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Alleged failure: blurry grainy image.Confirmed failure: chd-a-lcj loose cable jacket 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 (see rsk10356 output ""visualization/image"") ¿light source (see rsk10975 output ""white light"") ¿ 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 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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