I have a Samsung TXN2668WH HDTV. It has been acting up. While watching the set will turn off and back on after a few seconds. 1st occurrence is about 20-30 seconds, and then it gets quicker and finally it will just stay off. Can someone point me to the right direction on how to have this fixed? Thanks....
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I had the same problem. I bought my tv at Best Buy and my warranty included a new bulb for the lamp. They only last about 2 yrs or so depending on how much you watch the tv. You can also buy replacement bulbs online that don't cost too much. BUT, you will need to replace every couple of years. The things you listed are exactly what happens when the bulb goes out. Hope this helps!
That unfortunately is the first most detrimental thing for the Lamp. The can lamp can be accessed through a cover in the rear of the set. Take it out and look at it, most likely is shattered. If it is try DLP Lamp Express for a replacement. If not, let me know.
If you have any electronic background, the best thing to try first with this TV set would be to locate the convergence board and unplug the power plugs going to the board. Try then to turn on the TV set, and if it does turn on, turn it off right away! That will tell you that the convergence board is shorted and causing your problem. If the set still will not turn on you will need to trouble shoot the power supply board. If you have no electronic circuit board experience, this is not the job for you to attempt, play it safe and call in a trained tech. good Luck
The buzzing sound you most likely hear is the ballast trying to fire up the lamp. I would say replace the lamp and yes they can act up at will. If this is the first lamp replacement ever then you are doing good.