Ddj 1000 Display screen flickering and turning to white screen

Dear Pioneer Support, 

I have Pioneer DJJ 1000 Rekordboax screen flickering on jogwheel 1 and after 2 hour its  turning to white screen and will stay white screen until the next day, even when the device is not conectted to computer.  

I have tried the below.... 

1. Fireware update. 2. changing all the cables 3. changing the computer Window to Mac and Mac to Window, 4. reset all the setting on Reckordbox, 5. keeping the device open without computer, still there is Flickering then it will turn to white... 

note that the device is 1 and half year old with zero misused 

appreciate your advice