VQT3T182828Troubleshooting guideBefore requesting service, make the following checks. If you are in doubt about some of the check points, or if theremedies indicated in the chart do not solve the problem, consult your dealer for instructions.Symptom CheckpointsBatteryCannot use a battery thatcan still be used with anotherdevice.• The unit considers the battery to be empty at the point in time when thebattery level becomes low.OperationsThe unit does not work. • Has the battery become dislodged? Remove the battery completely andthen reinsert it properly. Also try replacing the battery with a new one.• Is the unit in the hold state? Cancel hold. (➜ page 7)• The unit cannot be operated when connected to a computer.Cannot operate the unit. • Is the unit in the hold state? Cancel hold. (➜ page 7)• The unit cannot be operated when connected to a computer.RecordingMemory space is used upquicker than expected.• The length of time that recording is possible greatly differs depending onthe sound quality. (➜ page 33) Select the sound quality according to thepurpose of use. (➜ page 12)• Is there a large number of files? Organise the files. (➜ page 11)I hear a howling noise mixedwith the audio when I listenwith earphones (not supplied)during recording.• Turn down the volume. (➜ page 10)• Keep the earphones and unit away from each other.• When using an external microphone, keep the earphones and externalmicrophone away from each other.Recording ended part waythrough.• If the unit is dropped or otherwise subjected to an impact or the batterybecomes dislodged or runs out of power during recording, the recordingdata may not be able to be updated.• Has the internal memory run out of space?