The reported complaint that the autopulse platform (b)(6) displayed "system error, out of service, revert to manual cpr" was confirmed during archive data review and functional testing.The root cause of the system error was the malfunctioning processor board due to failed component(s).Visual inspection revealed a cracked top cover and front enclosure, unrelated to the reported complaint.The observations appeared to be the characteristics of harsh impacts due to user mishandling.The top cover and front enclosure were previously replaced during service at zoll in september 2022, and they were replaced again to address the observed physical damages.Archive data review showed the occurrence of system error - 132 (internal watchdog timeout) around the reported event date, confirming the reported complaint.The autopulse platform failed initial functional testing due to "system error, out of service, revert to manual cpr" displayed upon powering up, confirming the reported complaint.The processor board was previously replaced during service at zoll in september 2022.The malfunctioning processor pca assembly was replaced to remedy the system error.Subsequently, the autopulse platform was tested with the large resuscitation test fixture (lrtf) for 30 seconds, and the platform passed the test without any fault or error.Following service, the autopulse platform was subjected to a final run-in test using the 95% large resuscitation test fixture (lrtf) with known good test batteries until discharged without any fault or error.Historical complaints were reviewed for service information related to the reported complaint, and no similar complaints were reported for the autopulse platform with serial number (b)(6).
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