![background image](http://html.mh-extra.com/html/icom/ic-2820h/ic-2820h_service-manual_612070052.webp)
10 - 6
Q72
2SC5231
10K
R404
HVC362
D89
7P
C527
1
C474
1K
R423
2P
C554
2969
MP 4
1
2
3
4
39N
L121
Q64
UNR9213J
UPC2709TB
IC45
1
IN
2
GND
3
GND
4
OUT
5
GND
6
VCC
D107
M A2S077
0.001
C923
0.
1
C401
R433
4.7K
HVC375B
D91
0
R378
47K
R845
33K
R847
0.22U
L112
D81
MA2S111
4P
C524
47N
L114
0.001
C444
XP4601
Q65
1
2
3
4
5
6
UPC2709TB
IC62
1
IN
2
GND
3
GND
4
OU T
5
GND
6
VCC
10K
R420
2SC5108
Q60
R_REFMOD
39P
C481
R363
8.2K
L134
22N
D109
MA2S111
R287
270K
C457
0. 1
R364
1.5K
0.001
C835
2SA1586
Q61
47P
C501
4.7K
R343
M B15A02PFV1
IC14
1
OSCI
N
2
OSCOUT
3
VP
4
VCC
5
DO
6
GND
7
LD
8
FIN
9
CLOCK
10
DATA
11
LE
12
FC
13
NC
14
FOUT
15
P
16
B
47P
C522
1
C395
R299
10K
R455
0
0
R446
0.001
C499
1P
C558
820
R409
L129
15N
27P
C489
C566
0.001
68
R432
10K
R313
L130
12N
3P
C521
2SC473
8
Q52
R356
330
7P
C535
Q79
UNR9213J
2775
MP 6
1
2
3
4
0.001
C504
C431
3P
10P
C488
10K
R411
0.01
C448
4P
C396
RREFCON
R470
4.7K
4.7K
R750
HVC321B
D87
2P
C560
L118
C2012C
47
R408
0.001
C452
MMZ1005Y102CT
EP47
R386
3.3K
0.001
C844
0.
1
C410
7P
C393
470P
C415
47P
C414
0.01
C397
8P
C582
10K
R846
R448
4.7K
0.1
SVA
C451
CR-783
X1
1
VCON
2
GND
3
OUT
4
VCC
18K
R340
TC7S66FU
IC17
1
2
3
4
5
270
R413
7P
C533
R360
10K
0.3P
C479
47
R412
Q74
2SC5231
C547
0.001
22K
R349
18N
L159
15N
L162
100
R362
D106
MA2S077
HVC362
D90
0.001
C922
5P
C406
L125
39N
10K
R344
1.8K
R421
2P
C544
0.001
C482
100
R347
56P
C398
8V
0.001
C490
0.001
C516
330
R369
R325
2.2M
C573
0.001
1.2K
R365
0.001
C526
0.
1
C413
C534
27P
D104
MA2S077
D101
MA2S077
C430
3P
0.001
C502
2SC4116
Q62
3P
C387
0.001
C840
10K
R336
Q73
2SC5231
0
R355
0
R441
D103
1SV308
0.5P
C509
10K
R350
Q76
2SC5231
10P
C408
M A2S077
D159
15P
C493
5.6K
R427
0.18U
L116
10K
R405
470P
C421
2969
MP 9
1
2
3
4
L133
12N
UT8
2601
MP 5
1
2
3
4
0.001
C496
0.18U
L115
22
R312
1U
L161
7P
C532
3.5P
C484
4.7K
R747
10K
R333
0.001
C827
10K
R403
22K
R318
7P
C841
DA221
D86
R_2ndLo
1.8K
R390
0.001
C833
0.047
C447
C565
0.001
R466
1K
0.001
C405
HVC350B
D92
0
R320
R428
0
C441
4P
C538
0.001
680K
R304
0
.
33 SV
A
C473
MA2S077
D160
0.001
C411
C567
0.001
D108
M A2S077
0.001
C385
R373
8.2K
0.15U
L120
27K
R337
2.2M
R382
100P
C446
R370
100K
L113
22N
L117
C2012C
C456
10 MSVA
18N
L124
22P
C512
D102
MA2S077
0.001
C831
UNR9213J
Q122
10K
R338
1P
C498
R_LV
R354
47K
R460
0
R292
0
XP4601
Q68
1
2
3
4
5
6
L131
22N
6P
C563
R140_R5
100K
R394
1
C392
C562
8P
8P
C492
0
R445
47P
C536
1k
R844
0.001
C511
0.82U
L111
0.001
C464
C539
15P
R377
1.2K
L123
39N
470
R348
6P
C568
5V S
C557
100P
10K
R849
R450
2.2K
0.001
C830
R457
10
R400_R5
47P
C434
D97
MA2S111
2SK1069
Q120
22K
R426
R436
0
47P
C508
10 MSVA
C440
R465
4.7K
L135
8.2N
0.3P
C945
R449
4.7K
4.7K
R752
4.7K
R748
0.22
C420
R309
10K
C529
15P
R800_R5
PLLCK
PLLDATA
R_PLLSTB
R_UNLOCK
R_MOD
R400_R5
R_Lo
R_R5
R_UNLOCK
PLLCK
PLLDATA
R_PLLSTB
R_PLLSW
5VS
UMMUTE
R_UVCO_SEL
R_VVCO_SEL
R140_R5
UT8
5VS
UHFYGR
R_R5
R_PLLSW
T;6.98V
R;7.01V
C;7.88V
C;4.86V
R;6.65V
T;6.60V
R;0V
T;7.74V
MAIN UNIT (5)
E2820̲A3format.indd 24-25
2007/04/13 17:30:02