My RC2014 Pro went south

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Maurice Onraet

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Jun 7, 2025, 9:49:19 PMJun 7
to RC2014-Z80
Hello RD2014 Group,

I changed the jumpers on my RC2014 Pro to change the mode to BASIC, and my unit seemed to give up the ghost.  I have been probing the address bus, looks good, 5V looks fine. D0 looks stuck high during WR, see attached.

Nothing from Port A to my computer using puTTY.. The LED Stays on on my CDC Serial Adaptor after hitting the space bar on my computer a couple times.

Any suggestions would be greatly appreciated.

Thanks,
Maurice
20250607_195134.jpg

Spencer Owen

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Jun 9, 2025, 12:59:57 PMJun 9
to rc201...@googlegroups.com
Hi Maurice,

Sorry for the delay in spotting this post. However, following on from our emails, it looks like you have tracked things down to the SIO/2 chip, so hopefully the parts that shipped to you today will get you up and running again.

Spencer

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