Anything vintage can go at anytime and should not seem strange when it does.
On Jul 2, 2017 9:55 AM, "'Marcio Luis Teixeira' via Vintage Macs" < [email protected]> wrote: > > Will, > > I agree. It seems highly unlikely that a PCMCIA card would destroy the > power supply, it also seems odd that it would die right after I had > successfully installed Mac OS on the card. It could have been a strange > coincidence, but I've tried resetting the PMU serveral times and the > machine seems dead as a doornail. > > > Jason, > > Yesterday I found a service manual and did a complete tear down of the > 3400c, since I had heard that sometime the power module comes loose. There > are no signs of damage anywhere and the backup battery is still good. I > even tried booting with it disconnected. No go. > > However, in doing my tear down I did see the solder pads for the power > jack on the MB and I tested them using my voltimeter. There were three > pads. I was getting a reading of 0V between two of the pads, and a reading > of about 3V on the other which seems peculiar. Either the power adapter > does some sort of negotiation with the PMU prior to delivering full > voltage, or it is delivering a severe under-voltage. > > I may consider getting a new power brick in the off chance mine is bad. > > -- Marcio > > > > > Jason Johnson <[email protected]>: Jul 01 05:03PM > > the 3400 has a pram battery that is mounted over the left side speaker. > when it leaks the acid rots the screen, keyboard and motherboard connectors > under it. You may want to take it apart and see if you can clean and > salvage it. Out of 3 I have had only 1 I could save (not mine, bought off > eBay). > > ________________________________ > From: [email protected] <[email protected]> on > behalf of William Bowles <[email protected]> > Sent: Saturday, July 1, 2017 8:28:35 AM > To: [email protected] > Subject: Re: PowerBook 3400c Power Supply > > I would think that the psu is still good and a compact flash card doesn't > draw enough power to fry the psu as it is basically just a big ram card > with no moving parts what I would do is reset the pmu after removing the > compact flash card reinstall the cd rom then restart the book normally and > see if you get any joy let me know. > > > -- > -- > ----- > 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 vintage-macs+unsubscribe@ > 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 [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- ----- 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/d/optout.
