My Acer B243W LCD monitor keeps flickering, then goes black. I have to turn the monitor off, then on and it comes back. This is happening frequently and is very irritating. Yesterday it only happened twice, but today it's every 15 minutes or so. Any help would really be appreciated.

SOURCE: Acer al2002w flickers and goes black

Hi....there,
Well, you've got a busted backlight inverter... Need to replaced a new one...

SOURCE: my monitor goes black for about 2 seconds then goes back to pict.

Sounds asif the Xenon tubes that backlight the LCD are losing power. Probable cause, a power invertor or PSU fault.
It can be repaired by a hardware specialist, but best written off.
The cost of repair will be better spent on a new monitor.

Computer Doctor

• 123 Answers
• Posted on Apr 29, 2009

SOURCE: Monitor restarting randomly

Rarely does a monitor go out due to drivers. Try another monitor and verify that it isn't the computer (it isn't). If the power light goes out it is the power supply (usually inside) the monitor. If the light stays on, it will most likely be the backlight power unit. Browse the internet for the model and parts. Newer units are difficult to find.

SOURCE: my monitor flickers then goes black

It could be the capacitors on your monitor's Power Supply. Open up the lcd and check the power supply board see if you see any "BULGED UP" capacitors. If thats the case you most likely just need to replace the bad capacitors. Go to radio shack or electronics supply store buy the same capacitors with the same mF and volts. If you can't find the same ones then always go with higher voltage. Replace the bad ones with new ones following this video. Make sure you note the negative terminals on the CAPS before you remove them. The shorter side on the new CAP is always negative.

SOURCE: Display coming for 2 sec and then it goes off

Does it work well with other computers?
If you are connecting to a laptop, try switching display modes (like you would do for a projector)