Kenwood KDC-5080R/RY Service Manual page 16

U V
IC900 : LC75883E
IC901 : RS-171
1
Q900,903 : DTA124EUA
Q901,902 : 2SD2114K
D900,901 : B30-1571-05
D902-918 : B30-1562-05
D919
2
CONTROL UNIT
CN900
10.7V
ILL+B 13
ILL GND 12
3
MAIN
-CN3
1/2
R909
5.0V 10
PNL 5V 11
A
4
D GND 10
R905 100
DATA S 9 80
R904 100
DATA L 8 77
R903 1K
CE 7 78
R902 1K
INH 6 76
R901 100
CLK 5 79
R900 100
REMO 4 1 Q900
PNL DET 3 22K
GND 2
22K
S929
RST
RST 1
5
C900
10
5.0V
IC901
REMOTE
CONTROL
IC
6
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be
!
7
carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual
instruments or/and units.
W X
R914
270
D904 D903
: B30-1545-05
D907 D906
GND LINE
B LINE
D910 D909
D913 D912
D916 D915
D918
GREEN SW
R908 R907
RED SW
4.7K 4.7K
Q901
Q902
RN901
1K
RN900
1K
65
KI1 KI1
66
KI2 KI2
67
KI3 KI3
68
KI4 KI4
R913 1K 5V
69
KI5 KI5
0V
5.0V 70
VDD
C904 0.047 3.4V 71
VDD1
C903 0.047
1.7V 72
IC900
VDD2
73
VSS
LCD DRIVER WITH KEYMATRIX
74
R910 68K
TEST
C902 820P 75
OSC
R911 47K
5V
76
76 RES 0V
77 5V
77 DO
0V
78
78 CE
5V
79
0V
79 CL
80
80 DI
5V
0V
Q900
REMOTE
SW
KI1
PROG
S900 S901 S902 S903 S904
KI2
FM SRC
S907 S908 S909 S910 S911
KI3
AM
S914 S915 S916 S917
KI4
AUD AUTO
S920 S921 S922
KI5
DISP EJECT
Q903
S925 S926 S927
22K
KEY PERMISSION 22K
SW
Y Z
D901 D900
C907
0.1
D902
R915
360
D905
R916
360
D908
R917
360
D911
R918
360
D914
R919
360
R920
D917
1K
R921
disc
1K
R922
D919
1K
R923
C908 0.1 1K
40
S40
39
S39
38
S38 S34
37
S37 S33
36
S36 S32
35
S35 S31
34
S34 S30
33
S33 S29
32
S32 S28
31
S31 S27
30
S30 S26
29
S29 S25
28
S28 S24
27
S27 S23
26
S26 S22
25
S25 S21
disc
VOL+ 3
S905 S906
COM1
VOL- 2
COM2
COM3
S912 S913
ATT 1
S918 S919
5 4
S923 S924
6
S928
AA AB
ch
2
ST AUTO 1
MTL NEWS PTY
ATT
P/S B NR DAB
LOUD
TI
AUTO 1
ST
MTL NEWS PTY
ATT
P/S B NR DAB
LOUD
TI
KDC-5080R/RY,6016R
AC AD
LCD900
SEGMENT
IN
COMMON
ch
2
IN