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Final Fight audio Issue

Nimmers

Grand Master
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Hey guys,

I have been playing a lot of Final Fight lately. I've noticed this thing happening, seems to be pretty rare but I'm not sure if it's normal or a sign of something on it's way out. For context I have been playing a couple of hours a night chasing a score goal of mine.

So what happens very occasionally is somewhere in a stage section the SFX will just cut out but the Music will stay working fine. Then when you get to the end of the stage everything comes back. Its maybe done it 3 or 4 times in the last 2 weeks. I got a recording of it happening if it helps anyone.

Anyone have any insights? Maybe I need to recap my A board? Its 36 years old I guess.

Cheers!
 
please give more information. Is the PCB original or a conversion? Showing a couple of pictures will help detecting some issues or leaking caps. In any case, yes, recapping the audio section might be the solution.
 
Hey guys,

I have been playing a lot of Final Fight lately. I've noticed this thing happening, seems to be pretty rare but I'm not sure if it's normal or a sign of something on it's way out. For context I have been playing a couple of hours a night chasing a score goal of mine.

So what happens very occasionally is somewhere in a stage section the SFX will just cut out but the Music will stay working fine. Then when you get to the end of the stage everything comes back. Its maybe done it 3 or 4 times in the last 2 weeks. I got a recording of it happening if it helps anyone.

Anyone have any insights? Maybe I need to recap my A board? Its 36 years old I guess.

Cheers!
If it's an original board, then it's probably the oki chip failing.
 
It's an original B+C with a long A board. I'm thinking it might actually be a bug. It happens so infrequently. I've been grinding for a high score for weeks now, it hasn't done it again since I posted this.
 
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