Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!spool.mu.edu!uwm.edu!linac!att!pacbell.com!ames!dftsrv!oneel From: oneel@heawk1.gsfc.nasa.gov ( Bruce Oneel ) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Power Supply: Self Repair? Message-ID: Date: 10 Jun 91 13:12:04 GMT References: <91160.170739PBALG@CUNYVM.BITNET> Sender: news@dftsrv.gsfc.nasa.gov Organization: STX/GSFC Nasa Lines: 27 In-reply-to: PBALG@CUNYVM.BITNET's message of 9 Jun 91 21:07:39 GMT In article <91160.170739PBALG@CUNYVM.BITNET> PBALG@CUNYVM.BITNET writes: My friend has an ibm at compatible 286 Fountain. He has no power. I noticed in my pc that all seems to be within the power supply. Are there typically circuit breakers or fuses inside? Are there servicable relays? Any advice? If all else fails, any recommendations for replacement power supplies? The local compu-usa store sells power supplies for $40-$60. Switching power supplies are not to be played with. They are not joking when they tell you not to touch them on the warning labels. They don't have transformers to isolate you from the 120V mains so a mistake could fry you and/or your computer. $40 is cheeeeep given the options. bruce p.s. I assume that since you are asking this type of question you've never worked on these before. If you have, my apoligies. And yes, there probably is a fuse. Even so, it blew for a reason and for $40 the PS probably should be replaced. -- Bruce O'Neel oneel@heasfs.gsfc.nasa.gov NASA/GSFC/STX/Code 664