Icom VHF Marine Transceiver IC-M88 - Manual (Page 35)

11 - 2
DO2
DA5V
IC251 M62363FP-650C
VIN1
1
VOUT1
2
VOUT2
3
VIN2
4
VDD
5
LD 6
CLK
7
DI 8
VIN3
9
VOUT3
10
VOUT4
11
VIN4 12 VIN5 13
VOUT5 14
VOUT6 15
VIN6 16
DO 17
VDAREF 18
RESET 19
GND 20
VIN7 21
VOUT7 22
VOUT8 23
VIN8 24
R279
3.3k
R280
2.2k
C253
0.01
R278
27k
C271
47
R311
100k
R316
180k
R314
82k
R293
68k
R317
1.5k
R292
68k
C312
0.022
C315
0.1
C314
820p
C311
0.001
C313
820p
R312
100k
IC311
NJM2125F
1
2
3
4
5
C301
0.022
C293
0.033
R315
390k
R313
39k
C294
0.0018 C292
0.0068
C316
0.047
C262
0.033
R261
4.7k
R262
12k
R265
10k R266
5.6k
R264
8.2k
R271
56k
R270
15k
C267
0.0047
C266
150p
IC261
NJM2904V
1
2
3
4 5
6
7
8
R269
100k
R276
10k
R277
390k
IC281
TC4W66FU
1
2
3
4 5
6
7
8
R273
1k
R274
2.2k
C268
0.047
R272
150k
C261
0.015
C263
0.047
R263
47k
R387
1M
X381
CR-746
4.000 MHz
C393
27p
IC383
TC3W03FU
CE
1
XT
2
XT
3
GND
4
Q
5
A
6 B
7 VCC
8
C391
0.1
C394
120p
R388
1k
C392
27p
C265
0.001
R275
180k
IC282
TC4W53FU
1
2
3
4 5
6
7
8
C272
0.47
R284
100k
C269
0.01
R267
10k
C281
0.01
R283
100k
Q291
XP4601
1
2
3 4
5
6
C302
0.0022
R306
68k
R305
100k
R291
68k
C291
0.01
R297
10k
R296
15k
R307
1.2k
R298
4.7k
R294
10k
R281
100k
R282
100k
C270
1 C395
0.1
R389
10k C398
12p
Q381
DTC144EU
SQCON
SQLOUT
BEEPO
MOCON
T1CON
T2CON DTCON
WDECV
WDECV
DET
OUT
SCLK
DA5V
DA5V
DA5V
DA5V
T4CON
T3CON
DASTB
MODIN
CDTENC
CTFIS CTFIS
CTFIS
CTFIS
DETMS
DETMS
DETMS
RXDEC
RXDEC
CDECV
CDECV
R5V
SRXMS
SRXMS
SRXMS
DETIN
SDATA
DET
VOLIN
AG3V
AG3V AG3V AG3V
CKSIS
S5V
S5V
S5V S5V
S5V
R5V R5V
R5V
DET DET
DET
S5V
S5V S5V S5V
S5V
S5V
S5V
VOLIN BEEPO
FRCON
S5V
DETIN
S5V
1 MHZ
CKSIS
AG3V
DET
C195
0.001
C72
0.001
L62
0.1 H
R71
68k
L191
0.47 H
C135
7p
C63
0.001
C134
24p
R62
68k
C106
0.001
R113
4.7k
C129
0.001
R103
68
R94
1.5k
Q91
2SC5110
Q62
2SC4215
Q191
3SK299
L92
27 H
L112
60nH
R96
3.3k
C74
56p
C126
18p
C73
12p
MP41
R131
82k
C75
56p
L132
32nH
R101
4.7k
R91
1k
C121
56p
R192
100
C97
47p
R93
10k
Q61
2SC4215
D91
MA77 L123
50nH
Q71
2SC4215
L71
0.1 H
C105
0.001
C62
7p
D121
RB706F-40
C136
9p
R122
151
C114
47p
R112
10
R114
100k
L124
2.7 H
R98
100
C194
0.022
C99
0.001
C61
0.001
R72
220
C193
56p
CP131
ANT
J41
1
2 C133
11p
R64
47k L61
0.1 H
L72 33nH
R132
10k
C132
22p
C127
0.001
R102
33k
C123
15p
C103
100p
R97
10 R92
100
R193
3.3k
C131
0.001
C112
0.001
C71
2p D92
MA77
D131
1SV307
C92
0.001
C111
100p
C65
18p
C115
0.001
R121
15k
C104
0.1
L122
22nH
L102
18nH
EP101
C98
0.001
C145
0.001
R111
10
C91
9p
C64
0.1
C128
47p
C122
8p
C113
0.1
C107
22p
R95
470
IC141
TA75S01F
1
2
3
4
5
R149
1k R148
100
R142
39k
R147
150k
R146
10k
R143
2.2k
C137
0.001
C143
0.1
C141
0.1
R144
2.7k
R145
12k
R141
150k
D141
MA2S728
Q141
DTA144EU
C144
0.01
L151
50nH L152
50nH
L154
56nH
C151
9p
C152
10p C153
3p D151
1SV307 D152
MA77
C157
27p
C159
2.5p
D154
HVU350B
C156
6p
R153
220k
R154
10k
C160
1p
D155
HVU350B
C161
56p R155
220k
R156
10k
C163
4p L155
56nH
C164
7p
R165
100k
R166
270k R167
470 C165
0.001 C166
47p
Q165
3SK294
C171
0.47
C181
0.001
C184
2.5p
C182
82p
C183
0.001
C185
1p
R181
820
R182
220k
D181
HVU350B
L166
56nH
D182
HVU350B
C186
33p
C187
0.001
C188
6p L181
56nH
R183
10k
R184
220k
R185
10k
R186
4.7k
C189
5p
R191
120
R206
4.7k R205
470
R204
12
R203
470
R202
10k R201
1k C202
27p
C201
0.001
L203
0.1 H
L165
1 H
C167
0.01
FI211
FL-353
R211
1k C211
0.001
C213
6p
Q171
2SK1829
Q111
RD07MVS1
Q101
RD01MUS1
D132
1SS375
R65
100
Q41
2SC4226
Q51
2SC4226
Q81 XP1214
1
2
3 4
5
Q82
DTC144EU
L41
80nH
L81
3.3 H
R42
3.9k
R41
1.5k
R43
4.7
R81
330
R52
5.6k
R51
2.7k
R53
4.7
R82
390
C42
47p
C41
5p C43
12p
C82
12p
C56
0.01
C57
0.5p
L82
3.3 H
C54
18p
R83
10k
C81
12p
C46
0.75p
C83
47p
R63
4.7
C142
0.001
C191
0.001
C192
47p
C31
20p
C96
0.001
MP111
L121
10.5nH C124
0.001
C125
15p
R152
22k L153
1 H
R151
100
C154
0.001
C155
0.001
C138
1p
C203
8p
C168
6p
L156
56nH
W91 W92 W101 W102
W201 W202
C210
4.7
T5V
EP111
T5V T5V
T1CON
T1CON
T1CON T2CON
RSSIV
RSSIV
ATTS
T4CON T3CON
TXMS
VCOS
R5V R5V
V5FV
PLLIN PLLIN
TDETV
S5V
RSSIV
S5V
S5V
RSSIV
S5V
S5V
T4CON T3CON T2CON
DET
VCOS
T5V
VCC
VCC VCC
31.05 MHz
RSSIV
DO2
PLLIN
R5V
C158
0.001 C162
0.001 D153
1SV307
S5V S5V
A
TTS
TXMS TDETV
T1CON
DO1
A
B
C
R61
100 C45
0.01 C44
470p
C172
0.001
R175
10k
R173
5.6k
R172
470k
R171
10k
D171
MA2S111 C173
47p
L131
30nH
R133
15k
MAIN UNIT
CKSIS
S5V
S5V S5V
S5V
VCO CASE
1
2
3
Common
Transmit
Receive
Power
supply
4.97V
TX: 0.0V
RX: 0.89V
TX: 0.0V
RX: 4.20V
TX: 3.52V
RX: 3.46V
TX: 3.51V
RX: 3.42V
TX: 1.87V
RX: 0.0V
TX: 1.10V
RX: 0.36V
TX: 4.86V
RX: 0.0V
TX: 0.0V
RX: 4.95V
TX: 0.0V
RX: 3.59V
TX: 0.0V
RX: 1.86V
TX: 0.0V
RX: 3.22V
TX: 0.0V
RX: 3.22V TX: 0.93V
RX: 4.42V
2.11V
2.11V
2.11V
CTCS mode: 5.00V
TX: 0.0V
RX: 1.71V
TX: 0.0V
RX: 3.61V