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Top Student
Posts: 5
Member Since: ‎11-25-2009
Message 1 of 6 (5,443 Views)

EN488AA docking station - not charging

[ Edited ]

Hi all, this is my first post on this forum (i dont work for HP) so be nice :smileyhappy:

 

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).

docking

Message Edited by Bulldog_Cymru on 11-25-2009 03:50 PM
Message Edited by Bulldog_Cymru on 11-25-2009 03:53 PM
Student
Posts: 1
Member Since: ‎01-31-2011
Message 2 of 6 (4,211 Views)

Re: EN488AA docking station - not charging

That sure was the trick! Tnx!

Honor Student
Posts: 3
Member Since: ‎02-10-2013
Message 3 of 6 (1,362 Views)

Re: EN488AA docking station - not charging

Hi, just seen your solution. Can you let me know exactly which two bits of solder need to be resoldered please? Very much appreciated.

 

 

Top Student
Posts: 5
Member Since: ‎11-25-2009
Message 4 of 6 (1,341 Views)

Re: EN488AA docking station - not charging

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.

Student
Posts: 1
Member Since: ‎12-28-2014
Message 5 of 6 (301 Views)

Re: EN488AA docking station - not charging

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?

doug

Top Student
Posts: 5
Member Since: ‎11-25-2009
Message 6 of 6 (261 Views)

Re: EN488AA docking station - not charging

Sorry Doug I have only done a couple of these and the blown track was the problem each time, and I have not had any other problems.

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