I have a toshiba tp71g90 that was still working great until this morning I turned it on and came back 5 mins later and the screen was off and the front power led was blinking. I have tried unplugging it etc... and it will click like it is turning on when i plug it in, but then shuts down and the led blinks again. Is this a common problem? Any suggestions as to what it could be. It was working great.....
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I have the same TV with what seems to be the same problem (screen off, audio remains until turning off->on); posted in several places (including here) but yet to receive a conclusive advice.
Please check the following:
- Does the screen turn off exactly 5 min. later - or when high brightness frames come up (could be 1...2...15 min. into the run;you can check that by pausing on a dark frame for a while)?
- Try altering the set to 4:3, low definition (did mine through my UVerse menus) as well as manually reducing the brightness settings; see if this gives you longer screen activity (I often manage for several hours, until some stupid commercial has a few seconds of a bright-white screen).
If we are indeed both in the same boat, my findings thus far are: This is not a lamp issue (changed, no difference); not a color wheel issue (changed a couple of months before this ****); probably not a temperature issue - though I'm still checking that.
I'm hoping it's the ballast; will soon check and LYK. Good luck.
Unfortunately there might no be a fix for this type of failure unless the LCD is open and perform a few measurements in the circuitry. Since the TV is less then a year old, I would suggest to contact the vendor or manufacturer to have it repair under warranty, most electronics devices carry one year warranty.
Let me know if you require further assistance.
this is a very common occurance in these sets. toshiba has issued a servece bullteen with this set. Sorry to tell you this but this is a problem with some very small capacitors on what is known as the hypermodule. in my shop we fix 2 to 5 of these a month. you really have to know how to solder. Idealy replace the hypermodule is the best way. but......that board is hard to find. so we replace these 11 very very small componets with twezzers and a big magnifier. we charge about 250 to 350 for this repair.
I bought a LG 39" flat screen 6 months ago. TV has been working great until this morning. Power comes on for about 5 seconds and then cuts off. Have checked all connections and have unplugged from wall to reset, NOTHING!! And a brand new TV!! Any help would be great!