Download Troubleshooting

Switch Mode Power Supply Troubleshooting
This Section of the Presentation will cover troubleshooting the Switch Mode Power Supply for the Single
Scan Plasma. Upon completion of the section the technician will have a better understanding of the operation
of the Power Supply circuit and will be able to locate voltage and test points needed for troubleshooting and
alignments.
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DC Voltages developed on the SMPS
Adjustments VA, VS, and 5V DC
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Always refer to the sticker located in the upper right side of the PDP for the correct voltage levels
for the DC 5v, VA, VS, V SET UP, -VY, VSC, and Z Bias as they will vary from Panel to Panel.
V SET_UP
-VY
Plasma Display Panel Troubleshooting - 2007
VSC
4
Z_BIAS