Icom IC-M45 Service Manual - page 27
10-2 MAIN UNIT
10 - 2
L4
LA-243
C10
10 P
L5 LS-491
Q1
2SK882 Y
L6 LS-491
C20
0.3 P
R1
47
C199
0.1
C14
0.001
R5
C26
5 P
C22
0.001
R7
100
C25
0.001
R9
22 k
R8
820 k
C31
0.022
C201
0.1
Q2
3SK131 L
FI1a FL-202
R18
1.5 k
C32
0.001
C30
68 P
R12
10
L8
0.47 H
C36
10 P
R13
680
R157
560
C35
0.001
R5
Q3
2SC2714 Y
R19
100 k
R20
470
FI1b FL-202
R17
560
C38
0.001
C37
0.22
C39
0.01
C40
0.001
DET
CP3
C43
0.01
C44
10
R25 470
1
2
3
4
5
6
7
8
RSSI
GND
C42 100 P
R23
1.2 k
X2 CDBCA450CX24
DET
C41
0.047
R24
100 k
D5 1SS321
SQL
TONE
DET
SQL.C
C55
0.1
C52
0.1
R139
10 k
R27
33 k
R28
2.7 k
R138
10 k
T5
R5
SQLI
SQLV
C53
220 P
C54
220 P
C47
0.01
1
2
3
4
5
FI2
CFWS450E
C46
1
C51
0.001
C50
0.001
R22
390
C45
0.1
R21
1.5 k
R26
120 k
FIL
1
FIL
2
IN
3
VCC
4
CR
5
CR
6
GND
7
OUT
8
IC10
BA1604F
u only
Q25
2SB1132 R
R135 10 k
C167
10
u only
C168
0.1
u only
C169
2.2
u only
C170
1
u only
R153
4.7 k
u only
1
2
3
4
5
6
TONE
R5
T5
C34
0.022
C33
0.001
L9
82 nH
C172
0.022
u only
R14
47
C29
0.001
R136
2.2 M
u only
R137
43 k u only
R15
2.2 k
C28
7 P
L7
LS-491
C24
0.001
R5
1 M
R6
100 k
L26
47 nH
C196
0.1
R11
10 k
R10
100 k
C23
1 P
C206
8 P
T5
R5
CP1
C12
6 P
C13
1 P
R2
100
C15
0.001
D3
HVU350
D4
HVU350
R3
1 M
R4
1 M
C17
0.001
C16
0.001
C19
6 P
C21
6 P
D2
HVU350
C18
5 P
C9
27 P
C11
36 P
L21
LW-25
R65
68
Q23
2SD1664 Q
R141
68
D1
XB15A308
C175
0.001
D13
XB15A308
C102
18 P
C103
0.001
D12
HSM88ASR
R140
470
L25
LA-238
C178
100 P
3
4
5
1
2
Q13
FMW1
C98
470
C108
470 P
C107
0.001
C97 0.001
C106
0.001
R66
2.2 k
L22
LA-243
D11
HSM88ASR
C101
0.001
C174
0.001
C176
470 P
C99
0.001
C100
24 P
C93
0.001
L20
82 nH
Q14
RN1404
Q12
2SB1143 S
R77
47 k
C109
1
C95
0.001
Q11
2SC2954
C94 12 P
C96
6.8
R63
15
R64
15
1
2
3
4
IC2
SC-1302
C89
0.001
R59
10
R60
1 k
C90 18 P
R58
100
R57
4.7 k
C88
0.001
Q10
2SC3775 3
D10
1SS196
R61
100
R62
1 k
C92
0.001
C207
C115
0.001
C86
0.001
R155
68
R56
4.7 k
L19
82 nH
C87
10 P
C91
0.001
HV
C82
12 P
R51
39 k
R50
390
Q9
2SC4215 O
L18
0.1 H
C84 18 P
R52
1 k
D9
MA862
R54
100
C85
0.001
R53
100
R55
2.2 k
C188
0.1
C200
0.1
C185
0.1
C83
0.001
L16
0.1 H
R47
68 k
C78
0.001
R46
680
C79
0.001
R49
68 k
R48
680
Q7
2SC4215 O
C80
5 P
Q8
2SC4215 O
L17
0.1 H
C198
0.1
u only
C81
20 P
5V
HV
R30
100 k
R31
47
L14
2.7 H
R33
82
R32
47
C64
0.5 P
C63
3 P
Q4
2SK210 GR
C62
4 P
C204
0.5 P
C203
7 P
C183
0.1
C182
0.1
C202
0.1
C59
10
C58
0.001
C56
0.1
C57
0.001
R29
27 k
L10
3.3 H
D6
MA363B
D7
MA363B
L12 LB258
D18
MA363B
C61
1 P
HV
C65
0.047
D8
MA363B
L13
LB-257
R34
1 k
L11
3.9 H
D19
MA363B
5V
C71
0.75 P
C69
0.001
C70
10
L15
2.7 H
R35 1 k
Q5
2SK210 GR
C67
2 P
C68
4 P
C205
4 P
Q6
2SK880 Y
C190
0.1
C77
0.1
R38
18 k
C73
0.047
C74
0.001
R40
47 k
R39
10 k
R36
1 k
R37
1 k
C72
0.001
C184
0.1
C197
0.01
5V
C124
3 P
L24
1.8 H
C123
7 P
C122
2 P
C121
8 P
L23
1.8 H
C120
4 P
C75
2.2
C119
0.001
R43
10 k
R42
8.2 k
C76
0.1
R41
560
R78
100
CP2
VCC1
1
IN1
2
ENB
3
CLK
4
DATA
5
T1
6
LOK
7
CP1
8
FI1
9
FO1
10
FO2
11
FI2
12
CP2
13
GND2
14
XO
15
XI
16
XB
17
VCC2
18
IN2
19
GND1
20
IC3
UPD3140GS
X1 CR-528
C118
33 P
C117
10 P
C116
15 P
R45
330
C114
0.001
R156
100
5V
R44
330
C113
0.01
DSC
DSC.C
HI/LO
C112
0.001
C111
0.022
Q15
RN1404
C110
0.1
R75
3.3 k
R74
2.2 k
R76
10 k
R73
220
R72
10 k
Q16
RN1402
R69
1.5 k
R68
100 k
C104
0.001
C105
0.1
C177
0.01
R70
10 k
R71 470
SP—
ICF3
SP+
AF2
J3
HSJ1493-01-010
J2
B07B-EH-S
C128
0.001
C127
0.001
C130
0.001
C129
0.001
AF1
PTT
HANG
GND
MIC
GND
AF2
R134
100
R113
270 k
HANG
TXDET
PTT
C134
0.0056
R112
1 k
C135
0.047
R114
1 k
R115
47 k u only
120 k e only
T5M
R116
18 k
1
3
2
4
5
IC4
TA75S558F
R104
47 k
R101
10 k
R103
47 k
R102
10 k
R144
6.8 k
R117
1 M
C191
100
C136
0.1
I/O
1
O/I
2
O/I
3
I/O
4
CONT.B
5
CONT.C
6
VEE
7
I/O
8
O/I
9
O/I
10
I/O
11
CONT.D
12
CONT.A
13
VDD
14
IC5
BU4066BCF
T5M
R120
330 k
R132
15 k
R133
39 k
R123
150 k
R122
82 k
R124
82 k
R125
82 k
C138
0.0033
R119
47 k
R118
82 k
RMUT
MIC.C
3
2
1
4
8
IC6a
M5218AFP 600C
C141
0.1
C142
10
C143
10
R126
39 k
R127
NTCCS20123NH
103KCT
R130
47 k
SQLV
R129
12 k
R128
12 k
R142 100
R131
8.2 k
5
6
7
IC6b
M5218AFP 600C
HV
R5
T5
C166
0.001
C195
0.1
C139
68 P
C140
0.0027
C144
0.1
5V
R5
T5
HVS
HV
C137
0.001
C151
1
R92
8.2 k
R93
1 k
C153
0.027
C154
0.0022
Q21
2SC2712 Y
Q22
2SC2712 Y
R99
33 k
R98
33 k
C156
10
C179
0.027
R145
18 k
R94
560 k
R96
2.7 k
C157
1
R105
0.1
R106
15 k
C158
0.001
R107
330 k
R108
100 k
D16
1SS226
C160
2.2
C159
0.22
C164
470
C133
0.001
C163
470
C161
2.2
C162
0.047
1
2
3
4
5
IC9
LA4425A
R109
4.7
C131
0.001
C165
0.1
HVS
BEEP
R143
33
C145
10
IC8
TA7805F
R97
330
R95
180 k
R88 10 k
C146
0.01
C180
0.1
C181
0.1
C147
0.01
C187
0.1
R89
2.2 k
C148
100
Q18
2SB1132 R
C155
820 P
R100
2.2 k
Q19
RN1404
Q17
RN1404
C150
0.001
Q20
2SB1132 R
R90
10 k
R91
2.2 k
C186
0.1
C149
0.001
C189
0.1
C152
0.22
R84
47 k
STR.
1
16
D
2
CLK
3
OE
15
Q1
4
Q2
5
Q3
6
Q4
7
Q5
14
Q6
13
Q7
12
Q8
OEX.STD
DATA
OEX.OE
CK
11
QS
9
QS
10
8
IC7
BU4094BCF
R85
47 k
R86
47 k
R87
47 k
RMUT
TMUT
OP.RST
SEND
RCV
DSC.C
MIC.C
HI/LO
RCV
SEND
C194
0.1
D17
DSA3A1
R154
10
SQLG
J1
B8B-2R-SM3-TF
1
2
3
4
5
6
7
8
SQLI
SQLV
HV
HVS
GND
VOL1
VOL2
HV
GND
from DC cable
C49
R16
C132
0.001
e only
D15
RD6.2M B2
e only
D14
1SS196
e only
C93
0.001
C8
0.001
L3
LA-149
C7
8 P
C5
15 P
C3
24 P
C1
15 P
L2
LA-243
L1
LA-253
C4
5 P
C6
C2
9 P
GND
GND
PI
VGG
VDD
PO
TMUT
DATA
UNLK
CK
P.STB
HI/LO
1
2
3
4
5
6
7
DET
O
G
I
R67
2.2 k
R111
2.7 k
1
2
3
4
5
6
7
8
9
10
11
J5
B11B-ZR-SM3-TF
DET
DSC
RMUT
5V
DATAM
ICF3
BUSY
PTT.S
OP.RST
GND
DATAS
from Microphone
GND
R79 47
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
J4
52559-3092
SP+
SP+
6
8
6
8
10
12
7
SP—
SP—
R147 47
C126
0.001
C125
0.001
BEEP
P.STB
SP+
TXDET
ICF3
SP—
R80
47
R82 47
R150 47
R148 47
PTT
OEX.OE
OEX.STB
CK
DATA
UNLK
HANG
SQL
PTT.S
TONE
DATAS
DATAM
SQL.C
BUSY
GND
GND
BUSY
R83 47
R81 47
R146 47
R149 47
R151 47
SQLV
9
10
11
12
13
14
16
17
18
19
20
21
7
9
11
13
14
16
18
20
17
19
21
15
15
C192
0.1
C193
0.1
5V
HVS
from
optional unit
to
LOGIC unit J1
IC1
TA31136FN
AFOUT
QUAD
IFOUT
OSCIN
OSCOUT
MIXOUT
VCC
IFIN
DEC
FILOUT
FILIN
N-DET
N-REC
MIXIN
9
10
11
12
13
14
15
16
ANT
R152 4.7 k u only
C171 0.1 u only
Q24 XP6501 AB u only
NOTE
e : [EUR]
u : [USA]
Rx: 2.2V
Rx: 5.1V
Rx: 3.5V
15.2MHz
Tx: 2.7V
(CH16)
Tx: 2.6V
Rx: 5.0V
Tx: 5.0V
5.0V
Tx: 2.6V
Rx: 1.5V
Rx: 0.5V
Rx: 2.5V
(CH16)
Tx(Hi): 7.8V
Tx(Lo): 5.0V
Tx(Hi): 4.9V
Tx(Lo): 0V
Rx: 4.9V
Tx: 2.5V
Rx: 0.3V