58TroubleshootingWhat appears to be trouble is not always serious.Check the following points before calling a servicecenter.• For operations with the external components,refer also to the instructions supplied with theadapters used for the connections (as well asthe instructions supplied with the externalcomponents).R GeneralNo sound comes out of the speakers.• Adjust the volume to the optimum level.• Check the cords and connections.No picture is displayed on the screen.• Turn on the screen. (Page 8)The unit does not work at all.• Reset the unit. (Page 3)The remote controller* does not work.• Replace the battery.* For DDX3035BT Region 4/DDX3035 Region 4: Purchase KNA-RCDV331 separately.R Discs in generalRecordable/Rewritable discs cannot be playedback.• Insert a finalized disc.• Finalize the discs with the component which youused for recording.Tracks on the Recordable/Rewritable discscannot be skipped.• Insert a finalized disc.• Finalize the discs with the component which youused for recording.Playback does not start.• The format of files is not supported by the unit.No picture appears on the external monitor.• Connect the video cord correctly.• Select the correct input on the external monitor.R DivX /MPEG1/MPEG2/JPEG/MP3/WMA/WAV/AACDisc cannot be played back.• Record the tracks using a compliant application onthe appropriate discs. (Page 54)• Add appropriate extension codes to the filenames.Tracks are not played back as you have intendedthem to play.• Playback order may differ from the one playedback using other players.REFERENCESREFERENCES