May lg50ln5100 tv has no picture. Turned it off one night and turned it on next day to no picture but had sound. Replaced all three boards and it still doesn't work. What should I do next.

SOURCE: RCA HD52W55 No sound no picture

Have you solve the problem?

SOURCE: No sound on 50 inch hitachi tv

Have you checked other inputs with a known good program source? Mute button on remote?

SOURCE: Replaced lamp Mitsubishi WD-52531 worked for one day

Ballast Board may be Bad it is what turn Lamp on Call Encompass for parts 1-800-638-3328 or look for one on E-Bay they have good deals on Parts.Also CK Fan to Lamp it maybe defective .Call Mats for Fan 1-800-628-1118 they have lamps also.

SOURCE: TV worked fine one night, next day screen is white.

The LCD Panel failed. There is no easy fix but try to get the T-Con board to fix the issue. However, this part is usually only available with the whole LCD Panel. This is usually the most expensive part in the TV and the whole TV needs to be taken apart to replace the panel.

Might be economically viable if you can find a place that carrys the T-con but Dynex parts are usually hard to find. The LCD Panel part alone will exceed the cost of the TV.

SOURCE: 2003 samsung HLN5065w DLP TV

Sounds like power supply fault in TV. Need to take to TV repair shop.