i doubt that it's the voice roms, because they are shared by a bunch
of other sounds. look at the schematic in the files section; there is
some circuitry after the voice roms that might be faulty.

--- In tr-707@yahoogroups.com , "bronxed01" <bronxed01@...> wrote:
>
> I bought a 707 a while ago for cheap because supposedly some of the
> buttons weren't functioning correctly. When i got it, i found out that
> the only problem was that the kick drums didn't work, they just make
> an incredibly loud buzzing sound. I'm guessing this is because the ROM
> chips for the kick must be broken. How can i fix it
>
> Alexis
>