I would say thats a big problem. Have you ever worked on a laptop before?. A DC jack is a big job and you can really screw up alot just in tearing a laptop apart.
Well, now this is a new one for me. I didnt know you could just randomly put in a different jack and have that actually change the voltage going into the laptop. Can you give me an example of this ever happening before ?
Have you ever replaced a power jack in a laptop ? Do you know what a DC power jack is ?
i had the same thing happen to me and the pc stopped working this is what my job looked like if yours is anything the same we maybe have the same problem.
Make sure everything is properly seated. If you removed the cpu, check its properly seated and the fan is connected. Also check ram is properly seated. By any chance did you put a screw in the wrong place and maybe its touching the board and possibly shorting it out. Double check the ac adapter and double check the dc power jack, maybe its loose.
How many dc jack repairs have you done in your past? If this is your first one, there's a high possibility something was damaged. Even a slight scrape of a trace can cause problems!!
thank you all for the respond, I have change power jacks before, and no the computer was not turning on, the power jack was broken, I think it is has a short in the mother board, I can't spend more time on it, time is money, thank you all
That's probably a bit harsh. Diagnosing a board to component level can be extremely time consuming and is, IMO, mostly outside of our remit. Our customers pay us to do a cost effective job. My spending 2 hours diagnosing a board only to find that it's not repairable OR that it is but it's gonna take another two hours to fix it, is not (at my rates anyway) cost effective.
In the above scenario, ACGI, neither you nor I have a friggin' clue what happened. Why? Because the OP didn't say. If he wants help he should certainly offer more information on what he had done to troubleshoot. But drawing conclusions based on what he's actually written is just silly. There isn't enough info. I mean he says "I think it is has a short in the mother board". That could be just a guess. It could be based on three similar machines he's seen this week or it could be based on some actual testing. But there isn't enough info for you or I to even guess.
Dude, you're a massive contributor to this community. Don't let your (entirely justified) frustrations with the way things are in the industry right now cloud your judgement.