Crap. Just sitting around playing some mp3s on my 9600/G4 the other night, the "new" Q950 sitting quietly doing nothing, when everyone heard a loud "POP" that sounded exactly like a .22 pistol going off indoors. That was instantly followed by that "electrical burning smell."
I almost immediately noticed that the power light on the Q950 was off. I couldn't get the machine to respond to any kind of start-up procedure. I have recently replaced the floppy drive with a 24x CD-ROM drive (and was trying to figure out a way to "bolt it down;" I had the side-panel off the machine. I have also replaced the stock HD with two of my own -- a 20-gig IBM and 180-gig IBM internal SCSI drives. A little probing with a multi-meter proves that the power supply has officially "gone south." I'm in shock. I know I got the computer free (I only paid the $16+ to have it shipped from West Virginia). I stoked up all the RAM slots until it was full. BTW, this thing DOES have a PPC upgrade because it's been running Mac OS 8.5. I've been searching high and low for a power supply replacement and am heartily discouraged by what these things cost!!! I think I'm even more disappointed that the HEFTIEST power supply Apple ever made pooped-out on me!!! I mean, this thing is supposed to be rated at a massive 300-watts!!! It even has extra power output ports on the bottom! I've checked all the sites for troubleshooting, too. I wanna fix this thing; not replace it, but I need to know WHERE to start looking for the problem. Is it probably in the main transformer, or should I give scrutinty to the rectifier??? I know how to discharge the transformer if it's still holding any kind of charge. I'm an old hand at discharging the so-called "throwback transformers in the Compact Macs. No biggie. I've built power supplies from scratch in the past using nothing more than an old schematic I got from Popular Electronics magazine from back in 1974. But I don't wanna use RADIO SHACK parts!!! I have PLENTY of experience with their components, and I find they're not always top-notch. I can get parts from other sources. I really don't want to lose this Q950 because of a bad power supply. I lost a highly-prized Q840-AV due to a thunderstorm last year, which prompted me to buy a couple of APS UPSes. Someone please help! Allen ----- -- Quadlist 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> Quadlist info: <http://lowendmac.com/lists/quadlist.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/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com