Turn on the TV
Press and hold the Menu button to Channel time is shown up then press the numbers 9,8,7,6 and Enter.
Press and hold 'Menu' to the menu settings disappear.
Immediately press the 'volume up' and 'Channel down' at the same time.
Immediately press the 'Channel up' and 'adjust Up' at the same time.
You are now entered in factory mode.
Use the 'Channel up' or "channel down" to select an item.
Write the old value before the change items.
Volume up and down adjust the value.
When you have made all the adjustments you want to select an item '00 '.
Reset the value back to '00 '. 11. Turn the TV off.