A couple of days ago my monitor went on the blink,(every 3 seconds the screen would show for like for a millisecond then go blank) then repeat the cycle.
I changed the monitor and that one was ok.
So i put the faulty monitor back on and back came the problem.
Well for one reason or another i left the monitor plugged in but switched off,(by the monitor).
Today i switched the monitor on and it seemed to be working ok but my computer was running slow,so i clicked on the task manager only to find my cpu running at 100%!!!
I then changed monitors again and every is working ok,(cpu 0-2%).
I then rebooted and back came the blink.
Has anyone got any idea's?
Video card is plugged via DVI cable? If the board in the flat panel is going bad ( main signal pcb) video card can be going up and down scale to control its sync with no luck, causing the CPU useage problem.Only ever seen this once. Normally, the monitor will not cause and performance issues other than you cannot see anything.
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Yes i do agree with you there is no problem with a graphic card,and i suspected it to be a problem with the cable which is used for connecting but it was fine when you swapped the monitors however i would still suspect on the slot where the cable is connected,may be you should try samsung service center before you decide.
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Had same problem, Monitor first turn on, backlight off after couple of minutes, off/on backlight off after few seconds. Solution cut J503. Found voltage OVPT (IC501,7) quite low (1.6V) this is the reference value for VSEN the over voltage value. By cutting J503, OVPT becomes 4.5 volt but is not depending anymore on the current through the lamps. Instead of the link J503 I solder 2x 1N4148 diodes which makes the OVPT not go below 2,8 volt. (diodes in series, cathode points to nearest board edge)
If you know how to open it up and get to the power supply you will find three capacitors 2-820uf and 1-330 @ 25vdc 105o.they will have puffed up tops replace them. FYI the monitor has a 3 year warranty.
HI SrFixer - Since you were able to attach another monitor to the computer and it worked, that would indicate that the problem is not a computer problem but a problem with either the monitor or the monitor cable (data). Try another monitor cable on the monitor that didn't work and see if that works. If it still does not work, then I am afraid that your monitor has gone bad and needs replacing.
Same with mine a couple days ago. I've been told the contacts have oxidized and need to be cleaned. It was going to cost about $80 to fix and no guarantee how long it would last so I just bought a new monitor.