2 Nov
2010
2 Nov
'10
6:51 a.m.
On 02/11/10 13:36, Chuck Guzis wrote:
A word of caution here--observe that the 4-pin power
connector looks
exactly like a standard 3.5" conector, but the +12 and +5 leads are
interchanged. If you try to use a power connector wired for a 3.5"
drive, you'll make magic smoke.
So I noticed... but not before wiring up the EME231 with +5 and +12
reversed.
Thankfully the magic smoke didn't escape, but the motor refused to spin,
and the controller chip got *really* *really* *hot*. Fixed the cable and
now the motor, activity LED and so on are working. Unfortunately all I
have are blank discs, so I have no way to tell if the total lack of
/RDDATA transitions means I've blown the read amp, or if it's just
because the discs are blank.
Thanks,
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/