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Icom AT-141 Service Manual

Icom AT-141
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VOLTAGE LINE
Explanatory notes
COMMON LINE
PULSE
RESET
5V
0V
60mS
WHILE TUNING: 0.7
NORMAL: 13.6
33
34
35
36
37
13.6
47
0.0047
C55
13.6
13.6
0.0047
C64
5V
-
++
-
10k
R41
5V
3
IC4 BU4094BCFV
1
2
3
17
30p
C88
30p
C87
R73 1k
C85 0.22
D22 MA2S111
L18 100µ
0.0047
C74
47k
R67
CR567
X1
470p
C78
1k
R72
8
9
10
11
12
13
14
1
2
3
6
5
4
7
IC5 TC74HC393AP
2QD
2QC
2CK
VDD
2CR
2QA
2QB
VSS
1QD
1QB
1QC
1QA
1CR
1CK
5V
5V
5V
Z
PH
1SS133
D78
100k
R200
0.0047
C181
100k
R66
S-80841CLUA
IC7
3
1
2
O
G
I
0.0047
C73
5
6
7
8
4
3
2
1
5
6
7
8
4
3
2
1
IC16 TC7W74FU
IC6 TC4013BP
Q
CLR
PR
VCC
GND
Q
D
CK
5V 5V
5V
13.6
13.6
47
C56
0.0047
C55
0.0047
C57
1N4002
D19
TA7805S
IC20
E
+5V
IN
5V
13.6V
KEY
13.6
STAR
ANTC
E
CP25
CP502
CP505
NOTE:UNLESS OTHERWISE SPECIFIED:RX
THAT SHORT J13 AND ONLY RL1 IS ON.Tx with 2MHz/10W.
NOTE:WAVEFORM WITH MARK IS MEASURED AT TX WITH THE CONDITION
7.8V
7.3V
13.6
10
C82
0.0047
C81
0.0047
C81
L24 100µ
L20 HF70ACC635050
L22 HF70ACC635050
100k
R57
0.0047
C62
MA700
D80
S2
22k
R56
47k
R156
56k
R198
47k
R204
47k
R203
Q7
3.3k
R58
15k
R59
0.0047
C65
2SC2458
Q8
0.0047
C64
100µ
L25
5V
13.6
5V
5V
HSB88WS
D81
0.2V
Z<50 0
Z>50 5.0
2.5V
0.9V
INDUCTIVE : 5.0V
CAPACITIVE: 0V
2.0V
2Vp-p
3Vp-p
0.0047
C165
R51 68
5V
10k
R194
0.0047
C172
4.7k
R12
680
R54
0.047
C174
100µ
L28
10µ
L31
0.0047
C163
47
R6
2SC2668
Q2
39k
R53
1SS301
D85
5.6k
R196
1k
R195
100µ
L29
10µ
L32
0.047
C5
330
R4
0.1
C50
2SK241
Q1
470k
R5
0.047
C1
D2 MA862
0.0047
C164
4.7k
R10
0.22
C75
0
R257
1k
R1
330p
C4
220p
C3
2.2k
R9
10k
R8
MA732
D1
10p
C2
22
R3
22
R2
L1
LR-22A
22p
C6
10
R14
D5 HSM88ASTR
180p
C8
10p
C7
MA732
D7
MA732
D8
330p
C12
22p
C162
2.2k
R151
R258 100
LR-17
ANT
L35
R262 100
R263 100
D86 MA732
L36 HF50ACC322513
R259 33k
47k
R25
LR-116
L3
LR116
L2
C14 0.047
47
R30
LR-19
L4
4.7k
R150
C10 0.0047
C9 33
R13 220
R11 2.2k
C11 0.047
R15 10k
R193 330k
MA700
D77
TA75393FS
IC19b
4
5
-
+
8
7
6
1
8
3
2
TA75393FS
IC19a
C16 0.0047
220k
R34
220k
R33
2.2k
R191
8.2k
R192
1SS301
D9
0.0047
C173
+
-
EL204HD
DS24
R149 470
0.0047
C153
0.0047
C89
47
R29
10k
R41
10k
R40
10k
R39
2.2m
L5
30p
C20
10p
C19
82
R43
10
R190
J13
R253 56k R157 30k
R68 47k
R19 220
R20 220
R21 220
5V 5V
5V
5V
5V
5V
5V
OFF: 13.6
EACH RELAY ON: 0.7
0V
5V
1.4µS
RL4,RL25∼RL27 IS ON: 40mS
RL3,RL5 ∼RL24 IS ON: 15mS
SL-811UT×11
DS13–DS23
SL-311UT×12
DS1−DS12
J4
CP15
AJQ1341
RL2
SA05C
R45
47k
R46
QSGND
IC4 BU4094BCFV
Q‘S5
Q8
Q7
Q6
Q5
OE
V+
Q4
D
CLK
Q1
Q2
Q3
9
10
11
12
13
14
15
16
7
6
1
2
5
4
3
STR
8
8
Q14
Q13
Q12
Q15
Q16
Q17
Q18
R90 470
R89 470
R88 470
R87 470
R86 470
R85 470
R84 470
R94 470
R93 470
R92 470
R103 470
R102 470
R101 470
C7
C6
C9
C8
C3
C5
C4
Q35
Q34
Q37
Q36
Q31
Q33
Q32
Q25
Q24
Q27
Q26
Q28
Q21
Q23
Q22
Q15
Q14
Q17
Q16
Q18
Q11
Q13
Q12
7
6
1
2
5
4
3
AJQ1341
RL2
CO1
CO2
CO3
CO4
CO5
CO6
CO7
CO8
CO9
LO12
LO11
LO10
LO9
LO8
LO7
LO6
LO5
LO4
LO3
LO2
LO1
COUT
CRED
1.2k
R178
DS12
1.2k
R177
DS11
1.2k
R176
DS10
1.2k
R175
DS9
1.2K
R174
DS8
1.2k
R173
DS7
1.2k
R172
DS6
1.2k
R171
DS5
1.2k
R170
DS4
1.2k
R169
DS3
1.2k
R168
DS2
1.2k
R167
DS1
1.2k
R181
DS15
1.2k
R182
DS16
1.2k
R183
DS17
1.2k
R184
DS18
1.2k
R185
DS19
1.2k
R186
DS20
1.2k
R187
DS21
1.2k
R188
DS22
1.2k
R189
DS23
1.2k
R180
DS14
1.2k
R179
DS13
HF70ACC635050
L34
47k
R162
1k
R76 100k
0.22
C84
C279 0.1
C280 0.1
1SS133
D79
R78 480k
220k
R77
10k
R236
10k
R237
R201
220k
R202
2SC2458
Q11
1k
R42
4.2V
4.9V
11.5V
5.5V
2Vp-p
LR-19
R24 270
R23 330
R22 330
R18 270
R17 330
R16 330
COUT
2.2k
R36
0.0047
C22
RN1204
Q3
0.0047
C15
47k
R26
56k
R35
2.2k
R27
R242 0
R243 0
R244 0
5Vp-p
TUNE
330p
C13
MA732
D12
MA732
D11
C17 0.1
47k
1k
R71
R37
R249 47k
R250 47k
330p
C21
C79
MA732
470p
C94
0.0047
C91
0.0047
C284
0.0047
D14
MA732
D13
47
R28
0.047
C18
47k
R31
R32 47
R251 47k
1k
R38
2SC2458
Q5
220
R44
0.047
C23
2SC2458
Q4
10k
R40
30p
C20
13.6
13.6
13.6
QSGND
IC3 BU4094BCFV
Q‘S5
Q8
Q7
Q6
Q5
OE
V+
Q4
D
CLK
Q1
Q2
Q3
9
10
11
12
13
14
15
16
7
6
1
2
5
4
3
STR
8
Q11
Q24
Q23
Q22
Q21
Q34
Q33
Q32
Q31
IC4 BU4094BCFV
Q‘S5
Q8
Q7
Q6
Q5
OE
Q4
D
CLK
Q1
Q2
Q3
9
10
11
12
13
14
15
16
STR
V+
L7
L1
L2
L3
L4
L5
L6
LO1
LO2
LO3
LO4
LO7
LO5
LO6
µPA2004GR
IC11
SK
O7
O6
O5
O4
O3
O2
O1
VSS
I7
I2
I3
I4
I5
I6
9
10
11
12
13
14
15
16
8
7
6
1
2
5
4
3
I1
C211 0.0047
C210 0.0047
C209 0.0047
C208 0.0047
C207 0.0047
C206 0.0047
C205 0.0047
C212 0.0047
C213 0.0047
C214 0.0047
C215 0.0047
C216 0.0047
C217 0.0047
C218 0.0047
C5
COUT
C1
C2
C3
C4
C_OUT
C_IN
CO1
CO2
CO5
CO3
CO4
µPA2004GR
IC13
SK
O7
O6
O5
O4
O3
O2
O1
VSS
I7
I2
I3
I4
I5
I6
9
10
11
12
13
14
15
16
8
7
6
1
2
5
4
3
I1
C261 0.0047
C260 0.0047
C259 0.0047
C258 0.0047
C257 0.0047
C256 0.0047
C266 0.0047
C267 0.0047
C268 0.0047
C269 0.0047
C270 0.0047
C271 0.0047
C272 0.0047
C9
C6
C7
C8
10
11
12
13
14
15
16
CO6
CO9
CO7
CO8
µPA2004GR
IC14
SK
O7
O6
O5
O4
O3
O2
O1
VSS
I7
I2
I3
I4
I5
I6
98
7
6
1
2
5
4
3
I1
C276 0.0047
C275 0.0047
C274 0.0047
C273 0.0047
C265 0.0047
C264 0.0047
C263 0.0047
C262 0.0047
AT T
L8
L9
L10
L11
L12
CRED
LO8
LO9
LO10
LO11
AT T_ O
LO12
C_RED
µPA2004GR
IC12
SK
O7
O6
O5
O4
O3
O2
O1
VSS
I7
I2
I3
I4
I5
I6
9
10
11
12
13
14
15
16
8
7
6
1
2
5
4
3
I1
C226 0.0047
C227 0.0047
C228 0.0047
C229 0.0047
C230 0.0047
C231 0.0047
C232 0.0047
C219 0.0047
C220 0.0047
C221 0.0047
C222 0.0047
C223 0.0047
C224 0.0047
C225 0.0047
R222 2.2k
R223 2.2k
R220 2.2k
R221 2.2k
R218 2.2k
R219 2.2k
C195 0.0047
C194 0.0047
R224 2.2k
C196 0.0047
C193 0.0047
C192 0.0047
C191 0.0047
C190 0.0047
R99 470
R98 470
R97 470
R96 470
R95 470
CRED
L12
L9
L11
L10
C2
C1
COUT
R229 2.2k
R230 2.2k
R227 2.2k
R228 2.2k
R225 2.2k
R226 2.2k
C202 0.0047
C201 0.0047
C200 0.0047
R216 2.2k
R217 2.2k
R256 0
C189 0.0047
R231 2.2k
R232 2.2k
C204 0.0047
C203 0.0047
R215 2.2k
C188 0.0047
C199 0.0047
C198 0.0047
C197 0.0047
R108 470
R107 470
R106 470
R105 470
R104 470
L5
L4
L1
L3
L8
L7
L6
L2
R214 2.2k
R212 2.2k
R213 2.2k
R210 2.2k
R211 2.2k
C187 0.0047
C186 0.0047
C185 0.0047
C184 0.0047
C183 0.0047
C182 0.0047
1SS301
D52
C34
RL3
0.0047
C_OUT
AP03311
RL6
AP03311
22
R212
1SS301
D55
C100
0.0047
22
1SS301
D12
C48
0.0047
AJQ1341
RL1
CHASSIS
W502
CHASSIS
W501
1SS301
D16
GND
GND
RF
AP03311
RL5
AP03311
1SS301
D54
C98
0.0047
22
1SS301
D56
C102
0.0047
22
R111
LO1
C_IN
CO9
CO8
CO6
CO7
CO5
CO4
CO3
CO2
CO1
C_RED
C_OUT
AT T
LO2
LO3
LO4
LO5
LO6
LO7
LO8
LO9
LO10
LO11
LO12
R110
R109
AP03311
1SS301 1SS301
D57
C104
0.0047
R112
RL9
AP03311
D58
C106
0.0047
22
22
R113
RL10
AP03311
1SS301
D59
C108
0.0047
22
R114
RL11
AP03311
1SS301
D60
C110
0.0047
22
R115
RL12
AP03311
1SS301
D61
C112
0.0047 0.0047
22
R116
RL13
AP03311
1SS301
D62
C114
22
R117
RL15
AP03311
1SS301
D64
C118
0.0047
22
R118
RL14
AP03311
RL25
AR39251
RL26
AR39251
RL27
AR39251
RL4
AR39251
1SS301
D63
C116
0.0047
1SS301
D74
1SS301
D75
C147
0.0047
C152
0.0047
C265
0.0047
22
R119
18
R120
18
R121
LA-460
L7
LA-459
L6
ATT
LA-461
L8
LA-462
L9
LA-463
L10
LA-464
L11
LA-465
L12
LA-466
L13
LA-467
L14
LA-468
L15
LA-469
L16
100k
R208
100k
R205
100k
R206
100k
R209
100k
R207
LA-470
L17
1SS301
D65
C120
RL16
0.0047
AP03311
22
R123
1SS301
D66
C122
RL17
0.0047
AP03311
22
R124
1SS301
D67
C124
RL18
0.0047
AP03311
22
R125
1SS301
D68
C126
RL19
0.0047
AP03311
22
R126
1SS301
D69
C128
RL20
0.0047
AP03311
AP03311
22
R127
1SS301
D70
C130
RL21
0.0047
22
R128
1SS301
D71
C132
RL22
0.0047
AP03311
22
R129
1SS301
D72
C134 C136
RL23
0.0047
AP03311
22
R130
18
R132
1SS301
D73
RL24
0.0047
C150
1SS301
D53
0.0047
18
R133
C155
1SS301
D76
0.0047
AP03311
22
R131
C24 0.0012
C25 0.0012
C26 0.0012
C28 270p
C29 330p
C31 150p
C30 150p
C32 150p
150p
C35
150p
C36
68p
C37
82p
C38
39p
C39
39p
C40
18p
C41
18p
C42
100p
C46
100p
C47
100p
C44
100p
C45
PWR
13.6
AVR
VCC
R248 47k
4.7k
R238
0.0047
0.0047
C176
R55 22
R255 22
19
18
38
39
40
41
46
47
48
M890F108HSPFM
IC15
UCKO/P12
UOO/P11
UIO/P10
INT07/P07
INT06/P06
INT05/P05
INT04/P04
INT03/P03
INT02/P02
INT01/P01
INT00/P00
RST
PG1/X0A
PG2/X1A
ICPIN1/PG0
VCC
P65/SCK
P66/SOT
P67/SIN
P43/AN11
P42/AN10
P41/AN09
P40/AN08
P37/AN07
P36/AN06
P35/AN05
P34/AN04
P33/AN03
P32/AN02
P31/AN01
P30/AN00
AVSS
P13/TRG0/AGTG
P14/PPG0
P20/PPG00
P21/PPG01
P22/T000
P23/T001
P24/EC0
P50/SLC0
P51/SDA0
P52/PPG1
P53/TRG1
P60/PPG10
P61/PPG11
P62/T010
P63/T011
P64/EC1
VS5
X1
X0
MOO
TOO/P70
TIO/P71
PB0
PB1
PB2
PB3
INT10/PE0
PNT11/PE1
INT12/PE2
INT13/PE3
AVR
VCC
32
31
30
29
28
27
26
25
24
23
22
21
20
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
42
43
44
45
CP1
CP5
CP2
CP3
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
5
6
7
8
4
3
2
1
IC17 S-24CS08AFT
SDA
SCL
WP
VCC
VSS
A2
A1
A0
SKHLAD035A
S2
100k
R163
10k
R240
5V
Z
PH
PWR
13.6
Q25
Q26
Q27
Q28
Q35
Q36
Q37
Q38
AT T
0.0047
C148
R159
470
R160
10k
R52 68
13.6
13.6
SECTION 10 VOLTAGE DIAGRAM
B - 10 - 1

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Icom AT-141 Specifications

General IconGeneral
BrandIcom
ModelAT-141
CategoryTuner
LanguageEnglish

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