Acer V243H - Flickering and Buzzing

You will need to check that the connection with the computer is firm and also the correct drivers are loaded on the computer.

You can get the driver from this site and install on the computer.
You will have to select the operating system of your computer.

Hope this helps.

Hello,i think your LCD monitor is faulty and you should consider replacement.but first take to a qualified service personnel.

hi, have you checked running the monitor on all the outputs? dvi? vga? flickering is caused most times by bad connections either in the video cable, or on the video board, or power board inside the monitor. i know those monitors pretty well, i'm willing to bet if you opened up the monitor and looked at the power supply board, you would probably find worn/blown capacitors. this could very well account for the flickering. electrolytic capacitors store power for parts of the circuit that require lots of power to run. when they go bad(overheat) they pop up at the top, sometimes leak a little fluid. they are replaceable, need to be soldered in, and you can find them at most electronic stores abundantly, but you should check everything else first, the video cables(dvi,vga) before opening the monitor.

that happens when the monitor is on the way out i think you looking at new one

Hi
Change the power cable if that does not work the power connector on the monitor may be faulty, Test the moniter on a different computer

Check to make sure the cables are connected tightly. Wiggle the cable, does it get better or worse? Might need a new cable. And reseat the video card inside the computer. If that doesn't fix it, then yes you will probably need a new monitor.

I had an older mac Mini that would do that and could not use it with that monitor. it worked fine with my G5 powerpc, was probably a video card issue. I got it to work also by connecting with a VGA connection rather than a DVI

R1 will be blown, replace it with a 10 ohm resistor. Also replace C6 and C22 with 220uf 25v Capacitors.

Ok we must remember when we setup any device on our PC, one of the many non PnP devices is and LCD Monitor, your PC should always be shutdown before installing a new Monitor. If you did not do this you could have damaged the I/O port on your PC. Not a definite, but possible! When you plug up a monitor or any serial cable while the PC is still on, it is of a low voltage which can casue some issues for you! Sounds like this one is yours!

I fixed my AL2021 by replacing the output caps on the power board. $4 repair. Pull the thing apart and replace the 1000uF, 680uF and 470uF caps on the end of the power board.