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Double Dragon corrupted picture

You don't know how grateful I am to you right now. Thank you so much. The Grand Master just helped me level up. I found the dip switch.

I am testing on MAME right now but I think it's more like the popping is in place of some sounds than general static. For instance in the Intro when the gang punches the girl Mary and walks away with her I hear popping in place of the foot steps. As the garage door goes up there is a car vroom sound I don't hear and that gives a ton of popping, however the BGM and most fighting sounds seem to be fine.
 
I'm going to put your diagnostic chip back in. It has sound tests.
 
Ok all of the FM sounds work through 12 seem to work for me. The press B to stop sound doesn't seem to be working for me. None of the PCM sounds work but in the actual game I definitely hear some some fighting sounds. If I try to play a PCM sound it breaks my ability to plan an FM sounds. I do hear a glitch here and there when I play a pcm sound if I try going though all of them fast.
 
I figured it out. I think its a bad M5205. There are 2 of them both in sockets, and they look different like one has already been replaced. I swapped them and now I hear footsteps and different sounds don't work. That's an easy fix. Going to try and order one now and then just play with it to see if anything else is wrong.
 
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