Panasonic CQ-CK2303W Service Manual ▷ View online
18.8. CD Servo Block (Bottom View)
33
CQ-CK2303W
34
CQ-CK2303W
19 SCHEMATIC DIAGRAM
19.1. Main Block
7225-02-11
CQ-CK2303W MAIN
T
o
SUB 7218-06-11
CN201
To CD DECK
3032-14-34 CN101
To CST 7225-11-11 CN824
Heat sink
Heat sink
Heat sink
PA051 YESAP403
Q501
YESAN117
Q502
YESAN117
D501
YESAD119
Q770
YESAN088
D770
YESAD123
Q201
YESAN131
Q301
YESAN131
IC201 YESAM319
IC301
YESAM376
Q351
YESAN121
Q252
YESAN121
Q352
YESAN121
Q251
YESAN121
Q352
Q252
Q253
YESAN127
Q353
YESAN128
IC271 YESAM274
IC202
YESAM320
D201
YESAD143
D278 YESAD146
D279 YESAD146
D270 YESAD146
D271 YESAD146
D272 YESAD146
D273 YESAD146
D274 YESAD146
D275 YESAD146
D276 YESAD146
D277 YESAD146
D202
YESAD144
D301 YESAD119
IC701 YESAM267
IC704
YESAM347
D708 YESAD140
D709 YESAD146
Q708
YESAN079
Q730
YESAN079
D730
ISS133T77
IC703 YESAM269
D701
YESAD139
D702
YESAD119
D707
YESAD143
Q702
YESAN123
Q701
YESAN123
D703
YESAD146
D704
YESAD146
Q706 YESAN115
Q706 YESAN115
Q705 YESAN115
Q703
YESAN123
D808
YESAD119
IC705
YESAM340
D603
YESAD133
D602
YESAD133
D710
YESAD144
D805
YESAD133
D806
YESAD133
D812
YESAD155
D813
YESAD155
D814
YESAD155
D810
D811
Q502
YESAN122
Q503
YESAN122
IC501
YESAM346
Q501
YESAN123
IC401 YESAM321
IC601
YESAM377
D810,811
YESAD175
T
o
DISPLA
Y
7225-05-11 CN901
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
11
12
13
14
15
16
17
18
19
20
FM
2.1
2.1
0
4.8
4.8
4.8
4.8
4.8
0
0
0
0
0
0
0
4.8
2.6
2.1
2.6
2.1
0
2.6
2.3
2.5
2.3
2.5
0
0
0
4.8
4.8
4.8
AM
2.1
2.1
0
4.8
4.8
4.8
4.8
4.8
0
0
0
0
0
0
0
4.8
2.6
2.1
2.6
2.1
0
2.6
2.3
2.5
2.3
2.5
0
0
0
4.8
4.8
4.8
TAPE
2.1
0
4.8
4.8
4.8
4.8
4.8
0
0
0
0
0
0
0
4.8
2.6
2.1
2.6
2.1
0
2.6
2.3
2.5
2.3
2.5
0
0
0
4.8
4.8
4.8
CD
2.1
0
4.8
4.8
4.8
4.8
4.8
0
0
0
0
0
0
0
4.8
2.6
2.1
2.6
2.1
0
2.6
2.3
2.5
2.3
2.5
0
0
0
4.8
4.8
4.8
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
FM
0
0
0
0
0
0
0
4.8
4.8
4.8
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
0
0
4.7
4.8
4.8
4.8
4.8
0
0
0
4.8
0
AM
0
0
0
0
0
0
0
4.8
4.8
4.8
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
0
0
4.7
4.8
4.8
4.8
4.8
0
0
0
4.8
0
TAPE
0
4.8
0
4.8
0
0
0
0
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
0
0
4.7
4.8
4.8
4.8
4.8
0
0
0
4.8
0
CD
0
0
0
0
0
0
0
0
0
0
0
4.8
4.8
4.8
4.8
3.6
4.8
4.8
4.8
3.6
0
1.0
4.7
4.8
4.8
4.7
4.8
4.8
0
0
0
4.8
0
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
FM
0
0
0
0
0
0
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
4.8
0
0
0
0
0
4.8
4.8
4.8
0
AM
0
0
0
0
0
0
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
4.8
0
0
0
0
0
4.8
4.8
4.8
0
TAPE
0
0
0
0
0
0
0
4.8
4.8
4.8
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
4.8
4.8
4.8
0
4.6
0
4.8
4.8
4.8
0
CD
0
0
0
0
0
0
0
4.8
4.8
4.8
0
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
0
4.8
0
0
0
4.8
4.8
4.8
4.8
4.8
0
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
FM
5.0
5.0
0
0
0
0
0
0
0
0
0
0
0
4.8
4.8
4.7
4.8
4.7
4.8
4.7
4.8
4.7
0
0
0
0
0
0
0
0
0
0
0
4.7
4.7
4.7
AM
5.0
5.0
0
0
0
0
0
0
0
0
0
0
0
4.8
4.8
4.7
4.8
4.7
4.8
4.7
4.8
4.7
0
0
0
0
0
0
0
0
0
0
0
4.7
4.7
4.7
TAPE
5.0
0
0
0
0
0
0
0
0
0
0
0
4.8
4.8
4.7
4.8
4.7
4.8
4.7
4.8
4.7
0
0
0
0
0
0
0
0
0
0
0
4.7
4.7
4.7
CD
5.0
5.0
0
0
0
0
0
0
0
0
0
0
0
4.8
4.8
4.7
4.8
4.7
4.8
4.7
4.8
4.7
0
0
0
0
0
0
0
0
0
0
0
4.7
4.7
4.7
IC601
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
FM
0
0
0
-
-
-
0
1.3
0
0
0
0
0
0
0
0
0
8.1
8.2
1.3
8.2
1.3
0
3.6
3.6
3.6
0
0
0
0
0
0
0
4.8
-
0
8.2
-
AM
0
0
0
-
-
-
0
1.9
0
0
0
8.2
0
0
0
0
0
8.2
1.9
1.9
0
3.6
3.6
3.6
0
0
0
0
0
0
0
4.8
-
0
8.2
-
PA051
8.2
8.2
8.2
8.1
0
0
8.3
9.0
9.1
4.3
4.3
4.3
4.3
4.4
4.4
4.4
4.4
0
8.8
4.4
4.4
4.4
0
0
0
8.8
4.3
4.4
4.3
4.3
4.3
0
0
0
0
4.7
0
0
4.7
2.4
0
0
4.8
4.8
0
0
0
8.2
2.4
0
1.3
1.2
1.2
4.8
2.4
0
0
0
0
0
3.2
0
0
0
0
4.8
0
0
0
0
4.8
4.8
4.8
2.1
2.1
4.8
0
4.8
4.9
5.4
4.8
4.9
5.5
14.1
0
5.1
4.7
0
1.2
3.3
5.0
4.7
0
9.1
14.2
14.5
14.5
14.5
14.5
14.5
5.0
14.5
14.5
14.5
14.5
14.5
5.0
14.5
14.5
14.5
14.5
14.5
5.0
0
0
4.7
0
0
4.8
0
0
4.8
0
4.8
0
7.0
14.5
0
7.0
7.0
8.8
3.7
7.0
3.7
3.7
3.8
0
3.7
0
14.5
7.0
7.0
4.6
0
7.0
7.0
3.5
0
3.6
8.8
3.7
0
0
0
0
4.8
4.8
0
0
0
0
0
0
0
0
0
0
0
0
2V / DIV, 20µs / DIV
2V / DIV, 50ms / DIV
2V / DIV, 50ms / DIV
1V / DIV, 50ns / DIV
3.3V
8V
9V
12V
5V
+B
Acc
3.3V
5V
8V
9V
12V
RADIO (L,R)
CD (L,R)
TAPE (L,R)
AUX(L,R)
AUDIO (L,R)
The following symbols are
shown on the schematic diagram.
shown on the schematic diagram.
5V
9V
9V
9V
9V
12V
12V
12V
12V
5V
5V
9V
9V
9V
9V
9V
8V
5V
5V
5V
5V
5V
9V
9V
9V
9V
9V
8V
8V
3.3V
3.3V
3.3V
3.3V
3.3V
12V
5V
5V
9V
9V
9V
9V
9V
9V
R
L
R
L
R
R
L
L
R
R
L
R
R
R
L
L
L
L
R
L
R
L
R
L
R
L
R
L
R
L
L
R
L
L
L
L
R
R
R
R
L
L
R
L
R
L
R
L
R
FR
RL
RR
FL
FR
RL
RL
RR
RR
FL
FR
FR
RL
RL
RR
RR
FL
FL
FR
RL
RR
FL
FR
RL
RR
FL
12V
9V
12V
9V
12V
9V
8V
12V
12V
5V
CQ-CK2303W
35
19.2. Sub Block
7218-06-11
CQ-CK2303W SUB
T
o
Main 7225-02-11 CN201
IC251
YESAM323
IC351
YESAM293
3.4
2.3
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.3
4.8
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.3
4.4
0
4.4
4.4
4.4
4.4
4.4
4.8
4.8
8.7
4.3
4.3
0
0
4.8
0
0
3.4
4.8
2.4
2.4
2.4
2.4
2.4
0
9V
5V
5V
9V
RADIO (L,R)
CD (L,R)
TAPE (L,R)
AUX(L,R)
AUDIO (L,R)
The following symbols are
shown on the schematic diagram.
shown on the schematic diagram.
5V
9V
9V
9V
5V
FL
FR
L
L
R
R
R
R
R
L
R
L
R
R
L
L
L
R
R
R
R
L
L
L
L
R
R
RR
FR
RR
RL
FL
RL
L
L
L
L
L
R
L
L
R
R
R
CQ-CK2303W
36
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