Icom IC-T90A Marine Radio User Manual


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11 - 1
11 - 1 LOGIC UNIT
SECTION 11 VOLTAGE DIAGRAM
AFON
CPUHV
PTT
+3CPU
+3
VIN
MUTE
MICC
PCON
CHGC
ESIO
ECK
CTSEL
LED3
CTCIN
+10V
CTCOUT
LA
LB
LC
C88
68p
C5
0.001
R27 47k
C90
0.001
C20
22p
R53
68k
R17 1k
R91
10k
C401
1
R146
10k
S1008
S1018
D141
MA2S111
S1021
C95
1
R14
47k
R28
1k
C96
1
S1007
R10
10k
S1016
R333
22k
L24 10µH
R141
15k
C154
0.001
D91
1SS372
S1011
S1005
C92
0.001
C8
0.1
R23
1k
C97
2.2
S1022
C152
0.01
R1
47k
R34
100
D300
1SS372
S1010
C919
0.01
1
P96/AN6
2
P95/AN5
3
P94/AN4
4
P93/AN3
5
P92/AN2
6
P91/AN1
7
P90/AN0
8
P87/TA7IN
9
P86/TA7OUT
10
P85/TA6IN
11
P84/TA6OUT
12
P83/TA5IN
13
P82/TA5OUT
14
P81/TA4IN/INT5
15
P80/TA4OUT/INT5
16
CNVSS
17
XCIN
18
XCOUT
19
RESET
20
XOUT
21
VSS
22
XIN
23
VCC
24
P77/NMI
25
P76/INT2
26
P75/INT1
27
P74/INT0
28
P73/CTS2/RTS2
29
P72/CLK2
30
P71/RXD2/SCL
31
P70/TXD2/SDA
32
P67/TXD1
33
P66/RXD1
34
P65/CLK1
35
P64/CTS1/RTS1/C
36
P63/TXD0
37
P62/RXD0
38
P61/CLK0
39
P60/CTS0/RTS0
40
P57/CKOUT
41
P56/INT3
42
P55/TB5IN
43
P54/TB4IN
44
P53/TB3IN
45
P52/TB2IN
46
P51/TB1IN
47
P50/TB0IN
48
P47/TA3IN/INT4
49
P46/TA3OUT/INT4
50
P45/TA2IN
51
P44/TA2OUT
52
P43/TA1IN
53
P42/TA1OUT
54
P41/TA0IN
55
P40/TA0OUT
56
P35
57
P34
58
P33/KI19
59
P32/KI18
60
P31/KI17
61
P30/KI16
62
P27/KI15
63
P26/KI14
64
P25/KI13
65
P24/KI12
66
P23/KI11
67
P22/KI10
68
P21/KI9
69
P20/KI8
70
P17/KI7
71
P16/KI6
72
P15/KI5
73
P14/KI4
74
P13/KI3
75
P12/KI2
76
P11/KI1
77
P10/KI0
78
SEG47/P07
79
SEG46/P06
80
SEG45/P05
81
SEG44/P04
82
SEG43/P03
83
SEG42/P02
84
SEG41/P01
85
SEG40/P00
86
SEG39/P127
87
SEG38/P126
88
SEG37/P125
89
SEG36/P124
90
SEG35/P123
91
VCC
92
SEG34/P122
93
VSS
94
SEG33/P121
95
SEG32/P120
96
SEG31/P117
97
SEG30/P116
98
SEG29/P115
99
SEG28/P114
100
SEG27/P113
101
SEG26/P112
102
SEG25/P111
103
SEG24/P110
104
SEG23/P107
105
SEG22/P106
106
SEG21/P105
107
SEG20/P104
108
SEG19/P103
109
SEG18/P102
110
SEG17/P101
111
SEG16/P100
112
SEG15
113
SEG14
114
SEG13
115
SEG12
116
SEG11
117
SEG10
118
SEG9
119
SEG8
120
SEG7
121
SEG6
122
SEG5
123
SEG4
124
SEG3
125
SEG2
126
SEG1
127
SEG0
128
COM3
129
COM2
130
COM1
131
COM0
132
C2
133
C1
134
VL3
135
VL2
136
VL1
137
VSS
138
P132/DA2
139
P131/DA1
140
AVSS
141
P130/ADTRG/DAO
142
VREF
143
AVCC
144
P97/AN7
C91
0.001
C7
0.001
C40
18p
C89
0.001
R2
100k
R33 1k
C99
1
C400
1
C151
0.001
12
3
45
C11
0.01
S1020
R9
120k
R93
47
S1001
EP141
MMZ1608Y102BT
R8
47k
S1019
R22 100
R56
4.7k
1
OUT
2
VDD
3
VSS NC
4
CD
C57
0.001
C4
18p
C98
0.1
EP142 MMZ1608Y102BT
S1004
S1012
R39
47k
C93
0.001
R21 1k
C55
0.001
X1
CR-687 6.7584 MHz
DS4
TTR5169 UPFDHW
1
COM0
2
COM1
3
COM2
4
COM3
5
SEG37
6
SEG36
7
SEG35
8
SEG34
9
SEG33
10
SEG32
11
SEG31
12
SEG28
13
SEG27
14
SEG26
15
SEG25
16
SEG24
17
SEG23
18
SEG22
19
SEG21
20
SEG20
21
SEG19
22
SEG18
23
SEG17
24
SEG16
25
SEG15
26
SEG14
27
SEG13
28
SEG12
29
SEG11
30
SEG10
31
SEG9
32
SEG8
33
SEG7
34
SEG6
35
SEG5
36
SEG4
37
SEG3
38
SEG2
39
SEG1
40
ESG0
R40
12k
1
2
3
45
6
7
8
R13
47k
D60
MA2S111
[USA], [CAN]
only
I3
I2
I1
D56
MA2S111
except [GEN]
D53
MA132WK
except [GEN]
D51
MA132K [USA], [CAN]
MA132WK [GEN], [SEA]
D52
MA132K
R35
1k
S1006
C33
47p
C94
0.1
S1015
S1003
R24 100
C920
0.01
R147
47k
D58
MA6S121
S401
C9
0.001
R12
47k
R54
10k
C153
47p
S1002
S1014
C12
0.01
R32
100
C3
15p
C402
1
C403
1
D301
1SS372
D302
1SS372
C404
1
C405
1
R459
10k
R55
100k
EP3 MMZ1608Y102BT
COM0
COM2
COM3
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
SEG19
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG31
SEG32
SEG33
SEG35
SEG36
SEG37
SEG34
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
KSD2
KSD3
KSD4
KR0
KR1
KR2
KR3
I0
I1
I2
I3
KS0
KS1
KS2
COM0
COM1
COM2
COM3
SEG0
SEG1
CONT1
CONT1
CONT1
CONT0
CONT0
CONT0
RLED
GLED
LCDL
SEG20
COM1
RXD0
CLK0
P60
KR3
KR2
KS2
KS1
KS0
KR1
I0
VOLDN
VOLUP
SQL
ESIO
ECK
50M
KS3
KR0
KR3
KR2
KR1
KR0
KS3
DTCS
CTSEL
CTSEL
PTT
CHGC
CTCOUT
BEEP
SQL
TXC TXC
BUSYL
VOLUP
VOLDN
VOLC
MUTE
NOISE
NOISE
R3C
R3C
RESET RESET
WFM
AM
WFM
AM
CLSFT
CLSFT
CLIN CLIN
MICC
AFON
CLOUT CLOUT
CLIN CLIN
CLOUT
CLOUT
CLIN
CHG
PCON
CPUHV CPUHV
VINVIN
EUR
POWER
+3CPU
+3CPU
+3CPU
+3CPU
VSFT
V2C
V1C
V3C
+3+3
+3
CHG
B0B1B2B3
TXF50TXFVTXFU
SQL
LED3
PLSTB PLSTB
CK CK
DATA DATA
DASTB DASTB
IOSTB IOSTB
SD SD
CTCIN CTCIN
WXALT
PAT MP PATM P
PDAUL PDAUL
VSFT
V2C
REMO REMO
VIN
VIN
VIN
VIN
REMO REMO
TXC
R92
47
R68
220
R42
680
1
2
3
4
5
DS2
LNJ310M6URA
RG
DS6
CL-165HR
R67
680
R4
270
RG
DS11
CL-165HR
R66
220
RG
DS8
CL-165HR
R70
220
R61
680
R47
120
R69
680
R43
180
RG
DS7
CL-165HR
DS1
LNJ310M6URA
R72
220
RG
DS9
CL-165HR
R63
680
R71
680
R62
220
R46
120
R
G
DS5
CL-165HR
1
2
3
5
DS3
LT1EP53A
R74
220
R65
680
R
G
DS10
CL-165HR
R73
680
R64
220
R
G
DS12
CL-165HR
R5
270
RLED
GLED
LCDL
TXC
BUSYL
TXC
BUSYL
LED3
4
+3CPU +3CPU
XOUT
CHG
RESET
+3CPU
+3CPU
XOUT
+3
+3
+3
+3
+3
+3
+10V +10V
POWER
CNV5S CNV5S
P74 P74
TXD0 TXD0
5
POWER POWER
DIUD
DICK
V1C
V3C
CHG
DTCS
CTSEL
50M
430M
144M
EUR
+3CPU
POWER POWER
J2
1
2
3
4
5
6
7
8
9
R38
100k
TXD0
P74
RESET
RESET RESET
CNV5S
+3CPU
P60
RXD0
CLK0
Q40
UN9215
Q91
2SD2216
IC1
M30220MA-114RP
except [USA]
M30220MA-116RP
[USA] only
IC92
TC7S66FU
IC142
S-80928CNMC
Q141
2SD2216
IC91
TC7W04FU
Q3
XP1214
Q6
XP1214
Q1
UN9115
9.0V
LOGIC UNIT (1)
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