User Guide

FG ENB
FG
FG
BIAS1
BIAS2
MUTE
CH3
MUTE
CH1,2
+
-
+
-
B
A
IC6001-27,28PIN
FROM
LDIN
24
SW2601
OPOUT
6
VIN3
VIN2
VIN1
TRIN
TILT
TIL TP
IN SW
SPDRV
DAC1
TRTRV
TRSDRV
56
69
71
70
61
68
115
114
67
2
26
9
27
23
3
(ODC/DSC)
IC2001
(MOTOR DRIVE)
IC2501
CNT
MUTE
CH4
-
+
SHIFT
LEVEL
-
+
+
-
+
-
SHIFT
LEVEL
-
+
-
+
+
-
SHIFT
LEVEL
-
+
+
-
SHIFT
LEVEL
-
+
+
-
OPIN-
5
OPIN+
4
SPINDLE MOTOR
M2501
TRAVERS MOTOR
M2502
(SUB CPU)
IC6001
P6002-1PIN
FROM
TRAY OPEN
37
38
TRAY CLOSE
TRAY/MUT
TRAY/TRV
47
31
7.2Vp-p(20usec./div.)
IC2511-11,12,13,14
RF SIGNAL MOTOR DRIVE SIGNAL TRACKING ERROR SIGNAL FOCUS ERROR SIGNAL
MUTE4
LD CNT
VO2-
VO2+
VO1-
VO1+
VO3-
VO3+
VO4-
VO4+
20
28
11
12
13
14
18
17
16
15
ACT F-
ACT F+
ACT T-
ACT T+
OPTICAL PICK UP UNIT
ACTUATOR
COIL
TRACKING
COIL
FOCUS
SERVO BLOCK DIAGRAM
8
76
5
4
3
2
1
A
B
C
D
E
DVM-4800
39
SERVO BLOCK DIAGRAM (2/2)