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OPTICAL PICKUP UNIT
PHOTO DETECTOR
B1
B2
A1
A2
A4
A3
HEAD
B4
B3
AMP
LASER DIODE(DVD)
Q8551, Q8552
LD DRIVE
Q8561, Q8562
LASER DIODE(CD)
LD DRIVE
IC8001
IC8251
(DV3.2)
(MOTOR DRIVE)
VIN9
130
VIN10
TRSDRV
VIN2
129
DRV0
91
6
VIN5
131
VIN6
TRDRV
VIN4
132
PWM1
144
22
VIN7
133
VIN8
FODRV
VIN5
134
23
PWM0
145
VIN1
138
VIN2
SPDRV
VIN1
137
DRV1
90
5
VIN3
135
VIN4
AD1
OPOUT
136
27
AD1
140
LPC01
124
VIN3
FROM
LPC1
7
123
IC6001-16,17PIN
LPC02
126
LPC2
125
SP MUTE
CH1
DRV4
87
3
MUTE
RFINN
113
TRVFT MUTE
CH2,4,5
DRV3
88
4
RFINP
MUTE
114
RF SIGNAL
MOTOR DRIVE SIGNAL
-
+
BIAS1
-
+
+
-
-
+
BIAS2
-
+
-
+
TRACKING ERROR SIGNAL
VO2+
12
-
+
LEVEL
VO2-
11
SHIFT
-
+
OPIN+
25
VO1+
14
-
+
LEVEL
VO1-
13
SHIFT
-
+
OPIN-
26
VO3+
10
-
+
LEVEL
VO3-
9
SHIFT
-
+
IC8251-15,16,17,18
4Vp-p(0.5msec./div.)
VO4+
-
17
+
LEVEL
VO4-
18
SHIFT
-
+
VO5+
15
-
+
VO5-
16
-
LEVEL
+
SHIFT
MUTE3
CH3
1
MUTE
CLOSE SW
S2601
OPEN SW
S2602
DVD-S52E/EB/EG
SERVO BLOCK DIAGRAM
FOCUS ERROR SIGNAL
TRAVERS MOTOR
SPINDLE MOTOR
M2601
LOADING MOTOR
OPTICAL PICKUP UNIT
ACTUATOR
TRACKING
COIL
ACT T+
ACT T-
FOCUS
COIL
ACT F+
ACT F-
IC6001
(OPERATION CPU)
TRAY MUTE
18
TRAY CLOSE
20
TRAY OPEN
19
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