Question about Samsung SyncMaster 793MB 17" CRT Monitor

1 Answer

No diplay in Monitor

My monitor is not displaying. But the green LED in the side is blinking. I checked the cables.Its fins. Wat may be the reason?? Pls help me out.

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  • boybawang Aug 19, 2008

    I have the same problem.the monitor is blank but the green LED is blinking.
    I know it's not a problem with my CPU because it continues to boot despite the Blank screen. Infact I can hear the "Windows Welcome Sound"
    Please help me.

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  • 279 Answers

The blinking LED usually denotes that no signal is reaching the monitor. Do you have another monitor you can attach to the computer to test it? It sounds like it may be a computer problem, not a monitor problem.

Posted on Aug 28, 2007

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You said your monitor will blink but no picture display... well, there are possible reasons why this problem occur..

1. Open the back cover of your monitor..Check the power supply section for possible loose connections and blown capacitors.. Resolder any loose terminal connection on the pcb. Check for any blown capacitor, replace the capacitor with exact value, and also replace any bulging capacitor..If you have successfully replace the parts you can try to turn it on and connect the vga cable in it to the video card of your computer. Turn on also the cpu, if the monitor led turn green and the display came out..that fixed it.

2. In case you have successfully repaired the power supply section and the led of the monitor stays green.. then the problem will be in the inverter board section....Turn off your monitor... open the back cover...on the inverter board section.. check and replaced burnt or overheating high voltage transformer..if one or more of this overheats, it is enough to affect the supply current from the power supply section and that may cause to blow your capacitor...If the ballast transformer is working fine the last thing to check is the backlight inverter (the light that illuminate causing display in your monitor) Replace any busted lamp.. that should fix the black screen on your monitor. ..

If you find this information very useful..please be kind to rate this solution and vote for this on the help below...thanks..




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