AOC LCD LM725 monitor - Black Screen

Hello,

The picture board on your monitor is bad, since it goes off after few seconds and the power led or button is on, it means the picture board of your monitor has developed fault.

The best thing for you to do now is to take the monitor to a local repairer or service center within your vicinity to help with the replacement of the picture board because the fault is not something you can fix yourself, in order not to complicate issues.

Take care.

Buy a new keyboard.

Maybe one of the volume buttons on the front panel control is randomly shorting. Check it out...

THIS COMPUTER THAT I AM ON ALSO DOES THE SAME THING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! GRR...................=.="""""

Change the monitor and check if the PC works. If it works then the problem is with the monitor, you will have to send it to repair. If not then, the problem should be with the power supply, check whether all the cables is kept intact.

try looking for bloated caps, check all diodes... see if its not shorted/leaking and finally check the power regulator ic if its not shorted! note: some capacitors and diodes are very tiny, you should use a lens with good amount of light...



if it does not help..... well, what the hell? try pouring some gas, then light it up! that should solve the problem, at least it turned on right? hehehehe!

the moniter may be having  some technical errors   maybe the IC's has got corrupt 

you need to call the seller of the moniter

I've had a very similar issue on many Dell Monitors. Mine have been under warranty and they usually send me a new monitor, but I believe the issue lies with the power supply within the monitor.

I start my computer and turn it on, and everything looks fine for about 1/4 of a second and then it goes black while leaving the power light green. I can only see the screen again after turning it off and on, but that's only for another 1/4 second. What's up?
I got my rosewill flatscreen as a hand me down from my father. I've had it for several years now. Was working fine until a month ago. When I turn the computer on the screen goes black after 1/4 of a saecond. I have to turn it off and on anywhere from 10 to 20 times before it stays on. I have checked all plugs to the computer and outlets. I have absolutely no idea whats causing this.