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From: dpm@k.gp.cs.cmu.edu (David Maynard)
Newsgroups: comp.sys.amiga
Subject: A2000 Power Supply
Message-ID: <8249@pt.cs.cmu.edu>
Date: 2 Mar 90 14:53:34 GMT
Organization: Carnegie-Mellon University, CS/RI
Lines: 25


A friend of mine has an Amiga 2000 that stopped working a few weeks ago.
When he turns it on, the power light comes on for a few seconds and then
shuts off.  He disconnected the power supply and discovered that it will
only deliver a small amount of current before shutting down (using different
resistor loads well within rating).  He also noticed that the fan appears to
be broken (even when run from a different power supply).  Our guess is that
the fan may have failed causing the power supply to fail.  Has anyone else
seen such a failure?  Is it likely that the board is still okay?

So far he hasn't found anywhere that has the power supply in stock.  It
looks like it will cost ~$180 when places do get them.  So the question is,
can we hook up a standard (~200W ?) PC power supply?  The Commodore supply
only lists +5, -5, +12, and -12 voltages which are all standard, so it would
seem that a little custom cabling (and a large, ungainly external power
supply) would fix things for <$75.  Would he need to add a cooling fan to
the enclosure (it is currently a 2-floppy system with no expansion boards)?

Thanks for any suggestions,
David
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 David P. Maynard (dpm@cs.cmu.edu)
 Dept. of Electrical and Computer Engineering
 Carnegie Mellon University, Pittsburgh, PA  15213
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