Poly800 first eight keys muddled with button actions

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Re: Poly800 first eight keys muddled with button actions

Post by madtheory » Tue Jun 08, 2021 7:23 pm

Have you checked that the 8155 io chip is doing what it is supposed to? Off the data sheet? I assume you have the service manual? Because 8155 is programmable, you'll need the Poly 800 service manual to know exactly what it's supposed to be doing in this application.

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