Panasonic Plasma 3UY

Press the volume down & hold down the button on the plasma TV display.
Press 3 times the STATUS button on the remote control.
Status button is the one below Power button
The Service Menu mode CAT will comes up.
CAT is Computer Aided Test Menu
To select a mode parameter use the cursors keys on the remote control.
And press the Action key {} to access the menu.
To exit mode Press the R button.

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