Icom IC-M2A Service Manual page 32

VCC
R54 R58 R60
R61
33 1 k 1 k
0.15
Q51
2SC4081 R
R59
15 k
C54
15 P
XP6401
50
226 R25
R64
10 k C58
R57
C55
0.1
82
24 P
R67
100 k
IC50
5
1 NJM2125F
4
3
C57
C59
2
0.1 0.001
RX 3.2 V
R94
C105
0.001 33 k
MA77
R93
1 k
C104 C102 L94 C100
47 P 12 P 80 nH 12 P
0
R91
6 R25
1 k
C103
C101
L93
D93
5 P
33 P
80 nH
R95
MA728
100 [M2A]
47 [M21]
BPFS
T5V
VOLIN
VOLO
5V
Power Save OFF 5.0 V
Q225
2SB1132 Q
5V VCC
R227
10 k
Q224
XP6501 AB
C226
C224
R228
0.01
22
22 k
R226 C225 C227 C228
2.2 k 0.22 22 0.001
Q223
DTC144EUA
AFV
R62
100 k
3216
R63
C61
C62 R72 L53
10 k
33
0.001 47 15 nH
Q52
C65
470 P
T5V
L51
82 nH
2SK2973
R71
5W_TX 2.4 V
1W_TX 0.5 V 100
R69
15 k
R68
100
R70
C64
C60 R73
15 k
0.001 1 k
0.001
C96 L91 C94
C99 C97
12 P 82 nH 12 P
2 P 1 P
C93
D92
4 P
R90 C95
L92 D91
10 k 33 P 1SV307
82 nH
C98
0.001
CH16_RX 4.7 V
CH88_RX 0.0 V
5.0 V
1 5
CTRL VIN
2
GND
4
3
NB VOUT R230
XP6501 AB
27 k
IC220
NJM2870F05
CPU5V
C229 R231 C231
C230
0.001 1 M 1
10
CPU5V
VCC
T5V
R76
150
3216
C73
C63 C67 C68
0.001
470 P 470 P 47 P
L55
31 nH
C72
L56 L57
Q54
0.001
12 nH 36 nH
2SK2974
MP50
Q53
C71
C70
91 P 27 P
R75
100
C66
R74
10 k 0.001
C92 L90
47 P 44 nH
R115
39 [M21] only
C91 C90
C115
D90
22 P 33 P
0.001
1SV307
[M21] only
VCC
C240
0.001
T5V
VOLIN
VOLO
5V
VCC
R240
AF Mute OFF 150
7.5 V
Q230
2SB1132 Q
AFV
R233
R235
2.2 k
330 k
Q231
C233 R236
0.01 150 k
C232 R234
R232
0.1 3.3 k
1 k
AFV
L80 L81 L82
D52 C80
28 nH 28 nH 36 nH
1SV307 0.001
C84
7 P
C82
5 P
C83
C81 C85 R80
22 P
15 P 27 P 82 k
5W_TX 3.2 V
1W_TX 1.2 V
R81
C87
22 k
2 P
C88 R82
0.001 3.9 k
D80
1SS375
T5V
VCC
7.5 V
VCC
VCC
VOLIN
VOLO
GND
GND
CP240
Back-Light ON
R241 R242
3.7 V
820 820
Back-Light ON
3.8 V
DS240 DS244
DS242
FY1101F-TR SML-311YTT86
SML-311YTT86
DS243
DS245
DS241
SML-311YTT86
SML-311YTT86
FY1101F-TR
CP245
1 5
2
R245
3
4 1 k
Q240
XP1213
CP80
from / to
the antenna connector
1
1
2
2
3
3
4
4
5
5
6
6
J240
IMSA-9230B-1-06Z124-T