If the monitor was dropped, most likely you damaged the internal components that provide the picture, whether LCD or CRT. Try connecting it to another computer. If this doesn't work, check the monitor's display settings or operating system display settings for contrast or brightness. NEVER open up the monitor, because there is a high voltage capacitor that stores voltage even when the monitor is off and could kill you if it discharges.
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The power light blinks green. The screen is completely black.
Tighten all connections, nothing.
Hooked up another monitor, it worked.
Monitor goes blank after three seconds. Had it for about 1.5 years and no problem till now. Can't do anything to fix it as no screen seen to make adjustments. Still has power.
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