Mk4 Pcb problem- Help!

AneesAbdalla

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Kisra, IL, Israel
I have an mk4 pcb that I purchased recently.
Plugged it into my cab and fired it up
And it shows an error on wave ram bank 0 on the test
Then it resets and does the exact thing over and over again so the game never runs .
I have another mk4 pcb I plugged it in at the same voltage set as the bad pcb and it boots up and plays just fine
So I don't think it's a voltage problem or jamma connection problem as everything is installed correctly .
I uploaded a picture of the error that shows on test .
I'm looking for someone who can fix this as it's surface mounted and I don't know how to replace it
 

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I recommend you ask over on the Arcade Otaku forum. Lots of Europeans over there.

I've fixed a few of those MK4 boards, but with the current tariff situation, I'm not doing international repairs.
 
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