KHOI1971 12VOLT Wall AC Adapter Power Cable Cord for The Singing Machine SML343P Karaoke Machine

hey there my name is steven today we're going to show you how to fix a karaoke machine my boys love this little karaoke machine and i can play cds in it and um singing it with a microphone but it does not turn on and um my boys noticed that when this power cord is wiggled sometimes it comes on so we're going to do a couple tests see if we can figure out what's going on so one of the first things i want to do is test the voltage that's coming out of this plug right here on the back of the power adapter it says 5.8 volts so i'm going to stick one end right into the tip and the other end i'm going to touch to this shell and i see 5.6 volts not exactly 5.8 but it's probably close enough for it to work so now i want to move this while trying to keep good contact on both the tip and the shield i'm going to wiggle this connector around just a little bit to see if i get any changes in the volta