Can I fix the chimes on my clock without taking it to the shop?

I have no idea how the chimes got off. On the top of the hour chimes ring a full tune and ding the correct number of the hour. At quarter past it is supposed to chime a quarter of the tune (half past - half of the tune....and so on) but it chimes the quarter tune, starts over and chime the entire tune with no dings. Then at half and three quarters past it is silent. What happened? Can anyone please help!