2. CIRCUITO DO FOCUS/TRACKING/SLED SERVO
2-1. Processo do Focus, Tracking & Sled Servo
Focus, Tracking, Sled Servo
Pick-up
E
F
A,B,C,D
E,F,G,H
B
A
C
D
G
H
Tracking Focusing
Actuator
LIC301 BD7776ARFS
10
9
8
T-
T+
F-
LEVEL SHIFT
LEVEL SHIFT
Logic
30
29
31
A+
A-
B-
M
Stepping Motor
Copyright © 2008 LG Electronics. Inc.
Todos los derechos reservados.
Solamente para propósitos de entrenamiento y servicios
7
F+
FDRV
6
TDRV
5
STEP2
25
STEP1
26
32
B+
LIC101 AN22117A
LIC201 Servo Control
MN103SC7G
A,B,C,D
Focus Error
Detector
FE
A/D
FE
69
D
A
C
73
76
A/D
75
4-29
MPX
Block
A,B,C,D
E,F,G,H
Track Error
Detector
TE
A/D
TE
PARALLEL
DIGITAL
COMPENSATOR
SLED
COMPENSATOR
SDRV
Solamente para uso interno de LGE