My vizio m550nv led tv turns on and has sound and picture, but the picture is nearly black. When I called vizio, they said it was probably the backlight. I read that you can replace the board, but I do not know which board... The PC board or the main board? The tv is opened up and ready for new part, but don't know which one to purchase and replace.
This TV comes with a remote that connects to the TV via Bluetooth. It
remembers which equipment is connected to the various inputs, and
automatically changes the controls to match the input equipment - really
nice! I found that it will control all my equipment, and since it
works via bluetooth, you don't have to have direct line-of-sight to the
TV. Wish that the bluetooth part worked for my satellite equipement too!
Programmable remotes will operate this TV, but depending on how old
they are, they may not be able to hit all the features of the tv - our
older directv remotes will operate the basic features, but only the
newer models will change the input source - so you may want to use the
remote that came with the TV. We have smaller kids, and wanted to limit
their use of the tv remote, because it has a slide-out keyboard similar
to those on some cell phones to make posting to facebook (one of the
apps that comes on the tv) easy. Since our youngest is 5, we thought it
might be best to keep that remote out of harm's way.
More Detail :
http://tv.babybi.com/detail.php?id_detail=VIZIO-M550NV-55-inch-Full-HD-1080p-120Hz-LED-LCD-HDTV-id126a
SOURCE: Vizio VW42L went black screen,
Yes,the tv main Tuner signal board it is the problems and the causes it have intermittents shorts in sides.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv main Tuner signal boad for the replacement.
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