My screen is dark on my hitachi ultravision 55

Damaged Optical light engine, this is not the only Hitachi with this problem the ones before the oval was red and was finally settled two years ago in a class action lawsuit.

The model indicated is a DLP rear projection and uses a "lamp" for brightness.

If it has not been changed for a while it should be on the right side of the set behind a removable plate. Check your owners manual if you have it.

Life span varies but 2,000 hours is normal.

Let me know if you need any further assistance as I am here to help.

SD TECH

You may need a drive PCB. This PCB can cause the picture to be too bright, no brightness or picture too dark, intermittantly or permanantly. Do check the bulb though and see if it is foggy looking or dull especially if it has not been changed. Thanks for using Fixya.

Might need a bulb if it is a DLP:

TV bulbs

Hitachi TV also Model # 46UX7K, Serial # W1H002013. I was hoping I can get help with this one too. The picture is dark and has lost most of it's color. I don't know if the color is off because it is so dark. Is there parts that I can buy from you to fix this problem.

i think there may be some dead pixels.try to check it

Good Day, tfarmer;

Since you have replaced the lamp, which is the normal cause for a dark picture. Have you checked your video settings?

The brightness level should be set at about 55 to 60%, the contrast should be set at about 90% and the video temp should be at normal or high.

If all these are set about this way, then I would think that the light engine might be going bad.

Good Luck, big IRISH.

Good Day, steveb13;
It stills points to yhe Light Engine. Good Luck, big IRISH.

Could be faulty red socket along w/ ballast. You need tech to see this.

my tv has a magenta pink and green stripe accross the top of screen...is this a bulb problem