6 Apr
2012
6 Apr
'12
11:32 a.m.
I acquired an RD53 disk recently. I have just been trying it out. The heads
were stuck, as usual, but the main thing is that the disk itself will not
rotate. The locking mechanism that keeps the heads parked releases on power
up but that is all that happens.
I have not come across this particular kind of failure before, does anyone
have any suggestions for common causes of this kind of failure?
Not specifically for the RD53, but I've had winchesters that don't spin...
Firstly, I assume you openeed the HDA to free the heads, Can you try to
rotate the disks in the correct direction (obivous if you look at the
heads). Just to make sure it's not mechancially jammed.
Common causes of problesm with the spindle motor electronics are the
power transsitors that drive the motor windings, whcih are easy to test
and replace, and the hall-effect sensors inside the motor, which are
almost impossible to get to
-tony