Panasonic SA-PM29E, Service Manual

Page: 22 / 76

18 Schematic Diagram
18.1. CD Servo Circuit
15
14
13
12
11
10
2
4
6
8
9
7
5
3
1
16
C1
0.47
15
14
13
12
11
10
2
4
6
8
9
7
5
3
1
16
C713
0.1
R754
5.6
C2 0.47
C9 0.22
C751
0.1
C750
0.1
Q701
2SA1037AKSTX
SWITCH
R701
4.7
C701
6.3V33
C716
680P
C703
6.3V100
C704
0.1
R743
4.7K
C702
0.47
C705
0.1
C707
0.039
C706
1F
C711 0.1
C712 0.1
R737 6.8K
R738 6.8K
C747
470P
C710
470P
R744
39K
R702
4.7K
R705
39K
C749 3900P
C742
0.047
R704
1K
R706
1K
R707
0
R708
0
33
40
42
R729 1K R728 18K
R749
18K
R727
1K
R725
330
R715
3.3K
C752
0.018 C715
0.47
C739
0.018
C738
0.056
R735
100
R731
22K
R723
3.3K
C736
0.1
39
38
M701
TRV MOTOR
C735
0.1
C734
10V220
C737
0.01
M702
SP MOTOR
36
37
R732
1K
31 32 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R736
100
D3-
D3+
D4-
D4+
PVCC2
PGND2
NC
GND
NC NC NC
VCC
VREF
IN4 IN3
D2+ D2- D1+ D1- PVCC1 PGND1 NC GND NC NC NC PC1 IN1 PC2 IN2
IC703
BA5948FPE2
IC 4CH DRIVE
LPD
LD
VCC
EQSW
RFOUT
RFIN
CAGC
AGC
HPF_AMP
3T
OUT
HPFDET
OFTCONT
BDO
OFTR
/RFDET
LDON
A C B D F E TBAL FBAL GCTL FEOUT FEN TEOUT TEN VREF EQBSY GND
IC701
AN22004A-NF
IC HEAD AMP
TJ
701
TRACKING COIL
FOCUS COIL
VCC
F
E
LD
LD GND
GND
A
GND(GUARD)
B
VREF
LPD
GND(GUARD)
T-
T+
F-
F+
CN701
28 27
26
3 2 1
25
4
24
5
23
6
22
7
19
10
18
11
17
12
16
13
15
14
20 21
9 8
HUL7213
E
Vref
A
NC
LPD
GND
GND
F
Vcc
B
LD
LDG
VCC
F
E
LD
LD GND
GND
A
GND(GUARD)
B
VREF
LPD
GND(GUARD)
T-
T+
F-
F+
R742
10K
C714
6.3V100
: CD SIGNAL LINE
M M
VR1
: +B SIGNAL LINE
CD SERVO CIRCUIT
SCHEMATIC DIAGRAM-1
70
SA-PM29E / SA-PM29EB / SA-PM29EG