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Philips LCD TV three quarter of lower screen turns white after a while

Hi i am not sure if i can ask this question but i recently bought a second hand Philips 47pfl5609d/30 LCD TV. After a couple of weeks using it, 2/3 of the lower half of screen turns white after powering on for a moment. I have tried opening the back of TV to check for bad capacitors but could not find any. I have soldering skill and voltmeter/multimeter but not skilled in checking the volt among the component. Any help is appreciated.

Update

Hi all, werent sure if anyone could help. Anyways i have tried reseating the lvds cables and the two flex cables connecting from the lcd to the t-con board but still no result. Now am wondering if it is the inverter issue. Will try again and post the result. :\ if anyone can assist with some form of guide or sugg, feel free to flow here... would greatly appreciated!! ;)

Answer this question I have this problem too

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Hi all, replaced the tcon board with another new tcon board yield the same problem, three quarter of the screen still fades to white after switching on for awhile... :( i tried opening up the front of LCD to try and reveal the ballast (if its called) or inverter board as i could not locate at the back of tv to no avail as i do not know how to exactly remove it... Any help would be appreciated...

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