Question about Toshiba 50L4300U 50" 1080p LED-LCD TV - 16:9 - HDTV 1080p 1920 x 1080 - Audyssey EQ, Audyssey ABX, Audyssey Dynamic Volume - 4 x HDMI - USB - Ethernet - Wi-Fi - PC Streaming - Internet Access - Media Player

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Power surge on my Toshiba 50L4300U and now no sound. I do have picture

Lost sound on both TV and Polkaudio system after lightning struck a power box near my house

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  • Toshiba Master
  • 3,320 Answers

Check fuses and breakers on Polk.
If they are ok then take it to the shop.

Posted on Mar 31, 2014

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Posted on Jan 02, 2017

CAYPIANAN
  • 227 Answers

SOURCE: Power Surge....now no picture or sound

in wich state are you? we can maybe fix it.

caypianan@yahoo.com

Posted on Oct 30, 2008

tvtek
  • 1284 Answers

SOURCE: Toshiba 26LV610u TV with no sound on one channel

If you have lost sound on only one station and are using cable or an antenna directly to the TV. Look in the audio settings as most likely the SAP mode is turned on. If the TV detects a SAP signal even if there is no audio this is what you will end up with.

Posted on Nov 05, 2009

  • 8457 Answers

SOURCE: LIGHTNING STRUCK THE ELECTRICAL POLE DOWN THE

Now ur tv LED power light indication on the front LCD panel flashes?Yes,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay,com to buy a refurbish power supply board for the replacement.

Posted on Jul 13, 2010

eagle338
  • 4889 Answers

SOURCE: Toshiba 26lv610u tv/dvd has no sound or picture

Yes if there is no clicking, then the power supply is usually faulty. However its difficult to tell if it has affected any other boards(like the main board) with out testing it. I would suggest that you take the assistance of a tech, have him test it to determine if its just power. If yes then you can get a new power board and replace it. Otherwise it may be wiser just to get a new tv. You can get a 26 inch tv for around 350-400$ now.

Posted on Nov 02, 2010

jdvillanueva
  • 2098 Answers

SOURCE: We had a storm come

Hi,
Unplug your unit for 1 hour, before you power it on, press and hold the power button for 1 minute.
If the symptoms still there, then this is an indication that the power supply board was gone to malfunction. Some voltage surge protector is not a 100% reliable because it depends how high is the voltage surge coming from the source and if the design can handle such surged to avoid damaged to the unit. In your case, obviously the surge protector doesn't react efficiently.
Yes this kind of symptoms is quite fixable but needs to send it in because I've suspected that not only the power supply board was faulty but also the mainboard because your direct TV box was also fried which is connected to the TV.
Check if your unit is under warranty/extended warranty, avail it because the manufacturer will fix it for free, but of course don't mention that the unit was fried due to storm. If not, ask for an estimate first for service fee ($300 more or less depends upon the shop) plus parts to have an idea whether to send it in or buy a new TV.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Posted on Jun 13, 2011

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1 Answer

I have a 50 inch Toshiba 50L4300U that has no picture but has sound. What board do I replace?


Do this test first. With the TV on normally, shine a flashlight on the screen. look for a dim moving picture.
1) If you see one, the backlight led driver isn't working.
2) If you DON'T see a picture replace the T-Con board.
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1 Answer

TV was struck by lightning


If it was struck by lightning, the surge would completely fry the insides of your TV. Your TV probably won't work anymore and you may have to consider replacing it. Some TVs have accident warranties so something like this could be protected, but if not, you will have to purchase a new one.

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