Vizio E550i-A0

[connie]

55" Vizio LED TV . Screen progressively going black top to bottom, sound is fine. I've already replaced the power supply board and the main board but it didn't help. The only things left to replace are the panel buffer boards (very expensive) and the LED's themselves. Any suggestions?

[budm]

Re: Vizio E550i-A0

Can we see the screen shot of what is showing on the screen so we will have more ideas as to what you are seeing on the screen?

[martyparish]

Re: Vizio E550i-A0

I don't see any "buffer" boards available for this tv. Those are for plasma afaik. It looks like the LEDs are powered from the same power supply.

It sounds like your led strips($40) are going bad. However, without a picture of the problem it is hard to say for sure.

[irad]

Re: Vizio E550i-A0

I've seen this with an overheated tcon board. As the fade to black is happening blow air onto the tcon board.

[tvbobbyd]

Re: Vizio E550i-A0

E550 Vizio left side picture blank/no video when both panel ribbons attached /disconnecting one of the ribbons gives video on the rt side /changed main board must be a bad panel there is no t con on this one Crapp...