6 3
2
5 4
TX: 2.15 V
RX: 2.03 V
5V
TX: 4.96 V IC16
R111 R113
RX: 0 V TC4W53FU
100k 33k
Q52 C110 R108
2SA1622 8 1 1k
PTTS 1 IC4
R114
7 2 BA3308F
NTCCM16084LH
6 3 8 7
NC OUT2
5 4
9 6
IN2 NC R188 47k
10 5
NF2 VCC
11 4
NF1 ALC
12 3
TX: 0 V
NC NC
RX: 8.05 V 13 2
C577 IN1 GND
14 1
0.001 A NC OUT1
PTT
J6 MIC
8V
MICE MICE SMUT
EMIC
C404 R444
EPTT TX: 8.28 V
0.47 10k
AFOUT R340 SQL Open: 8.3 V
560 SQL Close: 0.3 V
IC30
R273 C353 C128
TC4S66F 4 5
470k 0.1 0.1
2 1
IC37
TDA7233D 3
Q74
4 5
+VS OUTPUT 2SB798
3 6
C550 GND SVR
2 7
J7 0.001 MUTE —INPUT IC28
1 8 Q86
GND +INPUT TC4S66F
a R323 XP4315 5 4
(EXT SP) Q75 10k
C551 2SC4081
3 4 1 2
47p T1 R380 C343 D43
ST-82(P) 10 100 1SS352
L86 2 5 3
ZBFS5101-PT
1 6
8V
VCC
5V
10 - 2
FI1
D30 C333 R447 R448 D29
FL-306
1SV307 0.01 1.2k 680 1SV307
R8
C255
0.001
L11
LS-527
C318
0.01 0 V
TX: 0 V 1st LO
RX: 3.77 V
Q2
D31 FI2 D28 3SK184
C42 C332 R438 R439
1SV307 FL-307 B 1SV307
0.01 0.01 B 470 B 470 B
B B
Q3
2SC4215
C41
0.01
TUNE
R8
RF AGC
C40 L54
0.001
5V 5V 82nH
FISW FISW
2nd LO 2nd LO C91 L19 C98 L22 R474
0.001 39nH 15p 47nH 4.7
Q20
R8 R8 2SK3074
Q69
DTB123EK
5.0 V
5V
IC11
R184
NJM2107F
1M
RSSI 1 5 VCC
+ 4 SQLI
3 T8
—
2 0 V
Q68
XP4315 TX: 5.31 V
RX: 0 V
3 4 5V
R182 R183
470k 1M D11
2 5 C87
15p MA77
R479 R79 C472
1 6
NTCCM16084LH 150 0.001
Q42
5V 2SC4226
C82
0.001
R239 2 4 1st LO
5 22k + 1 IC19a
+ 7 3
6 — NJM2902V Q16 2SC4116
— 11 8V
R240
TX: 2.17 V
22k
RX: 2.05 V
TX: 2.14 V
RX: 2.05 V
C263
0.068
IC19d
NJM2902V R/T R/T
13 MOD
14 —
12 R62
+ R357 A
3.3k
1M 1k C
Q79
2SK880
MOD
CP1
TX: 2.0 V
R364 R375
1.2M RX: 2.04V
R8 5.6k
R372
TX: 0 V
100
1 5 RX: 6.04 V
+ 4
3
— C421 C423
Q33 2
22p 6p
XP4315 2nd LO
C426
3 4
IC42 20p
TA75S01F
2 5
Q83
4.02 V 2SC4215
1 6
5V 5V
W47
TRC TRC 5V
SMUT SMUT
VCS
VCS
SCK
SO SO
5V 5V TX: 7.95 V
RX: 0 V
C126 R132
IC13 X1
0.1 10k
TC9260F BEEP CR-658 A
Q70 Q71 CR-657 C
9 8
DATA CX DTB123EK DTC144EE
10 7 1 4
STB CS R186 VCON VCC
11 6
AGND AGND 150k
12 5 5V 2 3
LD2 LD2 GND OUT
13 4
C354 LD1 LD1 R131 C177
14 3 3
0.1 IN IN 1k 4.7
15 2 2 1
OUT OUT
16 1
VDD VSS
4 5
5V
IC6
TC4S66F RMUT
R8
TX: 4.98 V
Q81
DTC144EU Q80 SQL Open: 5 V MOD
W33 DTA144EU
AF SQL Close: 0 V AF
8V
8V
VCC VCC
5V 5V
C31 C28 R377 TX: 0 V
0.5p 0.001 22 RX: 5.6 V TX: 0 V
TX: 0.39 V
RX: 1.7 V
RX: 2.08 V
L10 RF AGC C358 C23 C342 C165 C10 D38 C362
LS-527 47p 0.75p 4p 27p 56p 1SV271 0.001
Q1
L49 L9
3SK184 LS-527 LS-527
TX: 0 V
RX: 0.83 V
Q73
TUNE TUNE
2SC4081
R8 R8
D53 D54
RF AGC RF AGC
MA2S111 MA2S111
R435 C519
1.8k 470p L23 C418 L67 L35 L68 L69 C520 R468 C554 R473 L70
25nH 0.001 30nH 17nH 8.8nH 17nH 270p 4.7 470p 180 LA-232
Q21 R469
4.7
2SK3075 Q51
MRF137
TX: 10.43 V R219
13.53 V
RX: 10.45 V 39 DC2
MOD V
TX: 7.94 V
RX: 0 V
T8 T8 T8
L87 C78
56nH 20p
TX: 6.68 V
R415 C74
RX: 0 V
1k 18p
Q15
2SC4228 C72
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 TMUT
L39 R194
0.82µH 2.7k
1 5
2
L43 R451
0.82µH 4.7
3 4
TX: 1.03 V TX: 3.72 V
TX: 0 V Q44 RX: 0 V RX: 3.73 V
2SC4226
RX: 7.09 V
TX: 2.4 V C195 C538 C539
CP2 R61
RX: 2.44 V R251 L33 D64 18p A 24p A 15p A R65
TX: 7.05 V 1.5k A
4.7k 0.82µH HVU350B 20p C 120p C 10p C 15
RX: 0.54 V 2.2k C
VCC
L40
C391 C188
MC152- 33p
0.5p
E558CN-
Q43
100025
TX: 0 V 2SC4226
RX 2.96 V IC29
R256 R460
BA08FP
2.7k 4.7
VCC
TX: 0 V
Q59
RX: 0.8 V
2SC4226
L42 D65 C545 C547 C546
0.82µH HVU350B 12p 24p 9p TX: 3.64 V
RX: 3.65 V
L41
W49 C MC152-
E558CN-
Q84 100024
2SC4215 W48
IC2
TB31207AFN C70
0.001 MOD V
9 8
R64 CP2 FIN2 C68
10 7
100k GND BS2 0.001
8V
11 LD BS1 6 Q12
2SC4403
12 5 Q53
BO STB
13 4 IC41 R8 DTB123EK
XOUT DATA
14 3 TA8208H
XIN CLK
15 2
VCC GND
16 1
CP1 FIN1
C206 C209 R209 C530
470 0.47 47k 0.0056
C398 C529
W38 C 0.22 0.047
R218
4.7k
VCC TX: 0 V
RX: 7.93 V
R8
MOD
AF
8V
VCC
5V
MOD V (W36)
L5 L4 C6 L3 L2 L48 W41 W52 A
LA-244 LA-244 0.001 LA-263 LA-253 LA-243
W39 W42
W53 A
C4 C2 C330
1.5p 5p 9p
W40 W43 W54
A
5.03 V IC26
TA78L05F Q82 L78
2SC4081 ZBFS5101-PT
CPU5V
O I
G
MOD V
L71 L50 C20 L6 C11 L7 R1
LA-382 LA-262 0.001 LA-235 0.001 LW-25 100
T8
R471
22k
PSWC Q102
D5 D4
2SC4081
RB706F-40 RB706F-40
T8
IC48
Q98
TC4W53FU
2SA1586
R404
TX: 2.44 V 5V 8 1
R429 2.2k
RX: 0 V AF 7 2
10k
R424 3
MOD 6
100k
5 4
R280
Q11 C140 10k
R426 R425
2SC4081 5 0.001 R148
47k 22k 1
4 + 22k
3
— TRC
0 V
2
C120
IC50
R430 0.47
TA75S01F
12k
Q99
TX: 1.69 V
2SC4116
RX: 0 V
R150 10k W32
IC44
10.44 V µPC311G2
5 4
6 3
C446
Q23 7 2
330p
2SB1132 8 1
5.0 V
IC7 Q22 R442
R127 2SC4211
S-81350HG-KD 10k
10k
I O I O 5.0 V
D15 R412
G G
MA111 10k
PSWC
MOD V
C505
470 Q87
2SK2414-Z
Q100 Q94
FW215 D66 Q101 FW215
SB07-03C DTC144EU
Q72 8 1 VCC
D1 S1
XP4315 7 2
D1 Q1 R440
3 4 6 3
D2 S2 R466 10k
5 4
10k
D2 G2
2 5 Q97 Q96
D62
DTC144EU DTC144EU
SB07-03C
1 6
L53
HK-08S070-1310
TX: 0 V D26
W35
SQL Open: 4.9 V 10.45 V DE5SC6M
SQL Close: 0 V
VCC
Q88
2SK2414-Z
MOD
AF
VCC VCC
5V
CHASSIS
MOD V W3 J1
W2
(ANT)
L62 L63 L64
HK-08S070- HK-08S070- HK-08S070- L80
W4
1310 1310 1310 ZBFS5101-PT
DC1
L81
C453 ZBFS5101-PT GN1 GN2
(W37)
3.3
IC47
HIP4081AIB
20 1
Q93
2SK2414-Z BHO BHB
19 2
BHS BHI
Q92 18 3
BLO DIS
2SK2414-Z 17 4
BLS
VSS
16 5
VDD BLI
15 6
VCC ALI
FI5 14 7
ALS AHI
ACF321825-223 13 8
ALO HDEL
12 9
AHS LDEL
11 10
AHO AHB
D56
39.7 V DE5SC6M L61
HK-10S080-1210
Q91
2SK2414-Z
FI6
BNX-002-01
IC46
MC33063AD 1 2 CP3
+
1 8 1
SWC DRVC
2 7
SWE LPKSEN
3 6 3 4 5 6
TIMCAP VCC
4 5 CP4
GND COMPIN —
2
D36 EP2
W1
DSA3A1
L65
10µH
13.72 V
Q90
IC45 2SA1471R
NJM072BM
1 8
2 7
3 6 5 4
Q89
4 5
XP1501
1 2 3
R393
15k
W34
10.1 V
D55 L60
SB07-03C 10µH
W43
20 1 IC15
BHO BHB
19 2 MC33063AD
BHS BHI
18 3 1 8
BLO DIS SWC DRVC
W44 17 4 2 7
BLS VSS SWE LPKSEN
16 5 3 6
VDD BLI TIM CAP VCC
15 6 4 5
VCC ALI GND COMPIN
14 7
ALS AHI
13 8
ALO HDEL
12 9
AHS LDEL
11 10
AHO AHB
IC43
HIP4081AIB