I have a black screen after replacing dlp chip. I have double checked all connections. The lamp doesn't come on and tv shuts down after about a minute.

SOURCE: RCA 50" dlp lamp dead?

There are many different problems with RCA televisions. One could be a color wheel. Another could be a bad ballast. www.Lamp-Replacement.com has a guide and solutions for your RCA lamp 265866 or 270414. The problem is most likely a bad ballast, which is supposed to pre-charge your lamp and ignite it. If you aren't even getting to that stage, you can trace the problem to another component or power supply.

SOURCE: WS-55909 Mitsubishi Big Screen TV timer keeps blinking

it must be recording soething have u got IQ?

SOURCE: Panasonic PT-50DL54J DLP TV Flashing Light

I had the same problems that most of you have been having, tv turning on and off, lights flashing in all different colors, having to unplug tv to reset and all of that good stuff. I noticed that most of the time this would happen once the tv would start to heat up, and I could hear the fan working a little harder. Well I am not an electrician but It was very simple to unscrew the lower bottom park of the tv, where the fan and most of the electronics sit, then I used an oxygen tank ( I work for a medical company ) to blow out all the dust in the tv, ( you can olso use the compressed air use for computer, but if grandma or grampa have some O2 laying around, it works really good, LOL. )and was very surpriced to see how dusty it was, then I removed the MAIN FAN ( you only need to remove three screws, however there's a box in fron of it, which you'll have to remove first in order to get to the fan ). this may sound a little complicated, but trust me it is not, once you have taken the fan off, clean it all the way around ( best to use a clean rag, the compressed air was not doing the job.
long story short, once I cleaned the fan and put it all back together. The TV still didn't work LOL, Just kidding, It has been working perfect for a little over a week.
If I can help in any other way, please e-mail me @ [email protected]

hope this helps.

SOURCE: XL 5200 bulb replace and NO Picture or Sound

3 times blink error code shows Lamp Door is not seated / fixed properly, please recheck it and make sure that door close safety switch is pressed as this switch sends error signal to system control chip.

SOURCE: hi, I have a Mitsubishi wd-57733 dlp tv that shuts down

Ballast is possible if repeated lamp failure but I have a solution I posted several times for this type of problem that works and is simple to try:

http://www.fixya.com/support/t12296849-turns_off_shortly_after_turn?mt_f=viewFull162

Testimonial: "Thanks SD, I will hook up the air tank and see what happens."