pioneer plasma with no picture

[cwbravo]

I have a Pioneer pdp 436pu (4360HD) that is run by a Pioneer PDP-RO6U media receiver
Problem is no picture. There is a slight grayness to the screen once the media receiver and monitor is turned on. Slight static noise from the speakers. The media receiver and monitor shows normal solid blue light once turned on. After research, I have replaced the xdrive but no change. I did attach a PDP-RO5 to the monitor (works on a different 4360HD) and same results - slight gray screen with lights out and slight static noise. Any further ideas??
Thanks