Kenwood KDC-X769, Service Manual

Page: 21 / 36

KDC-X769
21
P Q R S T
1
2
3
4
5
6
7
X16-2140-10 (1/2)
D21
D22
Q6
D26
Q1
Q5
D11
CN1
LCD DRIVER
CN2
REMOTE
SENSOR
CONTROL
REMOTE CONTROL SENSOR
POWER SUPPLY SW
VLCD
AVR
KEY SCAN
LCD DRIVER
D5
D4
D3
D1
D2
START SW
1/3
X25-
CN5
Q11
D17
D19
D16
D18
DIMMER
CONTROL
680P
C11
1K
CP4
3
1
VCC OUT
GND GND
4 2
R12
1K
CP5
R26 1K
R67 330
R1
43K
750
R10
1K
R6
3.9K
R41 R42
1.2K
C21 0.01
1.2K
R23
1K
CP1 470
RST 20
N.C. 9
D-GND
PAN-5V
N.C. 2
3
1
6 ILL-GND
ILL-GND
D-GND
5
4
ILL+B
ILL+B
8
7
REMO
VOL-A
10
11
VOL-B
L-CE
13
14
N.C. 12
17 L-DATAS
L-DATAL
L-INH
16
15
L-CLK
DIMMER 19
18
N.C.
DSI
22
21
E2P-CLK
E2P-5V
E2P-DATA
24
25
23
28 ESD-GND
ESD-GND
PAN-DET
27
26
25
26
21
20
INH
10
11
13
RED
S43
N.C
.
49
S51
51
50
S50
S49
S55 S54 S56 S53 S52
54 53 52 55 56 57
S46
47
48
S48
S47
44
45
46
S45
S44
70
COM8
N.C
.
N.C
.
N.C
.
N.C
.
N.C
.
58 59 60 61 62 63
COM5 COM3 COM4 COM2 COM7 COM6
67 65 64 66 68 69
77
KS4 KS3 KS5
COM1
KS2
73 71 72
KS1
75 74
76
N.C.
KI1
KI4
79
78
KI2
KI3
82
81
80
REMO
KI5
S19
S32
38
41
42
43
S41
S42
40
39
S38
S39
S40
S35
37
36
S37
S36
34
35
33
S33
S34
27
32
31
30
S30
S31
28
29
S27
S28
S29
S25
26
S26
25
S21 S22 S20 S23 S24
22 23 24
21
20 19
TEST
88
VLCD0
GREEN
85
84
83
KEY
86
87
VLCD
VDD
VLCD4
VLCD2
VLCD1
VLCD3
89
90
92
91
93
VSS
6
S13 S16 S15 S14 S17 S18
17 18 16 15 14 13
S10 S8 S9 S7 S12 S11
9
11
12 10
8 7
99
94
95
96
OSC
INH
97
98
CL
CE
DO
S2 S3 S1 S6 S5 S4
3 5 4
1
2
100
DI
18
58
S44
50
52
S51
51
S50
S56 S54 S55 S57 S52 S53
55 54 53 56 57
47
48
49
S47
S49
S48
46
45
S45
S46
S33
39
S41
43
44
42
S42
S43
41
40
S39
S40
36
38
37
S38
S36
S37
35
34
S34
S35
28
S30
31
33
32
S31
S32
30
29
S28
S29
24
S25
26
27
S26
S27
25
S19 S20 S22 S23 S24
21 22
23
S21
20 19
COM2
S70
64
S62
S61
S63 S58 S59 S60
61 60 59 62 63
S67 S69 S68 S65 S64 S66
67 66 65 70 68 69
76
COM8
N.C
.
N.C
.
N.C
.
S71
S72
72 71 73 75 74
COM3
COM4
COM5
COM7
COM6
79
78
77
80
81
VLCD3
87
COM1
N.C.
N.C.
83
82
84
N.C.
N.C.
85
86
VLCD2
VLCD1
VLCD0
VLCD
90
VDD
88
89
91
92
S6
12
S13 S15 S14 S17 S18 S16
15 16 17 14 13
S12 S10 S9
9
S11
10
11
6 8 7
S8 S7
98
VLCD4
OSC
VSS
95
93
94
CE
INH
96
97
S3
4 5
S5 S4
3
2 1
S1 S2
DI
CL
100
99
KS2 KS3 KS4
KS1
KI1 KI2 KI4 KI5 KI3
R68 330
0.1
C2
0.1
C3
0.1
C4
0.1
C5
2.2K
R2
2.2K
R3
2.2K
R4
2.2K
R5
680P
C1
99
100
98
97
INH
R24 47K
0.01
C6
KI1
17 1 2
ESD-GND ESD-GND
E2P-D
A
T
A
3
P
AN-DET
4 6
E2P-5V
5
E2P-CLK
GREEN-SW
8 7
DSI
D-GND
11 9 10
RST N.C
.
14
KI4
12 13
KI5
RED-SW
15 16
KI2 KI3
28
ILL+B
18 19
KS4
N.C
.
22 21 20
KS1
KS2 KS3
24 25 23
D-GND
V
O
L-A
V
OL-B
27 26
ILL+B
P
AN-5V
31
N.C
.
29 30
ILL-GND ILL-GND
32
ESD-GND
4.7
R11
100
R9
R15 100K
C7 2.2
S9 S8
S73
S96
C1
S32
S1
S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10
S2
S3
S4
S5
S6
S7
S90
S87
S86
S85
S84
S83
S82
S81
S80
S79
S78
S77
S76
S75
S74
S88
S89
S91
S92 S93 S94 S95
C2 C3 C4 C5 C6 C7 C8
S72
S71
S70 S69 S68 S67 S66 S65 S64 S63 S62
S61
S60 S59 S58 S57 S56 S55 S54 S53 S52
S51
S50 S49 S48
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S98
S97
S99
S100
S101
S102
S103
S104
S105
S106
S128 S127 S126 S125 S124 S123 S122 S121 S120 S119 S118 S117 S116 S115 S114 S113 S112 S111 S110 S109 S108 S107
C9
C10
C11
C12
C13
C14
C15
C16
43K
R31
0.1
C12
0.1
C13
0.1
C14
2.2K
R35
2.2K R34
2.2K
R33
2.2K
R32
4.7
R36
0.01 C15
4.7
R14
25 26
R8 330 R7 330
1K
R13
11
13
20
21
KI4 KI5 KI2 KI3 KI1
IC3
10
83
84
100
99
98
KS3 KS4
KS1
KS2
84 83
0.1
C16
97
INH
100
98
99
Q6
4.7K
R53
0.01
C27
0.01
C26
0.01
C29
0.01
C28
270
R52
270
R51
4.7K
R54
IC1
IC3
IC2
DISPLAY UNIT (X16-2140-10)
A
10K
10K
10K
10K
5.0V
10.2V
0V
4.9V 5V
0V
5V
0V
5V
0V
5V
0V
0V
1.7V
3.3V
5.0V
6.7V
8.5V
5.0V
0V
5V
0V
5V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0V
5V
0V
5.0V
5V
0V
0V
5V
5.0V
3.3V
1.7V
5.0V
8.5V
6.7V
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 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.
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