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LG Monitor won't turn on

It was on this morning, but when I came back after lunch it's now black and won't turn back on no matter what I do.

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  • Jennifer Brookman Feb 13, 2012

    From the quick responses I've received, I'm guessing that it's not an easy as I've tested the power and the cables to no avail... it simply won't turn on any more. The monitor is over 4 years old now, so likely just needs to be replaced.

    Thanks for al your help everyone.

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  • 51 Answers

I had this same problem with mine, and had to replace it. Sometimes it's the power supply, but depending on how old it is and how much it's been used, usually unlikely.
If you have a way to check the power supply output for proper current and voltage, and it appears to be fine then that's eliminated as a possibility.
Typically, time to replace it, unfortunately.
I hope this helps!

Posted on Feb 13, 2012

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Hello,

We have some dis-assembly guides on our web site at: www.ccl-la.com/badcaps.htm There are not for your exact model but they should help.

Buddy
Corporate Computer
www.ccl-la.com

Posted on Aug 31, 2009

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The problem you have sounds like the inverter board has failed it can be repaired by replacing the inverter board which may be a cheaper option than buying a whole new monitor, you can do a search online for lcd repairs and spares to find the part you looking just state your make and model and price one up.

But before you do do that, and you feel confident that you could take the back cover off the monitor, you could have a look for blown capacitors, they are quite a comman fault in lcd monitors, once the back cover is off check the power supply board, it will be where the power cord plugs into the monitor, The capaciters are barrel like in shape with silver tops, check for any leakage from them or on the board surrounding the capacitors, also make sure they are fully flat at the top, if they are slightly domed or pretruded they will need to changed. post back your findings if you do find any bad caps ill will try to explain how to get the right ones and what do to. cheers.

Posted on Feb 01, 2010

ynogami21
  • 670 Answers

SOURCE: My LG 1715S monitor that

Hi there,
Normally the option to reset the monitors default settings is available on the On Screen Display.
Try to Go to Menu look for Advanced Menu or any of that sort and the choice to reset it to factory default should be there.
Otherwise a hardware problem with the color mixer is the cause and that would have to be sent to the service center for repairs.
Other things you can try is to swap cables and try it on a different computer or a TV box.
If the same result happens then definitely it's the color mixer that has gone bad. Maybe it tripped or the part already given up.
You can try contacting LG through 1 (800) 243-0000
Hope this helps!

Posted on Jul 17, 2011

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LG monitor will not turn on.


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http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
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