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11-25-2009 08:49 AM - edited 11-25-2009 08:53 AM
Hi all, this is my first post on this forum (i dont work for HP) so be nice
We have had a few docking stations (EN488AA) which have stopped charging the laptop's when they are docked. As an electronics engineer my interest was tweaked and I had to take a look.
The cause of the problem turned out to be a burnt out track on the pcb, which was easily repaired by soldering a small link between the 2 adjacent solder pads. See photo below.
If they are out of warranty its well worth letting someone handy with a soldering iron taking a look, the only tricky bit is getting the little connector plugs for the power switch and release button LED's in and out (you can do it with a pair of long tweezers).
02-11-2013 03:02 AM
Sorry but I posted this ages ago and can't exactly remember; but if you compare your PCB with the photo you will be able to see where the track has burnt out and where it needs to be replaced.
12-28-2014 11:28 AM
Thanks for your input on this charging problem. Your picture of the connection helps. My PCB has a fine wire connected to where you indicate a blown out connection. I still don't get a charge when I use the docking station. Did you find any other areas to look?