It happens at random maybe after turned on for a couple of days, maybe after a couple of hours. More than three quaters of the screen just goes black, the other bit is still working fine
Computers & Internet - Fujitsu - Siemens Premium Line P15-1 15" LCD Monitor
Answers & Comments
Inspect the caps in the power supply and solder joints.
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 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