![background image](http://html1.mh-extra.com/html/icom/ic-r20/ic-r20_service-manual_3569421036.webp)
Aug. 2009
16
The combination of top side and bottom side of this
• RF UNIT
(TOP VIEW)
J1
1
40
20
21
LD2
+3S
GND
B_VCO2
B_VCO3
B_VCO4
PLLCK
PLLDATA
STR2
HFC
B1C
B2C
B3C
D
CLK
LD1
EAR
A_VCO1
A_VCO2
GND
B_DET
B_R3V
GND
B_NOISE
B_RSSI
+3V
GND
PLLBSTB
PLLDSTB
VP
GND
PLLESTB
PLLCSTB
PLLASTB
RFO
A_DET
A_R3V
GND
A_NOISE
A_RSSI
to LOGIC UNIT J5
W2
(Chassis earth)
(Chassis earth)
(Chassis earth)
W1
ANT
C5
C18
C22
C23
C27
C28
C30
C32
C40
C41
C42
C43
C44
C45
C46
C47
C48
C49
C50
C51
C52
C54
C55
C58
C59
C70
C71
C73
C75
C92
C93
C94
C95
C96
C97
C98
C99
C100
C101
C102
C103
C134
C136
C138
C141
C142
C145
C147
C148
C150
C153
C201
C202
C206
C214
C218
C221
C239
C242
C259
C264
C410
C414
C424
C427
C430
C431
C432
C435
C436
C560
C568
C662
C663
C664
C665
C666
C673
C676
C677
C678
C679
C683
C686
C687
C688
C689
C690
C691
C692
C694
C697
C698
C699
C700
C701
C702
C703
C704
C705
C706
C711
C712
C713
C714
C715
C716
C717
C718
C719
C720
C740
C741
C744
C745
C746
C747
C748
C749
C750
C752
C753
C754
C755
C756
C757
C758
C759
C760
C761
C762
C764
C765
C766
C768
C769
C770
C771
C772
C773
C774
C777
C778
C781
C782
C783
C784
C797
C807
C808
C809
C811
C812
C814
C815
C816
C817
C844
C845
C846
C847
C848
C849
C850
C851
C852
C853
C854
C855
C856
C857
C858
C859
C860
C861
C864
C865
C866
C867
C868
C869
C870
C871
C873
C874
C875
C876
C877
C878
C879
C882
C885
C886
C887
C888
C889
C890
C893
C894
C895
C896
C901
C902
C903
C904
C905
C906
C907
C908
C913
C914
C916
C917
C920
C922
D3
D4
D5
D11
D13
D29
D32
D34
D36
D58
D59
D60
D61
D75
D101
D108
D109
D110
D111
D112
D113
D115
D116
D130
D131
D132
D133
D134
D135
D136
D137
D141
D142
D143
D150
D151
D153
D154
D155
D156
D157
D158
D159
D160
D165
D167
D168
D171
D172
D173
D174
D175
D176
D178
D179
FI1
FI3
FI4
FI7
IC1
IC2
IC10
IC14
IC15
IC16
IC17
IC18
IC19
IC20
IC21
J1
L3
L4
L5
L9
L10
L11
L12
L13
L15
L17
L39
L41
L43
L44
L56
L60
L61
L73
L74
L92
L93
L94
L95
L99
L101
L102
L104
L106
L112
L113
L122
L123
L124
L125
L126
L127
L129
L130
L131
L132
L133
L134
Q5
Q24
Q26
Q35
Q36
Q41
Q521
Q522
Q523
Q524
Q525
Q526
Q527
Q528
Q530
Q531
Q532
Q540
Q542
Q543
Q548
Q551
Q552
Q555
Q556
R4
R6
R13
R14
R15
R16
R18
R19
R20
R34
R35
R36
R46
R49
R50
R54
R55
R56
R57
R58
R59
R60
R61
R62
R68
R88
R91
R93
R95
R98
R99
R100
R101
R102
R103
R105
R106
R108
R110
R112
R159
R172
R174
R203
R204
R205
R207
R208
R209
R220
R221
R231
R239
R323
R324
R325
R326
R335
R346
R347
R352
R353
R354
R355
R356
R357
R358
R359
R360
R361
R362
R363
R364
R365
R366
R367
R368
R369
R370
R372
R379
R380
R381
R382
R383
R384
R385
R386
R387
R388
R389
R390
R391
R392
R393
R394
R396
R414
R415
R423
R425
R426
R427
R428
R429
R430
R431
R432
R433
R434
R435
R436
R437
R438
R439
R440
R441
R442
R443
R444
R445
R447
R448
R449
R450
R461
R467
R469
R471
R472
R473
R474
R475
R489
R490
R491
R492
R493
R494
R495
R496
R497
R498
R499
R500
R501
R503
R505
R512
R513
R514
R515
R516
R517
R518
R519
R520
R521
R522
R523
R524
R528
R529
R530
R536
R537
R541
R542
W1 W2
X1
MP2
H0
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
V0
V5
V10
V15
V20
V25
V30
V35
V40
V45
V50