LG LHB976 Service Manual page 185

How to check the BD Single Layer and Double Layer Disc
BD Single Layer Disc
Barcode 1 EA
BD Double Layer Disc
Barcode 2 EA
4-8
4) Select 6 on debug window to perform SA Reset.
5) Press Return key or Pause key to finish debug
mode.
6) Playback once BD disc more than 3 seconds.
(At this time, you must use BD ROM single layer
and BDR single layer disc.)
- Check the disc reverse side of printed label and
then you can see the Bar code in the near of center
hole.
- You should use BD disc which has 1 Barcode like
left picture.
- If you use Double Layer Disc, we don't perform
the SA adjustment, it might be not able to read
BD disc.