cowboy o moo mesa original Konami, N4 DEVICE ERROR.

shinobi3

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cowboy o moo mesa original Konami, N4 DEVICE ERROR.

Hi

The pcb not work, only display N4 DEVICE ERROR.

The chip N4 is a custom Konami 053990.

Do you have any idea?

Thank you
 
I saw a custom chip smc, which has rust on the pins, is far from the N4, but could be the fault.

Is there any way to clean it?

Perhaps with a little solder paste?
 
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