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Ok so i checked all diodes and the solder points looked good. Here is a breakdown of what is going on drawn on the schematic any ideas coming up from this? Where can i find a schematic for the board that the ribbons are connected to. The keyboard i have is a studiologic sl-990 pro.

Hey everyone! so i have read threw this forum. so good, but i just wanted to make sure that this is what i need to do before i order them. So there are 18 notes in all that are not sending any midi signal It is strange to me that they are grouped in between perfect 5ths so i am thinking that...