Hp laptop charger repair manual
This guide will explain how to repair a failed or loose DC power jack on a laptop computer yourself. Disclaimer: I’ve made these instructions only for people experienced with soldering and repairing computers. If you don’t feel comfortable doing this job, please do not open the laptop or you can permanently damage your computer. Take your laptop to a professional repair shop instead. Use this repair guide at your own risk. For this repair you’ll need the following tools. 1. Soldering iron or soldering station. I use Weller WES51 soldering station and for this job I set temperature to about 800-850° F. 2. I use high-tech rosin core silver-bearing solder from Radioshack with diameter 0.022″ ( Catalog : 64-013 ). I think standard rosin core solder will work just fine. 3. Desoldering pump for removing solder around component leads. I use Edsyn Soldapullt pump, model DS 017. 4. 99% isopropyl alcohol and tooth brush for cleaning the motherboard from flux. 5. A new DC power jack. Laptop DC power jack repair guide. As you see on the following picture, the solder drop on the positive terminal looks different than on other three contacts. That’s where the problem is. The positive pin is not making a good contact with the motherboard and because of that power to the laptop cuts off when I move the power plug inside the power jack. I’m going to desolder the power jack from the motherboard, clean contacts on both power jack and motherboard and then solder it back in place – this is the proper way fixing the power problem. Start desoldering process with adding some new fresh solder to all three contacts. This will make old solder more flowable, easier to remove. While heating one of the contacts, remove the solder from this contact using the desoldering pump. Repeat the same steps with all power jack contacts until you remove as much solder as possible. Grab the power jack and.
Order book for .95 or printable ebook for .95 Laptop Shopping Computer Repair The Laptop Repair Workbook Starting Your Own Computer Business Questions? Comments? Copyright 2010 by Morris Rosenthal All Rights Reserved Copyright 2010 by Morris Rosenthal - All Rights Reserved contact info The printable e Book version of The Laptop Repair Workbook is now available for download anywhere in the world. Your laptop goes dead and you don't understand why because it's plugged in. The very first thing you should look for is status LEDs. The transformer brick or power adapter usually has a status led on it to show that it's plugged into a good outlet and is functioning. If the laptop power adapter LED is not lit and the cord is firmly seated in both the transformer and the wall outlet, then the AC adapter is probably bad. But troubleshooting most power problems takes a little more effort. Fortunately, it's also common for the failure to be the power cord itself, as I've noted with some Toshiba models. Many HP and Compaq models use L connectors which are less prone to failure, and Sony and Dell cords seem more robust as well, but it's always a possibility. It seems to me I've seen L connectors on IBM Thinkpads as well. If the status LEDs on the laptop blink when you wiggle the power cord or if they can be kept on if you position the cord just right, the failure is either the power cord or the power connector inside the laptop. Of the two, you want the problem to be the power cord because it's much easier to fix. A power cord can look perfectly good (see above) but be broken inside, normally as result of letting it dangle off the back of the laptop when you work on your lap. The length of cable running from the power adapter to the laptop is shielded coaxial cable, with the inner conductor attached to the inner part of the barrel connector and the outer part serving as ground.