Check the pram battery, it may be bad and that can cause all types of problems. d
On Nov 16, 2008, at 2:25 PM, DavidV wrote: > > Hi > > Just joined the group as I've been given a 1990 vintage LC. > > Unfortunately, it doesn't boot up and looks like a dead/faulty PSU. > The PSU, a TDK branded unit, just makes a quiet ticking ticking noise > and the measured voltages on the pins are way too low: > > Orange wire: 0.6V > Yellow wire: 0.7V > Blue wire: -1.2V > > (all voltages measured off-load) > > I was thinking that I could rig up a PC PSU to supply the correct > +12/+5/-5V supplies but wasn't sure of the correct connections. I > presume that the Blue should be the -5V but which out of the orange/ > yellow is the +12V and +5V? I see someone was asking something similar > a couple of years ago on this list but the question wasn't actually > answered as someone else could supply replacement PSUs. However, I'm > in the UK. Can anyone help? > > Thanks > > David > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to 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 [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/vintage-macs?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
