Just had the Samsung TXP3275H a little over a year now and the TV just started shutting off and turning on repeatately. I unplug the TV for several minutes and then turn it on again and it keeps shutting down immediately and then turning on again and it keeps repeating this. As soon as it turns on, it then shuts down and then turns on and then shuts down....... it never gets a chance for a picture to show up. What's the deal?
I have a samsung 27" HDTV CRT and it started to turn off automatically, when I turn it on it will turn on but last about 5 seconds enough for me to hear sound but no picture, when I leave it off or unplugged and it cools down I can then turn it back on, sometimes it will stay on for 20 min other times it will stay on for hours, not sure what to do about this it's an older TV but I dont' want to toss it I hope I can find a solution here.
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make sure put the lamp door back before trying to turn it on because they have switches on them that allow the tv to turn on. If that is ok you probably have a bad ballast. Call a local tv repair shop to further diagnose the problem.
Depending on the TV and what your local repair shops charge, it might be cheaper to replace the TV. This same thing happened to me. I could replace the TV for just a little more than the cost of fixing it! I'm replacing the TV.
I have the same problem with my 56" HD Samsung. It shuts off automatically and then on the power button the word Lamp is light up in green. Sometimes I can turn it back on but other times it won't and I have to wait a bit. It's been embarassing a couple times when people were over for a movie. I believe it might be some kind of overheating problem but would like someone to confirm this.
It means that the TV set has a short in it somewhere. The sound you hear is the power supply trying to start up and shutting down. Most likely the Horizontal output transistor shorted because of a bd high voltge flyback transformer went bad. Common problem for these types of sets. Good Luck