atari8warez Posted February 26, 2015 Share Posted February 26, 2015 Some of my Atari power supplies seem to be giving up the ghost lately. This is the second C061982 ("The Box"), which failed recently. All I am getting from my computers is a scrambled screen like in the video below when I try to use the power supply. The voltage with computer turned OFF is 5.17v at the power connector, it drops to 4.50v with the power switch turned ON. My question is what could possibly go wrong with this type of power supply. I never opened one to look inside and thought I might ask here first before grabbing my dremel with a cutting disk. Quote Link to comment Share on other sites More sharing options...
RodLightning Posted February 26, 2015 Share Posted February 26, 2015 Electrolytic capacitors in the supply might need to be replaced if you can get to them. Quote Link to comment Share on other sites More sharing options...
atari8warez Posted February 26, 2015 Author Share Posted February 26, 2015 (edited) You're right.... I went ahead and took the dremel to "The Box" anyway. It looks like (and measures like) both electrolytics have gone south. Need to get some fresh ones.. Edited February 26, 2015 by atari8warez Quote Link to comment Share on other sites More sharing options...
atari8warez Posted February 26, 2015 Author Share Posted February 26, 2015 Looks ugly in there... 2 Quote Link to comment Share on other sites More sharing options...
RodLightning Posted February 27, 2015 Share Posted February 27, 2015 I wish the ingot type supplies could be opened like that! Quote Link to comment Share on other sites More sharing options...
atari8warez Posted February 27, 2015 Author Share Posted February 27, 2015 It would even have been better if they used screws instead of epoxy on the enclosure. They made these PS to be thrown away even when the fuse is blown, such a waste!.. 1 Quote Link to comment Share on other sites More sharing options...
AtariGeezer Posted February 27, 2015 Share Posted February 27, 2015 Looks ugly in there... 20150226_155026.jpg 20150226_180428.jpg While you have that open, can you confirm that this one uses a 7805 regulator or the 2SD613 transistor? Quote Link to comment Share on other sites More sharing options...
ACML Posted February 27, 2015 Share Posted February 27, 2015 Looks ugly in there... 20150226_155026.jpg 20150226_180428.jpg That's the exact same way I open up my bad PSU's. Good o'le Dremel and cutting wheel. Quote Link to comment Share on other sites More sharing options...
+Larry Posted February 27, 2015 Share Posted February 27, 2015 Nice job! Now you have one of those "repairable power supplies!" A couple of caps and dabs of hot melt and a nice strip of electrical tape and she'll be good as new. -Larry Quote Link to comment Share on other sites More sharing options...
atari8warez Posted February 28, 2015 Author Share Posted February 28, 2015 (edited) Yeah they'll be repairable from now on, that makes 4 repairables so far. 2 x C017845 and 2 x C061982. Gotta replenish my hot glue stick stock Edited February 28, 2015 by atari8warez Quote Link to comment Share on other sites More sharing options...
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