kuterman

hi, i'm from belgium, so, sorry for my bad english. i bought a md mz-nf610 i have the radio, but not, it doesn't work anymore but the AM work, i can find and listen station, but not with the FM i ear no sound, nothing, and it finds no station. it goes from 87.50Mhz to 108.00Mhz and it does'nt stop. the md had no choc. it disapeard whitout an explenation. maybe i did a wrong manipulation. how can i reset my option on my MD, or maybe it's not that, so, what is it? thanks