The reported complaint of the autopulse platform (serial #(b)(4)) displayed "system error, out of service, revert to manual cpr" error message during power on was confirmed during functional test and archive data review.The probable root cause of the system error was due to defective processor board, likely due to defective component.The reported complaint of a flickering lcd display on the platform was not confirmed during functional testing.The lcd display worked without any issue and passed all the functional check.No physical damage was observed on the returned autopulse platform during visual inspection.During archive data review, system error 132 - internal watchdog timeout was observed on (b)(6) 2020, thus confirming the reported complaint.During the initial functional test, returned autopulse platform displayed "system error, out of service, revert to manual cpr" during power on.To remedy the system error, the defective processor board was replaced.After service completion, the autopulse was subjected to the run-in test using the 95% patient large resuscitation test fixture (lrtf) with good known test battery until discharged without any fault or error.The autopulse platform passed all functional tests and it is ready for clinical use.Historical complaints were reviewed for service information related to the reported complaint and there was no previous history of complaint reported for autopulse with serial number (b)(4).
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During shift check, customer reported that the lcd was flickering and unreadable on the autopulse platform (serial #(b)(4)).Customer reinstalled the autopulse li-ion battery and platform worked as expected.Per customer, the lcd issue happened twice within 2 weeks.Before sending the platform for evaluation, the platform displayed "system error, out of service, revert to manual cpr ".No patient involvement.
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