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Author Topic: Sys 80 Non CPU boot/IRQ issue  (Read 3457 times)

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Offline MartyJ

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Re: Sys 80 Non CPU boot/IRQ issue
« Reply #30 on: May 12, 2009, 10:01:34 PM »
U5 reseated again.

Out of about 10 powerups, IRQ is constantly getting stuck high.

I am happy to replace U2/U3 if required.  Is there anything I can check before pin 4 on U1 if it is causing issues with the IRQ?
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