Help Needed. Higher octaves on the left !! How do I change

[Lakshminarayan VS]

I had a "Blank Display" problem with my Korg Kross-88. I replaced the KLM-3188 board (supplied by Korg). The initial problem of 'display remaining blank' has been rectified and the Programs load properly. But we observe the Octaves are transposed from left to right i.e. Higher notes are on the left and Lower notes are on the right. We have repeatedly ensured the hardware installation is correct. We have tried various user settings with no success.

How do I fix this issue?? The keyboard is practically un-usable now with the higher notes on the left and the lower notes on the right. I am sure that there should be a quick Global Settings option, but I dont see it on the User Manual.