Panasonic TH-42PX50U - Customer Caution and Blocking Messages; V-Chip System Warnings and Blocking Messages; Changing the Lock Password

8.5. Local screen failure
Plasma display may have local area failure on the screen. Fig-1, 2 is the possible defect P.C.B. for each local area.
TH-37, 42PX50U
Fig-1
TH-50PX50U
Fig-2
38
TH-37PX50U / TH-42PX50U / TH-50PX50U