Computer monitor does not shine

Yesterday, I opened the computer and then click a cleaning power after a bright display is not only a power indicator light is also voice-activated machines and no matter how unusual it is

should be out of your screen to detect whether the memory card or loose.you move your memory card and you pull down you try to re-plug! ! May be a loose card, you click play again, or it may be a good line did not play.Look at the display lights do not light? If you do not bright display problems.
Be able to hear the board through the voice of the self-test , “” The sound.If you do not.Re-inserted the card, memory pulled down by about Eraser.
So a few Now.Not again, CMOS discharge.
Will not do again, and repair.