As reported for this event, during an unknown procedure the device had an audible beeping sound from the white balance button.The white balance of the scope could be done, and there was no problem with the image.The front panel switch appeared to be sticking.There was no problem when the white balancing was done with the keyboard.There was no harm or adverse impact to the patient or procedure.
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This report is being supplemented to provide additional information based on the legal manufacturer's investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the legal manufacturer's investigation, follow-up was conducted to blueprint the system, and based on the information received that the problem was solved, it is inferred that there was no abnormality in the device, and that it was a malfunction phenomenon that occurred because the user interrupted the system set-up.Regarding the front panel button "sticking", it is likely the button becomes stuck due to repeated use over a long period of time.It has been more than 12 years since the device was manufactured, and over 8 years since delivery.
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