On Jun 26, 2010, at 5:36 PM, JOHN CARMONNE wrote: > > On Jun 26, 2010, at 5:23 PM, Jim Scott wrote: > >>> >>> I don't have another machine to test the display in so I'll have to put in >>> the new display and I guess kinda hope it's OK, can the display work awhile >>> and then crap out due to a capacitor problem? Also can the Apple ASD pickup >>> this defect? >> >> Both ASD (in OS mode) and Apple Hardware Test (should be on the install DVD) >> are pretty good about catching problems with the video circuitry. However, I >> just processed an iMac G5 17" ALS which passed both ASD and AHT tests (4 in >> all) without an error, yet sports one popped/leaking capacitor on the logic >> board and throws occasional artifacts on the LCD. It also refuses to boot to >> the desktop and freezes right at the transition from the grey screen to the >> blue screen. Yet it will boot to the desktop in Safe Mode, which has lower >> demands on the video circuitry. It's sitting on a shelf awaiting a new batch >> of capacitors. FWIW, this iMac also chimes on startup, which means it passes >> POST. So it's worth replacing the 29 caps on the logic board to save it (I >> hope). >> >> Jim > I haven't seen any of these caps, are they big enough for a 65 year old to > see? I can solder OK if I can see the joint site clearly, Really 29 of them? > I have a TiBook board that I know the burned caps but I can't see that small > to fix it plus it's a 400 MHz so who cares? The machine in question is > running a 23" HP monitor I put for the kids about 8 mos ago and it works > great so is that an indication the boards are OK?
Yep, the capacitors are big enough for even a 70-year-old to see. :^) Yep, there are as many as 29 caps on an iMac G5 logic board up through the ALS model. Go here to learn more: <http://jimwarholic.com/2008/07/how-to-repair-apple-imac-g5.php>. Jim -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
