via this auction
"The bundle of equipment includes the following:Yamaha CX5MII/128 Music computer,
FM Sound Synthesiser Unit II SFG-05 module
Voicing Module DX7 YRM-103 module
YK-20 Yamaha Music Computer Keyboard
Everything seems to be in good condition with the synthesiser and voicing modules still in their original boxes.
Please contact me if you have any questions. I do not know much about the synthesiser but I found the following description if that helps, though of course I cannot guarantee the accuracy of the information!MSX midi computer with built in 8 note polyphonic multi-timbral FM (frequency modulation) sound synthesiser unit.
• Midi in & out
• Stereo output
• Sound generator equivilent to Yamaha DX synths(eg. DX 27/DX 100) but with huge advantage of on-screen editing (as apposed to synths' tiny LCD)
CLICK LINK FOR:-
Yamaha Music Computer CX5MII Owner's Manual
The Yamaha CX5MII/128 is an extremely rare MSX synthesizer/music computer from 1985. The CX5MII/128 was the third Yamaha MSX computer and was aimed squarely at the music market. It has additional memory, but is very similar in operation to the original CX5M. The main difference is the presence of the SFG-05 sound module offering the ability to use a MIDI controller keyboard instead of the YK-01/10/20 series keyboards and no need for the external power 'brick'. The synthesis is exactly the same as that of a Yamaha DX-27 or Yamaha DX-100.
Detailed Specifications:
* Sound Generator: FM (4 Operator, 8 Algorithms)
* Polyphony: 8 Notes
* Internal Voices: 46
* Connections: MIDI In/Out, Audio L/R, Keyboard In, General - Video, Audio, RGB, RF, Cassette, Joystick 1/2."
