Thats one of the issue im having with 80% of my boards -- due to 20 years of old capacitors. I'm gathering parts now to rebuild mine. I have two systems and a handful of boards. Is yours backlit or non-backlit?
On Mon, Aug 3, 2009 at 6:12 PM, platnicat <[email protected]> wrote: > > Thanks Britt! My board isn't leaking at all, your PMU reset worked > great! But... Now I've got another problem. My 40MB internal HDD > (40SC) and previously dead 1.44/800K Floppy drive are both gone. A > working mac... with no boot media! What Now? The HDD makes a noise > that sounds like *high pitched squeal* click, *high pitched squeal* > click, *high pitched squeal* click, etc. > > On Aug 3, 3:24 pm, Britt Dodd <[email protected]> wrote: > > Leaky caps leak conductive corrosive fluid on traces, creating > alternative > > 'paths' for the energy to flow. I have 4 or 5 of these boards with a wide > > variety of issues, including same/similiar error messages. Doing what the > > previous gentleman said, or holding in both the reset and programbuttons > for > > 60 sec (closer to 30 sec I'd say) seems to work as well. The only > sure-fire > > way to correct these issues is capacitor replacement, which I have been > > doing on my boards for certain individuals. I've compiled detailed specs > of > > these logic boards with plenty of documentation. > > > > > > > > On Mon, Aug 3, 2009 at 4:05 PM, Clark Martin <[email protected]> wrote: > > > > > platnicat wrote: > > > > I have a first gen Mac Portable (non backlit) with power problems. > > > > When I got it at a garage sale for $1 (a great find), its battery was > > > > dead and gone. I performed the 9V adapter hack ( > http://lowendmac.com/ > > > > pb/macintosh-portable.html) and it worked for awhile. Then, after > > > > about a week, I got the sad mac upon bootup with code: 00000014 over > > > > 0000CD38. I looked in the apple "sad mac error codes" reference and > it > > > > told me that that code meant that "the power manager failed to turn > on > > > > power to all parts of the system board" and "the power manager failed > > > > to start the initial handshake". From this I deduced that the adapter > > > > had been damaged, as it was very hot, and I performed another > > > > modification to replace the original battery with a new 6V, 4.5Ah SLA > > > > Battery. Now, however, it won't turn on at all. > > > > > I have a general rule for all PMU related problems, remove the battery, > > > unplug the power adapter (unplug the 9V adapter gizmo too), hit the > > > power button then reconnect the power adapter and battery and hit the > > > power button again. > > > > > This should drain all power out of any caps and do a full reset of the > PMU. > > > > > -- > > > Clark Martin > > > Redwood City, CA, USA > > > Macintosh / Internet Consulting > > > > > "I'm a designated driver on the Information Super Highway" > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
