Appendix 3. Trouble Shooting 
App 3-4 
 
(Reason 3) Contrast is set too brightly. 
      (Action) In case contrast is set too brightly, screen may not be clear. 
Adjust the contrast switch with the driver. 
 
 
 
 
 
 
 
I 
Even after taking the described measures if screen remains inactivated, then contact a custom service center for further assistances.