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Vizio VO420E keeps going black


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12 replies to this topic

#1 of 13 OFFLINE   Adam Lenhardt

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Posted January 25 2012 - 02:21 PM

Our couple year old Vizio 42-Inch LCD TV started randomly going to a black screen. When the screen goes black, you can still hear sound through the speakers. If you hit the menu or A/V buttons, the picture comes back for couple minutes, and then the screen goes black again. What could be causing this?

#2 of 13 OFFLINE   Adam Lenhardt

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Posted January 26 2012 - 08:26 PM

I think it was a problem with the backlight control. I'd turned that feature off when the TV was first set up, but somehow it got turned back on again. Since turning it back off, no more problems.

#3 of 13 OFFLINE   cobra

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Posted February 23 2012 - 10:32 PM

Having the same problem, did u turn backlight to 0 or?? It almost seems like it is falling asleep

#4 of 13 OFFLINE   Adam Lenhardt

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Posted February 24 2012 - 07:29 AM

It's a little tricky to get to. You highlight picture, then you hit the right arrow to bring up the Picture menu. Go down to Advanced Video (one above Reset Picture Mode) and hit the right arrow again to bring up another submenu. Go down to Backlight Control. There are three options: OFF, DCR and OPC. Both DCR and OPC seemed to cause the problem. When I turned this feature to "OFF", the problem went away and the picture overall was much brighter. Good luck!

#5 of 13 OFFLINE   Grace Vargas

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Posted October 17 2012 - 07:53 PM

THANKS SO MUCH FOR POSTING THIS! I WAS READY TO THROW IN THE TOWEL UNTIL I FOUND YOUR POST AND TRIED WHAT YOU RECOMMEND AND LO AND BEHOLD IT WORKED!! I'M ECSTATIC AND RECOMMEND THAT ANYONE WHO HAS A VIZIO AND IS HAVING THIS 'BLACK SCREEN' ISSUE TRIES THIS FIRST. THANKS AGAIN!

#6 of 13 OFFLINE   Adam Lenhardt

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Posted October 18 2012 - 02:31 PM

You're very welcome! Glad it helped you out.

#7 of 13 OFFLINE   Marieke Giasson

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Posted November 04 2012 - 12:03 PM

After lots of investigation, I thought the sound-but-no-picture problem that I've been having intermittently would require lots of money (or at least a bit of money and a gadgety friend willing to work for beer). I just tried your fix and the picture was immediately brighter. I'm keeping all my bits crossed that it solves the problem for good!!!

#8 of 13 OFFLINE   Adam Lenhardt

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Posted November 04 2012 - 03:23 PM

Good luck! The fix has worked for me for years at a go now.

#9 of 13 OFFLINE   Marieke Giasson

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Posted November 04 2012 - 05:09 PM

Sadly, it was not to be. Keeps going black on me. Guess it's time to figure out how to swap out a backlight inverter :(

#10 of 13 OFFLINE   Jeanne Petermeier Dunn

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Posted June 11 2014 - 09:36 AM

I tried this fix today, so far so good. THANK YOU! Picture looks much better too! 



#11 of 13 OFFLINE   Jannypen

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Posted July 13 2014 - 01:06 PM

My 2011 Vizio TV screen  went black all of a sudden this morning.  No backlighting visible when checking from the back thru the air vents.  Sound is good...just a black screen.  Could this be a bad backlight already?  Or, could it be something more simple?  A setting?  I am unable to see the screen settings...since there is no picture.  Any ideas?



#12 of 13 OFFLINE   Jeanne Petermeier Dunn

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Posted September 15 2014 - 09:06 AM

My Vizio TV screen started going black. I tried the fix again, but it did not work. Occasionally it won't go black, but most of the time it does. The screen is black and no sound for about 5 seconds. Stays on for about 30-60 seconds before going out again. Last night I realized it didn't do it when I played a DVD. Any more suggestions? Thanks and I appreciate the help. 



#13 of 13 OFFLINE   Nick3092

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Posted December 10 2014 - 09:24 AM

You guys can also just change the picture settings from custom to a preset I used the game option and the problem seems to have gone away.




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