Sony Bravia KDL-40X3000 Operating Instructions Manual page 42

Decoder
Shows and records the scrambled channel selected when using a decoder connected
directly to scart connector / 1, or to scart connector / 2 via a VCR.
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Depending on the country/region selected for "Country" (page 7), this option may not be
available.
LNA
Improves the picture quality for individual channels in the case of very weak
broadcast signals (noisy picture).
If you cannot see any improvement in the picture quality even if you set to "On", set
this option to "Off" (factory setting).
Confirm
Saves changes made to the "Manual Programme Preset" settings.
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