While you wait for answers, we may have found some information which could help you.
Click here for Goodmans Tv Stuckhow can fix goodmans 42 gtv42p4 plasma tv?
How to fix my goodmans 32" tv?
goodmans plasma 42inch x-pro?
How do you fix Goodmans GTV42P4?
Losing picture constantly?
Goodmans LCD TV LD2667D2 intermittent white screen?