Panasonic SA-AK22 Service Manual page 57

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