LG HT903WA Service Manual page 26

7. DISC TYPE JUDGEMENT WAVEFORMS
F+
CD_DVDCT
RF
F+
CD_DVDCT
RF
FIG 7-3 (CD)
1
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
FIG 7-1 (DVD)
F+
1
CD_DVDCT
2
3
RF
F+
1
CD_DVDCT
2
3
RF
3
2-17
FIG 7-2 (DVD)
FIG 7-4 (CD)
IC501
LGE Internal Use Only
1
2
3
1
2
3
2