Question charger wire colors

Apr 7, 2019
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I have two Dell chargers a good one with a bad plug and a bad one with a good plug. The bad adapter has red white and black the other has blue white and black. The red wire is marked in the adapter as v+. How do I connect the wires?
 
https://reports.compassreports.co.uk/images/dell.jpg
http://5bb.wapster.co/dell-laptop-power-supply-plug-wiring-diagram.html
View: https://www.youtube.com/watch?v=yr6-Z5njkT8


be sure these symbols are matching on both chargers:
https://cdn.sparkfun.com/assets/2/f/6/e/0/5113f704ce395ffc7d000000.png

Please post the exact model number of these chargers.


black is ground for sure and would be the same as the other one. Most likely on the outer contact of the plug

the blue and white charger:
blue should be "sense" and white should be "power +"

the red and white charger:
not really sure, haven´t found it yet, but should be equivalent to the solder positions of both plugs.

To be 100% sure, you should use a multi-meter.
 
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