SOURCE: lg flatron l1510s
Try hooking the monitor up to another computer to see if the symptom remains the same if it does you might be needing a new monitor
SOURCE: power ON, no display ,when switch off and on
check the power cords and the video connectors. if it's ok, then it could be a problem on video card
SOURCE: LG Flatron - green power led blinks twice
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 LG 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 tv model 21fc2ab tv after power on power indicator blining with beep
Yeah, that's not good.
The manual provides no information on this at all.
It's not user serviceable, in any case. If it's still under warranty, contact LG and see about having it serviced. If it's not, it will need to go to a repair shop to be fixed.
A recent discussion I had with a sales person at Best Buy regarding the cost of repairing Digital TV's these days, is that it's usually more cost effective to just get a new TV, as unless it's an in-line fuse that has blown, any repair work is going to generally involve replaicement of the main board, and will end up being a few hundred dollars, pretty close to the cost of a new TV anyway.
Sounds like it's time for a new TV.
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