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The product was not returned for investigation and the reported failure mode was not confirmed.Alleged failure: loss of image.Probable root cause: cables, connectors, digital board, power supply, filter / fuse, ac inlet board, main board, transition board, fiber board.Intermittence between transition board and ch connector, fan / insufficient cooling, software, camera head (sensor, sensor cable), coupler (dust on optics, scratched optics, broken / shifted lenses, focusing mechanism, endoclamp), extension cable, intermittence while using rf devices (ex: valleylab), problem toggling light source from camera head, connected monitors, leaking, manufacturing/ service nonconformity, use error.The reported failure mode will be monitored for future reoccurrence.H3 other text : 81.
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