Panasonic SA-AK631GCP, Service Manual

Page: 62 / 112

17.1. (A) CD Servo Circuit
: CD-DA SIGNAL LINE
IC7003
AN8739SBTE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
R7601
4.7
CN7001
Q7601
Q7601
B1ADCF000001
LASER POWER DRIVE
37
38
35 36
GND
GND
F-
T+
T-
LPD
VREF
A
B
GND
LD GND
LD
E
F
VCC
C7601
6.3V33
R7650
5.6
C7614
6.3V100
C7613
0.1
M7301
TRV MOTOR
M7302
SP MOTOR
R7331
22K
R7328 18K
R7349
15K
C7339
0.01
R7329 1.5K
C7338
0.22
R7323
5.6K
C7352
0.01
R7327
1.5K
R7335
100
C7335
0.1
C7334
10V220
R7336
10
F+
C7670
0.1
R7315
2.7K
R7325
560
C7315
0.22
SCHEMATIC DIAGRAM - 1
CD SERVO CIRCUIT
OPTICAL
PICKUP CIRCUIT
: +B SIGNAL LINE
M
M
12
11
10
2
4
6
8
9
7
5
3
1
13
14
15
16
IC7003
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
R7339
1K
C7204
0.1
C7203
6.3V220
C
C
C
C
C
LASER DIODE
11
12
10
6
8
5
4
9
2
3
12
11
10
2
4
6
8
9
7
5
3
1
13
14
15
16
GND
VCC
AIN
BIN
VREF
NAOUT
GND
NBOUT 1
2
3
4 5
6
7
8
62
SA-AK631GCP