A) Cd Servo Circuit - Panasonic SA-AK331GCP Service Manual

17.1. (A) CD Servo Circuit

SCHEMATIC DIAGRAM - 1
OPTICAL
PICKUP CIRCUIT
LASER DIODE
6
8
11 C
C
12
10
5
1 GND NBOUT 8
4
9
2 VCC GND 7
2
3
BIN NAOUT 6
3
4 AIN VREF 5
C
C
CD SERVO CIRCUIT
VCC
1 1
F
2 2
E
3 3
LD
4 4
LD GND
5 5
GND
6 6
C
A
7 7
GND
8 8
B
9 9
VREF
10 10
LPD
11 11
C7613
GND
0.1
12 12
T-
13 13
T+
14 14
F-
15 15
F+
16
16
CN7001
C7335
0.1
C7334
10V220
14 15 16
13 12 11
36
M
37
M
: +B SIGNAL LINE
: CD-DA SIGNAL LINE
Q7601
B1ADCF000001
R7601
4.7
LASER POWER DRIVE
Q7601
R7650
5.6
C7614
6.3V100
17 18 19 20 21
22
GND
IC7003
GND
10 9 8 7 6 5
R7335
100
35
M702
SP MOTOR
38
M701
TRV MOTOR
59
C7601
C7670
C7204 C7203
6.3V33
0.1
0.1 6.3V220
R7329 1.5K
R7327
1.5K
24 25 26
23
C7352
C7339
0.01
4 3 2 1
R7336
10
AN8739SBTE2
C7338
C7315
0.22 TRAVERSE MOTOR/
0.22
SPINDLE MOTOR DRIVE
R7325
R7323 R7331
560
5.6K 22K
SA-AK33 1GCP
R7328 18K
R7349
15K
0.01
R7339
1K
IC7003
FOCUS COIL/
TRACKING COIL/
R7315
2.7K