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14.3. SERVO BLOCK DIAGRAM
OPTICAL PICK UP UNIT
DVD
CD
f1
f2
F1
f4
f3
F2
HEAD
a
b
A
B
AMP
d
c
D
C
e1
e2
E1
e4
e3
E2
LASER DIODE
LASER DIODE
IC3001
(DV5.0)
TRDRV
PWM1
126
FODRV
PWM0
127
VIN5
113
VIN5
VIN6
114
VIN6
VIN7
VIN7
115
VIN8
116
VIN8
VIN1
120
VIN1
TRVDRV
DRV0
67
VIN2
119
VIN2
VIN3
VIN3
117
VIN4
118
VIN4
VREFH
VREFH
109
VHALF
Q5201,Q5211
VHALF
110
DVDLD+
LPCO1
LPCO1
LD DRIVE
104
LPC1
LPC1
103
Q5202,Q5215
LPCO2
CDLD+
LD DRIVE
106
LPCO2
LPC2
FG
105
LPC2
FG
71
RFINN
SPDRV
95
RFINN
DRV1
66
RFINP
RFINP
96
DVD-L
60
P13
Q5221
DRV-MUTE
P4 49
RF SIGNAL
MOTOR DRIVE SIGNAL
IC2601
(MOTOR DRIVE)
IN1
42
-
Pre
+
LOGIC
Driver
CNF1
NF
41
amp
IN2
43
-
Pre
POWER
+
LOGIC
Driver
CNF2
NF
40
amp
OSC
IN4
45
POWER
-
Pre
+
LOGIC
Driver
CNF4
NF
38
amp
VREF
36
IC2601-48
FG
48
OSC
INSP
47
+
BEMP
LOGIC
-
DETECTER
-
+
LIMIT
CTL1
4
STBY/BMSW
CTL2
5
39
TRACKING ERROR SIGNAL
OPTICAL PICK UP UNIT
IC2601-6,7,9,10
6.4Vp-p(5usec/div)
VO1F
TR+
6
POWER
MOS
VO1R
TR-
7
VO2F
FO+
9
MOS
VO2R
FO-
10
PVCC1
11
M+5.5V
PGND1
8
VO4F
DC1
31
TRAVERSE MOTOR
MOS
VO4R
DC2
32
PVCC3
33
M+5.5V
PGND3
30
23
M+5.5V
27
SPINDLE MOTOR UNIT
W
A1
29
Pre
POWER
V
A2
26
Driver
MOS
U
A3
25
COM
21
COUT
19
CCOM
20
RNF1
24
RNF2
28
DVD-KA84GA/PU
SERVO BLOCK DIAGRAM
DVD-KA84GA / DVD-KA84PU
FOCUS ERROR SIGNAL
ACTUATOR
TRACKING
COIL
FOCUS
COIL
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