Ensoniq ASR-10 Keyboard Calibration Error

I Have an Ensonq ASR-10 with the “Keyboard Calibration Error”
I recently changed the 10 pin connector between the two boards under the keyboardn but the problem persists.

tried to boot the unit withouth the cable between the motherboard and the keyboard, but the unit doesn’t boot up.
Is there a way to bypass the keyboard and use the unit via midi? Does anyone know the pinout of the cable that connects the motherboard to the keyboard?

Thank you

Have you tried using the unit via MIDI after the calibration failed? I think if it boots but the calibration fails the keyboard will just be disabled. This would leave you to be able use it through MIDI. I’m not positive of this but I think I have heard of that before. It’s worth a try