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Lethal Enforcers KONAMI 054986A Capacitor Replacement & Audio Fix Schematic

Posted on October 19, 2011 by tkrn

The Lethal Enforcers Konami 054986A is an ‘special’ audio processor on select Konami arcades. Lethal Enforcers made by Konami has this audio processor. When I purchased the arcade the audio was fine but by the time the arcade was transferred to a different location the audio became low, muffled and it clearly sounded like there was an issue. After a bit of research, I found out that capacitors looks their ability to hold energy.

Below is the schematic of the top side of the 054986A audio processor. Their is a bottom side and I hope you do not need to replace anything on the bottom side because it will result in un-solidering 64 pins just to get to the bottom. I hope you do not have to do that. If you do need to do that make sure you have a 6-pack of Great Lakes Dortmunder Gold on hand.

This is what it looks like repaired!

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