Proveador Universal on Josepha Dominguez across from Ley Express is a good place to start. Also there are more than a few computer fixit stores and the geeks there know how to make them I don't have any name for you but having been here as long as we have I know that things can be made
Electra AL-BA fixed my LCD tv and laptop in a couple days, they have plenty of spare parts to fix most stuff, they are off the south end of josefa, then about 5 blocks west. have to look at map for correct location.
Hi...
If you cannot find any here in town, can buy thru Amazon on line. The Radio Shack in Ajo takes all delivery for a buck a package. Then take a ride up or beg somebody to pick up for you after you tracked your package.
If you cannot locate the Radio Shack address on line, use K5 on Google for Ajo. It's all one big family business there.