A technician is repairing a laptop that has a problem with its monitor. The technician hooks up an external monitor to the laptop and the display works fine. The technician notices that when the…

A technician is repairing a laptop that has a problem with its monitor. The technician hooks up an external monitor to the laptop and the display works fine. The technician notices that when the laptop is turned on there is a faint dim light that can be seen on the internal monitor. Which of the following should be replaced to correct this problem?