The problem i am having is with my 34" Panasonic flat screen t.v.
I had turned it off and then about an hour later went to turn it back on. the light would come on and it made the sound like it was going to turn on but it just shut off again and it hasn't turned on since. If u could please help me that would be great
U have a problem in what is called the sos line which is the B+. check the Horazontal output and see if the 145 volt line comes up to the normal 145V. there is a fuse feeding to the horz. out but if the transister is shorted U will get no power. check the fuse it is a resistor and the transister for a short.
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Tries tv unplug,replug it back like about an hour later.By letting the tv resetting itself back to the factory setting.Now the tv should be working again.If still have the same result.Mean ur tv power supply board have problems and the causes.That the board,where the power a/c plug into it.Tries websites like Shojimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
Unplug,replug the tv about an hour later,let the tv reset itself back to factory setting.Go in the tv menu go to AUDIO.Go down to reset let the sound function in the Tuner baord reset itself to the correct setting.From now on ur tv should not lost suond, when turn tv off and turn tv on anymore.
Try this, using the Panasonic remote, wait until the notice about your lamp goes AWAY (it wont work with the message still up). Hold the volume down on your tv while holding the split/play button on the remote. You will get a notice about 4-5 seconds later that it was reset.
Turn everything off and disconnect from mains. Wait a few minutes. Disconnect HDMI cable. Turn on TV and DVD. Connect cable. If this does not work use a cable of different spec. I had the same problem and now mine works . Good luck. T.P.