68KnowledgeXD-DV series (EN/K,M,T,X,Y)/2÷ Connect properly referring to “System con-nection”.÷ Switch MUTE OFF.÷ Unplug the headphone plug.÷ Connect properly referring to “System con-nection”.÷ This is not malfunction. Press the DISPLAY/DEMO key to cancel the demonstration.÷ Adjust the present time again.÷ Adjust the present time again.÷ Adjust the present time referring to “Clockadjustment”.÷ Set the timer ON time and OFF time.÷ Execute the timer program.÷ Connect antennas.÷ Select a band.÷ Tune to the frequency of the desired sta-tion.÷ Install the outdoor antenna in an apart posi-tion from the road.÷ Switch the suspected electric appliance OFF.÷ Install the TV or the system at an increaseddistance between them.÷ Preset stations with tunable frequencies.÷ Preset stations again.÷ Check the speaker connection.÷ Set the surround speaker switch on therear of the unit to ON.÷ The speaker cords are disconnected.÷ The MUTE switch of remote control unit isswitched ON.÷ The headphone plug is inserted into thejack.÷ The speaker cords are disconnected.÷ The DEMO is set to on.÷ There was a power failure.÷ The power cord was unplugged from theoutlet.÷ The present time has not been adjusted orthere was a power failure.÷ The timer ON time and OFF time have notbeen set.÷ The timer execution was not set up.÷ The antennas have not been connected.÷ A proper broadcasting band has not beenselected.÷ The frequency of the station to be receivedis not tuned.÷ Car ignition noise.÷ Influence of an electric appliance.÷ A TV set is installed near the system.÷ The frequency of the preset station is nottunable.÷ The preset memory has been cleared be-cause the power cord has been unpluggedfor a long period.÷ The speaker connection is abnormal.÷ The surround speaker switch on the rear ofthe unit is set to OFF.What seems to be a malfunction is not always so. Before calling for service, check the following table according to the symptomof your trouble.Operation to resetThe microcomputer may fall into malfunction (impossibilityto operate, erroneous display, etc.) when the power cord isunplugged while power is ON or due to an external factor. Inthis case, execute the following procedure to reset themicrocomputer and return it to normal condition.÷ Please note that resetting the microcomputer clears thecontents stored in and returns and to condition when it leftthe factory.Sound is not produced.Sound is not produced from the leftor right speakers.Demonstration starts suddenly.The clock display is out of order.Timer operation is not possible.Radio stations cannot be received.Noise interferes.A station has been preset but it can-not be received by pressing theP.CALL key.The STANDBY indicator flashes red.Only XD-DV75/XD-DV65/XD-DV55;No sound from the surround speak-ers (option)RemedyCauseSymptomReceiver, speakers#¡¡#4(((´´@··@‚‚#$In case of difficultySet the POWE key to ON. Then press the VIDEO/AUX key while holding the TUNING MODE keydown.