Troubleshooting - Marantz CR401N User Manual

CR401N̲01 Eng 05.11.18 4:55 PM ページ22

TROUBLESHOOTING

If 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 and other components operating properly?
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
Power does not turn on • Mains cord's plug is not
when POWER plugged into wall outlet.
ON/STANDBY switch is
pressed.
There's no sound • The speaker cables are not
coming from the connected properly.
speakers?
• The volume is set at minimum.
• The CR401 is muted.
• A pair of headphones is
connected.
• The wrong input source is
selected.
• A connecting cable may be
damaged.
Sound is coming from • The other speaker's cable is
only one speaker? not connected properly.
Nothing happens when • Are the batteries dead?
remote control buttons
are pressed. • Is the remote control unit too
far away?
• Is there an obstacle between
the remote control unit and the
main unit?
• You have pressed the wrong
button.
• Batteries are not set in their
proper direction (ª and ·).
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Cause Measures
• Plug the mains cord in
properly.
• Check the speaker
connections and make sure
that none of the wires are
touching each other, other
connectors, or any metal parts.
• Turn up the volume.
• Unmute the CR401.
• Turn down the volume, then
disconnect the headphones .
• Check the input source setting.
• Check your connecting cables
for signs of damage and
replace as necessary.
• Check the speaker
connections and make sure
that none of the wires are
touching each other, other
connectors, or any metal parts.
• Replace the batteries with new
ones.
• Operate from closer to the
main unit.
• Remove the obstacle.
• Press the desired button.
• Set the batteries in the proper
direction.
Symptom
• A strong light source is
interfering with the CR401's
remote sensor.
Hissing noise is heard • Antenna cable is not properly
on FM broadcasts. connected.
• Antenna is not pointing in the
right direction.
• Radio waves are weak.
Page
Hissing or buzzing • Noise from a TV or
sound is heard on AM interference in the signals sent
broadcasts. from the broadcast station.
Booming sound • Signals transmitted over the
9
(humming) is heard in main cord are modulated by
AM broadcasts. the power source frequency.
Reception is noisy, • You're too far away from the
intermittent, and the transmitter. Or, your FM
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indicator antenna is in the wrong
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flickers? position or pointing in the
wrong direction. Or, the
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station's signal strength is
poor.
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10
The radio presets no • The power cord has not been
longer work? connected to a wall outlet, or
the power has been turned off
9
for an extended period.
The RDS (Radio Data • The current FM station does
System) doesn't seem not support RDS.
to work? • The signal strength is poor, or
4
there's too much interference.
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CD playback skips? • The CR401 is subject to
vibration.
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• The disc is dirty.
• The disc is very scratched.
4
Noise is generated. • DTS CD is being replayed.
Cause Measures
• Make sure that the CR401 is
not subjected to direct sunshine
or inverter-type fluorescent
lights. Relocate if necessary.
• Connect the leads properly.
• Point the antenna in the right
direction.
• Install an outdoor antenna.
• Turn off the TV.
• Change the position of the
loop antenna.
• Install an outdoor antenna.
• Insert the plug in the opposite
direction.
• Install an outdoor antenna.
• Switch the FM Mode to Mono.
• Adjust the position, height, and
direction of your FM antenna.
• Install an outdoor FM antenna,
preferably one with many
elements. Installing an out-
door antenna is a specialist's
job, so contact your nearest
dealer for advice.
• Preset your favourite radio
stations again. The power cord
must be plugged into a wall
outlet a few times each month
in order to preserve the presets.
• Tune into a station that
supports RDS.
• Install an outdoor FM antenna,
change the position or
direction of your outdoor FM
antenna, and keep it away
from fluorescent lights.
• Install the CR401 somewhere
free of vibration.
• Remove the disc and clean it.
• Buy a new disc.
• Do not replay DTS CD, which
is not supported by the CR401.
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