Signal, Dvd p.w.board operation(signal), Rf and defection signal 2. servo and tray control – Sanyo DVD-9501KR User Manual

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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.)

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