The reported complaint that the drive shaft of the autopulse platform (sn (b)(6)) could not be returned to the home position and the platform displays a persistent user advisory (ua) 45 (not at "home" position after power-on/restart) error message was confirmed during archive data review and functional testing.The root cause for the reported complaint was a failure of the integrated encoder gearbox, likely attributed to a failed component.During visual inspection, unrelated to the reported complaint, a cracked/ damaged top cover, holes in the load plate cover, and a damaged front enclosure were observed.The probable root cause for the observed physical damage was user mishandling.The top cover, load plate cover, and front enclosure will be replaced to address the damage.The archive data review showed multiple (ua) 45 error messages, thus, confirming the reported complaint.The autopulse platform failed the initial functional testing due to the (ua) 45 displayed upon powering on, confirming the reported complaint.The integrated encoder gearbox will be replaced to address the observed failure.In addition, the monolithic plunger and belt clip retainer were damaged due to the failed encoder gearbox and will also be replaced.Upon service completion, the console will be subjected to final functional testing to ensure that the device passes all testing criteria.Historical complaints were reviewed for service information related to the reported complaint, and there was no previous history of complaint reported for autopulse platform with sn (b)(6).
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