Question about Dell E773C 17" CRT Monitor

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Computer contrast keep popping up on screen

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  • wsa0175 Dec 15, 2008

    contrast stays on screen and i have tried going to the menu and adjusting it and when i hit exit about 10 second later it pops back up and re-adjust by its self back to 100 percent and it stays red right in the middle of screen

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I had a simalar problem with my Dell 2001FP. The issue is that there is false triggering of the switch; you need to open the front panel, and remove the swictch from the circuit by: 1) analyze the circuit; its usally pretty simple - a voltage drop circuit. 2) disable the switch by either removing it with a solder gun or, simply by using a sharp blade and cutting the PCB track leading it to it, as I did.(much easier - and reversible!) Fixed my problem.

Posted on Dec 17, 2008

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