Service Mode - Panasonic TC-P42X1 Technical Manual

While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the
remote control three times within 2 seconds.
Key command
[1] button...Main items Selection in forward direction
[2] button...Main items Selection in reverse direction
[3] button...Sub items Selection in forward direction
[4] button...Sub items Selection in reverse direction
[VOL] button...Value of sub items change in forward
direction ( + ), in reverse direction ( - )
How to exit:
Switch off the power with the [POWER] button on the main unit or the [POWER]
button on the remote control.

Service Mode

https://www.werbemousepads.de/pdf/