Technics PR902 Digital Piano - Takes Too Long to Boot Up

by Alse
(Lisbon Portugal)

My Technics PR902 Digital Piano has recently developed a problem!

I have a Technics PR 902. It's great! Has magnificent sound!

However recently it starts to take about 6 minutes to boot up with the screen lit but blanks.

Anybody knows solutions for my Technics PR902 Digital Piano?