I'm using a portable dvd player in my car. The problem is that untimely i have no more video signal on the lcd screen (the backlight is always here) and this happens several times a day (I have to turn the player OFF and ON to get the video signal and somtimes this doesn't work). the lcd controller is a
Sharp GCMK - M1X.
I have to notice that the video output of the dvd player is working without problems (when plugging it to my TV for example). Please what could be the problem.