I decided to check with Paul Morte Repair Services Center, he was not there today.
So, I called Korg usa product support and he told me that the screen is considered a part of the keyboard and the warranty covers all parts and labor for one year. On the product box there is a sticker that states you can even get an extra year of warranty for registering your Korg Product online give you a total 2 years coverage.
http://www.korg.com/service/warranty.asp
http://www.korg.com/productRegistration ... _form1.aspRegister online and extend your warranty for an extra year, free!
Register your Korg keyboard, keyboard rack module or digital piano online and receive a certificate that extends the product warranty for an extra year from the date of purchase. This offer is good for US customers only for new Korg keyboards, keyboard music workstations, keyboard rack modules and digital pianos purchased from an authorized Korg dealer after November 1, 2002. You must register on this site within 90 days of the purchase date to qualify for this offer!
All other products will receive the standard warranty that is included with all of Korg's products. Void where prohibited by law.
I knew what the warranty covers as I currently own Korg products that have been registered online extending the warranties.
Beware people!

TL