Is it an LED DLP or a lamp-based DLP?
Often times, reseating the bulb fixes these issues, and costs nothing but a little time (and a philips screwdriver, if you don't already have one.
Here's a link (quick, before the tech shows back up) on how to reseat the lamp - if you feel like doing a very easy quick-fix.
Keep me posted.
HL-5679W 56" Samsung DLP TV is switching on and off intermittently (3 or 4 times).. I called samsung and the samsung service person who checked my tv told me that the Power board has a problem and needs to be completely replaced... the total cost for the power board is $400 and $250 for his labor.. So i am spending about 650 bucks on this tv, which is just one and half years old (the 1 year warranty has expired of course).. I saw similar blogs in this forum that said that this was only a problem with a few capacitors that would cost less.. Isn't there a way I can spend less by just fixing specific capacitors in the powerboard instead of replacing the whole damn thing ? .. I stay in NJ, please let me know if there is a cheaper way to get out of this power board mess (if there is any service provided who knows the stuff and can fix it for less) .. These samsung people, i am sure dont know much about this, because the guy who came to check the tv, didn't even open the tv, he just said replace the powerboard by looking at the intermittent on-off...