Hello,

The main cause of this power up problem are bad capacitors on your power if the capacitor is bad. See more bad capacitor image

Now, if your LCD set is still under warranty I would suggest to use it and let the professionals handle the problem for you. but if otherwise Power supply board just die.It can be dead at anytimes.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.


I hope this will help in fixing the fault of the television and do take care in handling the television because it contains high voltage

Unplug it for about an hour to let it resets itself. if it still does not work, then you have to inspect the power supply module. Look for bad caps and fuse first.
Example of 2 years old SAMSUNG: http://s807.photobucket.com/albums/yy352/budm/SAMSUNG/Samsung%20LN32A330/

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
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
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.