SD 2 MODULE on Englisch

[speedy]

Hello,i have a problem with the voices from my module,what is wrong? on midi set or something else?i diden,t nothing i think. Two years ago on store DERA ?They fix it for T2.Some voices i can here ,other c,ant .They set on midi ;all parts and ketron sd2,is this ok ,or not?please whats wrong ,greetings from belgium(my englisch is not so good,i do my best)