Reparación UNI-T UT139C

Picked one by one from a mixed channel. Transcript check: Shows disassembly and cleaning repair process for a faulty multimeter's selector contacts.. Channel rule: Include physics experiment/measurement videos and electronics repair, battery-replacement or build videos that explain diagnosis, circuitry or technique; exclude packaging/unboxing, product showcases and anything without explanatory content.

A 14-minute video from jrtroglodita: “Reparación UNI-T UT139C”.

Video by jrtroglodita, played through YouTube's embedded player.