Aero Fighters 2 MVS Sound problem

Hi,

when i made my way through the first 10 levels, all was fine. But when level 11 starts, no music and no sound fx is played. In level 12, 13, ... then, there is only the music. Anybody could help?

bye apus

Are the pins in good condition? Try giving it a good clean and see how it goes from there.

brilliant site for MVS info!

<a href="http://www.hardmvs.com/html/cleaning.htm" target="_blank">Clean MVS cart</a>

Ok,

i went through the whole steps, still no better result. Cleaned the cart (although the cart was in very good condition), cleaned the slots, tested the cart in both slots (i got the 2-slot MVS). Still no sfx, music in level 10 and only music in level 10+. If theres music in the end sequence (i dont know cause this is the only AF2 cart i have) theres no music/sfx, too).

Damn, what should i do now?

bye apus

PS: cart isnt a bootleg (at least it seems to be authentic, cause orig. SNK PCBs)