Post by bbkeys on Nov 23, 2020 12:08:49 GMT -5
I have recently acquired a Philips Philicorda 22GM752 which had a number of issues when I first got it, all of which I have now managed to fix apart from the one issue remaining which is that all of the F# keys are not working. I have examined the circuit board and its components and can't see anything obvious and in case it may have been a cold solder joint on the oscillator or elsewhere causing the problem I have reflowed the solder on that and the rest of the board relating to the note of F# but the problem remains. Not too sure where to go from here with regards to fault finding and repair so I was hoping that someone here could help me out. Any insight and assistance would be greatly appreciated.