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Alleged failure: 10 min delay.Confirmed failure: abbp bent/broken pin d replace cable.Acac deformed enclosure dfte replace front enclosure.Adre deformed rear enclosure drre replace rear enclosure.Probable root cause: cables, hdmi cables, connectors, digital board, power supply, filter / fuse, ac inlet board, main board, transition board, intermittence between transition board and ch connector, software, camera head (sensor, sensor cable), coupler (dust on optics, scratched optics, broken / shifted lenses, focusing mechanism, endoclamp, zoom ring), problem toggling light source, connected monitors, leaking, poor grounding (e.G camera head connection from cable to transition board.), no/incorrect communication with light source, soaking cap disconnection during sterilization, electromagnetic interference (emi) from rf communication, hf surgical instruments, esd, or power surge, cybersecurity attack, pendulum ch inertial measurement unit (imu), incident light from surgical scene is reflected by coupler/ch window and use error.The product was returned for investigation and the reported failure mode was confirmed.The failure mode will be monitored for future reoccurrence.
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