LG ProBeam BF50NST Manuel D'utilisation page 101

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[Panel Aspect Ratio]
(Q. Settings)
Select 16x9 (3840x2160) or 21x9 (2560x1080) for the panel screen.
•
Some models may not be supported.
[Energy Saving]
(Q. Settings)
Reduces power consumption by adjusting peak screen brightness.
•
[Minimum]/[Medium]/[Maximum]
Applies the pre-set [Energy Saving] mode.
[Picture Test]
(Q. Settings)
First of all, start the picture test to see whether the video signal output is normal, and
then select whether there is an error.
If there are no problems in the test picture, check the connected external device.
[Picture] [Panel Aspect Ratio]
[Picture] [Energy Saving]
[Picture] [Picture Test]