Repairing Aastra 9417CW Bell Phone

I have a Aastra 9417CW Bell telephone that is really a great phone, but
recently the display doesn't work at all either does the display
showing you what line your on (2-line phone). Does anybody know if
there is an easy fix for this? It seems there is no power getting to
the phone. The phone still works but there is no displays at all, no
hands free etc. Can someone please help !!

 

After doing some internet searching I have found out the proper name
for the phone is the Meridian aastra 9417CW. Thank-you for any help in
advance