pault@hcx1.SSD.HARRIS.COM (10/03/88)
A short time ago, someone posted a note about replacing a small component in a blown z100 power supply. The note said that replacing the fuse was not enough; that some other component needs to be replaced as well. Unfortunately, I didn't save this off; and wouldn't you know, yesterday the fuse blew in my power supply. The local H/Z outlet wants $230 (and 10 days delay) for a new power supply. This is no bargain, as used, complete systems are going for as low as $5-600. Could the person who posted the power supply repair note please repost it? It would be greatly appreciated.
pmd@cbnews.ATT.COM (Paul Dubuc) (10/04/88)
In article <127700004@hcx1> pault@hcx1.SSD.HARRIS.COM writes: } }A short time ago, someone posted a note about replacing a small component }in a blown z100 power supply. The note said that replacing the fuse was }not enough; that some other component needs to be replaced as well. }Unfortunately, I didn't save this off; and wouldn't you know, yesterday }the fuse blew in my power supply. } }The local H/Z outlet wants $230 (and 10 days delay) for a new power supply. }This is no bargain, as used, complete systems are going for as low as $5-600. } }Could the person who posted the power supply repair note please repost it? }It would be greatly appreciated. You might be referring to me. I am in the exact situation that you are. I took my power suppy apart, replaced the fuse and it blew again. I haven't had much chance to look at it any further. In my query, I was making reference to Gern's very good article on the z100 power supply wherein it suggests that you take the PC boards out of the supply, check for bad solder joints and heat scoring on the leads (I haven't gotten this far yet). He also suggests some components that might be bad, but that's shooting in the dark for someone like me. I don't have the article online. Perhaps Gern will send it to you or repost it. If I don't find anything obviously wrong from looking at the boards, I don't know what to do. I'm not much for trouble shooting the components. I might break down and buy a new suppy from Zenith just to get a working computer again. If any one has a cheaper source for a new or rebuilt supply, I'd sure like to know it. -- Paul Dubuc | "When freedom destroys order, cbdkc1!pmd | the yearning for order will destroy freedom." | Eric Hoffer |