My Acer LCD flashes on and off continuously while making a 'popping' sound.

SOURCE: Yep mine too, I have no green light only flash and pop sounds.

Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

SOURCE: Acer 17" LCD Turns On & Off With A Buzz Sound

1.there are two rectifing semiconductor in the sm transformer secondery[out put]5v and 12 volt.check the 12 volt diode

2. check the flyback pulses from lightup section

satheesan karivellur