Found another old time beast! This is the Yamaha Dsr-2000: fm monster with a ton of functions, pitch and mod wheel, voice data screen for patch adjustments, and even the option of
Yamaha DSR-1000 80's Black | Reverb
Clavier arrangeur yamaha dsr 1000 - full pack - vintage à Yvré L'Évêque | Clasf image-video
Vintage Polyphonic FM Synthesizer - Yamaha DSR-1000 (1987) - Catawiki