Kenwood NX-300 Service Manual page 168

A B C D
NX-300
PC BOARD / PC
1
TX-RX UNIT (X57-7370-11) (A/2)
Foil side view (J79-0128-39 A/2)
2
3
TX-RX UNIT
4
(X57-7370-11) (B/2)
J79-0128-39 B/2
5
26 POW OPT6 25
TXI RXEI
6 R915
RXEO TXO
OPT2 OPT7
OPT11 OPT8
DTI OPT9
5V AGND
NC NC
7
AGND DGND
OPT5 OPT10
OPT4 NC
26P_TD 26P_RD
2 OPT3 OPT1 1 R912
8
TXD1 RXD1
9
C944
10
Component side
Layer 1
Layer 2
11 Layer 3
Layer 4
Layer 5
Layer 6
Foil side
12
13
14
E F G
板
L614
C609 C668
C665
L612
C663
C664 C662
D709
C954
C803
D711
C952
L725
R931
R790 C850
R791
D710
R777
C804 C807
R773
R786
L722
1
L716
C802
IC703
R768
C798
3
R772
L721 R775 R769
C788
C796
R778
R779
G S
Q705 C782
G D
D705 R770 C778
C776
R784
C786
Q706 R760
L717
R780
C791
H I J K
C645
L610
C648
C642
C988
D
CN601
CN600
+
C751
C753
5 C780
L710
S
L711
C769
4
R744
R761
C750
R747 C748
C741
L706
G S
C742
C752
Q703
C773 C768
G D
L714 C746
R753 C758 R752
R749 C743
C745
D704
C775
D703
D702
C771 R759
R757 C765
Ref. No. Address
IC703
IC903
Q507
Q508
Q509
Q510
Q511
L M N O
PC BOARD / PC
TX-RX UNIT (X57-7370-11) (A/2)
Foil side view (J79-0128-39 A/2)
C643
R646
C632
C635
R559
D
Q606 G
Q603
S
C575
G
R621
R619
C621
C691
C618
C615
R622
L604
C689
L615 C671
C617
C605
R617
L602
C612
C610
R618 C690
D600
R616
C611
R742 R612
C744
R671
C705
L705
C739
R739 C738
R728
C719
L704
L708
XF700
L707
C737 R737
R730
C813
Ref. No. Address Ref. No. Address Ref. No. Address
8H Q512 6P Q701 10O D510
7D Q600 7P Q703 9K D511
7Q Q601 7N Q705 10F D514
5P Q602 6N Q706 10E D515
5Q Q603 4N Q903 8D D516
7R Q606 4L D506 3P D517
6R Q700 9R D507 3Q D518
P Q R S
NX-300
板
R575
L514
C556
C557
L516
L515
C547
L517
C545
D517
D515 L509
C566
L518
L519
D519
C568
R561
R599
C579
C570
R560
C580
L522
L527
C573 C581
C583 C576
Q512
Q511
S
L528 D
C578
G R558
R565
R568
R557
C582
D518
C708 C707
C704 L703
C725
C701
CF700
J79-0128-39 A/2
Ref. No. Address Ref. No. Address
4Q D519 4R D704 10H
4S D600 7M D705 10E
4P D601 8O D706 8E
4P D606 5H D708 8E
4R D607 5G D709 6G
4R D702 10I D710 7E
7Q D703 10I D711 6F
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3
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5
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7
8
9
10
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12
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