Like these? http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.XASUS+power+board+NS53V&_nkw=ASUS+power+board+NS53V&_sacat=0
Yes, that’s it. No soldering. The jack is square even though it looks flat in that pic. The board Change takes a few hours. I refused to do it again and bought a new laptop. We held the cord like you are doing now just to get the data off.