Disassembling pre-assembled JST Rectangular Plug PHR-4 (0.079")
Yes. Once you get the hang of it, it is very easy. Terminology: the plastic part is called a housing. The female pin in the plug is called a pin or crimp fitting. The crimp fitting stays in the housing because a raised area is unable to slip past a plastic tab in the housing. To remove, slip an exacto knife blade under the plastic tab on the outside of the housing while simultaneously pulling the un-needed wire out of the plastic housing. Do not pull forcefully. Once the raised metal piece passes the plastic tab, the wire with crimp fitting on end should pull out easily.