- Press "Mute" & 'Menu" buttons on the remote control simultaneously.
- Press "Menu"' button on the remote control, and enter {4 => 7 => 2 => 5}
- Press 'Volume Down' button on the front panel of the TV and press and hold digit '9' on the remote control.
OR
- With No Menu displayed on the panel, press 'AV" & "F' buttons simultaneously.
- Enter code {1 => 0 => 4 => 8} by the remote control.
OR
- Press 'Mute' button on the remote control.
- Press 'Mute' button again. While keep pressing the 'Mute' button, press "Menu" button on the TV SET.
- "S" will be displayed at top right corner of the screen.
- Press 'TV (ANT) / VIDEO" button on TV; to get a single Horizontal Line On | Off [to adjsut screen voltage]
- Press 'TV (ANT) / VIDEO' button on the Remote Control; to select internal Test Signals.
- Use 'Ch Up | Ch Dn' buttons to call an item to adjust.
- Use 'Vol Up | Vol Dn' buttons to adjust the data value to selected item.
- To make adjustment menu On \ OFF, press 'Menu' button.
- To 'initialize' the memory IC (QA02), press "Recall + Channel Up" button on the 'TV'.
- Press 'Recall + Channel Dn" button on the 'TV', to initialize self diagnostic data.
