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SA-VK31EE
16.1. (A) CD Servo Circuit
OPTICAL PICKUP CIRCUIT
E
GND
Vref
F
A
Vcc
NC
B
C3
0.22
LPD
LD
GND
LDG
VR1
TRACKING
FOCUS
C7335
0.1
C7334
10V220
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SCHEMATIC DIAGRAM - 1
CD SERVO CIRCUIT
R7601
4.7
Q7601
VCC
1
1
2
F
2
R7650
C1
E
3
3
5.6
0.47
W7035
LD
4
4
5
5
LD GND
6
GND
6
C7613
B
7
7
0.1
GND
8
8
(GUARD)
9
A
9
10
10
VREF
W7023
11
LPD
11
GND
12
12
(GUARD)
13
T-
13
14
T+
14
15
F-
15
16
F+
16
CN7001
COIL
COIL
14
15
16
17
18
19
20
IC7003
13
12
11
10
9
8
7
IC7003
AN8739SBTE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
36
35
M
38
37
M
W7033
W7031
W7030
0
0
0
W7034
W7032
0
0
Q7601
W7036
B1ADCF000001
0
LASER POWER DRIVE
W7046
0
0
C7614
6.3V100
0
1
2
3
4
5
6
AN22004A-NF
32
31
30
29
28
27
C7112
2700P
C7111
W7015
2700P
39
41
28
R7107
150K
40
42
21
22
23
24
25
26
6
5
4
3
2
1
R7335
R7325
100
390
C7315
0.039
R7327
3.9K
52
: CD-DA SIGNAL LINE
: +B SIGNAL LINE
C7103
6.3V100
C7104
0.1
30
R7152
R7151
15K
4.7K
7
8
9
10
11
12
13
14
15
16
IC7001
SERVO AMP
26
25
24
23
22
21
20
19
18
17
C7110
C7147
560P
470P
R7144
39K
C7149
0
2200P
C7142
0.047
34
31
R7108
R7106
R7104
150K
1K
1K
33
32
R7336
10
C7352
C7338
C7339
8200P
3300P
0.01
R7329
R7328
3.9K
3.9K
R7349
4.7K
R7323
R7331
6.8K
6.8K
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