akn9162@usl.edu (Nayak Anup K) (06/11/91)
Hi Netters, I have recently acquired a 286 compatible without any doccumentation whatsoever. The brand is 'Miata'. While installing, it was powered on by mistake with the voltage selector at 230v position. The power supply has gone dead and a friend estimated that it might take about $40 to $50 worth of components to repair it. Can someone suggest if it would be better to try to repair it or go for a new power supply. Recently, someone posted that a PS may be available for about $40. The power supply in my PC is a 'Senstron' make. If someone is familiar with any sources for the said brand of PC or power supply, please mail me a list.I have checked some mail order sources from mags, but I can't be sure if the power supply provided by them will fit my PC (at least electrically). I will apreciate your suggestions. ----Anup K Nayak email--- akn9162@usl.edu
josephc@nntp-server.caltech.edu (Joseph Chiu) (06/12/91)
akn9162@usl.edu (Nayak Anup K) writes: >Hi Netters, > I have recently acquired a 286 compatible without any >doccumentation whatsoever. The brand is 'Miata'. While installing, >it was powered on by mistake with the voltage selector at 230v position. One is inclined to ask why it was in the 230V position in the first place... >The power supply has gone dead and a friend estimated that it might >take about $40 to $50 worth of components to repair it. Can someone >suggest if it would be better to try to repair it or go for a new >power supply. Recently, someone posted that a PS may be available for >about $40. The power supply in my PC is a 'Senstron' make. If someone is >familiar with any sources for the said brand of PC or power supply, >please mail me a list.I have checked some mail order sources from mags, but I >can't be sure if the power supply provided by them will fit my PC (at >least electrically). I will apreciate your suggestions. NEVER NEVER NEVER repair those switching power supplies. It is not worth it. For about $80 dollars, you can get a real good power supply. And the industry is pretty much standardized as far as power supplies go. There's the PC/XT sized supplies, and there are the full-size AT sized supplies. In either situation, just quoting the dimension is enough to figure which is which (the AT one's are bigger). And you can certainly find the supplies for much cheaper by going through mail-order houses. As for 'electrical compatibility': every motherboard I have come across (at least 'clone' makers, anyways) uses the same power connectors, and the voltages are the same. That's one of the reason why the IBM + clone market is so popular. Everything in huge abundance, and it's cheap. >----Anup K Nayak >email--- akn9162@usl.edu -- Joseph Chiu, Dept. of Computer Science, Caltech | Rrr Redundant Tautology System 1-57 Fleming House, Caltech, Pasadena, CA 91126 | Ttt Triplicate Archival Backup Tel/Fax:(818) 585-0393 josephc@coil.caltech.edu | Sss RTS TAB, Model RTS-333-TAB
hdrw@ibmpcug.co.uk (Howard Winter) (06/12/91)
[Power supply dead after being connected when switched to 230V] It seems unlikely that it would fail when set to too _high_ a voltage - I would have expected it the other way round, but not as you describe. Unless the design is extremely strange, I think it ought to be OK. Perhaps it failed for some other reason ? I would agree with the posts that said to replace the whole thing, but I would change the fuses ONCE just in case, if still no good, then throw it away. I _have_ seen a fuse blow because it was tired, but more than once indicates a fault. Good luck with the fix. Howard. Disclaimers apply - my opinion, not absolute fact, and all that. -- Automatic Disclaimer: The views expressed above are those of the author alone and may not represent the views of the IBM PC User Group. -- hdrw@ibmpcug.Co.UK Howard Winter 0W21' 51N43'
mstr@vipunen.hut.fi (Markus Strand) (06/12/91)
In article <1991Jun11.200705.6733@nntp-server.caltech.edu> josephc@nntp-server.caltech.edu (Joseph Chiu) writes: >As for 'electrical compatibility': every motherboard >I have come across (at least 'clone' makers, anyways) uses the same power >connectors, and the voltages are the same. Some PC clones have the NC pin which is +5V on AT:s conected to ground. You have to pull out one cord if you connect a AT power supply to one of these PC:s. Sperry also made some PC:s with their own conectors. Markus Strand
gale@virtech.uucp (Gale A. Botwick) (06/14/91)
akn9162@usl.edu (Nayak Anup K) writes: >Hi Netters, > I have recently acquired a 286 compatible without any >doccumentation whatsoever. The brand is 'Miata'. While installing, >it was powered on by mistake with the voltage selector at 230v position. >The power supply has gone dead and a friend estimated that it might >take about $40 to $50 worth of components to repair it. Can someone >suggest if it would be better to try to repair it or go for a new >power supply. Recently, someone posted that a PS may be available for >about $40. The power supply in my PC is a 'Senstron' make. If someone is >familiar with any sources for the said brand of PC or power supply, >please mail me a list.I have checked some mail order sources from mags, but I >can't be sure if the power supply provided by them will fit my PC (at >least electrically). I will apreciate your suggestions. >----Anup K Nayak >email--- akn9162@usl.edu Don't be too concerned with replacing the power supply with the same brand. Measure it and note if there is an on/off switch on it or not. If it's like most power supplies on ATs, it can be replaced easily. It's not worth fixing. I would recommend the Seventeam 200W power supply. Electrically, they are rather standard with a set number of connectors... If you need a source for purchasing a good power supply, I can provide you with one and/or get a price quote for you. I am a reseller and can usually get a better price than the average buyer. -- Gale A. Botwick Software Engineering Resources, Inc. uunet!virtech!gale (703)830-5034