Icom IC-M302 Service Manual

C222 R164
C227
R163
R161
C221
C220
C230
C205R151
C224
R168
R56
C83
R53
C93
IC7
C106
R65
C91
R69
R62
C105
R67
R226
C92
C273
R225
C296
C216
C198
C199
R222
R221
Q31
C100R73
R71
C96
C305
R123C149
Q18
Q21
R122
L29
C145
C151
R110
C146
C140
R127
C161
C162
R143
R140
C176
R139
R138
C164
D21D22
C122
C235
R184
C304
R210
C306
R211
C255
C60
R212
D12
C119
C116
D13
D14
C127
R95
C126
C125
C115
L22
R84
R85
R83
C128
R92
R91
L36
C243
Q26
Q11
Q16
C241
C135
C124
R97
C130
R96
C138
L26
C51
R31
R203
R204
C246
C111
R33
R25
R28
D7D6
R14
C26
C25
C29
C22
R8
Q1
R5
C36
R21
R4
C16
R109
Q6
L4
R3
C9
C12
C14
R10
R9
C20
R7
D4
C46
R26
C34
R51
C68
J1
IC8
C76 R49
R47
C74
C73
C65R42C64
C259
X2
R213
R87
R89
Q12
Q22
R130
C257
R215
C298
C299
C300
C82
C85
R55
C99
R76
Q33
R165
R173
R182
C95
R181
R183
C206
Q5
R66 R64
R63 R45
Q36
R46
C274
R190 R191
R61 C90 R68
C89R162
C223 R167 R166
R169 R170 R171
R172 R174
R58
IC2
R57 C84
C226 C234
R189
C97
R75
C102
R78
C101
R74
C295
C294
C271
Q35
C272
R156
C217
C214
R152
C212
C297
R157
Q34
C280
R224
R278
R223
IC3
C279
C103
C301
C302 C303 C291
C208
J2
X1
F12
MP1
FI1
MP3
L9
REF
PWR
DEV
L31
C171
C174
L32
D1
C7
C3
C4
L2
L6L7L8
W2
L1
C8
C6
C5
L3D2
LOGIC
B—6015C
W1
C211
C213
MIC
F13
RSSI
VR/SQL
IC9
IC6
D25
C75
R48 C72 C71 C70
R50
R44
C249 C250
C77
R216
C248
R88
C117
R185
C236
C247
D11
C121
C120
C258
R86
C254
R214
C252
R36
Q4
R34
C55
R32 C48 C47
L10
Q2
C50
C49
R27
C244
C245
L35
R201
C242
C136
C42
L12
L13
C80
C44
R107
D17
R106
D16
C139
C11
C10
R6
C19 C18
R38
C23
R12
D5
C21
C24
C28
C30
C32
C31
R16
C15
C17
C13
D3
R2
C175
R132
C173
C180 C177 C178 R133
C172
R131
R135
R136
C181
Q20
R144 C183 R137
R141 R142
R126
C165 C166
R103
C114
C113
L21
R82
C112
R102
L23
C129
R81
R93
R94
Q13
Q14
Q15
R202
R41
D9
C63
IC1
C67R43
C61
R37 R35 C59
C292 C207
C35
C179 C182
R72
Q32
C275
C276
C277
C201 C202 C203
C185
R117
C152
C156
C153 C154 R124
L28
R111
C147 R148
R113
R108
R112
Q17
R116
Q23
C167
R188
C233
R179
C180
R177 R175
R178
C229
C232
R176 C231
C215
R155
R153
D26
Q25
R154
C88
1
1
30
SP+ SP— BEEP BPLVL SQLV HVS NC 5V 5V DSCENC WXDEC RMUTE DSCDEC PTTC RCV PTT SEND KEYM TMUTE SQL TXDET SQLC H/L BPF PSTB PCK PDATA UNLK GND GND
J1
to the LOGIC unit J1
15
PTT MICG MIC GND KEYM
J2
to HM-141
18
GND SQLV SQLI HV GND VOL2 VOL1 HVS
W1
to the VR/SQL boards
antenna
connector
SECTION 9 BOARD LAYOUTS
9-1 MAIN UNIT
•
TOP VIEW
9 - 1

Icom IC-M302 Specifications

General

Brand	Icom
Model	IC-M302
Category	Transceiver
Language	English