I m working on a project that has a laptop mounted to a moving platform.
Diagram wire white wire black wire blue wire laptop charger.
Universal laptop charger for dell xps m1730 gaming laptop.
Laptop charger wire color old wire has blue black white new wire has green gray white.
I have laptop charger caple with three wires black blue white i cut off the blue one and use the black and white to charge the laptop from 12v acid battery using boost converter 19 5v the problem is the current is too high 3 to 4 amps.
How do i connect the wires.
Dell support resources.
The red wire is marked in the adapter as v.
The problem with your answer is that i have bought a new computer i only need the charger for a short time to get the info off the old computer.
The most common failure is created by repeted bending of the wire in the same small area.
Why is this plug different.
Normal electricians use black red and white for wiring.
Which one to connect where.
So i connected the white wire to the shilding wire and red wire to the core wire of the old 90w adapter s plug.
While powered the charger found red wire 19vdc white wire 0vdc black wire in the center pin for feedback to the board.
I assume the hot wire is the yellow with the green stripe.
No power on only display red color light led.
What are the and ground.
The blue wire for information i dont know how to use it with the boost converter.
Hi guys i have a bit of an odd question.
Are you saying that you cut open the cabling to see the colored wires.
I just want to put a new electric plug on the end.
How can i reduce the current to 0 5 amp.
The bad adapter has red white and black the other has blue white and black.
If this is in reference to the many dell machines using the 3 pole 7 4mm barrel connector the 3rd wire goes to a 1 wire serial chip that the laptop reads to find out which wattage power adapter it is connected to so that it can limit its power dra.
Laptop wont turn on after charger wires spark.