What if the optical drive doesn't bounce?

Q: The DVD drive took a year and everything was fine, and now there's a sudden strange problem. My chassis of the CD-ROM is vertical, now press the eject key can hear the previous CD-ROM normal eject the "ka" sound, but the tray does not eject. However, if the optical drive has a disc can also eject, flat drive tray can also be normal eject, and CD-ROM drive read the disk is no problem. power supply, voltage, and motor are normal, how can i solve this problem?

A: This problem is very simple, is the optical drive belt loose, it is recommended to replace the optical drive belt. You can try to open the optical drive, the bicycle tube to make a matching length of the belt to change, or press the opening key, with a paper clip that forced out of the hole. It is recommended that the optical drive should not be placed in a long disk, so that the time a long, may be completely unable to eject.