Panasonic SA-PM28E - CD Servo Circuit; Optical Pickup Unit

16
15
14
13
12
11
10
2
4
6
8
9
7
5
3
1
16
15
14
13
12
11
10
2
4
6
8
9
7
5
3
1
M
M
CD SERVO CIRCUIT
SCHEMATIC DIAGRAM - 1
OPTICAL PICKUP UNIT
R701
4.7
C701
6.3V33
Q701
Q701
2SA1037AKSTX
LASER POWER DRIVE
R754
5.6
C714
6.3V100
C713
0.1
C751
0.1
C750
0.1
C716
680P
C703
6.3V100
C704
0.1
C707 0.039
C706 1
C712 0.1
C711 0.1
C747
470P
C710
470P
C749 3900P
C742
0.047
R702
4.7K
R705
39K
R704
1K
R706
1K
R707
0
R708
0
R729
1K
R727
1K
R728 18K
R749 18K
R725
330
R715
3.3K
C715
0.47
C739
0.018
C752
0.018
C738
0.056
R735
100
R731
22K
R723
3.3K
C735
0.1
C734
10V220
VR1
VCC
F
E
LD
LD GND
GND
A
GND
(GUARD)
B
VREF
LPD
GND
(GUARD)
T-
T+
F-
F+
CN701
LPD
LD
VCC
EQSW
RFOUT
RFIN
AGC
AGC
HPF-AMP
3TOUT
HPFDET
OFTCONT
BDO
OFTR
VREF TEN TEOUT FEN FEOUT GCTL FBAL TBAL E F D B C A
IC701
AN22004A-NF
SERVO AMP
D3-
D3+
D4-
D4+
NC
PGND2
PVCC2
GND
NC
NC
NC
VCC
VREF
IN4
IN3
D2+ D2- D1+ D1- NC PGND1 PVCC1 GND NC NC NC PC1 IN1 PC2 IN2
IC703
IC703
BA5948FPE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
32
33
42
40
3736
3839
M702
SP MOTOR
M701
TRV MOTOR
R736
100
R744
39K
: +B SIGNAL LINE
: CD SIGNAL LINE
Vref
NC
LPD
GND
F
Vcc
B
LD
E
GND
LDG
A
C1
0.47
C2 0.22
C3
0.22
TRACKING COIL
FOCUS COIL
C702 0.47
C705 0.1
R743
4.7K
R742
10K
R738 6.8K
R737 6.8K
TJ701
EQBST GND
/RFDET
LDON
C737
0.01
C736
0.1
26252423
7 6 5
22 2827
4 389
21
10
20
11
19
12
1817
2 113
16
14
15
1 2
3
4
27282930
5
26
6
25
7
24
8
23
9
22
10
21
11
20
12
19
13 14
3132 18
15
17
16
TJ