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Vizio VO420E keeps going black

post #1 of 4
1/25/12 at 2:21pm
Thread Starter 
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?
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post #2 of 4
1/26/12 at 8:26pm
Thread Starter 
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.
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post #3 of 4
2/23/12 at 10:32pm
Having the same problem, did u turn backlight to 0 or?? It almost seems like it is falling asleep
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post #4 of 4
2/24/12 at 7:29am
Thread Starter 
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!
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