Forget it! Throw the damn PSU and get another one for $30 if not less..
The job of a fuse is REALLY to prevent a fire. There is no way a fuse will
blow before a transistor will and I'll tell you it doesn't take a hell of a
lot to blow a transistor unless there is some heavy over power clamping
which even then those will blow when 230-240V~ goes into a 150V~PSU.
Good luck getting it working. You might be lucky and it blew up due to a
spike and not the 240 so make sure you change it before trying it with a new
fuse. Doubt it though.
George.
-----Original Message-----
From: Tom Massey [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 30, 2000 9:59 PM
To: [EMAIL PROTECTED]
Subject: Re: [SLUG] [OT] Blown up power supply?
Ken Yap wrote:
>
> >Does anybody know exactly what happens if you plug a computer with a
power
> >supply set to 115 V into an Australian power outlet? I ask because a
>
> You blow the fuse or worse.
Yeah, thought so. Doesn't seem to have effected anything apart from the
power supply though - motherboard, CPU, disk drive all check out OK. So
I'm guessing that there's a fuse blown somewhere inside the power
supply?
> >get it going. This looks to me like the power supply in the original
> >machine has been fried. Anybody have any thoughts on what's happened
>
> Sure looks like it.
>
> >here? Any chance of resurrecting the thing? (To bring it somewhat back on
>
> It might be just the fuse in the power supply, or it might have taken
> out the rectifiers as well.
Anyway of working out which? (Without pulling the thing apart - I really
doubt that there is a way, just asking). And is there any easy way of
fixing this? eg Pushing the fuse back in as you might a blown fuse on
your home power board (probably not I'd think).
> There is a reason those things are boxed, to
> keep out people with suicidal tendencies.
I well understand why they're boxed in. Given that I'm not suicidal,
it's probably not a good idea to undo the screws that say 'Do not undo
these screws', right?
> If you are still keen, there
> is a power supply repair FAQ somewhere on the Net.
I'll have a look for that. Probably won't follow it (I don't want to
stick a screwdriver into a power supplies internals), but I'll have a
look at it.
> If you have a
> compatible power supply from another case, just plonk that one in.
The only spare one I've got at the moment that might do the trick is in
the VT100 you gave me Ken, I've only just got it working OK, so I don't
want to pull it apart. :-)
Tom
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