The power button lights up orange/amber when u turn it on the power button changes colour but the screen won't turn on at all. You can hear the sound in the monitor (sounds like a relay switching contacts) any ideas
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Firstly - Is the cabling, mains and data cable, securely attached at both ends and the power turned on at the mains?
Secondly - If so when you press the monitor power button, does a light come on? (often orange coloured) If yes does this change colour when the computer starts its boot sequence? (often to green or blue)?
If no light can be obtained it is likely that the monitor is faulty.
If a light comes up on power up, but doesn't change colour during the computer boot sequence then it is more likely to be the graphics card that is faulty, or sometimes the computer PSU.
The easiest way to find out whether the computer or monitor is at fault is to replace the existing monitor with a monitor that is known to be in full working order, for example from another computer. (Or connecting your monitor to a computer that is known to be working)
Having isolated the faulty component it can be replaced and you should be up and running again.
Hope this is helpful, if so would you please register that with Fixya
There may be problem with your Monitor or VGA Card.
When you turn on computer after sometime the monitor light will be orange colour it mean there is no fault in monitor.
VGA Card is not sending signal on the monitor.
you should change your VGA Card slot
if the problem is still exist.
Replace the VGA card or have a local tech take a look at the VGA card.
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.
check screen light is it light green/yellow or is it orange in colour.....if it is orange check PC is turned light green also....if not then it defined that their is a problem with your PC itself and not the screen......have a technician looked @ your PC.....
If it was the power supply, the light would change to amber (orange) and then turn green again when it comes back on. Look closely at the screen when the it looks to turn off. See if you can still see an image. It may be hard to see, but when the backlights go bad or fail, the actual lcd screen itself still functions and you can see a very faint image. Maybe moving the mouse in circles might help you to be ablt to see. If you cant see anything at all, then it may be a bad board inside the unit.
Just a thought....
Try the unlock procedure:
With the monitor on press and hold the "MENU button for abot five seconds and see if it resets.
If that doesn't work tell me a bit more about the screen - is there any OSD (on screen display) or error messages?
Is the power indicator light on?
If so, what color is it?
Blue indicates that that you may need to turn the brightness and contrast up...\
If it is actually in power save the indicator light will be amber. What color is it?
If the light is amber and all the connections to the computer are correct and it still won't come-up then it's an internal problem and the protect circuit may be keeping the screen from lighting.
Good luck... And let me know.