How to Repair or Fix a Dell LA90PS1-00 AC Adapter?

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Most people throw away damaged laptop chargers and spend a lot more money buying new ones not knowing that most charger problem can be easily fixed. It only takes patience, a cheap desoldering tool and a soldering iron. Here is a guide to help you fix your damaged Dell LA90PS1-00 AC Adapter: Required materials Solder, soldering iron, contact glue, plastic spatula, a flat screwdriver, box cutter and a desoldering iron. This guide assumes that the electronics of your charger are still working. The best way to know if they are is the LED light that turns on momentarily when the charger is connected to the power outlet It also assumes that the cable between the power outlet and the adapter is working. You can use a multimeter to test this. Procedure First, you will need to identify the damaged part of the cable. Open the case Using a flat screwdriver, carefully try to separate the two covers and after achieving a small opening, use the plastic spatula to avoid damaging the charger. You should be able to open it up. Now you can remove the Dell LA90PS1-00 charger from the metal case. Be careful not to damage it. Desoldering The end of the cable has two or three wires depending on the type of charger. Mark where each wire is soldered on the circuit board then disolder them. Stripping the cable Each conductor on the charger cables is wrapped around another; · Cut a chunk at the tip of the cable to ensure that all the defective cable is removed · Make a cut around the rubber insulation then remove the cover. · Now you can separate the positive cable from the negative conductor Reinstalling the strain relief grommet The strain relief grommet is a very important part of the cable; without it, the service life of the Dell LA90PS1-00 power supply is considerably reduced. · Use a box cutter to cut one side of the grommet and rub it around the good cable · Use contact glue to secure the cables in the grommet. Soldering Insert the two good cables through the circuit board of the charger. Ensure that each wire is on the right location. Connecting the cable wrongly or reversing polarity can be very dangerous to the laptop. Check, check again and recheck again the polarity and make sure that you have made correct connections Also, ensure that the cable filaments go down to the respective holes and there is no short circuit. Re assembling First, re install the metal sheets correctly then cover with the two plastic covers. Glue the covers firmly together. For more information about Dell adapter,please go to http://www.uklaptopbatteries.co.uk/