19.5v

Forum discussion tagged with 19.5v.
  1. M

    4pin DC power jack on viao diagram and electronics learning.

    I just got my first voltmeter and i have a laptop i would like to learn how to use my voltmeter and fix something with it. I have an old sony vaio sve15115fxe motherboard: if you look at the bottom in the middle is a white 4 pin( 2 red on bottom from that orientation then 2 black) DC jack...