Manta 43LUA29L Manual Del Usuario página 52

Reset: Click will pop up a dialog box, choose whether to restore to the default settings.
3.7 Time
/ to select the Time, press
▼ / ▲
exit the menu.
Sleep time: the system sleep time can be set, you can choose a minimum time of 10
minutes, up to 240 minutes, you can choose to close.
Menu Time: The menu display time can be set, 5s, 10s, 15s, 20s ,, 30s and Always
(always shown).
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