Chords on Mpc 2500

Hi Felows Mpc Users .. i have a litke question. I changed in may Mpc 2500 the j osxlcd since then the chord funtion doesn`t reproduces the cords inserted to the pads. may be someone up here have have had the same problem but solved ? Please Help thanks in advance.
Maquela

Hey Maquela can you explain a little more?I love the chord feature and would love to help if you could provide more information.