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DVD P.W.BOARD OPERATION(SIGNAL)
A. RF Signal during play mode.
RF
RF
RF of DVD disc
RF of CD disc
B. Defection Signal (Detection of level down signal)
RF
PH
BH
DEFECT
RF
PH
BH
DEFECT
Scratched defect
Interruption defect
1. RF and Defection Signal
2. Servo and Tray Control
A. S-Curve signal by Focus search
Zero cross point
RF
FDO
FE
RF
FDO
FE
S-Curve of DVD Single Layed disc S-Curve of DVD Dual Layed disc
Each signal shown refers to WIRING ,SCHEMATIC DIAGRAM and Table of monitor signals.
(This is a basic signal.)