--- chrWhen you try switching the computer on, does the power light turn orange, and then shut itself off entirely? If so it sounds like it could be a dead flyback transformer. A dead flyback can cause the crackling and arcing effect on the screen.
If the computer tries to turn on and shuts itself off again, that is because the flyback is preventing an electrical supply to the monitor. The rest of the iMac is fine. If you were to plug in an external monitor, the iMac would power up ok, if you were to replace the flyback transformer, the iMac would start up ok from its built-in monitor as I think that is not damaged as a result of this crackling. That's of course if this is the issue with your computer. I have a Bondi too, and though it is not suffering the same fate as yours, it is going that way, as occasionally the screen ticks when the computer has been on for an hour or so. Sometimes it can go many hours without the ticking screen, but I think the initial symptoms are there. Matt is <[EMAIL PROTECTED]> wrote: > > Not seeing how it could help, I zapped the PRAM as > routine check. > >When the computer came back on, there was a series > of sharp > >electrical cracking sounds and the screen > shimmered. > > I shut it off, blew some canned air through the > vents to > >clear unwanted dust and started it again. After one > or two more > >cracking noise, the computer went dead. > > It probably won't help, but disconnect all USB > devices and try turning on > the iMac again. > > Since you know the mouse was acting up, it is > possible one or more USB > devices went bad and are shorting the iMac. > > -chris > <http://www.mythtech.net> > > > -- > The iMac List is sponsored by > <http://lowendmac.com/> and... > > Small Dog Electronics http://www.smalldog.com | > Refurbished Drives | > - Epson Stylus Color 580 Printers - new at $69 | > & CDRWs on Sale! | > > Support Low End Mac > <http://lowendmac.com/lists/support.html> > > iMac List info: > <http://lowendmac.com/imac/list.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/imac-list%40mail.maclaunch.com/> > > > --------------------------------------------------------------- > iPod Accessories for Less > at 1-800-iPOD.COM > Fast Delivery, Low Price, Good Deal > www.1800ipod.com > --------------------------------------------------------------- > > Send instant messages to your online friends http://uk.messenger.yahoo.com -- The iMac List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | - Epson Stylus Color 580 Printers - new at $69 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> iMac List info: <http://lowendmac.com/imac/list.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/imac-list%40mail.maclaunch.com/> --------------------------------------------------------------- iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com ---------------------------------------------------------------
