The orange LED indicator light keep blinking?Tries Websites Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board to for the replacement.If u have no elctronics skills to buy and soldering componnents parts to the PCB board.The orange LED light indicator is solid after picture disappear few secound.Ur LCD inverter backlight board is dead.Replaced that LCD inverter board,will get ur picture back.It a long pcb board shape.
I assume that you already try this monitor on another PC to verify that the problem is in the monitor, in this case you need to open it up and inspect the fuse, transitors, solder connections on the power/inverter board, see failed Dell monitors here for guide: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further.
SOURCE: my dell monitor turns on for 2 seconds then goes
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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 DELL 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
Replacement bd: www.lcdreapir.us
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