Troubleshooting - Denon DRA-685 Mode D'emploi

ENGLISH

12 TROUBLESHOOTING

If a problem should arise,first check the following.
1. Are all connections correct ?
2. Have you operated the receiver according to the Operating Instructions ?
3. Are the speakers, turntable 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 operation switch set to on.
DISPLAY lit but sound not produced.
— —
PROTECT
Sound produced only from one channel.
Positions of instruments reversed during
stereo playback.
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.
28
• 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.
• Speaker terminals are short-circuited.
• Block the ventilation holes of the set.
display appears.
• The unit is operating at continuous high
power conditions and/or inadequate
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.
• 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.
Cause
• Check the insertion of the power cord plug.
• Turn the power on with the remote control
unit after turning the Power operation
switch on.
• Connect securely.
• Set to a suitable position.
• Turn volume up to suitable level.
• Switch off MUTING.
• 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
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.
• 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, use audio
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.
Measures Page
6
17
9, 10
18
18
22
9, 10
5
5
9, 10
6 ~ 8
6 ~ 10
6
6
–
–
–
–
–
–
6
12
12
12
–
12