Sorry for stirring the pot here, I've been repairing Commodore gear forever and this is a very common issue, drives loading down the EIC bus when connected to the bus but not powered on but usually on older 1541s, the 74LS14 is of the first I suspected right after the 7406 open collectors...
1581 replica boards received, thank you. International shipping was pleasantly fast with respect to how packages are moving lately.
One note though, the 74LS14 provided was marginal, had to replace to allow correct operation > issue was 74LS14 gate locking up IEC bus when drive not powered up...
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