2. Observe the bottom of the crystal ball music box and find the disassembly opening. There is a circular or oval groove at the bottom for fixing the crystal ball.
3. Press the groove with your finger to separate the crystal ball from the bottom. There is adhesive between the crystal ball and the base. Please pay attention when disassembling, so as not to damage the movement. After taking out the crystal ball, you can see the internal structure of the music box, and take off the upper cover. Observe the edge of the upper cover at the same time, find the buckle or screw, and take it off with a screwdriver or pliers.