The customer reported that the transmitter functions intermittently and is excessively hot when in use.Device turns off by itself and when batteries are changed the problem stays the same.When it does function, the waveform is very distorted.The device was returned to nihon kohden, evaluated, and the reported issue was confirmed.There was sign of corrosion on the battery contact in the battery housing of rear case assembly.Some kind of sticky residue in the socket of center case and had scratches on lcd screen cover.Cleaned the unit and replaced parts to meet manufacturer's specification.The device returned by the customer was not sent back after repair as nihon kohden exchanged the device with another transmitter.Nihon kohden will submit a supplemental report in accordance with 21 cfr section 803.56 when additional information becomes available.
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