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The device was received at the local service facility for investigation.The technical service report is attached (see comm log), and indicates: reported by the customer: not focusing.P/n #: 1488020125.S/n # : (b)(6).Summary of evaluation: unable to replicate fault reported by customer.Focusing ring functions as specified in qip.No faults found.Qip# qip10193 rev.F.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, coupler, 1488 & 1588 extension cable, intermittence while using rf devices , problem toggling light source or from camera head, connected monitors, leaking, use error, poor grounding , 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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