I think the problem is not with the monitor, the problem is the charger that is connected to it. It may be damaged or broken inside.
suggestions: I think you if you have guarantee or warranty you should go to the dealer that sold it to you and ask him to test the charger. If they cannot fix any products go to an electric store which fixes computers and stuff and ask them to test the charger.
If they say its faulty just buy a new charger and see if it works, if it still doesnt go to a repair shop and fix it.(Or you can get it free if you have guarantee with the product).
Note: i think opening the monitor up was not a useful idea and can damage the whole screen if a wire was moved and electric shocks can occur.
ICT NERD
March 2009