Join Date: Nov 2006
Location: Central North Carolina, USA
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If the 8350 is anything like the Panasonic AE700U I worked on, then the LCD panels require you to take the motherboard out and pull out the optical stack (or whatever you want to call it). There will be three panels (one for R,G,B) that the light goes through - you might be able to find a service manual to help with instructions on taking this out. Any dust blobs could possibly have gotten in there, but I don't know how likely it would be that it could happen during a bulb change. The blobs on my panny happened over time, not instantaneously. It still might be worth trying to clean the panels to see if it helps. If it's not the panels, then I'm not sure what needs to be changed.... hopefully others will chime in with some thoughts.