Pioneer PDP-R06XE

[thomash_za]

I have a Pioneer PDP-R06XE media receiver connected to a PDP-436XPE.
When I switch the unit on every thing looks normal, no errors. The problem is nothing is been displayed, no menus,no picture. If i unplug the system cables the plasma flashes the red and blue squares as it should.
I am looking for a service manual for the PDP-R06XE can anyone help or have any suggestions???

Thanks
Tom