Kenwood CD-423M-S Service Manual page 11

K L
(X32-377X-XX) (A/5)
Q Q
3 7 6 3 1 5 1 5 0
+5V
4.9V
IC9
(BOTTOM
VIEW)
SRAM
(256K)
80
80 A4
79
79 A3
78
78 A2
77
77 A1
76
76 A0
Q25
75
SQCK/SCK
75
74
74 SO
73
73 SQSI
72
72 SI
71
71 STB1
70
70 DOOR-SW
69
TXD-R
68
RXD-R
67
SQCK/SCK-SW
66
TXD-232C
65 IC6
RXD-232C
(BOTTOM VIEW)
64
+5V AVREF1
u-COM
63
IC-RESET
62
62 LED
61
AVSS
60
R110
60 JOG1
47K
+5V
59
R109
59 JOG2
47K
58
58 DISC-SW1
57
T E
57 DISC-SW2
L 1 3 9 4 2 2 9 6 5 1 3
R108
ONLY
56
47K INPUT
56 S1-SW
R107
55
4.7K
55 LOAD-SW
R106
54
4.7K 4.9V
54 UNLOAD-SW1
53
PROTECT
52
AVREFO
51
+5V AVDD
4.9V
+
C64
0.01
63
+5V
53
+5V
+7.5V
Q3-8
7.5V
MUTE
5 C31 R57
47u10 560
7
6
+
Q3 Q5
8
R63
0.2V
IC3 80
(1/2) R53 1K
10K Q7
+7.5V
20KHz LPF Q6
IC3
Q4
(2/2)
R54 R64
0.2V 1K
10K 79
4 C32
2
Q8
1 47u10 R58 560
3
+
+B +B
+7.5V +7.5V
0.2V
w w w
C36 CN6
0.01 +B AC
1 1 120V(K) W150
C37 CN7
+B 230V(E)
2 2
220-240V(M)
0.01 GND
3 3
3 3
AC
D8 D7
-36V 110-120V(M)
B 4 4 2 2
.
S13
F2
1 1
5 5
F1
6 6
M N
1
A16(1M) 1
2
A17
Q24
3
SCL
4
SDA
5
RD(OE) 5
6
WR(WE) 6
7
CE
8
Q23
ASTB(CE) 4.9V
9
VDD +5V
10
RMUTE
11
RWRR
12
RWR
13
RTRN
14
L-D7
15
L-D6
16
L-D5
17
L-D4
18
L-D3
19
L-D2
20
L-D1
21
L-D0
22
VPP
23
+5VPWM 23
R100 47K
24
R-M-CW 24
R101 47K
25
R-C-CCW 25
26 R102 220K
N-CH
MON
R103 47K
27
S3-SW 27
R104 47K
28
S2-SW 28
29 0.2V
2.6V
REG-ON
2.5V
30
LOADM
30
-(IN2)
31
X2
12.5MHz
4.9V
26
+5V +5V
+5V
+7.5V
R59
330
R60
330
7V SWITCHING
12.9V
POWER SUPPLY
+B +B
L2 7.5V D3
Q10
100uH D11
+B R91 100K
+ D18
R89 330
50
12.3V
Q9
D19
R90 330
D12
49
Q11 R92 100K
5.8V
+
D6
6.8V
Q12
x a o
y
i
CN8
(K,P) : AC120V 60Hz
1 1 (Y) : AC110-120V/220-240V~
50/60Hz
2 2
(T,E) : AC230V~ 50Hz
O P
(X32- ) (B/5)
1-1 2-1 3-1 4-1 5-1
ED1
P1 P2 P3 P4 P5 8
1-2 2-2 3-2 4-2 5-2
P6 P7 P8 P9 P10
16G
1-3 2-3 3-3 4-3 5-3
60
F2
P11 P12 P13 P14 P15 59
F2
58
1-4 2-4 3-4 4-4 5-4
NP
57
P16 P17 P18 P19 P20
NP
15G
56
16G
1-5 2-5 3-5 4-5 5-5
55
15G
P21 P22 P23 P24 P25 54
14G
53
1-6 2-6 3-6 4-6 5-6
13G
52
P26 P27 P28 P29 P30 14G
12G
51
1-7 2-7 3-7 4-7 5-7 11G
50
10G
P31 P32 P33 P34 P35
49
9G
48
(2G-16G)
P1
13G
47
P2
46
P3
45
P4
44
P5
43
12G
P6
42
P7
41
P8
40
P9
39
P10
11G
38
P11
37
P12
36
(X32- ) (C/5)
P13
35
P14
34
STANDBY 10G
P15
33
R149 P16
D26
330 32
P17
31
NC
30
P35
ON/STANDBY 9G 29
P34
28
S1
P33
27
P32
26
P31
ON OFF E2 25
8G
P30
4 LED
S12 24
P29
3 POWER
23
P28
2 POW-P
22
P27
1 GND
21
P26
7G 20
TIMER PLAY
P25
19
P24
18
P23
17
P22
16
6G
P21
15
P20
Q Q 14
P19
3 7 6 3
13
-35.2V P18
CN9 12
8G
5G 11
1 36V 1 -36V
7G
2 2 F1 10
6G
9
3 3 F2
5G
4 LCD 8
4G
7
75 5 SCK
4G
3G
74 6 SO 6
2G
72 5
7 SI
1G
4
71 8 STB
NP
70 9 DOOR-SW 3
NP
3G 2
63 10 RST
F1
62 11 LED 1
F1
60 12 JOG1
59 13 JOG2
48 14 REM
2G
47 15 POWER
4.9V
+5V 16 u+5V
17 GND
P1
1G P2
5.0V
+5V 18 +5V
+7.5V 19 +7.5V
E1
7.5V
J1
LED 4
POWER 3
1 Lch
POW-P 2
AUDIO GND 1
(27Vrms)
2 Rch
P1
J2
SYSTEM
CONTROL
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). 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.
u 1 6 3
The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may
vary depending on the measuring instruments used or on the product.
.
Q R
2 4
9 9 8
36V
+5V
CP3
100Kx5
80
79
78
77
CP1
100Kx15
76
75
74
73
40
40 P14
27
39
28
5.0V 39 P13
29
38
38 P12
30
31 37
37 P11
32
36
33
36 P10
34
35
35 P9
35
36 34
34 P8
37
33
38
33 P7
39
32
32 P6
40
(BOTTOM VIEW)
41 31
FL(DOT) DRIVER
31 P5
42
30
43
30 P4
29
29 P3
44
45
28
28 P2
46
27
47
27 P1
48
49 26
NC
36V
50
25
+5V VDD
51 24
-35.2V AVDD
52
53
23
VSS
54
22
22 A/D0
55
21
21 A/D1
56
57
58
61
62
1 5 1 5 0 8 9 2 4
63
65
R118
66
100K
67
68
69
70
71
+5V +5V
72
CONFIRM REPEAT
S8 S6 S4 S2
2
R126 2K R124 3K R122 5.1K
21
DISPLAY RANDOM
S9 S7 S5 S3
R127 2K R125 3K R123 5.1K
22
A1
REMOTE 3
+5V +5V
DOOR SENSOR
2
SW
REM
1
GND
11
15
36V 36V
m
c o
CD-423M/423M-S/424M/DPF-J3030/J5030
Y22-8230-10
S T
2
9 9
36V 36V
+5V +5V
CP2
100Kx15
36V
+5V
36V
-35.2V
61
61
P20 61
62
62
P19 62
63
63
P18 63
64
NC
65
8G 65
66
7G 66
67
6G 67
68
5G 68
IC13
69
4G 69
70
3G 70
71
2G 71
72
1G 72
73
9G 73
74
10G 74
75
11G 75
76
12G 76
77
13G 77
78
14G 78
79
15G 79
80
16G 80
5.0V
C72
9 8 2 9 47u6.3 9
+5V
C71
+
0.01
X4
5MHz
CN10
19 +7.5V
+5V 18 +5V
5.0V
17 GND
+5V 16 u+5V
15 15 POWER
14 14 REM
S10
DISK
SKIP
13 JOG2
12 JOG1
11 11 LED
6 10 RST
9 9 DOOR-SW
4.9V
15 8 STB
8 7 SI
9 6 SO
7 5 SCK
4 LCD
3 3 F2
2 2 F1
36V 1 -36V
CD-423M/423M-S/424M (K,P)
DPF-J3030 (T,E)
DPF-J5030 (Y)