Denon AVR-2803 Operating Instructions Manual

Also see for AVR-2803: Service manual Operating instructions Brochure & specs Control protocol Code List

Contents

Denon AVR-2803 Operating Instructions Manual Manual pdf 37 page image

37ENGLISHNOTES:• If step 3 does not work, start over from step 1.• If the microprocessor has been reset, all thebutton settings are reset to the default values(the values set upon shipment from the factory).1, 2 213 LAST FUNCTION MEMORY• This unit is equipped with a last function memory which stores the input and output setting conditions as theywere immediately before the power is switched off.This function eliminates the need to perform complicated resettings when the power is switched on.• The unit is also equipped with a back-up memory. This function provides approximately one week of memorystorage when the main unit’s power switch is off and with the power cord disconnected.14 INITIALIZATION OF THE MICROPROCESSORWhen the indication of the display is not normal or when the operation of the unit does not shows the reasonableresult, the initialization of the microprocessor is required by the following procedure.1 Switch off the unit using the main unit’s poweroperation switch.2 Hold the following FRONT SPEAKER buttonand ZONE 2 button, and turn the main unit’spower operation switch on.3 Check that the entire display is flashing with aninterval of about 1 second, and release yourfingers from the 2 buttons and themicroprocessor will be initialized.Turning on the main uni t’s power from thestandby mode without using the remotecontrol unit• Press the power switch on the main unitwhile pressing the SOURCE button on themain unit’s panel to turn on the power.15 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 and sound notproduced when power switch setto on.• Power cord not plugged insecurely.• Check the insertion of the powercord plug.• Turn the power on with the remotecontrol unit after turning thePOWER switch on.423DISPLAY lit but sound notproduced.• Speaker cords not securely connected.• Improper position of the audiofunction button.• 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 inputjacks to which digital signals arebeing input.823242523DISPLAY not lit and powerindicator is flashing rapidly.• Speaker terminals are short-circuited.• Block the ventilation holes of theset.• The unit is operating at continuoushigh power conditions and/orinadequate ventilation.• Switch power off, connect speakersproperly, then switch power backon.• Turn off the set’s power, thenventilate it well to cool it down.Once the set is cooled down, turnthe power back on.• Turn off the set’s power, thenventilate it well to cool it down.Once the set is cooled down, turnthe power back on.83, 83, 8Sound produced only from onechannel.• Incomplete connection of speakercords.• Incomplete connection ofinput/output cords.• Connect securely.• Connect securely.84 ~ 8Positions of instrumentsreversed during stereoplayback.• Reverse connections of left andright speakers or left and rightinput/output cords.• Check left and right connections. 8The on screen display is notdisplayed.• “On screen display” is set to off onthe system setup menu screen.• Set “on screen display” on thesystem setup menu screen to on.16Humming noise produced whenrecord is playing.• Ground wire of turntable notconnected properly.• Incomplete PHONO jackconnection.• TV or radio transmission antennanearby.• Connect securely.• Connect securely.• Contact your store of purchase.44—Howling noise produced whenvolume is high.• Turntable and speaker systems tooclose together.• Floor is unstable and vibrates easily.• Separate as much as possible.• Use cushions to absorb speakervibrations transmitted by floor. Ifturntable is not equipped withinsulators, use audio insulators(commonly available).——Sound is distorted.• Stylus pressure too weak.• Dust or dirt on stylus.• Cartridge defective.• Apply proper stylus pressure.• Check stylus.• Replace cartridge.———Common problems when listening to the CD, records, tapes and FM broadcasts, etc.Volume is weak.• MC cartridge being used. • Replace with MM cartridge or use ahead amplifier or step-uptransformer.4When playing recordsSystem setup screen does notappear• You are using headphones.• Mute mode is set.• Monitor TV not connected to AVR-2803.• Unplug the headphones from theheadphones jack.• Cancel the mute mode.• Connect a monitor TV.25255, 6