KDF-50WE655 TV Picture hard to see very dark, several different colors of spots

SOURCE: Sony KDF-50WE655 will not power up. Red blight blinks 4 times

4 blinks shows problem either one or all 4 fans are not working AND internal temperature high error.

If you are familiar with TV repair and know basic electronics then unplug TV from AC outlet an take off back cover and check fans are running?

SOURCE: Problem with Sony Wega 50 in kdf-50we655 light blinks 55 times

I fixed my problem by removing the lamp and vacuuming the hell out of the hole where the lamp lives and also getting all of the dust out of the rear ventilation grids with my vacuum. I put the old lamp back in and what do you know the TV has worked perfectly ever since. My lamp was over a year old and did not show any signs of hazing on the lens that you might see on a lamp that has a ton of hours on it. I just thought I would try to put it back in before I spent a couple of hundred bucks on a new lamp.
TA DA problem fixed.

SOURCE: wega KDF-50WE655 has purple spots, support says wega engine bad

I have over 10 years experience in electronic tech support.

I know this isn't what you want to hear, but the problem you've described sounds like one of the circuit boards that control the picture quality needs to be replaced. The cost of the board would likely be in excess of $200. There are usually several boards in a TV like that that control the picture and when one goes, you can get anything from lines in the picture to poor picture quality from blurriness. The main question is do you want to spend $1000 to fix a used TV?

I hope I've provided you useful assistance and that this information allows you to make an informed decision as to how to proceed from here. Please be sure to vote on my response. I hope I've earned a good rating from you today.

Please let me know if I can be of further assistance.

SOURCE: dull dark picture on kdf-e50a12u rear projection

Depending how long you have owned it and if a Lamp was ever replaced, it probably needs to be replaced. You can check with SONY at
1800-222-SONY and see if they could sell and send you one.
Hope this helps,
Skyassoc

SOURCE: i have a sony kdf-50we655 and have replaced the

Ok two things, either the bulb went out really fast or you have an issue with the ballast. Take out the lamp and analize it, it may look good but might be bad, also try to nitce if you catch any clicking sounds when you turn on the tv, because if it's clicking the issue is most probably wioth your ballast.