On Wed, Jun 01, 2016 at 02:55:35PM +0000, Vincenzo Vincenzo
sarvamala@... [korgpolyex] wrote:
> time ago, a group member had reported problems with the joystick and was solved by changing the integrated IC17 (TC40h74P) ..
> I contacted him because I also have problems with the joystick and confirmed that I had solved by replacing IC17.
> Unfortunately in Italy the integrated IC17 is nowhere to be found, just find I follow the advice he gave me the user group on replacing the IC17.
> for now I can not help you more, I hope you can be useful as a hint.
How do you know this chip is faulty? What exactly is the problem with the joystick?
A suitable replacement for IC17 is probably 74HC74.
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Gordonjcp MM0YEQ