Troubleshooting - Denon AVR-3805 Operating Instructions Manual

16 TROUBLESHOOTING

If a problem should arise,first check the following table.
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, there may be a malfunction.
Disconnect the power immediately and contact your store of purchase.
Symptom
DISPLAY not lit and sound not produced
when power switch set to on.
DISPLAY lit but sound not produced.
DISPLAY not lit and power indicator is
flashing rapidly.
Sound produced only from one channel.
Positions of instruments reversed during
stereo playback.
The on screen display is not displayed.
Humming noise produced when Record is
playing.
Howling noise produced when volume is
high.
Sound is distorted.
Volume is weak.
This unit does not operate properly when
remote control unit is used.
88
Cause
• Power cord not plugged in securely.
• Speaker cords not securely connected.
• Improper position of the audio function
button.
• Volume control set to minimum.
• MUTING is on.
• Digital signals not input Digital input
selected.
• Speaker terminals are short-circuited.
• Block the ventilation holes of the set.
• The unit is operating at continuous high
power conditions and/or
ventilation.
• Incomplete connection of speaker cords.
• Incomplete connection of input/output
cords.
• Reverse connections of left and right
speakers or left and right input/output
cords.
• "On screen display" is set to off on the
system setup menu screen.
• Ground wire of turntable not connected
properly.
• Incomplete PHONO jack connection.
• TV or radio transmission antenna nearby.
• Turntable and speaker systems too close
together.
• Floor is unstable and vibrates easily.
• Stylus pressure too weak.
• Dust or dirt on stylus.
• Cartridge defective.
• MC cartridge being used.
• Batteries dead.
• Remote control unit too far from this unit.
• Obstacle between this unit and remote
control unit.
• Different button is being pressed.
• < and > ends of battery inserted in reverse.
Measures
• Check the insertion of the power cord plug.
• Turn the power on with the remote control
unit after turning the POWER switch on.
• Connect securely.
• Set to a suitable position.
• Turn volume up to suitable level.
• Switch off MUTING.
• Input digital signals or select input jacks to
which digital signals are being input.
• Switch power off, connect speakers
properly, then switch power back on.
• Turn off the set's power, then ventilate it
well to cool it down.
Once the set is cooled down, turn the
power back on.
• Turn off the set's power, then ventilate it
inadequate well to cool it down.
Once the set is cooled down, turn the
power back on.
• Connect securely.
• Connect securely.
• Check left and right connections.
• Set "on screen display" on the system
setup menu screen to on.
• Connect securely.
• Connect securely.
• Contact your store of purchase.
• Separate as much as possible.
• Use cushions to absorb speaker vibrations
transmitted by floor. If turntable is not
equipped with
insulators (commonly available).
• Apply proper stylus pressure.
• Check stylus.
• Replace cartridge.
• Replace with MM cartridge or use a head
amplifier or step-up transformer.
• Replace with new batteries.
• Move closer.
• Remove obstacle.
• Press the proper button.
• Insert batteries properly.
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