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- From: ASanta-Pinter@ezin.net (Alex Santa-Pinter)
- Organization: Alex & Co.
- Date: Fri, 29 Mar 96 15:50:48 GMT
- Subject: Re: Help, please! A3000 Totally Dead?
- Message-ID: <N.032996.095048.47@pool13.ezin.net>
- Newsgroups: comp.sys.amiga.hardware
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- References: <N.032696.232903.07@pool12.ezin.net>
- <199603290822.JAA08682@server1.expograph.nl>
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- Path: news.ezin.net!
-
-
- > Hi,
- >
- > In article ... Alex@ezin.net
- > (Alex) wrote:
- >
- > > Please, has anyone ever had a Amiga 3000 that shorts out the power supply?
- > > This is a 16MHz 3000, made in Hong Kong, Rev 7.12 (at least it LOOKS
- > like 7.12)
- > > motherboard.
- > > After removing ALL the socketed chips and ALL devices that can plug into
- > a 3000, the
- > > power supply (and I tested with more than one different power supplies!)
- > still goes
- > > into thermal shutdown.
- > > No visible shorts, no trauma, no strange jumper settings, no solder
- > blobs, nothing
- > > unusual-looking on the motherboard.
- > >
- > > If you've had this happen, know why it might, or can suggest
- > troubleshooting hints:
- > > Please contact me!
-
- > Edgar Zuman says:
- > You should never turn on the power supply without anything connected to it.
- > Some power supllies shutdown when nothing is connected to it. This could
- > also be the case in your A3000. Check that the power-connecter on your
- > motherboard is soldered ok. Also check that the power goes to all the
- > chips of your computer.
-
- Thanks for bringing this up, I failed to mention that I tried powering up with more
- than one power supply. My workbench supply will NOT shut itself down if not loaded.
- It WILL, however, if overloaded, and this motherboard is the first device that has
- overloaded it. Therefore I can't test voltages on chips since I can't get any there!
-
- Any other ideas?
-
- ----
- Thanks, Ciao!
-
- Alex
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