8 keys in a row on my key board do not play sound..

It starts from the 8th key from the left…and continues 8 keys and then the rest play again…

Ive clean the board connector and rubber boot button..idk.. im new to keyboard i got it used…so…

Was hopen it was fixable…..

5.23.2020

I actually found out the problem…..on my own…

On the control board the c120 circuit has burnt out…..

So… im looking next to figure out how to it replaced…

Anyways…