MATRIXSYNTH: Yamaha CX5M Music Computer SFG-05 FM Sound Synthesizer I

Wednesday, June 24, 2020

Yamaha CX5M Music Computer SFG-05 FM Sound Synthesizer I


via this auction

"Rare refurbished and fully tested SFG-05 FM Sound Synthesizer Unit II for Yamaha CX5M MSX Music Computer in mint working and cosmetic condition.

This upgrade allows a CX5M Music Computer to be controlled wwith any MIDI-compatible keyboard or other controller. The unit is 4-part multi-timbral, using an updated SFG-05 software interface to control the onboard 4-operator FM Synthesizer (build on the same architecture as the Yamaha FB-01 or DX11).

Disclaimer: The unit is a fully tested refurbished unit. I installed an AMD 27C256 Eprom with the new firmware, performed all additional upgrade modifcations, and added an IC socket for the firmware chip, so it can be easily replaced without soldering. I also added a label for the case, based on the original Yamaha design.

The SFG-05 comes in its original packaging and with a copy of the Yamaha SFG-05 hardware/software manual."

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