Troubleshooting - Denon DRA-F100 Mode D'emploi

ENGLISH
12

TROUBLESHOOTING

Check the following once more before assuming there is a problem with the system.
1. Are connections proper ?
2. Is the system being operated as explained in the operating instructions ?
If the system does not seem to be operating properly, check as shown on the table below. If none of these checks apply
to the problem, the system may be malfunctioning. Disconnect the power cord immediately and contact your store of
purchase.
Symptom
Power does not turn on • Power cord is not plugged into a power
when power switch is outlet.
pressed.
• VOLUME control is turned down.
No sound is produced from
• Headphones are connected.
the speakers.
• Speaker cords are not securely con-
nected.
No treble sound is • Speaker polarities (< and >) are
produced, or the position of inverted.
the instruments is unclear.
A source other than the • Function is not properly set.
desired one is heard.
• Antenna direction is poor.
Hissing sound is heard in
• Signals from the broadcast station are
FM programs.
weak.
• Noise from a TV or interference from a
broadcast station.
Hissing sound is heard in
AM programs.
• Signals on the power cord are being
Humming sound is heard in modulated by the power source
AM programs. frequency.
• Disc is loaded upside-down.
Total number of tracks not
• Disc is dirty.
displayed when disc is
• Disc is not of the specified type.
loaded.
Nothing happens when • Disc is loaded upside-down.
oper-ating buttons are • Foreign object on disc tray.
pressed.
Disc stops in the middle of • Disc is dirty.
a track and will not play • Disc is scratched.
properly.
• Dirt, fingerprints, spittle, etc. on disc.
• Disc is scratched.
Sound is broken.
• Player is in an unstable place and
vibrates strongly.
• Signals on the power cord are being
Humming sound is heard
modulated by the power source
when disc is played.
frequency.
20
Cause Countermeasure
• Plug the power cord securely into an
outlet.
• Set the control to an appropriate
position.
• Disconnect the headphones.
• Connect securely.
• Connect the speaker cords properly.
• Set the desired function using the
FUNCTION button.
• Change the direction of the antenna.
• Install an outdoor antenna.
• Turn the TV off.
• Change the direction of the loop
antenna.
• Install an outdoor antenna.
• Insert the power cord in the opposite
direction.
• Install an outdoor antenna.
• Reload the disc.
• Clean the disc.
• Replace with a disc of the specified
type.
• Reload the disc.
• Remove the disc and the foreign
object.
• Clean the disc.
• Replace with an unscratched disc.
• Clean the disc.
• Replace with an unscratched disc.
• Place the player in a stable place with
no vibrations.
• Insert the power cord in the opposite
direction.
• Protector circuit
The DRA-F100 is equipped with a high speed protector circuit.
This circuit protects internal parts from being damaged by strong currents generated in the set should the set be
operated when the speaker terminals are incompletely connected or short-circuited.
If this protector circuit is activated, a relay sound is produced, the output to the speakers is interrupted, and the function
and power LEDs flash to indicate that there is a problem. If this should happen, unplug the power cord, check the
speaker connections, then plug in the power cord and turn the power back on. After several seconds, a relay sound is
heard and the set starts operating properly.
Page
• The set may not operate properly due to such external influences as lightning or static electricity. If this happens, either
turn off the power with the receiver's SYSTEM power operation switch or unplug the power cord, wait approximately 5
6
seconds, then plug the power cord back in.
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7
6
6
7
5
5
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5
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5
15
19
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15
15
19
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19
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