Denon AVR-1804 Operating Instructions Manual

Also see for AVR-1804: Specification sheet Operating instructions Operating instructions Service manual Operating instructions

38ENGLISH19 TROUBLESHOOTINGIf a problem should arise,first check the following.1. Are the connections correct ?2. Have you operated the receiver according to the Operating Instructions ?3. Are the speakers, turntable and other components operating property ?If this unit is not operating properly, check the items listed in the table below. Should the problem persist, theremay be a malfunction.Disconnect the power immediately and contact your store of purchase.Symptom Cause Measures PageDISPLAY not lit andsound not producedwhen power switchset to on.• Power cord not plugged in securely. • Check the insertion of the power cordplug.• Turn the power on with the remotecontrol unit after turning the POWERswitch on.619DISPLAY lit but soundnot produced.• Speaker cords not securely connected.• Improper position of the audio functionbutton.• Volume control set to minimum.• MUTING is on.• Digital signals not input Digital inputselected.• Connect securely.• Set to a suitable position.• Turn volume up to suitable level.• Switch off MUTING.• Input digital signals or select input jacksto which digital signals are being input.9, 1019202119DISPLAY not lit andpower indicator isflashing rapidly.• Speaker terminals are short-circuited.• Block the ventilation holes of the set.• The unit is operating at continuous highpower conditions and/or inadequateventilation.• Switch power off, connect speakersproperly, then switch power back on.• Turn off the set’s power, then ventilate itwell to cool it down.Once the set is cooled down, turn thepower back on.• Turn off the set’s power, then ventilate itwell to cool it down.Once the set is cooled down, turn thepower back on.9, 106, 96, 9Sound produced onlyfrom one channel.• Incomplete connection of speaker cords.• Incomplete connection of input/outputcords.• Connect securely.• Connect securely.9, 106 ~ 10Positions ofinstruments reversedduring stereo playback.• Reverse connections of left and rightspeakers or left and right input/outputcords.• Check left and right connections. 10Common problems when listening to the CD, records, tapes and FM broadcasts, etc.Symptom Cause Measures PageHumming noiseproduced when recordis playing.• Ground wire of turntable not connectedproperly.• Incomplete PHONO jack connection.• TV or radio transmission antenna nearby.• Connect securely.• Connect securely.• Contact your store of purchase.66—Howling noiseproduced whenvolume is high.• Turntable and speaker systems too closetogether.• Floor is unstable and vibrates easily.• Separate as much as possible.• Use cushions to absorb speakervibrations transmitted by floor. Ifturntable is not equipped with insulators,use audio insulators (commonlyavailable).——Sound is distorted.• Stylus pressure too weak.• Dust or dirt on stylus.• Cartridge defective.• Apply proper stylus pressure.• Check stylus.• Replace cartridge.———Volume is weak. • MC cartridge being used. • Replace with MM cartridge or use ahead amplifier or step-up transformer.6When playing recordsRemote control unitThis unit does notoperate properly whenremote control unit isused.• Batteries dead.• Remote control unit too far from thisunit.• Obstacle between this unit and remotecontrol unit.• Different button is being pressed.• < and > ends of battery inserted inreverse.• Replace with new batteries.• Move closer.• Remove obstacle.• Press the proper button.• Insert batteries properly.101010—10