Assertion: cd player's laser | /r/HasProperty | defective
Facets:
Source sentences:
text: CD players sometimes eject discs without playing them because the CD is not the proper format for the machine, there is dust in the machine, the CD player's laser is defective or the disc has not been inserted correctly.
text: The entire laser could be defective.
text: The laser optical power output is feedback controlled and unlikely to change unless the laser is defective - in which case adjustments will have little effect anyway.