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Old 05-02-2018, 06:19 PM   #14
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Join Date: Oct 2012
City & State: Abertillery
My Country: uk
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Posts: 211
Default Re: 55ub850v no picture

Had two of this model both with the issues you describe in the last couple of months both were caused by faulty main boards. In both instances a replacement main board resolved the problem.Also from what I remember the 49" board will also work with no adjustments.
Hope this helps.
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