Replace DSP in Virus B/Indigo

[Phase 4]

Hi all,

Does anyone know if its possible to replace the DSP in my Virus Indigo 1?
It freezes as soon as I touch a key or send any MIDI to it, I think it may have something to do with the DSP dying.
I have a (hand drawn) schematic of the motherboard telling me the CPU and DSP, i think both are still in production.

Really can't be bothered sending it off to SSD, so any help would be greatly appreciated (:

Thanks in advance

Phase 4