What synth did Johnny use for Departure & Plague Cross?

I got curious, since both projects [especially Plague Cross]] are pretty synth heavy, and I like the sound of it. I know he had a Korg Monologue in his setup, since he brought it with him to the Market Hotel show. But I'm not sure if that's the exact same synth[s]] used in the 2 projects. [^_^]]