Vizio LED screen issues - AVS Forum
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Old 06-19-2014, 06:51 PM - Thread Starter
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Vizio LED screen issues

Hello,

I recently acquired a VIZIO LED M420SL from a friend since it had some issues and i thought i would try and fix it. As seen in the pictures there are a couple things that happen. First, upon startup there are several vertical yellow lines on the left side of the screen. Those go away quickly, but then the left side of the screen is dark and shows trails of everything. I ordered a TCON board of EBAY and put it in today with no luck. Perhaps it was another bad TCON board ($18.00)? or perhaps there is something else going on?

Thanks for any help on this one.
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Old 06-19-2014, 09:08 PM
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if exact same symptom after replacing tcon = defective lcd display panel = not worth your time or money
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Old 06-20-2014, 05:45 PM - Thread Starter
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Could it be a bad capacitor or a bonding issue?
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Old 06-20-2014, 05:55 PM
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Sorry, don't have any information or suggestions on attempting any DIY repair on the panel itself (ie bonding) except search youtube.
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Old 06-20-2014, 06:00 PM - Thread Starter
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Thank you for the response. I have been looking at videos on bonding issues. Do you think this is something it might be. I guess I am wondering what defective lcd means...does that mean bonding?
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Old 06-20-2014, 06:27 PM
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For Tv repair shops, defective panel = replace the Tv unless it's under factory warranty. Tv repair shops do not attempt any repairs on display panels. You know as much as I do if you have seen youtube.
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