Hi everyone, long time away from here, but I'm back into the arcade world. It turns out I have an Atomiswave board with a single game: a bootleg Metal Slug 6. It plays fine graphically, but the sound is strange: some parts sound correctly (music, for instance), but some other parts (some voices and sound effects) sound too low to be heard clearly, but they do sound, even if faintly. I'm not sure what can cause this: are bootleg MS6 carts known to do this? maybe the board already needs a recap? I'm using the standard JAMMA mono output, so I configured (AFAIK) the board for such output. Thanks for any pointers.