Kenwood NX-300 Service Manual page 98

A B C D
NX-300
PC BOARD
1
CONTROL UNIT (X53-4260-XX) -10: K,K2 -11: K3,K4
2
Foil side view (J79-0131-29)
D409
R472
3
C429
L410
R474
1
C440
IC413
C415 +
L401
R489
4
C437
C416
C438 R490
C424
R484
4
R446
D410
D405
C430
C422
C418
IC408
R475
1
4 3
C439
1 6
IC412
5 1
R487
IC407
4
C420 R433
R425 C435
3 4
C436 R488
L704
L409
5 C469
C414 C411
C419
1 5
IC406
3 4
Q414
4 3
6
6 1
+ CN401 –
Q415
4 3
6 1
R466 R464
L403
7
Q409
R454 R451
R485
G
Q410 D
S
C454
CN403
8
Q403
Q402
R444
1 6
C448
3 4
C442
Q413 R438
3 2
R492
9
4 1
IC414
10
Ref. No. Address Ref. No. Address Ref. No. Address
IC101 5K IC404 9D IC701
11
IC102 5I IC406 5C IC702
IC103 4K IC407 5B IC703
IC104 3H IC408 4C IC704
IC105 4L IC409 3C IC705
IC106 8I IC411 9F IC706
12
IC107 7I IC412 4D IC707
IC108 7K IC413 3D IC708
IC109 6G IC414 9A IC709
IC401 5F IC416 8A IC710
IC402 4F IC417 6F IC711
13
IC403 7F IC418 6F IC712
14
E F G
R402
L719
R496
R442
Q405
4 3
8
6 1
R462
R133
5
R132
R471
R495
C806
R140
4 3 5 4
R407
R139
R441
R497 Q407 IC402
R408
R194 R193
6 1 R443 8 1
8
R147 C120
11 10 R146 R137
B
R145
5
R150 R142
C Q406
R494
R136 C121
E
R141 R135
20 1 C119
R128
L707 R547
5 4
R127
IC417
D414 8 1
IC109
4 3
C453 C464 R546
1 8 5 1
CN404
IC418
L705 C158
4 5
L713
D415
X102
C406
+
C404
C407
R165
5 4
C466
+ 1 6
8 1
3 4 L8
Q411
+ C405
C446
CN405
4
3
Q404
G
D
IC411
S
1
5
1 6
IC404
3 4
L702
R404
Ref. No. Address Ref. No. Address Ref. No. Address
7Q IC713 4Q Q405 3E Q702
5R IC714 5R Q406 5E Q703
7P IC715 5P Q407 4E Q704
3P IC716 5N Q408 7C Q705
9N IC717 3F Q409 7A Q706
7N Q101 3K Q410 8A Q707
3P Q102 3K Q411 8G D101
9Q Q103 3L Q412 9D D102
4R Q401 8D Q413 9C D401
6N Q402 8C Q414 6C D402
6S Q403 8D Q415 6C D403
6N Q404 9E Q701 6Q D404
H I J K
Q102 Q101
R117 R114
C115
L710
C118
D101
IC103
C103
C102
IC102
R101
IC101
C106
C105
L717
CN106
C157 R192
C156 R190
R157 R181
R187 R183
CN105
C154
R156 C148
CN104
R130
R185 C141
R172 C153
R180 C146
R432 R174
R158
IC106
C160 C138
R470 C428
C131 C139
R463
+ +
X101
C143 C136 C149
L714
C144 C137 L716 L715 C150
Ref. No. Address Ref. No. Address
4R D405 4B D417 5C
6R D406 4C D701 8R
7R D407 9D D702 8R
5O D408 7C D703 4O
5O D409 3D D704 3O
4N D410 4D D705 8R
3L D411 7A D706 6O
6G D412 8C D707 6O
4M D413 7A
5M D414 6F
5M D415 7F
5M D416 9E
L M N O
CONTROL UNIT (X53-4260-XX) -10: K,K2 -11: K3,K4
Foil side view (J79-0131-29)
R112
R106
R829
+
C767
R108
C108
R847
R414
R401
R415
D703
R403
R416 R845
R405
R144
S
C782 C781
R418
D
G
C792
D401 Q707
R837 C793
R410
C124 R852 R851
R838 C794
R149 D402
R834
C796
R411
C788 C786
D403
C787
1 8
R468
R412
R831
IC716
F701
C110 4 5
D404
R167
R840
R413
C135
D707
R841 C744 D706
R154 R740
R427
C759 1 8
R155
R428
IC712 IC710
13
1 5
R153
R429 4 5
R420
3 4
C750 R794
C145 R787 C749
R175 R783
R801
R178 C739
C721
R417
R177
IC706
R176
C151
C758
CN712
C152
24
R168 C757
R730
C747 R780
R763
C730
L102
L101 R761
R757 R744
P Q R S
NX-300
PC BOARD
R735
C712
5 4
R750
R745
IC707
R793
8 1 C717 C722
R758 R755
R753 C745
S C731
R746 C714
R800 D
Q702
G
R738 R802
R749 C746
C761
R713
R779
1 8
R712
IC709
CN701
R710
4 5
R818 R807
5 4
IC714
C778
R814
8 1
R748 C763
C706 R806
C772
R798
5 4
1 5 IC702 C755
8 1
R828
3 4
C723 C716
C775
R816 C734
R747
R771
12
R778
R799
G
Q703 D C753
CN707 S
Q704 C764
R752 TXD
C701
R756
R732 R717
CN708
R759
RXD
C740
24 19
C768
R722
1 18
C743
R721
IC701
R826
R731
1
R729
6 13
7 12
R720
R719
R728
R723
R727
C780
R791 D701
R821
CN710
5
1
C742
IC708
3
4
J79-0131-29
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Foil side
1
2
3
4
5
6
7
8
9
10
11
12
13
14