Radiogram 1970s for repair

Needs some work , radio tuning button is stuck and when Turned on the unit has a loué humming sound record player works but because of the humming noise it would need to be sorted , i reckon its an earthing problem , whoever owned it before me had a go at fixing the radio but they OBVOUSLY didnt have a clue , SO UNLESS YOU KNOW WHAT YOUR DOING I WOULD ADVISE U TO STAY AWAY FROM IT , Nice bit of furniture or make into drinks cabinet ect