Kenwood DNX4280BT Service Manual page 43

AT
PC BOARD (FOIL SIDE VIEW)
DIGITAL I/O UNIT
X88-2080-xx (J76-0755-12)
20
C420
TP117
C822
C823
C824
C825
TP799
TP727
L1
R501
L9
L1
L9
Refer to the schematic diagram for the values of resistors and capacitors.
AU
TP795
IC707
R737 R735 4
TP798
5
CN703
C752
TP794
C782
C781
C780
1
CP701
C578
R515
C577 R514
C401
B E
R444
8 5
B E IC400
1 4
C57
C64
A1
C56
C55
IC500
C54
C53
A9
R437
R403
C63
C52
R402
C62
R411 R408
R409
R418
R410 R429
R419
R426
R432
R421
C77 C185
R428
R427
C84 C129
R420 R430
A1
C76
C75
IC501
R436
C74
R407
R406
C73
A9
C83
C72
R502
C82
C71
C81
TP762
TP722
TP728
TP730
TP720
1
AV
TP793
IC705
3
TP761 TP771
TP783
4 3
1
5 1
TP800
TP760
C744
R283
TP782
TP758 TP759
R513 C576
11 10
R512 C575
TP770
R511 C574
IC713
C573
R510
C571
C570
20 1
C572
TP792
R139
R222
TP105
C100 L109
C172
R164
TP104
C158 C147
R100
C155
C135
R224
C117
C146
R223 C148
C145
R218
C128
C184
C130
C133 C143
C183 C140
C109
C127
C112
L106
C144 L107
C810
C115
C126
R107
C156 C111
C124 C118
C122
L105
L111
C164
L101
C157
C108 L120
C119
C149
C113 C170 R763
C169
L103
50
C171
R141 R177 R3
51
C799
C798
R812
75
76
R791 R783
TP754
TP755
C787
CN702
50
AW
DNX4280BT/5180/5280BT/5380/5380M
/5380BT/5580BT/6040EX/6180/6480BT/6980
TP769
TP757
L712 L704
TP726
J400
R263
R266
R265
R267
R264
R30
L130
R268
C166
C160 C807 R270
C114 C165
R272
CP703 CP702
8 5
TP100
C790 IC104
26
1 4
25
R271
IC714
C758
C795
C794
C774
C757
C805
1 C760
TP706
100
C797 C776 C786
TP752
R761
P1
C827
R800
C800
X88-2080-xx
Ref. No. Address
IC500 3AU
IC501 5AU
IC705 2AV
IC707 2AV
IC714 5AW
AX
1
2
3
4
5
6
7
43