I think there is a short somewhere in my K1 Max
Okay, so I was in the middle of a print, and all of a sudden the printer just turned off, and the light at the top was flickering on and off very dimly. The screen was black and nothing was lighting up and no fans running. I went down to the mother board and starting testing voltages. Voltage into the power supply was as expected, and power out was 24V as expected. There was a mild clicking noise and the blue LED was flickering at the same tempo as the top lights and the clicking noise. I figured, there must be something shorting and drawing too much current. I started unplugging things one by one to see what may be shorting, and got to the 232 connector, and finally a successful boot. I checked continuity of the red and black wire and…. beeeeeeep. This connector goes up to the head of the printer, so naturally I went and investigated there. I unplugged the connector in the picture, and checked continuity of the red and black on the wire harness side, no continuity. Then I checked continuity on the pins of the red and black on the circuit board. beeeeeeeep. The pins of the white and green say rx and tx, so I reasoned out it being 3 phase where green is ground rather than the black. My question is, did I find a short, or is that supposed to have continuity for some reason? I am hitting a dead end of figuring out what is causing what I believe to be a short that I believe to be causing the problem.
TLDR: My K1 Max won’t turn on, I think there is a short, and I need help trouble shooting. Read more above for details.
