Field service engineer (fse) took initial call and spoke with customer who reported they were getting a pot a error and could not get the tube to extend.Fse had them put the monitors in the home position and this cleared the error and allowed user to extend the tube and make x- rays.Fse also explained the override switch to user advised them to call for service call if the issue came back.A second fse went on site, troubleshot the tube movement issue causing a monitor position error and resolved by replacing the pcb transducer amplifier.Fse tested the unit for proper operation per service checklist (b)(4).Unit passed checkout procedures and was returned to the customer for service.
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