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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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part II: pc power supply failure
Thanks kindly for all of the replies to my previous question. I've read
twice through each reply - some will take another run-through tomorrow to really absorb, since I do want to understand it all completely But, I just did an experiment which tells me that the PS is probably not the problem. I borrowed a Compaq and pulled its working ATX PS. The resulting behavior was the same - power on for a moment only. Does this pretty much say that the PS is not the problem here? What should be my next step in diagnosis? From the reply by w_tom1, it seems I must check all the pins. Tom says to check for shorts - but I have only a 9v analog powered multimeter, so I'd think I can't use the ohm meter, except on 12v circuits, yes? Or do I use the voltmeter and look for what pins stay mostly flat on voltage and which pins might spike? Or does the analog meter (an old Radio Shack one) respond too slowly to tell me anything? Thanks again for all replies. |
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