Problem with COMAND rear display displaying video
I am having some problems with the rear display in my S-Class. Whenever I try to display video via the AUX inputs on the TV tuner I get no video and a picture of a display with a cross through it as shown in the photo.
The front screen is fine and the headphone socket in the rear screen puts out sound. If I play a DVD in the front head unit, the rear display is fine so it's not a cable issue I think. On the W220 s-class COMAND the video is sent to the the head unit over the MOST optical bus from the TV tuner and then outputted as an analogue signal to the rear display from the head unit. I have checked the coding in the TV tuner that it is set to "rear screen fitted".
Any suggestions greatly appreciated.
Cheers,
Adam



