core fhss transmitter screen gone black

[toooldskool]

using my transmitter today and noticed the screen has gone black.unit still works ok but obviously i cant view and adjust settings, is there a fix for this?

[toooldskool]

Update
I sent this to Schumacher Racing who repaired and returned the unit very quickly and free of charge.
can't ask for any more than that, excellent customer service :thumbsup::thumbsup: