Table of Contents
Advertisement
14.3. SERVO BLOCK DIAGRAM
OPTICAL PICKUP UNIT
PHOTO DETECTOR
VIN6(DVD/CD)
T1
VIN7(DVD/CD)
A1
A2
(CD)
A4
A3
VIN8(DVD/CD)
T2
HEAD
VIN5(DVD/CD)
AMP
B1
B2
(DVD)
B4
B3
LASER DIODE(DVD)
LASER DIODE(CD)
CLOSE SW
CLOSE_SW
S2601
OPEN SW
S2602
IC8001
IC8251
(DV5.0)
(MOTOR DRIVE)
TRSDRV
VIN2
67
6
114
TRDRV
VIN4
126
22
115
116
FODRV
VIN5
127
23
113
VIN9(CD)
112
VIN10(CD)
SPDRV
VIN1
66
5
111
DRV4(SW)
63
AD1
OPOUT
122
27
LPC01
104
TRAY_DRY
VIN3
62
7
LPC1
103
LPC02
106
SPMUTE
46
3
RFINN
95
TRVFTMUTE
47
4
RFINP
96
64
OPEN_SW
59
TRAY_MUT
MUTE3
60
1
RF SIGNAL
MOTOR DRIVE SIGNAL
LEVEL
SHIFT
-
BIAS1
+
LEVEL
SHIFT
-
+
+
-
LEVEL
SHIFT
-
+
BIAS2
CH1
MUTE
LEVEL
CH2,4,5
SHIFT
MUTE
-
+
LEVEL
SHIFT
-
+
CH3
MUTE
37
DVD-S33EE / DVD-S33GC / DVD-S33GCA / DVD-S33GCS / DVD-S33GCU / DVD-S33GN
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
VO2+
12
-
+
TRAVERSE MOTOR
VO2-
11
-
+
OPIN+
25
VO1+
14
-
+
SPINDLE MOTOR
VO1-
13
-
+
OPIN-
26
VO3+
10
-
+
M2601
LOADING MOTOR
VO3-
9
-
+
OPTICAL PICKUP UNIT
IC8251-15,16,17,18
4Vp-p(0.5msec./div.)
ACTUATOR
TRACKING
-
COIL
VO4+
ACT T+
+
17
VO4-
ACT T-
18
FOCUS
-
+
COIL
VO5+
ACT F+
15
VO5-
ACT F-
16
-
+
-
+
DVD-S33EE/GC/GCA/GCS/GCU/GN
SERVO BLOCK DIAGRAM
Advertisement
Table of Contents
