Posted By
crock
on 2011-12-01
09:57:42
 |  Re: Is there any 1551 head alignment or rpm tools?
I attached the mechanism to an old 1541 and used the FreeSpirit drive alignment program on a C64. You need to rotate the stepper motor slowly and look for good alignment to half tracks.
It's not too difficult when you get the knack of it. If you think the mechanism is trashed, check the resistances across the wires to the read/write head. It should be between 12 and 25 ohms across any combination, anything significantly higher means the head is toast.
Rob
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