Macross_VF1 Posted November 20, 2018 Share Posted November 20, 2018 Hi Atari enthusiasts, new poster here!For several years I've had an Atari XEGS that I've never been able to get to work. However I've finally gotten off my lazy arse and started doing some troubleshooting. Unfortunately I don't have the original PSU but from my understanding, a PSU from a 600XL will work just fine. Just to be sure I checked the 600XL PSU first to ensure it doesn't suffer from any problems. And sure enough, it provides a very steady 5.2V on the proper pins. However when I plug it into the XEGS, and check the voltage from inside the machine it drops to a paltry 0.05V. And no that's not a misreading, I even checked with other settings on my multi meter and the most precise measurement I get is 54 millivolt. What the heck is going on here? Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted November 20, 2018 Share Posted November 20, 2018 (edited) does the power supply work on another Atari? if yes... look at capacitors near or connected to the XEGS power switch, make sure none are shorted... also, a search of the forum, may reveal a recent thread about a similar XEGS issue, reading those posts might be helpful to you and conversation might ensue. I seem to recall one like this in the past year or so... Edited November 20, 2018 by _The Doctor__ Quote Link to comment Share on other sites More sharing options...
Macross_VF1 Posted November 20, 2018 Author Share Posted November 20, 2018 I've tried searching the forum but honestly it's like finding a needle in a haystack. That or I'm just crap with this forum's search function.Anyway, the PSU works perfectly with the 600XL I borrowed it from. I have checked the capacitors you mentioned and for good measure I checked the rest of them as well. If I'm doing this correctly then it seems that every cap bar one or two is dead so I might have to do a full recap on this one. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted November 20, 2018 Share Posted November 20, 2018 (edited) okay every cap shouldn't be dead, but something on the line is. look carefully for bulged caps or leaky caps, next I'd check for a chip that gets hotter than the others... ram is usually first to go, then a support chip, freddy then the XEGS rom. cpu as of late, that's been the fail popularity list Edited November 20, 2018 by _The Doctor__ Quote Link to comment Share on other sites More sharing options...
Macross_VF1 Posted November 20, 2018 Author Share Posted November 20, 2018 There is one cap that might be leaking but it's mounted so close to the board that I have to desolder it to get a better look, and I currently don't have any I can replace it with so I'm holding off on that until I get one. Quote Link to comment Share on other sites More sharing options...
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