What is the purpose of LNA (CH---) at Digital Set-up?
LNA improves the picture quality of the selected channel when the broadcast signal is weak.
When manual tuning is conducted in LNA On, the channel scanned will be keep at LNA On for user viewing and you will see LNA (CH--) On. If we set default as OFF during manual tuning, the channel scanned will always stored LNA OFF & you will see LNA (CH---) Off. As a result the picture quality will not be at best level.
User can change it and stored it independently for each channel.
When manual tuning is conducted in LNA On, the channel scanned will be keep at LNA On for user viewing and you will see LNA (CH--) On. If we set default as OFF during manual tuning, the channel scanned will always stored LNA OFF & you will see LNA (CH---) Off. As a result the picture quality will not be at best level.
User can change it and stored it independently for each channel.