Hello, I have a problem with my 8250, I don´t know why my Fmpac japanish doesn´t works in my 8250, it sound very bad and low, but I have too a music module and works perfectly, the scc and psg works perfect too.

The FmPac it´s Ok because I have a 8245 where works perfect.

The Philips NMS 8250, 8255 and 8280 have a soundmixer related design flaw. You can read closely related stuff in this and this forum threads.

And this PDF document gives info on how to solve it.