Local Screen Failure - Panasonic TH-42PX20U Service Update Information

Local screen failure

The Plasma Display Panel unit may develop a failure, where the symptom is
localized in a particular area of the screen. The figure below can help localize the
circuit board that is most likely to be defective. In the example in figure 24, one
of the two boards, C2 and D is likely to be the cause.
Figure 24
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