<Probably won't help, actually - the whine is more likely a dying capacitor on the analogue board and/or the flyback transformer vibrating at very high frequency. The latter might be fixed by inserting a piece of nonconductive material into the loop of the flyback, but the former will require replacement of the failing part.>
Thanks Pickle, you saved me a whole lot of time. <The 580, incidentally, is unique among the colour AIOs and doesn't share parts with the earlier 5xx-series Macs.> Seems like I'm ALWAYS trying to mix apples and oranges and bananas. I have 2 unused LC 520's and the one high-pitched-screaming/whining 580 but they're not letting me switch parts around to make one useful one. : ( The 520's are both missing the cd caddy but I can't switch them out for a tray cd drive because the connections are flipped. Can't trade logic boards to give a 520 a 68040 upgrade. Can't even switch the hard drive (SCSI vs IDE). Laura -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> The FAQ: <http://macfaq.org/> 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/vintage.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
