SOURCE: My plasma TV turns itself off and there's nothing I can do to get it come back on...
This is going to sound stupid, but I have a 42" Philips plasma that'd been having the same problem lately. Eventually, I checked the power cord--have you ever noticed that the cord just hangs straight down from the bottom of the set? My guess is that over time, it slowly gets loosened by gravity, just a bit, so you get a fluttery power connection. Anyway, it didn't feel loose, but I pushed the power cord in as hard as I could, and I haven't had a problem since.
SOURCE: Hitachi 32LD8700 - TV won't turn on although has power
The general problem with LCD type TV's is that the power supply
fails. They are very sophisticated designs that are difficult to
troubleshoot and generally best to just replace the module, but
sometimes there is visible damage in some of the electrolytic
capacitors (visibly bulged) and high voltage rated parts can be
substituted.
Hope Ya Fix It
SOURCE: Magnavox 50" plasma Won't Power on/Shut's off/Blinking red LED
The above fix, listed by Tom saved us!! We did as instructed and took off the back of our 50 inch Magnavox plasma tv. We were not sure what we were looking for so we googled capacitator (image) & there was a photo of a fried capacitator! Sure enough we noticed ours were "fried", we took out the board and went to an electronic supply store, bought the 2 capacitators ($2.00 each!!) and then found someone who did tv repair to sauter the new capacitators onto the board. (It is important someone who know how to sauter and recognizes polarity do do this for you) All in all we fixed this following the above instructions for $34.00 and our time. For a month we were told to spend hundreds getting a new power board!
Kudos to you Tom & thanks so much!!
SOURCE: Standby LED blinks 4 times
Hi there,
4 blinks on a Sony Bravia indicates a backlight/inverter (aka ballast) problem. These ballasts are regrettably only available with an entire LCD panel. :( You may perchance be able to find a parts outfitter online that scraps out TVs and have a used ballast.
Typical backlight problem on an LCD shows up as the screen lighting up for a second or two and going back off. The 4 blinks just confirms your problem.
SOURCE: My Sony Bravia turns itself off Stand by red light blinks twice.
If you bought it brand new from a dealer, I would take it back or have them come out and look at it. Less than a month old, it is still under the 1 year MFG warranty or the very best a 30 day one.
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