Kenwood KDC-5019 Service Manual page 12

S T
SWITCH UNIT (X16-1XXX-XX)
1
2
∗
ED1(SEGMENT)
3
J1
0V
S.GND 1
10.7V
ILL+B 2 +B
ILLUM G 3
0V
CP1
470x4 R12 750
100
Q5
L CLK 4 99
L CE 5 98
RESET 6 VLCD
X16-
AVR
L DATAS 7
118
J1 L DATAL 8 97
∗
S3 D26
RST
1/2
DIMMER 9
A
4 R10
NC 10
C5 0.1
1K 1 4
REMO 11 OUT GND2
0V C7
2.2
2 3
GND1 VCC
5.0V
IC2
NC 12 Q6
REMOTE
10K
SENSOR
IC
0V
10K
D GND 13
R11
VDD 14 +5V
4.7
0V 5.0V
S.GND 15 Q6
REMO
SW
C6 2.2
5
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
7
of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts
are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
U V
+B
Q1
10K
CP3
1Kx4
10K
KEY
PERMISSION
SW
CP2
8
76
1Kx4
KS6
77
KI1 KI1
78
KI2 KI2
79
KI3 KI3
80
KI4 KI4
R13
81
KI5 KI5
1K
82 5V
REMO
0V
83
83 RED
84
84 GREEN
85
KEY
86
+5V VDD 5.0V
87
+B VLCD 8.5V/7.6V
88
VLCD0 6.8V/6.0V
IC1
C4 0.1
89
VLCD1 5.1V/4.5V
LCD DRIVER
C3 0.1 90
VLCD2 3.4V/3.0V
C2 0.1
91
VLCD3 1.7V/1.5V
0V 92
VLCD4
93
VSS
94
C1 680P
TEST
R1 43K
95
OSC
5.0V 96
+5V INH
97
97 DO
98
98 CE
R7 22K
99
99 CL
100
100 DI
W X
∗
ED1(COMMON)
+B
KI1
VOL+
1
S1 S6
KI2
VOL- 2
S2 S7
KI3
3
ATT
50
S4 S5 S8
S50 S50
49
S49 S49
48
KI4
S48 S48
47
4 5
S47 S47
46
S46 S46 S9 S10
45
S45 S45
44
S44 S44 KI5
43
S43 S43 6 TI
42
S42 S42
S11 S12
41
S41 S41
40
S40 S40
39
S39 S39
38
S38 S38
37
S37 S37
36
S36 S36
35
S35 S35
34
S34 S34
33
S33 S33
IC1 : LC75808W
32
S32 S32
IC2 : RS-171
31
S31 S31
30
S30 S30 Q1,6 : DTA114EUA or
29
KRA302
S29 S29
28 Q3-5 : 2SC4081
S28 S28
Q7 : DTC143ZK
27
S27 S27
26
S26 S26 D1-3 : B30-1571-05
D5-18,20-22 : B30-1605-05
D23,24 : B30-1564-05
∗
D26 :
GND LINE
+B B LINE
DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations
between individual instruments or/and units.
Y Z
+B
D7
RED LED SW
R15 Q3
10K
83
D10
SRC OPEN DISP
S21 S22 S28 S13
D13
GREEN
S26 S25
LED SW
D18
R16 Q4
10K
84
AM dB
S16 S17 S23 S24
D21
DIMMER SW
FM
Q7
S14 S15 S19 S20
4.7K
47K ∗
EJECT CLK R25 1.2K
∗
S18 S27
R29 1.2K
D2
D24
C11 0.01
C14 0.01
MODEL NAME UNIT No. UNIT No. C9 D3 D26 ED1
KDC-519 (K)
X16-1540-11 YES YES MA3091-M B38-1086-05
KDC-7021Y (E)
KDC-5019 (K)
X16-1540-12 NO NO MA3082-M B38-1088-05
KDC-8020 (M)
X16-1542-72 X16-1892-71 YES YES MA3091-M B38-1086-05
KDC-7021 (E)
KDC-B7021 (E) X16-1542-73 X16-1892-72 NO NO MA3082-M B38-1088-05
KDC-5019/519/7021/7021Y/8020/B7021
AA
+B
R17
D6 D5
330
R18
D9 D8
330
R19
D12 D11
330
R20
D15 D14
330
R21
D20 D17
330
R22
D22 D16
510
∗
D3
∗ +B
C9 0.01
D1
R23
D23
270
C12 0.01
C13 0.01
R25,
29
YES
NO
YES
NO