NV-VP23EG/EC/EP
NV-VP28EG/EC
NV-VP33EG/EC/EB/EBL/EP
DVD SERVO SECTION
BLOCK DIAGRAM
BIAS1
BIAS2
-
+
SHIFT
-
LEVEL
+
+
-
+
-
SHIFT
-
LEVEL
+
-
+
+
-
SHIFT
-
LEVEL
+
+
-
+
-
SHIFT
LEVEL
-
+
+
-
+
-
OPIN-
5
OPIN+
4
SPINDLE MOTOR
M2501
TRAVERS MOTOR
M2502
IC6101
LDIN
24
OPOUT
6
AD0
1.2Vp-p(0.5usec./div.)
IC2511-11,12,13,14
RF SIGNAL
MOTOR DRIVE SIGNAL
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
VIN3
VIN2
VIN1
TRIN
DRV1
DAC0
DAC1
DRV0
VO2-
VO2+
VO1-
VO1+
VO3-
VO3+
VO4-
VO4+
76
75
2
26
11
12
13
14
18
17
16
15
23
3
(MOTOR DRIVE)
ACT F-
ACT F+
ACT T-
ACT T+
ACTUATOR
COIL
TRACKING
COIL
FOCUS
RFINN
RFINP
LASER DIODE
Q8004
LD DRIVE
VIN4
VIN3
VIN2
VIN1
VIN8
VIN7
VIN6
VIN5
PHOTO DETECTOR
B3
B4
B2
B1
A3
A2
A4
A1
LASER DIODE
AMP
HEAD
Q8003
LD DRIVE
113/134
112/133
132
131
117/138
116/137
115/136
114/135
124
123
126
125
110
111
140
139
146
DVD
CD
Tray DRV
Q8001
Q8002
OPTICAL PICK UP UNIT
OPTICAL PICK UP UNIT
LPC01
LPC1
LPC02
LPC2