As part of the investigation, a device evaluation, review of the device history record (dhr), and review of the instructions for use (ifu) were conducted.The device evaluation could not confirm the user report.The failure could not be duplicated after testing with all scopes.However, the evaluation found the power switch needed to be upgraded and a non-olympus lamp was being used.The caution sign on the front was also damaged but still readable.The review of the dhr did not find any abnormalities or anomalies identified during production.The ifu contains the following statement: "never install a lamp that has not been approved by olympus.The use of a non-approved lamp can cause damage to the light source and ancillary equipment, malfunction or a fire." the root cause could not be established.Possible causes of no image include connection issues and environmental issues.
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