Kenwood KDC-M6021/G Service Manual page 14

S T
Q Q
3 7 6 3 1 5 1 5 0
(X16-1662-70)
1
ED1 (SEGMENT)
2
3
J1
ILL GND 1
+10.5V
ESD GND 2
L DATAS 3 3 3 100
D GND 4 5 99
L CLK 5 5 7 98
T E
DIMMER 6 9 97
L 1 3 9 4 2 2 9 6 5 1 3
L CE 7 7
CP1
10.5V
X89- 470x4
LED+B 8
J1
L DATAL 9 9
4
1/2 NC 10
R14 1K
L INH 11
A R10
1K 1 4
REMO 12 OUT GND2
S27
2 3 5.0V
RST 13 GND1 VCC
NC 14 RST
IC2
FLIP DET 15
IC2
Q6
10K
REMOTE
CONTROL
10K
SENSOR IC
R11
4.7
PAN 5V 16 +5V
5.0V
Q6
REMO
SW
5
6
w w w
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
+10.5V
VLCD
Q5
AVR
D26
KEY PERMISSION
SW
DI Q1
10K
85
76
10K
KS6
77
KI1 KI1
78
KI2 KI2
79
KI3 KI3
80
KI4 KI4
81
KI5 KI5
82 5V
REMO
0V
83
83 RED
84
84 GREEN
85
85 KEY
86
+5V VDD 5.0V
87
+B VLCD 8.5V
88
VLCD0 6.8V
C4 0.1
89
VLCD1
5.1V IC1
C3 0.1
90
LCD DRIVER WITH
VLCD2 3.4V
KEY MATRIX
C2 0.1
91
VLCD3 1.7V
92
VLCD4
93
VSS
94
TEST
R1
R29 43K
95
OSC
47K
5V
96
INH 0V
97
97 DO
98
98 CE
R7 22K
99
99 CL
100
100 DI
x a o
y
. i
W X
ED1 (COMMON)
+10.5V
Q Q
3 7 6
KI1
VOL+
1
S5 S19 S1
KI2
VOL- 2
S6 S20 S9
KI3
50
EQ 3
S50 S50
49
S49 S49
S17 S18 S21 S13
48
S48 S48
47
S47 S47
KI4
46
S46 S46
4 5
45
S45 S45
44 S22 S23 S11
S44 S44
43
S43 S43
KI5
42
S42 S42
41 6 TI
S41 S41
40
S24 S26
S40 S40
39
S39 S39
38
S38 S38
37
S37 S37
36
S36 S36
35
S35 S35
34
S34 S34
33
S33 S33
32
S32 S32
IC1 : LC75808W D5-17 :
31
S31 S31 IC2 : RS-171 D18,19 :
30
D20,21 :
S30 S30
29
Q1,6 : DTA114EUA or D26
S29 S29
28 KRA302
S28 S28
Q3,4 : 2SD2114K ED1
27
S27 S27
Q5,7 : 2SC4081
26
S26 S26
GND LINE
+B B LINE
u 1 6 3
.
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
2 4
8 9 9
D5-19
KEY ILLUMINATION
KEY
D7 D6
ILLUMINATION
RED SW
3 1 5 1 5 0 8 9 2
R15 Q3
SRC DISP
10K
83
D10 D9
S2 S25
D13 D12
S10 S7 S8
KEY
ILLUMINATION
GREEN SW
D15
R16 Q4
AM
10K
84
S14
D16
FM ATT
S12 S15 S16
D17
DIMMER
SW
S3 S4 R30 Q7 D21 D20
R23
4.7K
270
C11 C10
0.01 0.01 D20,21
B30-1605-05
B30-1564-05
B30-1571-05
: MA3091-M
: B30-1089-05
m
c o
KDC-M6021/G
AA
2
8 9 9
+10.5V
R17
D5
330
4 9 8 2 9 9
R18
D8
330
R19
D11
330
R20
D14
510
C8 R21
0.01 360
D18
C9 R22
0.01 360
D19
+10.5V
LCD BACKLIGHT