Korg Krome 61, 73 y 88 same mainbord

Hello dear colleagues! Brief technical consultation from Argentina. We have a Korg Krome 73 with a Krome 61 motherboard. Unsurprisingly, the first octave of the keys doesn’t work, however the two motherboards (73 & 61) are the same KLM-3119. Should we make any adjustments so that it detects the last keys?