SAMSUNG PS50Q91 PLASMA

[willy11]

Hello,

When I connected my LG DVD Recoder RH 278 with a HDMI cable on my Samsung plasma comes in midle of the screen the error message
not supported.When I connected a sattelite reciever on the same HDMI it works.When I connected my dvd recorder on a other lcd of plasma it works.In the beginning all was okay,maybe I can return to the orginal settings, but I don't now how I do that, or maybe with service menu but also I don't now how I can open this menu.
Can some one help me please, thank you in advanced