The 'knocking' option is most likely since it has been sitting a while,
but here is the procedure I generally follow. Remember that if it comes
up you'll want to copy all the data possible to other storage, so have
another storage media online in case it comes up.
First step is to listen. See if it spins up when you apply power to the
drive, you should hear a slow whine increasing in pitch as the drive
comes up to speed. Once it has been up for 3-4 seconds, the drive
should be making an even, steady noise from the motor. You will also
hear some mild scraping or clicking or whirring as the drive
'recalabrates' by move the drive heads around, it should return to the
steady motor noise afterwards.
If you do not hear teh drive spin up, gently knock on the spindle as you
power the drive up. Sometime there is enough power but it can't
overcome the friction cause by worn (old) barrings. All that needs to
be done is to jar them slightly to break them loose, especially if the
drive has been sitting a while. DO NOT knock onthe drive unless it is
not spinning.
If you hear the drive spinning unevenly or hear a waivering pitch as it
spins, reorient the drive, turn it sideways or whatever and try again.
The drive may not be coming up to proper rotational speed. This can be
cause by old barrings, a weak motor, or bad power supply.
Second step is to replace the power supply to the drive, and see if that
helps. Older drives require a big electrical push to get them going and
power supplies over time tend to fade.
Third, reseat the termination and try different cables.
Fourth, check the jumper setting, reseat the jumpers.
If none of this works, find an identicle working drive and swap the
electronics.
Good luck, let us know if there is anything you need.
Thankx,
Ed
> I have a TMS pro drive formatted 6.01 varios prodos partitions. Last I turned on the GS ( 4 meg Ram, Apple HS-SCSI) several months ago it worked. But now it wont
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