LG 50PX4DR 50 in. Plasma TV/DVR Combo popping noise picture went dark but still plays - what caused this ?
Nov 26, 2010
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Product Troubleshooting for 50PX4DR 50 in. Plasma TV
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Hi,Hi,The pop sound was due to any component failure.Most probably the capacitor. Depending upon the size the sound is produced.The
first step of diagnosis is checking the fuse. The boards of the plasma
tv are very costly and in most of the case non-repairable. The only way
out would be replacing the ones required.If you want to repair it
yourself then you should be having proper knowledge about the internal
circuitry of the plasma TVs as they are totally different from tubes and
lcds.You should also require a multimeter and soldering equipments.It is not possible to say which board because the diagnosis has to be done step by step.You will have to check the PSU output and Y board and Z board input.Most probably you will need to replace Y,Z and Ctrl board unless there is virtual defect.Let me know,if you wanted to repair it yourself. I would be glad to help you further.Hope i helped you.Thanks for using ' Fixya ' and have a nice day!!