Schematic Diagram; Cd Servo Circuit - Panasonic SA-PM31P Service Manual

17 Schematic Diagram

17.1. CD Servo Circuit

OPTICAL PICKUP UNIT
E GND
Vref F
A Vcc
HUL7213
C1
NC B
0.47
LPD LD
GND LDG
VR1
TRACKING COIL
FOCUS COIL
SCHEMATIC DIAGRAM - 1
CD SERVO CIRCUIT
Q701
B1ADCF000001
CN701
LASER POWER DRIVE
VCC
VCC
1 1
F F
2 2
E
E
R754
3 3
5.6
LD
LD
4 4
LD GND
LD GND
5 5
GND GND
87
6 6
A
A
7 7
GND
GND
8 8
B
B
9 9
VREF VREF
10 10
LPD
LPD
11 11
C713
GND
GND
12 12 0.1
T-
T-
13 13
T+ T+
14 14
F-
F-
15 15
F+
F+
16 16
C735
0.1
15 16 17 18 19
C734
10V220
14 13 12 11 10
39 38
36
M
M701
TRV MOTOR
: +B SIGNAL LINE
C701
6.3V33
R701
4.7
60
93
94
95
84
R736
90
100
23 24 25
20 21 30 22
IC703
BA5948FPE2
IC 4CH DRIVE
9 29 7 6 5 4
8
35
37
M
M702
SP MOTOR
71
: CD-DA SIGNAL LINE
89 83
29
R729
1K
R728
R727 R749
1K 18K
R725
330
C752 C739 C715
0.018 0.018 0.47
C714
6.3V100
52
48
27 28
26
R766
C738
5.6K
0.056
55
3 2 1
R735
100
R723 R731
3.3K 22K
R732
1K
SA-PM31P / SA-PM31PC
82
10K
49
R715
3.3K
R739
1K