Question about LG Flatron 295LM 22" LCD Monitor

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I just bought an LG Flatron LCD 295LM Monitor/TV today and was told that it works and just needed a power adapter. The monitor's power ratings are 15V 5A but I am using an IBM power adapter with 16V 4.5A. The monitor's back light lid up and the power led lights up green and no post. I connected the monitor to my PC while pressing the "source" button once every 5 seconds and still no post. I also tried connecting the monitor to my DVD and Playstation 2 console using both the S-Video and composite red white and yallow connectors while pressing the "source" button. All I see is the back light lid up the power led lid up green no messages are posted onto the screen like most monitors would such as "no signals detected" or "please check cable" ect. nothing.

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I have a feeling that the monitor has the problem, monitor can take +/- 10% voltage variation.
You said the backligts are on, do they stay on? You should be able to see the glowing screen in the dark room, if it does stay on, then you may have T-CON board problem.
I cannot see how the seller says that it works when the person does not have the power supply to try it out first.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Posted on May 23, 2011

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Posted on Jan 02, 2017

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So, you have to check and make sure where the problem is (display card, monitor, or cable). Try with another cable or monitor. This way you will know where the problem is. If you don't have another monitor, try the monitor you have with build in VGA output on motherboard by taking the display card out.
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