Help Please

Hello everyone!

I just got a Brother Bas 423 and I cant get it to work. I turn it on and its registers the frames and everything, but once i hit send, I keep getting an over area error. I just replaced the key switch on it because the other key switch buttons didnt work. Heres a youtube video of the problem. I would realy appreciate it for the help guys!

http://www.youtube.com/watch?v=5rjfTBgtqqE&feature=channel_video_title

Thanks!!