When I shut down computer the monitor is turned off by the monitor power button. now the button no longer works and if says on the screen "key code." I did move the monitor and wonder if I locked the monitor so how. I can't even get the function keys on the monitor to work.
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If you turn your monitor on and when its on you go into your computers settings. Where you can fix your monitor and fix the resolution and all that. There should be a thing there where you can put never shut off. You have it on 5 to 10 minutes to shut off. That will keep the monitor from turning off again. I did this with mine it kept shutting off to. Thanks for posting I hope this helps you. I am sorry I couldn't be more detailed. i have been up all night lol.
the problem is the power supply of your main board...you can replace the bulging/leak capacitors...to acces the power supply open the back cover of your tv..the power supply board is the pcboard which the mains supply is connected..you can also replace the whole power supply with a new one..resolder the board for its loose connections..
I suspect the power supply for the monitor. Try a power supply from a working monitor. If you have a used computer store nearby, take your power supply to them and try it on another monitor.
There is no need to turn off a monitor using its power switch. Monitors automatically go into standby mode when they are not receiving a signal. In standby mode they use less than one cent of electricity per day. If saving electricity is your goal, raise the temperature in your home by a degree and run the air conditioning less.
I had the same problem. In frustration after trying everything else as I couldn't shut the monitor off, I shut the computer down, unplugged the power to all, and left it until this morning (12 hours). Now it works, so it must reset itself. I am waiting for feedback from their support as well but imagine they will tell me the same, good luck.
One reason that this is happening could be that it is on Power saving mode. This happens when the LCD monitor detecs an incorrect timing then thats the time that the LCD goes blank and the power botton starts to blink.
what you need to do is to turn the computer off. Unplug cables attach to the LCD make sure it is also off, once done press the power botton for a couple of 30secs to a minute and then release. After doing so re-connect all the cables and make sure that both ends is tight and secure once everything is ok turn the computer on same with the monitor to check if it solves the problem.
Have you tried pluging in the monitor in to the laptop before even starting the computer or Putting the computer in to "Stand by" then pluging in the monitor and then bringing the laptop out of "Stand by" or yet when you do have the computer on with the monitor pluged in, try "Fn" and a button hat has like two screens on it with a small bar in between them? All these should work.
The inverter is the most common item to fail on a LCd monitor. Capacitors usally fail the most. Are the tops of any of them popped up. If you had any shorted transistors the fuse would probably be blown. Usally labeled F1. I would replace all the capacitors first and go from there. Capacitors are cheap.