How do you fix a 52 inch Hitachi wide screen television?
Just from Google, It sounds like these T.Vs have a problem with loose connections, and the bulbs if needed are about $149.99. Also check to see if there is good air flow to the tv as overheating is another problem.
Also in the Louisville, Ky, I called a local repair shop and went through my diagnoses and they told me it very well could be the liquid that's in the bulb needs to be refilled, and that is why the T.V. has sound but black picture.