Panasonic SA-AK520E, Service Manual

Page: 132 / 166

: CD-DA SIGNAL LINE
IC703
AN8739SBTE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
R701
4.7
CN701
Q701
Q701
B1ADCF000001
LASER POWER DRIVE
37
38
35 36
29 30
GND
GND
F-
T+
T-
LPD
VREF
A
B
GND
LD GND
LD
E
F
VCC
C701
6.3V33
R750
5.6
C714
6.3V100
C713
0.1
C750
0.1
C751
0.1
C702
0.47
IC701
AN22004A-NF
SERVO AMP
TEN FEN FEOUT FBAL TBAL TEOUT
DCDET
ARF
RFIN
CAGC
CEA
LD
LPD
RFOUT
EQSW
VREF
(ENV) 3T
OUT
OFTR
/RFDET
LDON
BDO VCC
EQ8ST
OFTCONT
GCTL
C706
1
C707
0.0
39
C704 0.1
C703 6.3V100
C712
0.1
R738
6.8K
R708
0
R707 0
R744
39K
C747
470P
R706
1K
R704
1K
R702
4.7K
R705
39K
C710
470P
C742
0.047
M701
TRV MOTOR
C736 0.1
M702
SP MOTOR
C737 0.1
R731
22K
R728
18K
R749
18K
C739
0.01
R729
1.5K
C738
0.047
R723
5.6K
C752
0.01
R727
1.5K
R735
100
C735
0.1
C734
10V220
R736
10
F+
C770
0.1
R715
2.7K
R725
560
C715
0.22
SCHEMATIC DIAGRAM - 1
CD SERVO CIRCUIT
OPTICAL
PICKUP CIRCUIT
: +B SIGNAL LINE
M
M
12
10
2
4
6
8
9
7
5
3
1
13
14
15
16
12
11
10
2
4
6
8
9
7
5
3
1
13
14
15
16
1 2 3 4
27 28 29 30
5
26
6
25
7
24
8
23
9
22
10
21
11
20
12
19
13 14
31 32
IC703
VCC
NC NC
RSTIN
IN3 IN4
VREF
NC
/RST
GND
GND
PVCC2 PGND2
D4+
D4-
D3+
D3-
PGND1 PVCC1 NC D2+ D2- D1+ D1- IN1 NC PC2 NC IN2 NC
3 4 5 6
24 25 26
8 1 2
23
21
9
20
10
19
11
18
12 13
17 16 15
22
7
14
15 16
18 17
GND E F D C B A
R742 10K R743 4.7K
C716 680P
C705
0.1
RF VOLT
C749
3900P
C711
0.1
R737
6.8K
39
41
34
32
42 40
GND
F
VCC
B
LD
LDG
E
VREF
A
NC
LPD
GND
C3
0.22
VR1
C2
0.22
C1
0.47
11
R739
1K
33
6
5
4 9
8
7
3
10
2 11
1 12