![Icom IC-2820H Service Manual Download Page 50](http://html.mh-extra.com/html/icom/ic-2820h/ic-2820h_service-manual_612070050.webp)
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UNR9114J
Q8
MA2S077
D36
L30
LQW18AN6N8C00
0.001
C9
100
R233
HVC350B
D54
0.5P
C182
L6
4.7U
0.001
C150
L29
10N
0.001
C65
MMZ1608Y102BT
EP71
MA2S077
D71
0.001
C307
180K
R119
0.001
C128
R216
10
AS080547
L88
L51
LQW18AN24NG00D
DAN222
D3
1
0.001
C83
1.5P
C340
2.2K
R9
100K
R149
C293
0.001
LQW18ANR15G00D
L41
0.001
C193
27P
C109
37.5N
L98
C76
0.001
R3
7
56
C280
0.001
0.001
C16
0.001
C246
R239
4.7K
47
R165
12.1N
L69
33P
C188
8.6N
L103
0.001
C299
0.001
C210
100
R229
Q23
2SC5624
R241
82K
39N
L75
33P
C262
R4
4.7K
AS080440
L77
100K
R160
R28
82K
R91
680
4P
C224
47
R38
1P
C53
R143
15
0.001
C21
LQW18AN82NG00D
L91
22 CV
C225
2P
C124
R159
100K
0.001
C208
0.001
C136
U NR9113J
Q31
MA2S077
D7
7
47K
R55
1.8K
R141
LQW18AN82NG00D
L66
C335
33P
45.5N
L94
47K
R234
0
R185
R44
10K
2P
C104
XP4601
Q2
1
2
3
4
5
6
1P
C202
22
R754
HVC375B
D50
47
R109
M
A
2S111
D3
2
AS080440
L73
100P
C345
0
R184
D2
MA2S728
R100
22
0.001
C295
AS080747
L89
R59
39
12P
C162
3P
C87
L2
33N
M A2S077
D56
100K
R192
120K
R121
4P
C214
36P
C326
100K
R191
C75
0.001
R18
470
HVC375B
D15
VAGC
R242
82K
VHFYGR
R68
150
0 .001
C265
D72
1SV308
330K
R133
DA_DATA
D52
MA742
Q19
3SK324
100K
R155
0.001
C92
6P
C308
0.001
C122
ERDS2T0
W5
UAGC
C30
0.001
0.75P
C258
HVC350B
D51
C341
0.001
13P
C174
2P
C126
XP4601
Q1
1
2
3
4
5
6
6P
C309
15N
L4
15
R105
L140_R5
D26
1SV308
Q33
3SK318
D16
1SV308
0.001
C219
3.5P
C255
5P
C313
R180
22
0K
MA8075
D169
C66
0.001
2.2 MSVA
C178
L_R5
0.5P
C32
1.5P
C67
3P
C234
R_R5
D7
8
M
A
2S111
MMZ1608Y102BT
EP4
CTH30V222S15A
C845
22
CV
C291
120K
R237
R204
10
10K
R167
AS100340
L50
1.8K
R129
R39
150
HVC375B
D12
MA2S111
D80
100
R188
C249
100P
6P
C328
L25
18N
MA2S077
D5 3
R19
470
C282
0.001
0.001
C215
0.3P
C36
L36
15N
C17
0.
1
R140_R5
R15
47K
100
R171
Q16
2SC473 8
C247
100P
12.1N
L109
2.2K
R209
3.5P
C95
R400_S
3P
C147
C138
0.001
0.001
C62
2.5P
C26
180K
R179
0.001
C324
UNR9213J
Q12
3P
C112
2.2K
R176
LQW18AN68NG00D
L54
220K
R115
C43
39
P
L48
33N
10K
R202
2SC4738
Q30
MA2S077
D73
100P
C279
0.001
C165
L5V
100
R110
UNR9114J
Q11
0.001
C220
D49
M
A
2S111
12.0N
L33
10K
R874
0.001
C68
R86
470
3P
C160
L709CE
D75
C271
100P
R5
470K
8P
C49
AS080440
L61
0.001
C45
27P
C320
12.0N
L31
3P
C168
R63
4.7K
L220_R5
R85
470
0.001
C137
39K
R182
0.001
C254
0.001
C90
2SA1362
Q17
0.001
C190
R168
39K
47K
R114
C244
0.001
0.5P
C96
150
R128
15N
L12
C336
0.001
L44
LQW18AN56NG00
0.001
C217
MA2S077
D35
R_RX800
R95
22
15P
C37
1SV172F
D28
8P
C285
Q26
2SC3357
180K
R118
220P
C300
L70
1U
100
R230
R47
15
12.1N
L99
0
R102
0
R857
R147
330
L9
47N
0.
1
C216
L11
47N
100K
R208
100P
C181
4P
C952
100P
C191
100
R41
3P
C953
DA3_STB
100
R170
100K
R23
0.001
C227
0.001
C170
18P
C319
2P
C133
LQW18ANR15G00D
L164
0.001
C148
HVC375B
D21
0.001
C237
0.5P
C38
C74
0.001
LQW18AN6N8C00
L20
0.1U
L57
R88
22
39N
L72
L35
22N
R213
10
R240
10
220K
R228
41-002AA-R
J11
10P
C70
C235
0.001
AS080440
L104
C24
4P
0.001
C149
8P
C46
33P
C261
C54
33
P
7P
C348
0.001
C116
27P
C332
120K
R48
68
R89
0.001
C63
1P
C173
68K
R193
0.001
C6
Q25
2SC3357
R56
150
C284
0.001
0.001
C186
R217
120
LQW18AN56NG00
L78
0.001
C183
15P
C155
0.001
C86
47K
R190
D11
1SV308
100
R67
220P
C331
100
R197
6P
C338
15N
L5
5P
C342
R139
330
CTH30V222S15A
C846
C102
7P
C135
0.001
C315
0.001
0.001
C184
100
R210
150
R172
R232
680
0.001
C153
33P
C131
8P
C169
0.001
C278
MA2S077
D37
0.5P
C260
L47
0.22U
1SV172F
D68
100K
R78
HVC375B
D20
L63
18N
180K
R221
L37
39N
0.001
C89
D17
1SV308
2SC473 8
Q38
1
2
3P
C82
D23
HVC375B
33P
C185
12P
C273
M62352GP
IC54
1
VSS
2
AO3
3
AO4
4
AO5
5
AO6
6
AO7
7
AO8
8
AO9
9
AO10
10
VDD
11
VCC
12
AO11
13
AO12
14
DO
15
LD
16
CLK
17
DI
18
AO1
19
AO2
20
GND
LQW18AN6N8C00
L102
AS100340
L101
1P
C27
47K
R227
U NR9114J
Q9
PRF18
R852
3P
C93
8P
C78
D4
MA2S728
100K
R200
3P
C304
UNR9114J
Q4
33N
L39
Q27
2SC4703
LQW18AN68NG00D
L165
0.001
C108
0.001
C139
2.2M
R187
0.001
C127
220K
R194
C222
0.001
1P
C161
R64
680
C152
0.001
1K
R12
100P
C211
Q32
3SK318
LQW18ANR15G00D
L76
LQW18AN82NG00D
L64
D18
1SV308
18.3N
L86
9P
C56
0.
1
C44
3.5P
C196
0
R756
0.001
C145
0.001
C207
0.001
C274
D64
MA2S111
22 CV
C270
0.
1
C2
15P
C60
D5
MA2S728
120K
R22
0
M
A
2S111
D76
R83
100K
3SK324
Q28
1k
R219
D48
MA2S111
MA2S077
D65
0.001
C199
R90
4.7K
4P
C333
C252
100P
220K
R235
R126
10K
L1
33N
0.5P
C29
C103
0.001
LQW18AN82NG00D
L81
L34
4.7U
R92
22
100P
C175
MA2S077
D38
R104
22
0
120K
R181
2.5P
C13
1k
R875
18N
L18
0.047
C241
R75
4.7K
L7
4.7U
47K
R112
0.001
C28
0.001
C58
1k
R224
L46
AS080647
4P
C303
HV
8P
C242
ATQ206SA
RL1
0.001
C130
47K
R20
33N
L58
R82
120
R7
6
1K
41-002AA-R
J10
4P
C50
0.001
C142
L24
4.7U
82K
R158
R46
18
J21
3008L-8P8C
1
2
D79
M
A
2S111
7P
C346
3SK318
Q39
0.001
C10
0.001
C306
8P
C283
1K
R212
2.2K
R195
0.001
C938
220
R140
2.2K
R134
R97
1K
8P
C163
0.001
C144
L15
4.7U
2.5P
C14
D47
MA742
Q35
2SC5624
R74
470
10P
C132
15N
L84
0.001
C322
2.2K
R10
R2
2
1K
220K
R113
0.001
C848
LQW18AN68NG00D
L166
18N
L60
18N
L67
0.001
C317
L100
39N
M A2S077
D57
D29
MA2S111
R189
220K
39N
L55
C98
7P
3.5P
C64
R72
470
R142
330
0.001
C47
0.001
C221
0.001
C61
R244
4.7K
5P
C281
0.001
C259
100K
R156
L300_R5
100K
R27
3P
C239
15N
L10
100K
R30
R29
470
47K
R173
Q34
2SC562 4
C251
0.001
12.1N
L95
IC4
NJM3404AV
1
2
3
4
5
6
7
8
47
C80
L83
1U
4P
C15
2P
C347
MA2S077
D69
D7 4
1SV308
0.001
C946
HVC350B
D58
R60
220K
0.001
C942
0.001
C301
0.001
C59
L43
0.1U
12P
C110
R96
4.7K
100K
R145
0 .001
C314
C256
100P
180K
R120
HVC350B
D55
R201
22K
2.2 MSVA
C192
0.001
C72
0.001
C231
0.001
C176
R43
330
M PZ1608S221A
EP2
33K
R148
AS080647
L56
1SV172F
D30
R16
47K
3P
C77
0.001
C11
D59
L709C E
100K
R153
2.2K
R135
MMZ1608Y102BT
EP3
R400_R5
C350
0.001
D1
MA2S728
39K
R186
100
R98
0.001
C218
0.001
C232
FAN
MF 1
0.001
C121
0.5P
C101
R53
220K
18P
C310
0.001
C3
C105
7P
0.001
C151
2SC4738
Q21
12.0N
L23
0.001
C73
0
R757
0.001
C257
15P
C266
0.001
C19
L49
22N
100
R218
R124
4.7K
3P
C200
0.001
C143
120K
R238
0
R222
S-AV32
IC 3
1
IN
2
VGG
3
VDD
4
OUT
0.001
C316
0
R61
100P
C339
0
R236
18P
C312
150K
R163
0.001
C243
L28
47N
39N
L19
C4
0.
1
R164
39K
2P
C349
1K
R215
1.5P
C343
470P
C275
2.5P
C25
R245
10K
L13
4.7U
C171
0.001
3P
C113
36P
C327
0.01
C228
100P
C12
0.001
C118
2.2K
R136
R117
10
0
L400_R5
MA2S077
D7
2SB1132
Q123
0.001
C85
C268
100P
LQW18ANR15G00D
L40
47K
R58
1SV172F
D70
0
R138
C229
0.001
MA2S077
D8
100P
C195
0.001
C5
0.001
C213
UUI
F
3P
C146
ERDS2T0
W6
D67
MA2S111
120K
R175
UNR9114J
Q7
39K
R196
Q20
3SK324
120
R223
330K
R211
5P
C344
1.5P
C337
0.001
C941
39N
L53
D66
MA2S111
100P
C297
1P
C198
UNR9213J
Q13
C287
0.001
M62352GP
IC1
1
VSS
2
AO3
3
AO4
4
AO5
5
AO6
6
AO7
7
AO8
8
AO9
9
AO10
10
VDD
11
VCC
12
AO11
13
AO12
14
DO
15
LD
16
CLK
17
DI
18
AO1
19
AO2
20
GND
64N
L71
D22
1SV308
C88
0.001
0.001
C129
180K
R45
R31
470
33K
R205
0.001
C212
0
R3
0.001
C23
MA2S077
D9
33N
L68
47
R169
8P
C236
C18
0.
1
R800_R5
DA_CK
0.001
C156
7P
C123
100
R108
L62
1U
0.001
C264
0.3P
C100
15P
C41
6P
C321
18N
L16
0.001
C883
27P
C330
0
R101
L45
33N
R14
15
R66
150
5VS
1.5P
C114
R6
4.7K
VVI
F
LQW18AN6N8C00
L107
C223
0.001
0.001
C99
R225
10K
2SA1362
Q15
0.001
C289
1.5P
C115
22 CV
C298
AS080547
L96
HVC350B
D41
9P
C55
100K
R81
0.001
C240
0.001
C164
R150
330
100
R49
12N
L17
2P
C125
D27
1SV308
0
R125
6N
L110
100K
R24
LQW18AN6N8C00
L8
6P
C334
LQW18AN6N8C00
L105
C31
33
P
0.001
C267
L21
4.7U
U NR9114J
Q3
AS080340
L108
0.001
C206
0.001
C40
L42
0.1U
18P
C141
1K
R8
L79
1U
1K
R93
0.001
C140
R243
47K
0.
1
C1
HVC375B
D13
ATQ206SA
RL3
1P
C57
0.001
C94
180K
R177
0.001
C7
AS080647
L92
10
P
C203
0.5P
C187
R231
680
100
R856
0.001
C311
12.0N
L27
D19
1SV308
0.001
C159
R144
22
R40
39
0.22U
L87
C119
0.001
100K
R203
64N
L74
10 EEE-S
C134
0.001
C69
0.001
C197
1P
C272
33N
L38
C120
0.001
2.2K
R199
MA2S728
D6
0.
1
C238
47
R107
Q14
2SC473 8
R106
18
HVC350B
D43
AS080440
L80
PRF18
R853
120K
R54
0.001
C111
100P
C205
150
R174
C91
7P
3.5P
C253
UNR9114J
Q6
R166
22K
3SK324
Q29
HVC350B
D4
4
C167
0.001
1K
R94
220K
R162
0.001
C263
R57
330
R80
4.7K
D3
MA2S728
37.5N
L90
LQW18AN68NG00D
L52
3P
C286
D42
MA742
R154
27K
0.001
C107
D24
HVC375B
Q18
2SC5231
J20
3008L-8P8C
1
2
0.001
C290
LQW18ANR15G00D
L97
0
R877
2P
C323
HVC350B
D40
0.5P
C292
L26
18N
0.1U
L59
0.001
C189
180K
R50
3P
C325
UNR9113J
Q3 6
7P
C33
UT8
R161
100K
47
R35
C233
0.001
2.2K
R137
HVC350B
D45
3SK318
Q37
C106
0.001
0.001
C39
UNR9114J Q10
0.001
C226
100
R152
22
R755
UNR9114J
Q5
100K
R876
1K
R157
0.001
C8
2.2M
R73
2SC4738
Q40
0.001
C35
L3
0.1U
D2
5
M
A
2S111
18P
C318
100P
C329
4P
C48
0.5P
C97
R79
100K
Q22
2SC5085
4P
C288
R7
470K
0.001
C230
DA_STB
0.001
C294
D62
L709C E
L709CE
D61
0.001
C154
2.2K
R11
R70
82K
2.2M
R183
0.001
C194
0.001
C882
D3 9
MA742
1P
C166
1K
R198
D10
1SV308
0.001
C179
0.22U
L85
R33
18
R122
47K
R26
100
41-002AA-R
J22
8P
C71
ATQ206SA
RL2
100K
R206
41-002AA-R
J23
HVC375B
D46
5V
2P
C84
M PZ1608S221A
EP1
45.5N
L93
7P
C34
R111
22
0
UHFYGR
0.001
C81
L22
33N
6P
C296
B2B-ZR-SM4-TF
J1
1
2
3
4
0.001
C117
D63
MA2S111
HVC350B
D60
0.001
C79
0.047
C209
47K
R1
7
L32
4.7U
57.2N
L82
33P
C157
R226
47K
0.001
C895
HVC375 B
D14
L65
18N
R178
15K
R116
15
0.001
C51
0
R52
R51
150
18.3N
L106
R77
22
27P
C305
0.001
C937
S-AU82L
IC2
1
IN
2
VGG
3
VDD
4
OUT
0
R103
10K
R873
UU1
VU2
VV
V220
VU1
VV
L_BPF1
L_BPF2
L_BPF3
L_BPF4
R_BPF1
R_BPF2
R_BPF3
R_BPF4
L_BPF3
L_BPF4
L_BPF4
R_BPF1
R_BPF2
R_BPF3
R_BPF4
L_BPF1
L_BPF2
L_BPF3
L_BPF4
VU1
L_BPF3
V220
V220
UV
UU1
VU2
VHFYG R
8V
8V
R_BPF4
R_BPF3
VT8
TX_MUTE
TX_MUTE
UTX_C
UTX_C
VTX_C
VTX_C
VATTC
UATTC
R_R5
VD5C
UD5C
R_R5
R800_R5
UATT
L_R5
L_R5
VD5
UD5
L140_R5
R140_R5
L220_R5
L300_R5
R400_R5
L400_R5
R800_R5
UT8
PL_U
UD5
R400_R5
L400_R5
L140_R5
VVI
F
UUIF
UUI
F
UUIF
FANC
L_RX140
L_RX220
L_RX300
L_RX400
R140_R5
L_BPF2
L_BPF1
L220_R5
UATTC
PCON_V
PCON_U
TX_MUTE
PL_U
R_RX140
R_RX400
R_RX400
R_RX140
DA_DATA
L_BPF4
L_BPF3
L_RX220
L_RX140
L_RX300
L_RX400
VD5C
L400_S
VATTC
L400_S
UD5C
R_BPF2
R_BPF1
UV
5VS
L5V
VD5
UD5
L300_R5
PCON_
U
PCON_V
DA_CK
(118–174 MHz)
(118–174 MHz)
(375–550 MHz)
(375–550 MHz)
(810–1000 MHz)
(260–375 MHz)
VAT T
UATT
UHFLPF
CHASSIS unit
C;7.85V
VT;0V
UT;3.90V
R;3.85V
(174–260 MHz)
UT;0V
VT;7.81V
R;0V
R;0V
UT;7.73V
VT;0V
R;4.76V
T;0V
R;4.75V
T;0V
R;4.73V
R;4.72V
UT;0V
VT;4.20V
R;4.18V
R;4.41V
VT;0V
UT;4.45V
R;3.59V
R;4.73V
T;0V
R;4.05V
T;0V
MAIN UNIT (3)
E2820̲A3format.indd 20-21
2007/04/13 17:30:01