Question about Protron PLTV3250 32 in. LCD Television

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Tv will not stay on and will not give a picture

The tv will only stay on for 3 seconds. i tried unplugging it and nothing helps.

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Turn it on with button as u turn on the plug after 10 mins

Posted on Jan 03, 2009

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PANASONIC VIERA TX55as802b will not switch on red power/standby light blinking once every 3-4 seconds have been told its the screen and it cant be repaired can anyone confirm this or help.thanx


The manual says nothing about the power light flashing at that rate. Unless an expert tells you that's the specific indication for a failed screen, I wouldn't believe it. Most TV's will give you sound even if the display has failed.

Try resetting it by unplugging and waiting 60 seconds before plugging it back in.
If that doesn't work, most likely the power supply board needs to be replaced. Or possibly the T-con board.

If you don't know what you're doing, DON'T OPEN THE TV UP TO FIX IT, THERE ARE HAZARDOUS VOLTAGES ON THE POWER SUPPLY BOARD, EVEN WEEKS AFTER THE TV IS UNPLUGGED!

If you don't know how to do it yourself, find some local Electronic repair shops, get quotes, try to find reviews on the shops.

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I have had some issues with high ESR readings in the capacitors in the scaler circuits in those units. Do you have an ESR meter to check the caps in circuit?

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it might mean there is an intermittent connection or cold solder joint somewhere inside the set.
But I wouldn't just settle on that.
Here are some other things to check:
1) Replace the batteries on your remote control.
2) Try resetting the logic functions on your tv by unplugging it for a minute, then plugging it back in.
3) Try covering up the infra-red receptor on the front of your TV to see if you're getting unwanted signals from the receptor. taping a piece of foil over that area is perfect. If it doesn't stop after doing these two things you'll probably need to take it to a shop.
4) If this does stop it, then look for unexpected signal sources. Have you added a remote control extender? Added a new device to your audio-video system? Changed to a new remote?
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ONE: Give it a hard reset. Possibly the software codes in the power management are corrupted. Just unplug the tv line cord for 4 hours. That will reset everything internally to factory defaults.

TWO: Give it the old whacking test. Just bang on the cabinet in many places with your hand or fist. That will restart any cold solder joints or loose connections.

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