Which is the menu item for tv usage? I couldn't find it in the service menu. I guessed it was AGING. But AGING shows a bright pink screen with nothing on it.
check here Panasonic Viera TV Fan club V.1
CODE
# Hold down the {VOL -} button ON THE PLASMA TV itself. Not Remote
# Press the {RECALL} button on the remote control 3 times
# The Service Menu will be displayed.
# Use the {2} buttons to select "SRV-TOOL"
and press the {OK} button to access it.
# HIGHLIGHT the box on the right side of the last option: (Navigate by using the arrow buttons on the remote)
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| PTCT :00.00.00.00.00 | HIGHLIGHT HERE |
# Then press and hold the {MUTE} button on the remote for 3 seconds.
TIME = Hours and Minutes of Operation.
COUNT = Times the Plasma was Powered On