Genesis Digital Lens not working

Hello there

Until now working flawless, since yesterday my Digital Lens is no longer functioning. I have checked without the Lens using my two DACs Eastern Electric Mini Max and Softone Model 2 for connecting to my CDP directly, both DACs work flawless with the player. I have also switched every kind of cable (coax, toslink, AES) between the Digital Lens and the DACs, nil sound from the speakers.
What puzzles me too is the Digital Lens shows via display its linked to the CD player and its shows the 44.1Hz frequency in the right section of its display. Left section correctly signalling input info, regardless of connection, ie toslink or coax or AES/XLR.

Help appreciated, schematic too. 

Thanks a lot.

Harald