Emu XL-7 & MP-7 User's Group

Hello everybody,

I would like to change some switch, the little one how can mute on/off 
track on xl7.

Is anybody know the reference of this part , or where to find the 
datasheet?

I also have an asrx and i think it is the same part, is anybody can 
confirm me this?

Thanks before.

An happy user of e-mu synth and sampler.