Roland Alpha Juno-2  Synthesizer powers on and works, Lower Sec Of Keys WorkRoland Alpha Juno-2  Synthesizer powers on and works, Lower Sec Of Keys Work

Roland Juno 2 powers on and lower half of the keys work good. I have a piece of blue tape that shows where they stop (see photos) I’m not sure why it stops at that point, people have suggested a bad ribbon cable but I don’t know.