For these models (the newest panels): PDP-4280HD, PDP-5080HD
and perhaps the 5010 (1080p units). The latest word from Pioneer is DO NOT TRY TO CALIBRATE using the service menu as the controls do not work as labeled. I have emailed Pioneer and have asked for clarification and updates.
Edit: See Michael’s note above….calibrate using the highs only…DO NOT TOUCH THE LOWS