Having problems with your Computer Monitors ?

Running lines To whom this may concern. I seem to have a problem with a few of our monitors, they have running lines even when a source is not connected to the monitor. I have tried changing the power supplies to the monitors, with no success. It can't be the voltage frequencey as they were working before. Any help would be greatly appreciated. Kind regards Mark


Answers :

What kind of running lines? Do these lines look really fine and multicolored with no obvious pattern, scattered all over the monitor screen?

It is probable that there's a loose diode near the vertical or horizontal sync circuits. Have those monitors checked by somebody who can locate those diodes and redo the soldering.
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