I bought a rottendog MPU004 for a data East Simpsons. I was told I’d have to move the microprocessor chip over to the new board from the old one.

Not sure why they’d figure that makes any sense as that chip is located directly underneath the old battery holder, which is the reason most of these boards need replacement anyway.

So anyhow, here is the old chip which I need to move over. The legs are all nice and corroded so I need a new chip for the new board.

I can’t seem to find an exact replacement…will any of the 6802p chips I’m finding for sale work?

The old chip is here:
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Thanks fellas !

I still don’t know why they don’t include this chip on the board. Seems silly. Charge an extra $10.

It’s directly below the battery holder !!

There’s only one rottendog, that’s for sure.

Well I had to roll the dice as I need the chip and have to give it a shot.

Have I mentioned how stupid it is that the Rottendog boards don't come with one installed? The chip is located 2 inches below the battery holder on the original boards so surely most are ruined by leaking batteries.

Went with K's Arcade as I suppose if their chips weren't working right they'd know about it. Hopefully it works out.

Just a heads up the chip from K’s arcade worked and I’m back in business!