Adj Voltage
Plasma LG50PX10 help?
I am a long time electronic tech and recently starting repairing lcd and plasmas.. I have a lg50px10 that everything functions, picture comes on, colors, osd contrast etc changes as adj’s are made but picture is extremely faded. It is all there but very weak. I have tried replacing the ysustain…no changes. I also verified the voltages from the lvps and they all are right on.
The customer said he hear a loud pop (cap i guess) and the picture suddenly faded. I just want be sure that this couldn’t be the screen itself before I try an x sustain board. What else would cause this typically?
Sounds like it might be the Z-sus!
Disconnect the Z-SUS board from the Y-SUS board. The Z-SUS board is situated on the right side viewed from the rear of the TV while the Y-SUS is on the left.
Plug the TV back in and turn it on.
If it doesn’t pop and stays on, the Z-SUS board is faulty. Replace it.
If it still pops and shuts off, disconnect the Y-SUS board from the Power Supply. The Y-SUS board also develops a high voltage during operation.
Re-connect power then turn the TV on.
You’ll not be able to see any color or video. If it does not pop and stays on, you have a faulty Y-SUS board, replace it.
Custom Benchtop Adjustable Power Supply
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