Hello members. I had 7 bad caps on the power supply for my iMac G5 1.6 Ghz 17 inch which I had a local electronics guy replace. I bought nichicon low impedance radial aluminum electrolytic capacitors from Mouser Electronics. All ratings were the same as those that came off the PSU although some of the physical sizes were slightly different. I brought it home, popped it in yesterday and good to go. Until this morning. I got a burning smell and when I opened up the PSU (which was very hot), the leads of every single new capacitor were brown and melty on the underside of the board. In addition, the coating/paint on a circular component with a wire running around it had turned black and cracked. There is also evidence of some overheating melting on one other component on a different part of the board.
Any insight as to what happened here? All of the new capacitors going bad make me think I bought the wrong type of capacitors or that the guy installed them incorrectly. Other people have had incidences of other components being bad, but no cases described all the new capacitors burning up as a result of another component being bad. Thanks for any advice.
-Nate
Any insight as to what happened here? All of the new capacitors going bad make me think I bought the wrong type of capacitors or that the guy installed them incorrectly. Other people have had incidences of other components being bad, but no cases described all the new capacitors burning up as a result of another component being bad. Thanks for any advice.
-Nate
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