Cause of a failure of a drive of the frame of CD-ROM (DVD-ROM) often is sliding of take-up belt on a pulley of electromotor. For sliding elimination of the belt, the rubber ringlet is put on an electromotor pulley. The ringlet can be cut from rubber nipple hose from the bicycle inner tube. The equal ringlet is cut off in the thickness about 1mm from the hose.
The rubber ringlet can be put on a pulley without demolishing and without removing CD-ROM (DVD-ROM) from the place. If the frame is not advanced itself, it is necessary to advance manually by means of a needle or a metal paper clip. (By means of the needle push the fixer being in a special hole on the front panel). By means of tweezers the belt carefully is removed. By means of two tweezers the prepared ringlet is put on the pulley and aligned on the pulley middle. The belt is put into place.