[DuoList] 2x 2400 GLOD after long time non-use

[Joe Elliott]

I will be retiring my G3-equipped 2400 from use very soon, if you'd 
be interested in buying the processor daughtercard, or the whole 
machine.  I also have an inoperable NewerTech G3 card that I'd be 
happy to sell for next to nothing to anyone who thinks they can fix 
it.

-Joe


At 12:00 PM -0800 1/14/11, 
duolist-request at listserver.themacintoshguy.com wrote:
>Date: Wed, 24 Nov 2010 18:53:11 +0100
>From: Stefan Kiltz <inteloutsider at gmail.com>
>To: duolist at listserver.themacintoshguy.com
>Subject: [DuoList] 2x 2400 GLOD after long time non-use
>Message-ID: <1C7069A0-7AA0-405D-AD7A-7D57D231D479 at gmail.com>
>Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>
>Hiya people at the duolist,
>long time lurker here with a question to all techies out there. I have 
>two Comets (bog-standard PPC603e 180MHz) not working anymore. Thought 
>I fried the CPU card with the first one. The second one worked fine 
>all the way to me putting it on a shelf for a year. After re-plugging 
>the power, all I get is the dreaded GLOD, followed by a faint (sort of 
>rattling) noise originating vom the power supply daughterboard.  
>Thanks to Ralph Mawyer, who sold me one of his 603e CPU cards, I can 
>rule out a CPU failure.
>Since working with electronics for quite some time (not professionally 
>though), I know that capacitors, in particular the electrolyte 
>capacitors, have a tendency to dry out and losing their capacity. 
>Could it be, that the big capacitors on the power supply daughter card 
>may have gone faulty?
>Second question would be if any of you people sees a chance to bring 
>my NewerTech G3 upgrades back to life - back in the olden day, the 
>first 2400 was my mainstay and I paid a lot of money for that 
>NewerTech 240MHz G3. I believe it ran too hot, though not seeing any 
>signs of excessive heat on the dye/heatsink plate. Maybe some sort of 
>SMD fuse or resistore acting as one needs to be replaced?
>I'd really love to put them Comets back into action again, ideally 
>with the G3 upgrade, which seems to be resembling gold dust these days.
>I'd really appreciate any tips or directions where to dig deeper.
>TaRa
>
>   Stefan