i buy a keyboard technics kn1200 from my friends but i dont have a owner manual books,n the important the keyboard disk drive r not working properly,when i entering the diskett its just shown "error2: there are no disk in the disk drive".or sometimes it shown "error 2: the disk are not for this product".my question is.my keyboard disk drive crash or what?please give me the owner manual books in Indonesia language.thx very much bro...GBU