HP-71B Startup Time - ROM Differences

[J-F Garnier]

(09-11-2014 12:57 PM)rprosperi Wrote:  ... my conclusion is this has nothing at all to do with HP-IL, and the memory config has somehow been wacked in a strange way.

Yes, it seems so. Corrupted file chain (especially in independent memory port) can cause a delay. It happened to me with an EPROM module, which appears to the HP-71B as a corrupted CAT chain. Turn-on was delayed by several seconds, but I don't remember any effect related to short or long off time, like you.
You could check if you have independent RAM ports (SHOW PORT), and clear them (CLAIM PORT).
Last chance will be a global memory clear.

J-F