Blue light on power button keeps blinking and I don't have a picture. Is the bulb toast or do I need to replace the color wheel AGAIN?

Model number may help you get an answer.

There is an additional problem,

if the bulb had been replaced by a technician, call them back and ask for additional support, since they did not fix the problem.

Here is a link on how to replace your color wheel. http://www.jangro.com/electronics/samsung-dlp-replace-color-wheel/
Your lamp need replaced too.

Hi,
Bad color wheel is cause of noise and black and white picture in tv, please replace color wheel to solve the issue.
Required color wheel is available in SamsungParts for $120
Thanks.

Same thing happened to me (By jschmidbauer on Jan 14, 2010). How did you fix it????

Check your color wheel. There is a DIY guide for replacing the color wheel. Mine did the same thing yours is and my color wheel was all busted up. Unfortunately after replacing the color wheel my set continues to do the same thing, but this could mean I need to replace the ballast as well.

did you replace the bulb only or a new bulb with a new cage?

You need to put in the values for x,y, of red,blue,green & white.
when you get the color wheel, sticker(printed values) was in the same box.
If you have, let me know and I''ll let you know how to put in.

you probobaly. need a new bulb, my dad had the same problem. he orderd a new bulb off the internet and now it works just fine