Optical Pickup Circuit; Cd Servo Circuit - Panasonic SA-AK52 Service Manual

SCHEMATIC DIAGRAM -1

OPTICAL PICKUP CIRCUIT

LASER DIODE
6
8
1
11 2
C
3
C
12
4
10
NBOUT 5
5
1 8
GND
6
C
GND
4
2 7
VCC
7
9
NAOUT
8
3 6
BIN
9
VREF
4 5
2 AIN
10
3
11
C C
12
13
14
15
16
: +B SIGNAL LINE : +B SIGNAL LINE

CD SERVO CIRCUIT

R701
4.7 Q701
C701
2SA1037AKSTX
6.3V33
3.2V
LASER POWER DRIVE
Q701
CN701
2.7V
((2.3V))
VCC 0.9V
1
((2V))
PDF
2
PDE
3
R750
LD
4
4.7
LD GND
5
C714
GND
6 6.3V100
NB
7
GND
C713
8
0.1
NA
9
VREF
10
LPD
11
GND
12
T-
13
T+ C750
14
0.1
F-
15
F+
16
C751
0.1
15 16 17 18 19 20 21 29
GND
C735
0.1
IC703
GND
C734
10V220 14 13 12 11 10 9 8
30
C737
36 35
0.1
M
M702
SP MOTOR
C736
38 37
0.1
M
M701
TRV MOTOR
35
: CD SIGNAL LINE
29
30
1
2 3 4 5 6 7 8 9
IC701
IC701
AN8885SBE1
SERVO AMP
28 27 26 25 24 23 22 21 20 19 18 17 16
C747 C710
120P
180P
R702
R705
10K 150K
R744
120K
C712
0.1 C749
2200P
C711
0.1
C742
0.027
R708 R707
R706 R704
22K 39K 1K
1K
33
IC703
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
22 23 24 25 26 27 28
R736
7 6 5 4 3 2 1
100
R735 R725 C752
100 390 1000P
C715
2700P
R727 R749
R715
3.9K 4.7K
1K
R723
6.8K
SA-AK52
C703
6.3V100
C704
0.1
C707
0.027
10 12 13 14
11
15
28
C738 C739
0.01 1500P
R729
R728
3.9K 3.9K
R731
6.8K