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Beovision 7-40 MK4 picture problem

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igor
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igor posted on Tue, Mar 13 2018 4:01 PM

Own a 7-40 MK4 and have sometimes some moving red shadows in the darker parts or around edges .  Comes and go's after a short time and stays away the de rest off the rest off the evening . Putting the tv off and on is also stopping it .

looks a bit like a T-Con fault but any other course for this behaviour ?  Thanks

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Griebel
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Had the same issue on a BV 7-55. A defective graphic card was the cause. It was replaced, and all went back to normal.
igor
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igor replied on Wed, Mar 14 2018 3:40 PM

And was it expensive to change the module ?

Griebel
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I was lucky enough the tv was still under warranty. Didn’t pay anything.
9 LEE
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9 LEE replied on Fri, Mar 16 2018 3:42 PM

Sorry to be the bearer of bad news (potentially), but if it's a Mk4, with the red shadows and colour distortion, it's almost certainly going to be the panel.

Mk4's had a bad 'batch' of panels, which failed sooner or later.  Similar issues on the Mk3 were usually another component (PIM Module), but the Mk4 having problems is the end of the TV in 85% of cases.

Lee

igor
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igor replied on Sat, Mar 17 2018 9:30 AM

Is there any way to post a picture off my problem to this message ? Maybe that would be easier to show the sometimes  problem . 

Rob.B
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Rob.B replied on Sat, Mar 17 2018 9:58 AM

Definitely sounds like the panel is on its way out. I had one do it a while ago.

 

i now have a V1-32 with the same issue. Thankfully it was only $50

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