Question about LG 46LD550 46 in. LCD TV
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Posted on Jan 02, 2017
SOURCE: screen just suddenly went dark!
If you can see a faint picture with streaking you most likley have a defective Zsus module Part Number 6871QZH036B Description PWB(PCB) ASSEMBLY,DI List $226.14 Please rate my info
Posted on Feb 20, 2009
Take the back off with no power connected..You should have 2 invertor pcbs..one on the left and one on the right..well the side of the picture you cant see is the same side of the faulty invertor..replace this and this should solve the problem.it is the cheapest option..if not..im afraid is is a new LCD screen unless you are prepared to take it appart and replace backlight bulbs :)
Posted on Oct 17, 2009
SOURCE: My LG 42PC3DC has ghosting
The ghosting is a sign of slight image retention and the reddish hue is over diffusion. This can normally be fixed by a voltage adjustment on the power supply.
Unplug the set and take the back off
Plug the set back in and turn the set on
With a digital voltage meter find the test point on the power supply that says VS. If you cannot find it, you can still measure it at the connector. It will say VS in a few different places.
Compare that voltage with the voltage that is on the sticker that is on the panel. If it does not match
Take a small screw driver and find the pod that says vs adjust and adjust the voltage to what the sticker says. If it already matches, then raise or lower it about 10 volts or until the picture starts clearing up. If it does not clear up either direction, then you will need to replace your logic board, which is the small board near the middle of the panel. Worst case scenario is that your panel if faulty, which would not be cost effective to replace.
Posted on Apr 19, 2011
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