Troubleshooting - Denon DRA-F101 Operating Instructions Manual

ENGLISH
11

TROUBLESHOOTING

Check the following before assuming there is a problem with the set.
1. Are all connections proper ?
2. Is the set being operated as described in the operating instructions ?
3. Are the speakers and input components being operated properly ?
If the set does not seem to be operating properly, check the points listed below. If these points do not apply, the set
may be damaged. Turn off the power immediately and contact your store of purchase.
Symptom
POWER LED does not • Power supply cord is not connected.
light and no sound is
produced when POWER
switch is turned on.
• Speaker cords
connected.
POWER LED lights but no
• INPUT SELECTOR not set to proper
sound is produced.
position.
• VOLUME control turned down.
• Speaker cords not properly con-
nected.
Sound is not produced
• Input cords not properly connected.
from one side only.
• Left/right balance
adjusted.
Positions of instruments • Left and right speakers or input
inverted for stereo sources. cords inverted.
• Is the antenna cable properly
connected?
Hissing noise is heard • Is there interference from an
when an FM station is electronic device equipped with a
tuned in. microprocessor, or is the signal of
the FM station weak?
• Is there interference from a TV set,
Scratchy or hissing noise
or interference from another
is heard when an AM
broadcast station?
station is tuned in.
Humming noise is heard • Is the signal carried over the power
when an AM station is cord being modulated by the power
tuned in. supply frequency?
18
Cause Remedy
• Check that the cord is plugged in.
not properly • Connect securely.
• Set to the proper position.
• Set to an appropriate level.
• Connect securely.
• Connect securely.
improperly
• Adjust the BALANCE control.
• Check the left/right connections.
• Connect the antenna cable properly.
• Change the position
equipment or change the position or
direction of the connection cords and
antenna.
• Connect an outdoor antenna.
• Turn off the TV.
• Change the position or direction of
the AM antenna.
• Connect an outdoor antenna.
• Insert the power plug in the opposite
direction.
• Connect an outdoor antenna.
page Symptom
6, 8, 12
Booming sound produced
when playing records.
6
12
Howling produced when
12
volume is turned up while
playing records.
6
6
13
Sound is distorted.
6
5
This unit does not operate
properly when remote
of the 5, 6, 7
control unit is used.
5
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5
5
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5
Cause
• Turntable's ground wire not • Connect securely.
connected.
• Input cords not properly connected • Connect securely.
to PHONO terminals.
• Influence from a TV or other • Change the position of installation.
electrical device near the turntable.
• Turntable and speaker systems are • Move speaker systems as far away
too close. as possible.
• Floor is soft and vibrates easily. • Use cushions to absorb the
vibrations transmitted from the floor
to the speakers. If the turntable does
not include insulators, use audio
insulators, available in stores.
• Stylus pressure is too light. • Apply proper pressure.
• Dirt on tip of stylus. • Check the tip of the stylus.
• Defective cartridge. • Replace the cartridge.
• Batteries dead. • Replace with new batteries.
• Remote control unit too far from this • Move closer.
unit.
• Obstacle between this unit and • Remove obstacle.
remote control unit.
• Different button is being pressed. • Press the proper button.
• < and > ends of battery inserted in
• Insert batteries properly.
reverse.
Remedy page
6
6
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9
10
10
10
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