help with a k7901

paul400

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ok, I rebuilt this chassis caps and flyback,fired it up and looked good. turned down the brightness alittle and I heard kinda of sizzling sound looked at the screen at it had lots of static and was blacking out a bit. WhenI turn the brightness back up it stops but its a bit to bright. i belive it is coming from the neck board also focus can make it start to sizzle. i reflowed everthing on the neckboard with no luck. I think it might be P201 but not sure. I wiggled it and it got better but not totally. any help would be great.
 

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Ok. Swapped out the neckboard and fixed the issue. Has anyone heard of this problem and how to fix it since my spare chassis is down now.
 
I'd check/clean and/or replace any of the pots on the neckboard and check/resolder all solder points and verify continuity on the traces to be sure something hasn't broken or come loose.
 
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