At 04:00 PM -0800 01/21/2003, Gene Wieber wrote: >RasterOps SuperScan Mc 21 that flickers (but not on a permanent >basis). Sometimes the screen is perfect for a week or two, and then >it starts flickering/shaking (generally in the lower right corner). >This might last for a day or two, and then the monitor runs >perfectly again. What could account for such erratic behavior? Is >the monitor conking out? It's been doing this for over a year.
Make sure the monitor is degaussed. Some monitors do this automatically when powered on, but some have a manual button in the back. One (easily fixable) possibility is that there is some dust or crud interfereing with the flyback's magnetic fields. If you're comfortable around hardware guts and high voltages, try cleaning it. But please please please be very very careful. Between the capacitors and flyback, there's enough stored juice inside a monitor to really hurt... Unplug it - and leave it sit for an hour or two to discharge a bit. Open it up, and hit it with some canned air spray or chemical "tuner cleaner" spray (Radio Shack sells it). If degausing or cleaning doesn't fix it, then the monitor is slowly dying. Most likely the flyback is disintegrating. Not a repair I recommend - expensive and rarely work well... - Dan. -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> 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/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
