847ENTroubleshootingTroubleshootingSymptom Probable cause ActionRecording level toolowThe microphone sensitivity is too low. Set [Mic Sense] to [High] or [Middle](☞ P.47, P.49).This could potentially be becausethe output level for the connectedexternal devices are too low.Adjust the output level for theconnected devices.Voice files are notrecorded in stereoThe connected external microphoneis monaural.When recording while an externalmonaural microphone is connected,sound will only be recorded by theL-channel.[Rec Mode] is set to a monauralrecording mode. Set [Rec Mode] to the stereorecording mode (☞ P.47, P.49).[Zoom Mic] is set to the + side. Set [Zoom Mic] to [Off] (☞ P.47, P.50).Cannot find therecorded Voice File Wrong folder. Switch to the correct folder(☞ P.22 to P.24).Noise heard duringplaybackThe recorder was shaken duringrecording. ———The recorder was placed near a cellphone or fluorescent lamp whilerecording or during playback. Move the recorder.Unable to erase thefileThe file is locked. Unlock the file (☞ P.47, P.49).The file is read-only. Unlock the file or cancel the read-onlysetting of the file on the PC.Unable to erase thefoldersThere is a file which cannot berecognized by the recorder in thefolder.Connect the recorder to your PC anderase a folder (☞ P.67, P.69).Noise is audiblethrough the recordingmonitor Acoustic feedback is occurring.When the built-in speaker amps andthe like are connected there is a riskthat audio feedback will occur whilerecording. It is recommended thatyou use earphones for the recordingmonitor.Conduct adjustments like separatingthe earphones from the microphonefurther, do not point the microphoneat the earphones, lower the volume onthe recording monitor, and so on.Unable to set indexmarks, tempmarksThe maximum number of marks hasbeen reached. Erase unnecessary marks (☞ P.35).The file is locked. Unlock the file (☞ P.47, P.49).The file is read-only. Unlock the file or cancel the read-onlysetting of the file on the PC.