102 TASCAM DR-0512–TroubleshootingIf you are having trouble with the operationof this unit, please try the following beforeseeking repair. If these measures do not solvethe problem, please contact the store where youbought the unit, an authorized distributer or aTASCAM Customer Support.Power will not turn ON.ªConfirm that the batteries are not dead.•Confirm that the batteries are installed with•the correct +/– orientation.Confirm that the AC adapter (TASCAM PS-•P515U, sold separately) is firmly connected toboth the socket and the unit.Confirm that the USB cable (if used for USB•bus power supply) is firmly connected.Confirm that the USB cable (if used for USB•bus power supply) is not connected via a USBhub.The unit does not function.ªConfirm that the• HOLD switch is not set in thedirection of the arrow.Is the unit connected to a PC with the USB•cable? (Is USB connected shown on thedisplay?)The microSD card is not recognized.ªConfirm that the microSD card is inserted•completely.Playback does not work.ªIf you are trying to play a WAV file, confirm•that the sampling frequency is supported bythis unit.If you are trying to play an MP3 file, confirm•that the bit rate is supported by this unit.The speakers do not work.ªAre headphones connected?•Is• SPEAKER set to OFF?Check the connections with the monitoring•system.Is the volume of the monitoring system•minimized?