There is no problem with monitor, there is no signal from your VGA card, looking for a problem in your case.
SOURCE: hi everyone , ive got a LG Flatron monitor model
Check out for bad caps in the power supply first.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, 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 LG and other 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
SOURCE: Lg Flatron W1934S Moniter Problems
You could have a faulty inverter board or a faulty CCFL lamp. The inverter supplies high voltage to the CCFL lamp and the CCFL lamp is a mini fluro tube.
Have a look at LCD Patrs WEB site for service, parts and DIY info Use this link to their WEB site :-
www.lcdparts.net
SOURCE: LG Flatron LCD Power Saving Mode
Well thats seems tricky does it not come on at all when you boot the computer. If the screen is working then it should work to display the Start up screen. If it does then keep pressing Delete until the BIOS comes up- then search the pages for power saving and slect to OFF
SOURCE: No picture lg flatron w2234s blinking blue light
Hi My screen developed exactly the same problem. It appears to be a hardwear problem associated with the screen it's self. continuity test is ok on the lead so I took it back to the shop under warranty and hey presto, the replacement works. I don't know what the problem is but there are a number of other folks on another thread with the same problem and their entries are dated May 09 too. Dave
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: 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.
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Thanks for the resonse, but i plugged LG monitor into my lap top and monitor still did not work. Screen on laptop is fine. I purchased another monitor that works fine as well
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