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
DSR 2000 - Yamaha DSR 2000 - Audiofanzine
Yamaha DSR-2000 | Reverb
Yamaha - DSR-2000 - FM Synthesizer - Catawiki
Yamaha DSR-2000 FM synth: Still powerful! - YouTube
Clavier synthétiseur yamaha dsr 2000 à Céret | Clasf image-video