Do this at your own risk since the voltages have to be checked with the TV powered on.
The power supply board has high voltages and can KILL you if you touch the wrong part.
Wear rubber gloves for protection when handling the power board.
A lot of Plasma TV problems relate to the SMPS power board and the Y sustain and Y upper and lower buffer boards. Aside from the obvious bulging or blown capacitors and burnt resistors, a good first start is to check the Vs and Va voltages on the power board. If the voltages are off, other components might not work properly. You can also check the voltages off the various connectors to see if the attached boards are getting the right voltage. After your repairs, you might have to adjust the Vs and Va voltages using the label with the proper voltages at the back of your plasma TV.
Click here to see part 1 on replacing the Y sustain board on this 50 inch plasma set:
• Replacing the Y Sustai...
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6 окт 2024
