why does my plasma tv screen occasionally blank


I have a Samsung PN42A450 connected via hdmi to pioneer elite vsx 92 txh receiver. my time warner hd cable box is also connected to the receiver via hdmi.
My problem is every few weeks on some occasions the tv screen goes completly blank and black for a second or two without any sound and then comes back to normal. this keeps repeating sometimes every few minutes.Please advice
thank you.
laptopdoc

Showing 4 responses by laptopdoc

sorry i actually noticed that the sound is there only my screen goes black..so i tested by putting a dvd in the dvd player also connected via hdmi to my receiver and it plays fine..so i am guessing its the cable box. i will change it and see.
wow i never expected all these responses but my problem is more i notice with the hd channels than the regular channels and also i did not see the problem in summer, and winter in buffalo new york where i live now is pretty cold and coming to the wiring there are multiple splitters and also the wiring is pretty old!....im yet to call time warner sigh!
i also forgot to mention my internet and vonage voip runs on the same line too but i dont have any internet problems and im constantly downloading and uploading via torrent.
i decided not to call the cable company because after a day the problem just vanished..and i did not manipulate anything to solve the problem.