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14.3. SERVO BLOCK DIAGRAM
OPTICAL PICK UP UNIT
PHOTO DETECTOR
B1
B2
A1
A2
HEAD
A4
A3
AMP
B4
B3
LASER DIODE
DVDLD+
LASER DIODE
CDLD+
SPINDLE MOTOR UNIT
HALL1
HALL2
HALL3
TRAVERSE SW
IC2601
IC3001
(DV5.0)
(MOTOR DRIVE)
VIN5
TRDRV
IN1
113
PWM1
126
43
VIN6
114
VIN7
115
VIN8
FODRV
IN2
116
PWM0
127
44
VIN1
120
VIN2
119
VIN3
TRVDRV
IN4
117
DRV0
67
46
VIN4
118
VREF
VHALF
VREFH
VHALF
110
37
109
Q5201,Q5211
LPCO1
LD DRIVE
104
LPC1
FG
103
FG
71
1
Q5202,Q5215
LPCO2
LD DRIVE
106
LPC2
105
RFINN
INSP
95
SPDRV
DRV1
66
48
RFINP
96
TRV-SW+
191
DQM2
A3
W
30
A2
V
27
A1
U
26
H1+
HUP
17
H1-
HUN
18
H2+
HVP
19
H2-
HVN
20
H3+
H3+
21
H3-
HWN
22
RF SIGNAL
MOTOR DRIVE SIGNAL
LEVEL
SHIFT
-
+
IC2601-1
3.2Vp-p(1msec/div)
LEVEL
SHIFT
-
+
LEVEL
SHIFT
-
+
DRIVER
GAIN
CONTROL
CURRENT
SENSE AMP
+
-
HALL AMP
+
-
TL
TSD
+
-
TORQUE
SENS AMP
+
+
-
-
+
VCC
R
-
D
Q
CK
Q
+
-
+
-
39
DVD-LS80P / DVD-LS80PC / DVD-LS82P / DVD-LS82PC / DVD-LS850P
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
VO4F
DC1
32
-
+
TRAVERSE MOTOR
VO4R
DC2
33
-
+
OPTICAL PICK UP UNIT
IC2601-5,6,8,9
6.4Vp-p(5usec/div)
ACTUATOR
TRACKING
COIL
-
VO1F
TR+
+
5
VO1R
TR-
6
-
FOCUS
+
COIL
VO2F
FO+
8
VO2R
FO-
9
-
+
-
+
RNF1
25
M+5.5V
RNF2
29
DVD-LS80P/80PC/82P/82PC/850P
SERVO BLOCK DIAGRAM
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