Question about LG 42PX5D 42 in. Plasma HDTV

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50" lg plasma tv will not power up

Yesterday my 50" lg plasma tv would not power up. The red light was not even on. I unplugged it from the wall socket for 5 minutes several times and when I plugged it back in the power light would blink from red to blue. Finally after several attempts the tv powered up. Today it is doing the same thing.

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The problem with the set is bulged electrolytic capacitors in the power supply.

Posted on May 23, 2010

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This is a plasma unit and philips plasma's are nortorious for bad power supplys, your problem may very well be the power suppy in the television, it is possible you blew a low B+ fuse on the power supply. There is also a issue with the Y-sustain board failing in this model, If you open the back and looking at the unit from the rear the y board is on the left side of the unit and the PS is in the center. disconnect the Y-sustain power plug from the power supply and turn on the unit if the unit stays on with no red light then the y board is bad. it does the same then replace the Power Supply.

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