Review of product historical data did not identify any adverse trends or abnormal complaint activity.A field service representative (fsr) inspected the instrument and did not find any obvious trace of the sparks.For precaution, the fsr replaced the cpu and the pre-amplifier boards.The boards shorted after being installed.The fsr noticed that while the instrument was running and the instrument was slightly turned, it would shutdown immediately.The 70w switching adapter and the boards were replaced.The replacements resolved the issue and the analyzer performed as expected.Repeated requests (more than 3 times) for the returned parts were unsuccessful.Due to the lack of returned parts, the definitive cause of the issue could not be verified.Labeling was reviewed and found to be adequate.Based on the available information, no product deficiency was identified.
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