Street Fighter EX2 plus missing stage music

[Arcade-Projects]

I just bought a SF EX2+, everything seems to be working fine except it's missing the background stage music and character select music.

When I go to sound test it doesn't seem to play anything, when I check the roms, a few roms say "NG" and the screen would freeze and needs a hard reset.

The sound is currently hooked up from the jamma connection, the board also has a Q-sound stereo out but I haven't had the chance to test it yet.

Could it be that music only plays through Q-sound stereo? Or there is some error in the music?

Have anyone experience something similar before?

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