Originally Posted By hammer
It now works!! Had to reset a controller setting. Roland
Support took about 30 seconds to solve the issue.
The IF Switch in midi settings had to be OFF.

Anyone know what the IF switch does?
Deane


Hi Deane,

I found the answer on P. 66 of the Roland A300/500/800 PRO MIDI controller keyboard owner's manual (https://static.roland.com/assets/media/pdf/A-300PRO_500PRO_800PRO_R_eng10_W.pdf):


MIDI I/F switch has to be OFF if you want your A-PRO controller to be able to exchange MIDI messages with your external MIDI device, which is the Ketron SD90 module, with or without a computer as shown in the above diagram.

If you have the MIDI I/F switch ON, your A-PRO controller will act as a MIDI interface. All the MIDI messages have to route through a computer.

In your case, a computer is not needed between your A-800 PRO keyboard and the Ketron SD90 module, so the MIDI I/F has to be OFF.

Thanks,
Paul


Edited by zionip (10/23/18 04:16 PM)
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Yamaha Genos, Ketron SD90, Korg Kronos 2 88, Korg PA1000, Casio Privia PX560