6 Apr
2012
6 Apr
'12
3:16 p.m.
> Common causes of problesm with the spindle motor
electronics are the
> power transsitors that drive the motor windings, whcih are easy to
> test
I don't know how familiar you are with the motor control board on the RD53,
but there appear to be a total of 8 largish transistors along the two edges
of the board (4 on each side), attached to the casing to dissipate the heat.
I assume these are the ones you mean, correct? I will swap the motor control
board from another disk first. I know you don't like board swapping, but it
seems like a quick way to narrow down where the fault might be.
Regards
Rob