Hello everyone!
Metal bodies ESQ-1 - has 8 dead keys, starting at middle C, all in a row
Swapped the cable, no change - swapped in another keyed that has other problems, and those 8 notes work, so I assume its not the keyboard IC -
Diodes LOOK fine but I assume that may be the problem? Would it be each individual diode? Anyways pulled the keyboard circuit board out looks fine on the underside besides some normal age related corrosion -
Good place to start for troubleshooting dead keys 1 octave 8 notes?
thanks!
tom