LG 22" FLATRON LCD Monitor Logo
Posted on May 31, 2010
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Turned off montor and now it will not turn on and there is a flashing white light under power switch

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Bud Martin

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  • Master 11,361 Answers
  • Posted on Jun 01, 2010
Bud Martin
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Joined: Oct 24, 2009
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It is either not detecting the video signal from your PC or it is in shut-down resarting mode due to shorts circuits.
Try it on another PC first.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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