Panasonic TH-42PV7HS - Self-check Function; Troubleshooting: Local Screen Failure

9.5. Local screen failure
Plasma display may have local area failure on the screen. Fig-1 is the possible defect P.C.B. for each local area.
Fig-1
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TH-42PX7A / TH-42PV7AZ / TH-42PV7HS / TH-42PV7M / TH-42PV7MR