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Wonderboy bootleg jama distorted graphics
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Topic: Wonderboy bootleg jama distorted graphics (Read 4299 times)
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telonio
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I want to build my own arcade controls!
Wonderboy bootleg jama distorted graphics
«
on:
July 11, 2021, 08:08:35 am »
I have a Wonderboy bootleg 2 layer pcb and as you can see in the photograph, usually it shows distorted graphics. Now when I move the pcb slightly, the graphics are fixed. So I guess that there must be some cold solder joints somewhere, but where?
https://i.postimg.cc/GhwvYTNX/20210711-143332.jpg
Thanks,
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Mike A
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This plan is foolproof
Re: Wonderboy bootleg jama distorted graphics
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Reply #1 on:
July 11, 2021, 08:53:48 am »
Get a magnifying glass and look for the cold joint?
Push on individual chips and see if the image distorts.
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pbj
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Obey.
Re: Wonderboy bootleg jama distorted graphics
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Reply #2 on:
July 11, 2021, 09:53:31 am »
Unseat and reseat the socketed chips.
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Wonderboy bootleg jama distorted graphics