View Full Version : Ive moved..Now Ive got monitor flicker. Any ideas??

12-01-04, 08:55 PM

I recently bought a house. I now notice a flicker on the monitors on two different systems. These systems never, ever had any problem with any type of flicker on the monitors. The one is a Sony 21" Trinitron tube and the other is an e-machines 17inch something.

If I set the refresh rate to 60hz on these systems the problem pretty much goes away. Although my girlfriend can see the lines at 60hz on her screen so setting the refresh rate to 60 on her system is not an option. Thie flicker we experience is not a constant flicker. Its more like someone tmaes the screen and shakes it out like a dirty tablecloth once in a while . Very annoying.

I have tried using a UPS to see if this solves the problem. It didnt. Althoug it wasent a fair test because I only had two UPSs to try . One was an APC 350 which is so small its pathetic. The other was an APC BX1500. Certainly big enough but the battery needs replacement. The systems are not plugged into the same outlets. They are in different bedrooms.

Any help would be appreciated. I would consider going so far as to purchase her an LCD screen if you guys thought it would solve the problem. She doesn not have a DVI connector , just an analog but I would guess this would not suffer the same problem as the tube monitor.

12-01-04, 09:27 PM
Either something got screwed up inside the monitor during the move, or there's a flutter in your power to the monitor.

12-01-04, 09:39 PM
Well,both monitors were carried in my truck not in the moving van and both monitors have the same problem. I thought of power also, shouldnt a UPS help condition the power even though it is underpowererd for the application.

12-01-04, 09:56 PM
Fluorescent lamps with a ballast can cause this. Does it do it anytime of day or night.

Also, if you have a volt meter, check to see if you have a good ground on the common terminal in the sockets your using. It could be something as simple as plugging in to the other side of the phase on your power circuits. Even though both monitors are on different circuits, they could still both be on the same phase.

If all that fails, then it's also possible that your power supply is just too noisy compared to where you used to live.

The UPS...Yes, depending of course on what one you get. One with line conditioning would help.