The autopulse platform (s/n (b)(4)) was returned to zoll for evaluation.The customer's reported complaint that the platform showed missing pixels in the display screen were confirmed during visual inspection but not during functional testing.The lcd screen was replaced to remedy the issue.There were no device deficiencies found during evaluation of the returned platform that could have caused or contributed to the reported complaint.Therefore, the exact root cause could not be determined.The autopulse platform is a reusable device and was manufactured on 12/29/2011.Therefore, this type of damage found is characteristic of normal wear and tear for the life of the device.After replacing the lcd screen, the platform passed all final functional testing criteria.A review of the platform archive was performed and there were no problems found in the internal log.Additionally, visual inspection showed no damages to the platform.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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