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samsung prisim sheet
call me al:
Hi all .Has anyone experiance of how to deal with damaged prisim sheets especally relating to Samsung tvs.Am coming across a lot of sets with faulty backlights but also damaged/cracked prisim sheets.Is there any solution to this as replacment sheets don,t seem to be avaliable.Any feedback very welcome and appreciated
downunder:
Hi Al, This problem applies especially to the NU series where the Diffuser sheet sits directly on the LED strips on the bottom. As well as causing cracks to the sheet, it also blackens the bottom edge so preventing light getting through. I read where someone simply moved the sheet so the bottom was at the top but those cracks are still going to degrade the picture. My solution is to show the customer the damage, or take pictures, and write the TV off. Only other solution is panel replacement, which puts it beyond reasonable repair. Bruce
call me al:
Hi Bruce.Many thanks for your reply,that,s exactly whats happening,burn marks,cracking as you describe.Was wondering would it be possible to use a sheet of a bigger set and cut it to size as have a few scrap 55"Samsung.
downunder:
Has possibilities. Didn't think of that. Might be worth a shot instead of scrapping it.
downunder:
Tried reversing the diffuser today on a 40" Samsung. The sheet wasn't cracked and had a few corrugations where it sat on the led strip. Repaired the led strip and the pictrure looked fairly presentable. The backlights were of course set on max, so I turned them down.
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