Icom IC-M91D Service Manual Addendum

August 2012
6
SECTION 7
.
BOARD LAYOUTS
The combination of top side and bottom side of this
C410
C419
EP4EP5
EP6
EP7
J292
H0H5H10
V0 V5 V10
• RF UNIT (For [USA], [EXP], [AUS])
(TOP VIEW)
• MIC UNIT
(TOP VIEW)
• RF UNIT (For [CHN], [EUR], [UK], [FRG], [HOL])
(TOP VIEW)
• MAIN UNIT
(TOP VIEW)
SP1 (CHASSIS)
DB7
DB6
DB5 DB4
DB3
DB2
DB1
DB0
CS
CPU3V
CPU3V
CPU3V
GND
GND
RESETB
CD
WR0
LOINV
PTTIN
FCON
F
MOD
MP26
MP22
MP22
MP362
MP25
MODC
WETIN
TDETV
DIST
NOIZU
RSSIV
T1CON
SQL
DET
PW
CPU3V
UNLK
SCKO
SDATAO
PLSTBO
S3V
LOW
TXMS
T5VS
RVS
M5VS
LEDV
TEMPV
GND
GND
GND
GND
GND
M5V
VCC
VCC
LOINV
PTTIN
FCON
F
MOD
MP26
MP22
MP22
MP25
MODC
WETIN
TDETV
DIST
NOIZU
RSSIV
T1CON
SQL
DET
PW
CPU3V
UNLK
SCKO
SDATAO
PLSTBO
S3V
LOW
TXMS
T5VS
RVS
M5VS
LEDV
TEMPV
GND
GND
GND
GND
GND
M5V
VCC
VCC
C351
C524
D350
D358
DS240 DS241
DS242
DS243
542SD442SD
DS247
942SD842SD
DS250
IC364
J260
MC250
Q350
Q354
Q361
R240
R248
R351 R352
R353
R395
R449
R605
R606
R618
R639
R640
R641
H0H5H10H15H20H25H30H35H40H45H50H55H60H65H70H75H80H85H90H95H100H105H110
V0 V5 V10 V15 V20 V25 V30 V35 V40 V45 V50
C6
C8
C9
C12
C20
C21
C22
C25
C26
C27
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C50
C51
C52
C53
C54
C55
C61
C62
C63
C65
C67 C68
C69
C70
C71
C72
C73
C74
C75
C80
C81
C82
C83
C84
C85
C86
C89
C90
C91
C94
C95
C96
C97
C98
C99
C100
C101
C102 C103
C104
C109
C110
C111
C112
C113
C114
C115
C116
C117
C119
C120
C121
C122
C131
C133
C140
CP1
D20
D21
D22
D50
D51
D52
D90
D91
D92
D93
D130
D131
D353
EP2
EP3
FI150FI151
FI170
J280
L1
L20
L21
L22
L23
L24
L25
L26
L50
L51
L53
L55
L56
L57
L58
L80
L81
L82
L90
L92
L93
L96
L97
L98
MP20
MP20
MP23
Q20
Q21
Q22
Q23
Q24
Q25
Q50
Q53
Q54
Q90
Q150
R1
R2
R6
R7
R20
R23
R24
R25
R26
R27
R28
R29R30
R31
R32
R33
R34
R35
R47
R50
R52
R53 R54
R55
R56
R57
R71
R72
R75
R76
R80
R91
R93
R94
R95 R96
R97
R103
R104
R105 R107
R109
R110
R111
R113
R115
R120
R121R122
R171
R380
R542R543
S250
X1
X170
LV
H0H5H10H15H20H25H30H35H40H45H50H55
V0 V5 V10 V15 V20 V25 V30 V35 V40 V45 V50
C6
C8
C9
C12
C20
C21
C22
C25
C26
C27
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C50
C51
C52
C53
C54
C55
C61
C62
C63
C65
C67 C68
C69
C70
C71
C72
C73
C74
C75
C79
C80
C81
C82
C83
C84
C85
C86
C89
C90
C91
C94
C95
C96
C97
C98
C99
C100
C101
C102 C103
C104
C109
C110
C111
C112
C113
C114
C115
C116
C117
C119
C120
C121
C122
C131
C133
C140
CP1
D20
D21
D22
D50
D51
D52
D90
D91
D92
D93
D130
D131
D353
EP2
EP3
FI150FI151
FI170
J280
L1
L20
L21
L22
L23
L24
L25
L26
L50
L51
L53
L55
L56
L57
L58
L80
L81
L82
L90
L92
L93
L96
L97
L98
MP20
MP20
MP23
Q20
Q21
Q22
Q23
Q24
Q25
Q50
Q53
Q54
Q90
Q150
R1
R2
R6
R7
R20
R23
R24
R25
R26
R27
R28
R29R30
R31
R32
R33
R34
R35
R47
R50
R52
R53 R54
R55
R56
R57
R71
R72
R75
R76
R80
R91
R93
R94
R95 R96
R97
R103
R104
R105 R107
R109
R110
R111
R113
R115
R120
R121R122
R171
R380
R542R543
S250
X1
X170
LV
H0H5H10H15H20H25H30H35H40H45H50H55
V0 V5 V10 V15 V20 V25 V30 V35 V40 V45 V50

Icom IC-M91D Specifications

General

Brand	Icom
Model	IC-M91D
Category	Transceiver
Language	English