Date of event and d4: udi section are unknown, no information has been provided to date.Device evaluation: one device was received for investigation.Visual inspection found the device was received with broken a reflux plug, discolored pole clamp and some chips out of the paint on the bottom of the unit.Functional testing confirmed the complaint; the display would come on for a second and then go blank.Root cause was listed as physical impact causing a bad printed circuit board (pcb) and missing stand offs behind the board.A manufacturing device history report (dhr) review was not performed because the device is beyond a year from its manufacture date and there was no indication of a manufacturing defect during the investigation.Service history review identified this device has not been in for service previously.Replaced the printed circuit board (pcb), pole clamp, and the reflux plug.Performed preventative maintenance and calibration.Device passed functional testing after the completed repairs.
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