aliensrcooluk at yahoo.co.uk wrote:
stick a
voltmeter on the power lines.
errr... no voltimeter here, nor do i have a clue
where to buy one from (or how to use one).
Get yourself down to a Maplin store - whilst Maplin's don't half sell some
junk these days, they always seemed to have good deals on multimeters. The one
on
www.maplin.co.uk, code GW24B, is 30 pounds and does everything you could
expect of it, plus a few 'features' like capacitance and frequency measurement.
Have you tried
running the machine with the cover off to see what is
getting hot? It might be something as simple as a leaking decoupling
capacitor.
I was planning too, but I had concerns about
being electricuted (spelling?) as I had never
electrocuted - close! :-)
There shouldn't be any mains voltage inside the Amiga - it's all low-voltage
DC. No problem there (just don't use anything metallic whilst the machine's on
obviously, in case you accidentally short something out!)
You can touch the tops of chips to see if any of them are getting over-warm
(that's all relative though as different bits will run hotter than others by
design; if it's too hot to keep your finger on for any length of time then
that's often a good sign that something's wrong!)
Oh, have you checked the hard disk cable, connector on the A600 board, and the
connector on the hard disk itself? Just a thought. Check for damage, bad
connections etc. - I've know hard drives do strange things when the connection
isn't quite behaving itself.
Worth taking the main PCB out of the machine itself too, just to make sure
that a particle of something metallic hasn't worked its way underneath and is
shorting out something that it shouldn't be. Those sorts of 'mechanical'
checks tend to be easy to do before reaching for any test equipment.
cheers
Jules
--
A. Because it destroys the natural flow of conversation.
Q. What's wrong with top posting ?