D9200 loses focus

neopolss

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Donor 6 years: 2013, 2016-2020
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My d9200 monitor will have a fantastcic picture, then will slowly lose focus until it looks like crap, then will snap back into perfect focus again. Ive heard it can be neckboard or flyback related. I was fortunate to have another non working d9200 to pull parts from. Switching the neckboard causes the focus problem to go away. So its a neckboard issue. I tested all caps and they test good with my blue esr reader. Any other components on the neck board that can cause this?
 
Neck board socket?

try to take the neck board socket apart
and squeeze the pins together in case they are to loose.
and the wire is not touching good inside the socket.
 
Last edited:
I reseated the neckboard and definitely see a difference. Now there is a slight pulse though it, but I'm fairly certain it is related to some grounding issues in the cab as opposed to the monitor. Focus is great now.
 
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