Re: How to Fix your Vizio M470NV and M550NV

Quick update. I've noticed that this red/magenta "shimmer" and "HDMI No Signal" fixes itself after the TV has been on for sometime. My theory is that heat causes the soder balls to expand eventually bridging the spotty connections.

Re: How to Fix your Vizio M470NV and M550NV

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Re: Vizios M470NV, XVT3D42, XVT37SV All With Same Red Shimmer Problem..

Hi, sorry for reviving this thread but I have the same issue. Did you figure out what the cause was? I just got a replacement mainboard and this is exactly what happens. The HDMI would also sometimes cut in and out and it would sort of fix itself after some time.

Re: How to Fix your Vizio M470NV and M550NV

Hi, I'm new to this forum but I've been lurking for a while. I just got a replacement mainboard and I've attached images to show what's happening. The picture would flicker and it would seem to fix itself after a few minutes. It's not limited to HDMI. I would also randomly get HDMI no signal but eventually does come back. I'm starting to suspect that the main CPU is on its last legs and needs to be re-balled. Any idea what could be causing this? Any help would be greatly appreciated....