I have an HP laptop Pavillion N5475 that I have not been able to use for over a year. The power jack is defective; and the unit is out of warrant. I took the laptop apart, and remeove the circuit board that houses the jack and re-soldered the jack in place. Re-assembled and ... no good. I need to replace the jack, but do not know where to look or how to describe it / identify it. Can anyone help me identify the jack and help me acquire a new one. I can send a pic of the jack. I know it is a coaxial type but am unsure of the size "letter" and whether or not I can purchase a jack that will match? Please respond here and / or to snipped-for-privacy@dslextreme.com
FWIW I had to send my year-old Presario R3000T in for repair recently, as the power plug had decided to completely fail. Ever since purchasing the laptop, the plug has just spontaneously fallen out. This if course has destroyed the batteries, which I'll have to deal with next... But eventually it just stopped contacting completely. After fighting with the two springs inside the barrel of the plug, to no effect, I determined that it was the 6 springs inside the jack itself, which were supposed to be springs to hold the barrel, but had ceased to be springs, and ceased to make any kind of electrical contact.
They replaced the mainboard outright (another issue made that less insane than it otherwise would have been), and the new jack is far superior in that the plug doesn't fall out, and wonder of wonders it actually makes electrical contact. It's not visually different however, which makes me worried.
Sorry I can't help you with any details about repairing it yourself, other than to suggest that you go to Radio Shack and try out the DC plug medusa they have hanging on the wall (usually) to find the letter, then matching that with dimensions and going to Digikey to find a part. Worst case through you could probably dangle an inline jack outside the case, if you can't find a workable PCB-mount one. Just make sure the wires are of a low enough gauge in order to handle the current (check the brick, then google for "awg current capacity" to get the right wire size). If you don't, *very* bad things could happen to the power electronics.
How can you be sure it's the jack? Have you tried to solder the power wires directly behind the jack, where it arrives on the mainboard? And if yes, does the unit work like that? I'm asking because a bad contact on the jack is IMHO very unlikely. Usually, it's the DC to DC part that is dead. And that is another game to play with...
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.