i have caps coming, i guess i will replace them and see what happens :) also i am going to install a fan, these things get way to hot. sorry steve jobs.
On May 27, 2013, at 5:32 AM, Keith Jamison wrote: > I can't help you directly as I am not looking at this power supply, however, > have you checked to make sure that none of the capacitors have gone bad? you > may need a magnifying glass to see any cracks in some capacitors. Given the > age of this device, bad caps is always a problem. Also check the > 'electrolytic' caps to make sure they are not bulging. > > I only mention it because I had to recap the analog board of my Mac Plus. > > Best wishes, > > Keith > ------ > Keith Jamison > > From: Notgoing Totellyou <[email protected]> > To: [email protected] > Sent: Sunday, 19 May 2013, 20:55 > Subject: LISA2 1.8a Power supply question > > Hello there i have this LISA2 PSU here, > > What its doing is blowing the fuse, > install a new fuse plug it in, it blows again, > > I am assuming there is a short, i checked the bridge rectifier, the 4 diodes > check out good with the VOM. > Anyone else had these issues with the LISA 2 power supply, maybe a common > issue before i spend half the day probing around > with the VOM. > > Thank You much, as always. > Charles > > -- > -- > ----- > 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 [email protected] > To leave this group, send email to [email protected] > 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 [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > -- > -- > ----- > 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 [email protected] > To leave this group, send email to [email protected] > 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 [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- ----- 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 [email protected] To leave this group, send email to [email protected] 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 [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
