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It doesnt sound like a windows problem. A simple test for this is to unplug the vga or hdmi cable from the monitor then turn it on if it has power it should say no signal. Also try either another power cable to the monitor or change the fuse. Hope this helps.
This is typical when there is no communication with video card. Test on another PC. Re-seat video card on PC. Use VGA cable instead of HDMI or DVI. Make sure monitor is correct mode. Again VGA, DVI, or HDMI, depending on cable used.
If your monitor shows a yellow light and it won't turn green, the problem most likely lies with the computer. If your computer is not sending a signal to the monitor, then you have a computer problem. One way to test this is to turn the monitor off and the computer off, too. Turn the monitor on and if it is working, it should display a message telling you that there is no signal. If you see that message, you can assume the monitor is working. If you do see it, now turn on the computer and see if the message changes. If you turn the monitor on and you get no message, you can assume the problem lies with the monitor itself. If you have access to another monitor, hook that one up to test the computer output.
You can now either get the monitor fixed or the computer fixed, depending on which one is bad.
try unplugging your t.v for 10-20 seconds. plug it back in. if your power light continues to flash your t.v is the issue. you should be able to google your issue or check your owners manual about the problem. unplugging the t.v is the last ditch effort. Good Luck!
Cycling of the power LED (about once per second) is typical of a switchmode PSU shutting down and trying to restart. Often this is accompanied by a tick each time, from the main switcher transformer.
Assuming you can open the monitor up (with the power OFF of course) check all the capacitors in the PSU for signs of leakage or bulging. Ideally you would check them with an ESR meter, but they are usually visibly failed when the monitor acts like this.
Replace any defective caps found and try it again while you have the case off, keeping your fingers well out of the way.
it is going into sleep mode, good luck with this.... i am currently asking how to get my hard drive to quite putting my monitor into sleep mode.
although it hasn't worked for me because my screen stays black, one of the options given to me is to try to start in safe mode and then adjust your settings to "never" on the energy/sleep/hibernate mode
some one else suggested that i remove and reseat the video card
It's turns blue to power safe mode (yellow) it's prevent futher damaged to your monitor. It's seems you got a busted backlight inverter. Need to replaced a new one...Since you only got it for a few months, send it back to Acer for a replacement of a new backlight inverter... Have a nice day!