MB was just freshly re-capped. Entire machine works otherwise: able to start from a floppy and the CD drive works just fine.
On Wednesday, December 28, 2016 at 9:53:54 PM UTC-5, John-Robert La Porta wrote: > > Now I am having even more problems with my LC 520. First off, I thought > that my internal HD was going. When the machine would start up, the drive > would spin up for a few seconds, rev down and up again, and then finally > stop spinning all together. I thought this was the issue, so I swapped it > for another internal SCSI. This worked fine last night. This evening, while > working on it, the exact same thing happened with the new drive. Now I do > not think it is the drive. I will need real help from someone familiar with > the power supply.analog board, I think. This may indeed be the area where > the issue is, because when I adjust one of the what looks to be tiny > potentiometers labeled "PP7", the drive tries to spin up again, yet fails. > Probably there is some bad component in there, but I have no idea what to > look for. > > Anyone at all have any idea, or who I might turn to? > -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to vintage-macs@googlegroups.com To leave this group, send email to vintage-macs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to vintage-macs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
