I have to keep shutting it off and on several times in order for it to correct itself. I think when I orginally downloaded the drivers for the monitor a component was missing which may be the reason for the darkening?
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Step 1: Attach LCD screen to another known-working computer (keep in mind to plug into a reliable powerstrip). Check to see if the process can be repeated. If not, then check your computer settings (Power management, etc.). If the issue can be duplicated, then..you, my friend, are experiencing an inverter failure. OK. Moving on. Buy and inverter and replace it. Not a good option for you? Might as well get a new unit. You missed several Black Friday deals but hey, some are still on sale tomorrow.
Either the power supply is going bad (power light will be orange or off when it goes dark) or the screen itself has the problem (inverter?). If the power button stays green but the screen goes dark, that'll be the problem.
THERE MUST BE A PROBLEM WITH THE VIDEO PROCESSING CIRCUIT LOCATED AT A PCB CIRCUIT ATTACHED AT CRT BASE. THERE MUST BE SOME DRY SOLDER OR A FAULTY BASE CONNECTOR WHICH CONNECTS THIS CIRCUIT TO CRT.
YOU CAN ALSO TAKE A TRY JUST AFTER PRESSING THIS CIRCUIT FIRMLY TOWARDS CRT BASE.
It can be something as simple as a faulty contact switch not releasing correctly.
Try this in order and post back the results.
Unplug the monitor from the wall for 10 minutes. This can help correct issues that can be inside the control circuit of the monitor. It is a fine line between something being pressed and not being pressed to an electrical device..sometimes they just misunderstand the signals.
Tap the button that activates the menu several times. Then tap between that button and the next button on the bezel. Do that on both sides to help release the button if it's stuck
If those fail, then drop it to your local tech and get them to replace the switch. This should not cost alot to have corrected.
A fuzzy display is not likely to by caused by programs on your computer. Is this an LCD flat panel monitor or a regular CRT monitor?? If it's a CRT, the problem could be with the high-voltage power supply, which would need to be diagnosed by an experienced computer or electronics technician.
Check to see if there is a small focus knob on the back. If so try turning it back and forth three or four times to "clean" it....then adjust for correct focus.
Symptoms like this can also be caused by accumulated dust inside the monitor.