Panasonic SA-AK22 Service Manual page 35

SCHEMATIC DIAGRAM -1
OPTICAL PICKUP CIRCUIT
LASER DIODE
6 CN701
8
1
11
2
C
3
C
12
4
10
5
NBOUT
5
1 8
GND
6
C
GND
4 2 7
VCC
7
9
NAOUT
3 6 8
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
Q701
4.7
C701
2SA1037AKSTX
6.3V33
3.2V
LASER POWER DRIVE
Q701
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
IC701
T-
13
AN8885SBE1
T+ C750
14
0.1
SERVO AMP
F-
15
F+
16
C751
0.1
IC703
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
15 16 17 18 19 20 21 29 22 23 24
GND
C735
0.1
IC703
GND
C734
10V220 14 13 12 11 10 9 8 30 7 6 5
R735
100
C737
36 35
0.1
M
M702
SP MOTOR
C736
38
37
0.1
M
M701
TRV MOTOR
35
: CD SIGNAL LINE
29 30
C703
6.3V100
C704
0.1
C707
0.027
1 2 3 4 6 8 10 11 12 13 14
5 7 9
IC701
28 27 26 25 24 23 22 21 20 19 18 17 16 15
C710
C747
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
28
25 26 27 28
R736
4 3 2 1
100
R725 C752
C738
390 1000P 0.01
C715
R729
2700P
3.9K
R727 R749
R715
3.9K 4.7K
1K
R723 R731
6.8K 6.8K
SA-AK22
C739
1500P
R728
3.9K