What may be causing a vizio E601la3E led TV to lose back lights after 5 minutes

Bad LED strip lights, bad capacitors or bad diodes.

Sound like you have a bad ground at your board somewhere but if you are not familiar with electronics and high voltage please call a certified technician

No, before buying part open it up clean it with a dry soft paint brush ,remember to unplug it and let it sit for 10min

Your TV is suffering from LEDs not lighting. Remember the Christmas lights, one goes out, and rest are out. In some cases you can purchase these lamps in strips. Lately it has been difficult to obtain these. It is very time consuming to replace and repair this TV. Thanks for asking, Matt of Martins TV.

some television have back lights that light up the screen for you to see properly. unfortunately with televisions it costs more to repair than it does to replace. if your dealing with a dying led or whatever light is used as the back light i suggest you look into getting another television.

personally suggestion i have a vizio television and i have not have one problem since.
here is a link to their website and also here is an article that you may find interesting!


cheers!
TVs VIZIO The Truth About So Called LED Televisions

http://www.manualowl.com/p/Vizio/M550VSE/Manual/178653 Try this link to download the manual.

Consider taking to a shop and getting an estimate.

Good day sir chris!!!!

Welcome in fixya and I'm happy to work with you...

OK lets proceed to your TV problem..

The possible problem is not the power supply...There some shorted parts on inverter board,T-con board or main board so that the power will not initialize due to that shorted problem..

I teach you how to find which board is shorted or cause of that fault..

Just follow this procedure below.

1. Open the back cover
2. Look at the inverter board..it is slim board that have small transformer on it.
3. unplug the inverter board first.Then try to power it on...
4. If the LED on front of TV will not flashes from bright to dim it means you have shorted inverter board try to replace it..
5. If the flashes remain..go to next step..Power off tv then reconnect inverter board,after that unplug T-con board..Then power on.
6. If the LED on front of TV will not flashes from bright to dim it means you have shorted T-con board try to replace it..
7. If all those procedure done but still problem persisted the only problem is main board..Replacing main board will fix the problem..

NOTE: When unplugging and replacing of all board make it sure to memorize all connection or its better if you take a picture on it for future reference..

Hope this solution will be helpful..Any rate will much appreciated..

Thanks for using fixya..have a nice day!!

First, try setting all display settings to default or 'normal' or 'standard' and disable any picture processing functions. If your TV is LED backlit then the LED dimming function may not be working correctly (dimming is done by rapidly switching the LEDs on & off).