Casio VX-4 Repair 2 - Extreme PCB repair of battery leak damage. Can we save this Pokécon?

About this video

A second Casio VX-4 Pokécon has a keyboard circuit board badly eaten by leaked battery residue, and the video works through a Pace Cir-Kit repair and a new battery contact spring.

Good to know: Corrosive residue, and soldering brings burns and fumes. Follows an earlier episode and is sponsored by PCBWay.

Why watch it

Unit one was fixed in the earlier episode, which is the place to begin. Unit two's keyboard board was so badly corroded that it was not clear at first whether it could be saved.