The subject device was not returned to the service center for evaluation.
The device was sold on july 18, 2004 with no repair records.
The original equipment manufacturer (oem) performed a device history record review and no abnormalities were noted.
An investigation was performed by the oem and determined that there is no manufacturing, material or processing related cause for this failure mode.
The potential cause of the reported lamp deterioration/failure is due to long-term use, or the illumination optical system failed.
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