Icom IC-E90 Service Manual page 53

LOGIC UNIT
LA
LB
VIN
+3
3.05V
+3CPU
+3CPU
R152
PTT 47k
CPUHV
Q151
C103 R151
R153
0.001 1k
2SD2216
10k
R154 C101
C102
0.001
0.001 4.7k
R400
100k
1 VIN 5
CTRL
2
GND
C145 R143
3 4
NB VOUT
0.1 10k
C140
IC141
0.1
R139
NJM2370U32
10 5
4
D143
MA2S111
R145
1 2 3
10k
+3CPU
Q142
XP1501
R51 C150 C149 C148 C147 C146 R144
1M 0.01 47 0.001 22 0.1 4.7k
AFON
MUTE
MICC
PCON
CHGC
Q2
UN9115
1
ESIO
ESIO 2
ECK
ECK
3
1 8
A0 VCC
2 7
A1 WP R361 47k
C315 Q301
3 6
0.001
A2 SCL
5 XP1115
4
VSS SDA
IC2 R360
10k
HN58X24128FPI C14
47
CTSEL
LED3
C456 R457
22 220k
R458
47k R456 R455
47k 47k
CTCIN
IC5
C455 C454
TC4W53FU
0.0082 0.1
1 8 R452
CTCOUT
27k
2 7
3 6
4 5
R453 C451
47k 0.01
LC
+10V
VIN
+3
+3C +3C
VCC VCC
HV HV
3.10V
Q9 Q8
XP1501 2SB1132
D152 R460
1 5
MA2S111 2.2k
2 +3
4
3
C141 R148 R75 C75 C76
0.001 100k 4.7k 2.2 0.001
Q145 Q146 Q147
2SB1132 XP1501 2SB1132
3 4
R142
22k
3.12V
2
1 5
+3C LED3
R149 C143 C142 R140 C138 C139
10k 0.001 47 4.7k 4.7 0.001
AFON
MUTE
PTT
CHGC
+3
R247
47k
C247
5 CT3
100p
C243
8 7 6 5
R248
0.1
1M
4
IC241
C246 R249
C248
0.1 150k
NJM2904V 1
R246
1 2 3 4
68k
C244
R245
0.1 C240
82k 0.0015
R241
330k
R243
R244
82k 82k
CTCIN
C242
0.039
LED3
CTCSS
R331 R332
8.2k 82k
R454
R325 R326
1k
50k 50k
Q451
Q304 Q305 Q343
2SC4116
2SJ364 2SJ364 2SJ364
Q307
C452 R324
C453 UN9214
5.6k
0.001 0.01
EUR
R328 C320 R329 C321 R368
470k 0.001 470k 0.001 470k
R451
180k
EUR 430M 144M
XMOD
C347
4.7
+10V
AFV
+3
+3C
VCC
HV
3.13V
TX: 0V
RX: 5.83V
Q201
2SB1201
R203
68
C205
R205 10
68 R211
10k
5 4
R204
68 Q202
XP1501
R208
1 2 3
100k
R207 C162 C207 C208 R209 R210 C209 C211
1M 0.001 0.22 0.001 1k 12k 0.001 0.47
HV
+3CPU +3CPU
DETO DETO
MUTE MUTE
PTT PTT
CHGC CHGC
+3 +3
MIC3
MIC3
R88 C80 C81 R306
10k 100 0.001 2.2k
R89
R81
47k
82k
R84
120k
R307
Q311 100
XP5601
6 5 4
Q310
C17
XP6501 0.0022
6 5 4
R83 R82 R80
1 2 3
56k 56k 82k
C15 C16 1 2 3
R308
220p 0.0047
220k
R85
10k
R312 C314
120 0.22
R302
C306
330
22
R330 R321
R305 1k 15k
R364 R363 6.8k
120k 10
R366 R365
50k 50k
R340
68k
Q342
2SJ364
C348
22
C341 R367 C340 C326
0.001 470k 0.001 0.001
50M
CHG CHG
PATMP PATMP
VMOD
C10
0.01 XMOD
AFV
+3
+3C
DETO
VOLC VOLC
VCC
HV
MUTE
BEEP BEEP
NOISE NOISE
VSFT VSFT
V1C V1C
V2C V2C
V3C V3C
SD SD
REMO REMO
L140 R3C R3C
10µH
DICK DICK
DIUD DIUD
DATA DATA
DASTB DASTB
IOSTB IOSTB
TXC TXC
AM AM
WFM WFM
PDAUL PDAUL
PLSTB PLSTB
CK CK
WXALT WXALT
+10V
C26 C25
0.001 0.001
HV
+3CPU
DETO
PTT
CHGC
+3
R314
470
R310
C311
180k
R301 4.7
5.6k
C308 C318
0.0082 0.018
Q312
6 5 4
XP6501
R315 R309 C304
200k 56k 100p
C312
0.001
C313
1 2 3
47p
TX: 2.93V
RX: 0V
C305 R311 C310
47p 3.3k 47p
R313
3.3k
C317
MICIN
0.047
BEEP
MICIN
VMOD
XMOD
+10V
11 - 2
J1
C35 C41 C37 C32 C34 C36 C29 C30 C47
GND
47p 0.001 47p 0.001 0.001 47p 47p 47p 0.001 1
GND
2
GND
3
CHG
4
PATMP PATMP
5
VMOD
6
XMOD
7
AFV
8
+3
9
+3C
10
DETO
11
VOLC
12
VCC
13
HV
14
MUTE
15
BEEP
16
EXTM
17
NOISE
18
VSFT
19
V1C
20
V2C
21
V3C
22
SD
23
REMO
24
R3C
25
DICK
26
DIUD
27
DATA
28
DASTB
29
IOSTB
30
TXC
31
AM
32
WFM
33
PDAUL
34
PLSTB
35
CK
36
WXALT
37
INTSP
38
+10V
39
GND
40
C45
C24 C23 C43 C39 C27 C38 C44 C46
47p 56p 0.001 47p 47p 0.01 0.001 0.001 0.001
R11
12
HV
Q4
D6
2SB1201
R15
SB07-03C
12
W3
C198
C199 0.001
0.001
D5
MA133
C200 C13 R16 R20
0.001 0.001 1k 560
R19
10k Q10
2SD2216
Q11
UN9210
R18
820
CHGC
D253
R29
MA2S111
470
+3
R316
470
R336 C323 C316
10k 0.001 4.7
TX: 2.29V
RX: 3.12V
EXTM INTSP
R335 R319
1k 2.2k
Q302
2SB1462
R317 C324 R318 C325
220k 0.001 1k 0.001
C319 R320
47p 33k
S402
PTT
LOGIC UNIT (2)
to AF unit
J251
SP1
CS028014-12
MC1
EM-140