Signal Detection Of The P/U - LG RH-2320 Service Manual

Hdd/dvd recorder
Table of Contents

Advertisement

3. SIGNAL DETECTION OF THE P/U

1) Focus Error Signal ==> (A+C)-(B+D)
This signal is generated in RF IC (LIC121 : AN22113A) and controls the pick-up's up and down to focus on
Disc.
2) Tracking Error Signal (DPP Method) ==> {(A+D)-(B+C)}- k x {(EF1+EF4)-(EF2+EF3)}
This signal is generated in RF IC (LIC121 : AN22113A) and controls the pick-up's left and right shift to find
track on Disc.
3) RF Signal ==> (A+B+C+D)
This signal is converted to DATA signal in DSP IC (LIC201 : MN103SA6G).
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4-33
LGE Internal Use Only

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Hdr899Hdr1000

Table of Contents