Diagram Wire White Wire Black Wire Blue Wire Laptop Charger

Dell support resources.

Diagram wire white wire black wire blue wire laptop charger.

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. I m working on a project that has a laptop mounted to a moving platform. Old wire has blue black white new wire has green gray white. I just want to put a new electric plug on the end.

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. What are the and ground. When adding resisors the. Universal laptop charger for dell xps m1730 gaming laptop.

Laptop wont turn on after charger wires spark. While powered the charger found red wire 19vdc white wire 0vdc black wire in the center pin for feedback to the board. So i connected the white wire to the shilding wire and red wire to the core wire of the old 90w adapter s plug. I assume the hot wire is the yellow with the green stripe.

No power on only display red color light led. 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. Hi guys i have a bit of an odd question.

Are you saying that you cut open the cabling to see the colored wires. 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. How do i connect the wires. Which one to connect where.

How can i reduce the current to 0 5 amp. Normal electricians use black red and white for wiring. Currently the laptop charger is plugged into mains at a stationary position and the charger cable itself just 2 wires has been extended a few metres to the moving platform where the laptop can plug in. The most common failure is created by repeted bending of the wire in the same small area.