So far we have tried 5 RA81 and 1 RA80 disk at the RICM. They all have
the same symptom, when you push the RUN button. The drive starts to
spin up for just a few seconds, then stops and lights the FAULT light.
We ran diags on one of the drives. The details are here:
https://sites.google.com/site/ricmwarehouse/Home/equipment/dec-pdp-1144/pdp…
We made sure that the heads were unlocked and the drive belt was engauged.
Debug suggestions would be appreciated.
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Michael Thompson