Kenwood NX-320 Series Service Manual page 107

A B C D
NX-320
PC BOARD
1
TX-RX UNIT (X57-8050-XX) -10: K, K2, K3 -11: K4, K5, K6, E, E2, E3
2 Component side view (J79-0314-19)
D502
3
R507
1 4
IC502 IC601
2 3
4
C509
R554
C652
R553
L511
C653
L607
L617
C701
L613
C540
C696
10
5 C697
1 9
R620
4 6
5
+
R624
R630
R632
R513
C674 C673
C678
C527
R512
6
C532
C525
RSSI
R510
C524
CP602
7
C523
L503
C648
C649
8
R547
R616
R615
R649
C659
C657
9
C658
C660
C661
L611
10
11
Ref. No. Address Ref. No. Address Ref. No. Address
IC101 3O IC601 4D IC901
IC201 3I IC603 8D IC902
IC402 9J IC605 3F IC904
12
IC404 8H IC607 4E
IC502 4C IC609 6D
IC503 7B IC610 5E
IC504 4M IC611 8F
IC506 5B IC612 8F
13
IC509 4H IC613 5C
14
E F G
/FLDM
Q510
C668
R519
IC605 R552
C670
C663
R623
BSCAN0
L609
C688
R548
L616
C687
C689
R641
R642
R690
C693
R625
IC610
C691
C692
R628
R666
L615
R667
C684
L614
C685
TP604 TP606
TP605 R650
DGND
R611
R614
R613
C647 R610
IC603
R612 R609
R604 C650 CV
C699
TP609
TP608
C646
R606
CP603
TP601
Ref. No. Address Ref. No. Address Ref. No. Address
6P Q501 6K Q902 5P D502
6O Q502 7K Q903 7Q D505
4I Q503 3J Q904 7P D506
Q105 8K Q505 4M Q905 8P D509
Q106 3O Q510 3G Q907 9N D511
Q107 4O Q511 4M D101 8L D512
Q108 5O Q512 5L D401 10J D902
Q109 5N Q602 7F D414 8J
Q403 8J Q901 7Q D501 4Q
H I J K
C237
R235
1 8
IC201
4 5 R529
R228
R224
C549 CN3
R657
1 5
IC904
3 4
R661
C601
C607
R660
CP607
R656
R663
C604
R655
C608
C666
BPF R664
C667
R515
C536
R514
CP610
CN2
CP501
R517
R516
R509
L502
R504
R518
C616
C443
R474
R436
C444
C492
R469 C439 R147
D414
1 8
IC404
R463
4 5
C432
R427 R432
C402
R423
R410
C431
R467
D401
3C
6B
5B
5M
4H
4H
7O
L M N O
TX-RX UNIT (X57-8050-XX) -10: K, K2, K3 -11: K4, K5, K6, E, E2, E3
Component side view (J79-0314-19)
Q106
CN4
R165
5
IC101
8
Q511
C181
R502
Q505
C182
R164
C511
C512 C541
R150
D509
C913 C910
R550
C552
C551
11 ENC1
ENC2
C550
ENC4
R503 GND
ENC3
C548
VOL_GND
R919
VOL
C599
33A TH101
NC
C504
SB1
C502
1 +B
C501
D902
SB1
RXD0
R148
TXD0
SPI
MICO OPTDET
J1
J2
50V
EXT. MIC
EXT. SP
GND
R920
R921
MICI PTT/RXD
TXD
P Q R S
NX-320
PC BOARD
J79-0314-19
R161
4
C178
1 D501
F1
+B
C177
+
Q902
C905
R902
R901
5 1
C904
C901
IC901
C902
6 10
C906
R906
C907
C909
Q905 S
R907
R501
S
D
R909
G
SPO +
AE
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Layer 5
Layer 6
Layer 7
Layer 8
Foil side
1
2
3
4
5
6
7
8
9
10
11
12
13
14