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The device was received at the local service facility for investigation.The technical service report indicates: problem description(symptom): as reported by customer image is getting foggy.Action taken at site (diagnosis): checked the camera head no fogging issues found and focusing is working fine.Camera head is working fine.Final report: camera head is working fine no fogging issues found and it is under observation 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 ¿ software ¿scope ¿light source ¿ camera head (sensor, sensor cable) ¿ coupler (dust on optics, scratched optics, broken / shifted lenses, focusing mechanism, endoclamp, zoom ring) ¿ 1488 & 1588 extension cable ¿ intermittence while using rf devices (ex: valleylab) ¿ problem toggling light source or from camera head ¿ connected monitors ¿ leaking ¿ use error ¿ poor grounding (e.G."finger" grounding tab connecting front and rear enclosure.Camera head connection from cable to transition board.) ¿ electromagnetic interference (emi) from rf communication, hf surgical instruments, esd, or power surge ¿ manufacturing/ service nonconformity the reported failure mode will be monitored for future reoccurrence.
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