Hello.
Did anybody have motherboard to this synth ?
We try to repair with no effect and try to put different one but it need to write whole new Linux system to make all drivers work so it cannot be done in easy way…
Thanks for any information.
Of course it’s oasys 88 
only one keyboard with oasys system.
I admitted this because always when I ask Google of Korg oasys motherboard I have oasys pci in replay ( oasys pci card for PC)