Question about AOC LM560 15" LCD Monitor

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Monitor is turning on and off and wont stay on. When I turn it on it turns on, show desktop and goes in standby mode.

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It may have bad DC filter caps in the power supply.
http://s807.photobucket.com/albums/yy352/budm/AOC%20LM729/

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Oct 08, 2010

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Posted on Jan 02, 2017

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Tried to understand, but I really can't. Can you please reformulate ?

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I have a dell studio 540 desktop, I need to restore to factory settings but my monitor will not stay open. It opens for a few seconds then immediately goes into power saver mode and turns off, how can


I see two things here, but need clarification;

1) Monitor goes to Power Saver Mode, then turns -> OFF?

Sure that monitor didn't go into Standby Mode?

2) Why are you performing a restore back to factory settings?
Pick up a virus?

Primer;
The monitor receives a signal. A video signal. The video signal comes from the computer.

If the monitor is NOT receiving a video signal, then the monitor will state No Signal.
This is for older monitors.

New monitors do not state No Signal anymore.
It's Power Saver Mode, or Sleep Mode.

If the monitor is truly OFF, the Power On button will Not be lit up.
Or the Power On LED light on the monitor.

Monitor power on LED is lit, or Power On button is lit?

Monitor is not receiving a video signal;

Use a monitor cable from a KNOWN to be working monitor, for a temporary test.
OR,
Use a Known to be working monitor, and it's monitor cable.

Need to find out if monitor cable is good.

Monitor cable checks out good?

Then problem is computer.

The two leading issues with desktop computer failure, is;

1) Computer is dirty inside
2) Power Supply inside computer is bad.

Please post back in a Comment.
Regards,
joecoolvette

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Well, at least you got it sorted out and everything is working fine now.

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When I turn my monitor on, the screen shows the desktop momentarily and then goes black. If I turn it off and on a couple more times, the desktop will stay on and function normally. Where is the likely...


Try the monitor on another computer, to check-out the monitor.

Does the POWER lamp on the monitor stay on when the monitor goes black? If so, then the monitor probably is OK.

Try a different monitor, to trouble-shoot the video-card.


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Hello,

If your computer turns on and your monitor stays in stand by mode, then there is no communication between your video card and the monitor.
You could check if the cable is plugged in correctly or even faulty.

It is also possible that there is a problem with your video card. Maybe physically uninstalling and reinstalling it could solve it.

If none of this helps, then you might want to check a new video card.

Hope this helped.

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Since you havent mentioned the operating system u are using .You can change the standby time manually to which you want .
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