Here is my dilemma. I have a LG 42PC3D-UE and lost my picture but still have sound. Now it seems that alot of these LG TV's have the same problem. What I have done is disconnect the power the the ZSUS and the tv powers on without sound of course, but when I disconnect the YSUS board and connect the ZSUS board the TV clicks on then off. Now the interesting thing is when I disconnect the both boards the TV powers with only sound. So what is did remove the fuses (from the ysus and zsus 4 in total) and checked them and found that one was open. The problem is I mixed up which fuses came from which board So I just replaced the open one and inserted them back in the clips. I still got the same result, but now I have a bit of smoke coming out from the top left corner of the control board! Previously I didn't have this problem only when I replaced the new fuse. I also just wanted to add that after running the unit for 15 min I found that the ZSUS was cold and the YSUS was warmer. I also checked the voltage going to the boards and it all checks out. Any help would be great!
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