This supplemental report was submitted to provide additional information to mdr.The customer declined repairs and the device was returned unrepaired.The device repair history was reviewed which indicated the device was purchased on (b)(6) 2013 with no previous repair records.The original equipment manufacturer (oem), performed a device history record review and no abnormalities were noted.No device was returned to the oem, however, an investigation was completed by the oem and determined that there is no manufacturing, material or processing related cause for this failure mode.The potential root cause has been determined to be due to the following: it is presumed that as approximately 7 years had passed since delivery of this product, this event was caused by deterioration due to long-term use, or that this event occurred because the user attempted to pull the video connector without lowering the locking lever or because excessive force was applied to the locking lever (video connector socket) or the video connector.Olympus will continue to monitor the field performance of this device.To mitigate device damage, the instruction manual of otv-s190 contains the following description.- properly and securely connect all cables.If the cable connector has a locking mechanism, such as connection screws, lock the cable connector.Otherwise, equipment damage or malfunction, such as no images on the monitor can result.- push the video connector into the video connector socket of the video system center all the way until it clicks, holding the video system center with a hand so that it will not move.Confirm that the ¿up¿ mark points upwards.- when an evis series endoscope is used, disconnect the scope side connector of the videoscope cable and place it on the scope cable holder.If disconnecting the video connector of the videoscope cable from the video system center while holding the video system center with a hand so that it does not move and pushing the locking lever down, place it on the side of the scope cable holder.
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