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SA-PM21PC
16 Block Diagram
16.1. CD Servo Block
OPTICAL PICKUP
SEMICONDUCTOR
LASER
B
PHOTO DETECTOR
E
E
D
A
D
F
E
FOCUS
COIL
TRACKING
COIL
LPD
Q701
LD
LASER POWER
DRIVE
E
E
E
A
C
C
B
B
C
D
E
F
F
F+
F-
T+
T-
M701
M
TRAVERSE
MOTOR
M702
M
SPINDLE
MOTOR
IC703
BA5948FPE2
4CH DRIVE
15
D3-
[CH3]
LEVEL
SHIFT
16
D3+
17
D4-
[CH4]
LEVEL
SHIFT
18
D4+
14
D2+
LEVEL
[CH2]
SHIFT
13
D2-
12
D1+
[CH1]
LEVEL
SHIFT
11
D1-
MUTE
[CH1]
MUTE
[CH2]
44
VREF
26
B
FOP
IN3
28
IN4
27
TRP
TRVP
IN2
1
SPOUT
IN1
3
SPPOL
PC1
4
PC2
2
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