definitely check the power supply voltages first. it could be the power supply is failing, in which case the fix is a pain, you basically replace all the electrolytic caps in the power supply. of course working on the power supply has a few hazards as well, it has large input capacitors you need to short, and i'd definitely suggest a resistor in series on those to avoid damage, they store significant energy at about 200v. the last se/30 power supply i tried to fix was a no go, and i also replaced all of the rectifiers, but if it's working for a while and then shutting down it's probably not too far gone and new caps would probably fix it. definitely check the +5 volt output and +12v output. the easiest way to do that is usually to put a "Y" cable on the hard drive and probe it there.
dan_A wrote: ----------- > -- > To all who responded > > Thank you all for your input on this, especially Mark Ginn for your > detailed clarification. One of the problems on the SE/30 that I'm > going to try to fix is a checkerboard display and an "automatic" > shutdown and restart cycle. So if I have to dig down in this, and I > never have in a compact before, I will discharge myself and the CRT. ------------- -- "Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing." - Helen Keller, American Blind/Deaf Author & Lecturer... -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> The FAQ: <http://macfaq.org/> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
