It was reported that the programming wand was malfunctioning and was unable to perform interrogations.The 9v batteries had been previously replaced in both programming wands prior to the reported event and the green light was confirmed to stay on for longer than 25 seconds.The handheld device was unplugged when performing the interrogations and the connections between the programming system components were secure.The interrogations only occur in two rooms in the clinic and interrogations in these rooms have been previous successful; therefore, emi was not suspected to be the issue.The programming system was returned to the manufacturer for analysis.The programming wand and software flashcard performed according to functional specifications.During the analysis, it was identified that the handheld was unable to advance past the screen alignment utility.The cause for the display anomaly is associated with resistance values being higher than expected in the touch screen circuitry.No further anomalies associated with the handheld performance were identified during the analysis.
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