Ok so this happened yesterday also.
The monitor was turned off, but the PC left on. I went away for a few
hours and came back and the PC was still on but the monitor would not
turn back on.. and the power button was flashing green/orange.
Yesterday all i did was restart the computer, unplug the power from the
monitor and replug it back in annd it came good... but today it didnt
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Re: Monitor wont turn on, just green flashing light.
Double check that all yor connections are tight. Open your PC case (unplug it) and ensure that all your fans are clean. It appears that your problem is due to loose cable connections, but this may be a good time to do some computer spring cleaning.
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Since you have tried another monitor with your computer, then we can only assume that your LCD monitor had gone bad. If the light is green but you can't see anything on the screen, then most likely the backlight has gone bad. Unless you want to take the monitor apart, I would suggest buying a new monitor.
First--was it working? Did it suddenly stop? When you see the LG logo, then it goes away, does the power light turn from green to amber? Sounds like that doesn't happen. So--if you are getting a signal, you should see something. If there is no signal, then the power light should change from green to orange. With no lights at all, I suspect a faulty monitor.
Ive seen this on other monitors. Look for a 1 and 2. Some monitors do NOT auto detect a signal, and this one might not. Look for a way to set the monitor from Digital input to VGA input. Try that and see.
Have you tried it on another computer or tried a different monitor on that computer. It could be the video card. If it's not the video card it is the inverter board inside the LCD case. Go to this site for a diagram of how to open case and remove board. You can either order a reburbished board or send your in for repair.
as u told ur monitor is excellent only... it is in good condition no problem will be there ... may be there is problem with the operating system just try reinstalling it... ur problem will be solved...
Chances are a capacitor has blown. They normally make such lovely poping noises when they die.
What will of course now be happening is the voltage inside where that capacitor was will be unstable and it could very well completely fail in the near future.
I would reccomend you get it to a repair shop sooner rather then later for a cheap simple repair rather then an expensive monitor replacement.
while the monitor is still powered on, but with the LED flashing, unplug the monitor from the PC. press the power button, and the monitor should go off, now plug the pc back into the monitor. Turn the monitor back on and it should work.
Occasionally this will not work for me, but if I repeat it it normally works
Hope this helps - my problem is intermitant so it may be different to what u guys have
Assuming you've already checked your driver and system settings, tried a different monitor, and checked the cable and connector pins, this would almost certainly be a problem with the power or signal circuit board inside the monitor.