Vizio M550sv how to fix vertical flashing lines.

SOURCE: display problem for magnavox 42" model 42mf230a/37

first make sure its not an input problem or from an external source.Disconnect all inputs and see if lines are present with no inputs to tv.if lines affect menu and or ON SCREEN DISPAY (top) there is a good chance (SSB) board could be bad .I would start with this board first ,lvds cable (second) and last the logic board (comes only with new LCD)

SOURCE: vertical red line on my Vizio plasma

If the line is horizontal then it could be a y-drive panel ( depending on from ctr where it is ) whether it is the upper or lower board. Time to let a service company look at it, don't wait, more damage is possible the longer you play it.If it goes vertical ( up & down ) then it could be one of two buffer boards.

SOURCE: Vertical lines, 3" wide on LCD flat screen

that could be a panel defect

SOURCE: My vizio TV mdl M550SV

Go to your T.V. menu and make sure you don't have a sleep timer set. If you don't then it could be an internal problem with the T.V.

SOURCE: vizio m550sv turns on and them immediately turns back off

Call VIZIO Support 1-877-698-4946 and discuss the issue. Their sets are run by software "firmware" and it may not have updated proberly when you bought the set. I have had the same problem and it went away after a firmware update. VIZIO will ask you to run a :power discharge" scenario which means you Completely Unplug the unit and PRESS the Power Button on the Back of the Set...HOLDING IT DOWN FOR 3 MINUTES. However, thay may not resolved the issue unitl the firmware is completly updated. This takes a while.