Computer monitors are not even bright light

I bought a second-hand market, the 19-inch display inside the store saw everything will be all right, home, that response did not fight, no bright lights, suspected of possession of fire insurance, insurance for the control or no reaction, no problem with the power cord , The socket is no problem, is the power cord to the socket on the kind of play, so he moved back to display for the same problem that I am not fighting response wonder, the display should be no problem, the power cord should be no problem, it is not a power play in the host A can?

Power cord is too loose? Own inspection, the host power supply plug in the back of the yard is As we are using the city's 220V power to check the jack is inserted row is not too loose ………..you can not say that clearly points ah, you have to see if your host does not have any Xinhua ah, the fruit of an electric power line, then usually your power outlet or, if no response, then you do not unless they view your socket! Even the power cord to display Natou plug to pull down slowly.Listen carefully there is no current sound, not the power cord is no power supply, so that does not work on display, looking for people who sell repair ah