turn tv off. Rapidly Press Display-5-vol.up-power buttons on remote. To exit turn set off. Write down original values for anything you change, never touch the #7 button on the remote--very bad things can happen if you do. The #7 button makes all parameters go to a preset value that is not factory default, including convergence adjustments and you will have an unwatchable set, with about a hundred parameters screwed up other than convergence. Getting convergence back will involve manual redo in all scanrates and all aspect ratios.