pick up buzz and crackling noise - ibanez sa-260fm guitar

Hi i recently bought an ibanez sa-260fm guitar. When I first played th gutiar the middle pick up wasn't working this problem has now been resolved but there is a crackling noise present whenever I turn up the tone control, there is also a loud buzzing noise on the neck and middle pickups. I was wondering what these noises were and how i can get rid of them. Is the guitar faulty or just not adjusted properley? I have attached an image of the guitar.

Thanks