If you have a MS908 , Set your HD TV input to HDMI 2 and connect an HDMI cable between your Maxi Sys to your TV HDMI 2 and if the TV screen displays the MaxiSys fine but your Maxi Sys Screen doesn't , the problem is most likely the Maxi Sys screen. If the TV screen display of the MaxiSys looks goofy, then it is likely an internal hardware problem .