On 10-Feb-2002 Tothwolf wrote:
> Uhm, have you checked the output voltages since you replaced the diode? If
> it only works for a few seconds before it shuts down, that should be
> possible.
I wasn't there when they tried to repair it. So I don't know if they checked
the voltages after they saw it shut down in the first place. But they where
pretty sure that the error is somewhere in the control circuits and no one
(me included) wanted to touch those. :-)
Especially after someone (who should know) told us that it's extremly
difficult to fix such a PSU even if the schematics are available...
> If they are not over-voltage, maybe it is shutting down due to
> no load? Many switching supplies do that...
I've seen PSUs not start up at all without load, but a PSU which starts up,
detects that there's no load and shuts down again?
Of course that would explain the large amount of control circuits...
I'll add a dummy-load and try again.
I think it could also be possible that the computer somehow has to tell
the PSU what to do...
bye
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Received on Sun Feb 10 2002 - 08:04:48 GMT