(b)(4).The device was received for evaluation.The event history log review showed no keystrokes, programming, or use related events that indicated and/or contributed to the reported issue.A service history review revealed no indication that the parts replaced during servicing caused or contributed to the reported event.A visual inspection was performed with no issues noted.Full functional testing, electrical safety testing, calibration and simulated therapy were performed.The reported condition was confirmed during start up test.The cause of the condition was determined to be the power supply.The power supply was replaced to solve the issue.Should additional relevant information become available, a supplemental report will be submitted.
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