i have a laptop Dell Latitude D600 the battery is already dead and when i put the power adaptor on the Laptop the power led indicator of the power adaptor will light off.So i presume that the laptop is already shorted ,its a power supply problem ,the power supply is built in the motherboard.I want to try to fixed it so what specific parts on the motherboard that need to be replaced . Thank you very much and God bless you
There aren't power supplies on notebook motherboards. The power supply is the AC/DC adapter you plug in.
Anyway, you have some kind of short, obviously, as you stated. Take the board out of the case and try to boot it up without. If it works fine, you have a short between the board and the case - else, you have a damaged component on the motherboard, most likely the power jack itself.