
Yamaha DX7 and DX9 Service Manual Items for Sale on Reverb Version 1.9 released 07-1988 (servicing ROM XC314007) User Demo Videos Version 1.8 release date unknown (servicing ROM XC314006) Version 1.6 released 04-1987 (has built in test program) Version 1.5 release date unknown (Japanese market) Keyboard: 61 keys with velocity and aftertouch The DX7 engine was reimplemented in the PLG100-DX and PLG150-DX plugin boards, and later as the Yamaha Reface DX. They had various features, including more patch memories, better MIDI support, arpeggiators, delay, layering improvements, and other features.


Revised versions of the DX7 were released as the DX7S, DX7IID, and DX7IIFD.Ī number of aftermarket ROMs and modifications were produced, including the Grey Matter E! board and the SuperMax. The DX1 and DX5 were higher-end models and the DX9 a lower-end model available at the same time. The DX7 is also available in rackmount form as the TX802. Its sound dominates many recordings from the 1980's. The Yamaha DX7 is a six-operator FM synthesizer and one of the best-selling hardware synths of all time, with more than 200,000 units sold.
