casio sa- rom/IC's

[dimefan90]

is it possible to reaplce the rom or ic of a sa-9 with that of an sa-20.

i would love for my sa-9 to have wake me up before you go go as the demo. and if it is possible would the 9 have 4 note polyphony?

[LoFi-Ninja]

Check the datasheets.. And no it's probably not possible..

[Matt the Modulator]

The rom is the synth so if you put the ic of the sa 20 into a sa9 then you have a sa20 in the case of a sa9 ?? which has less buttons etc i think? propably pointless also