Question about Hyundai ImageQuest L50S 15" LCD Monitor

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Automatically turns off and on withing 2 secs

My Hyundai L50S monitor keeps turning on and off by itself. Power button flashes a light green then dark green color and you can hear the sound of it turning on and off from the built in speakers. It also does this when completely diconnected from computer and monitor plugged in. No response from power button or any other buttons. Please hellp!

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  • Master
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The power button board is electronically fried you need a new one

Posted on May 08, 2008

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I had the same problem some time ago.
After dismateling the power-supply unit it apeared that there was en crack in a solderjoint at one of the power transistors. This transistor has 3 legs (TO220 I believe), from which the middle leg had a solder crack, probebly due to thermal stress. Just resolder and it worked again....
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