AVOL ITT
- Switch ON the TV.
- Press [Mute => 3 => 7 => 2 => Power] buttons in sequence by the remote control.
- By key 10 select an item to adjust.
- Use "Volume Up / Volume Dn" key to adjust the data value to selected item.
- Press 'Power' button to 'Save' and 'Exit' service mode.
BAIER - 4K28MFV
- Locate the Hidden Key [service key], below the 'Stop' button and 'Left' to the cancel button.
- Press this button once to enter Service Mode.
- To go to next menu, press "RED" button.
- To select an item to adjust, use 'Prog + / Prog -" button on the remote control
- To adjust the data value to selected item, use "Volume Up / Volume Dn" button on the remote control.
- To Save and Exit service mode, press "P.P" button.