20 En
If there is a problem with the unit, check the following list first. If you cannot resolve the problem with the suggested
solutions or if the problem is not listed below, turn off and unplug the unit, and consult the nearest authorized Yamaha dealer
or service center.
TROUBLESHOOTING
General
Problem Cause Solution
The speakers make no sound. The volume might be set to the minimum level,
or muted.
Adjust the volume level.
The source may be incorrect. Select the correct source.
Headphones are connected. Remove the headphones.
The volume of a connected external device is not
loud enough.
Raise the volume of the external device.
Sound suddenly turns off. The sleep timer may be set (+ P. 19). Turn the unit on and play the source again.
Sound is cracked/distorted or
there is abnormal noise.
Input source volume is excessive, or volume of
this unit is excessive (especially Bass).
Adjust volume with VOLUME, or adjust Bass with EQ
(+ P. 6). If an external device is playing back, lower the
volume of the external device.
The unit does not operate
properly.
The unit may have received a strong electrical
shock such as lightning or excessive static
electricity, or power supply may have dropped.
Turn off, and disconnect the power cable. Wait about 30
seconds, reconnect the power cable, and turn on.
The unit turns on but
immediately shuts off.
A digital or high-frequency
equipment produces noises.
The unit may be placed too close to the digital or
high-frequency equipment.
Place the unit farther away from the equipment.
The clock setting has been
cleared.
The unit remained unpowered for about one
week.
If the power supply is interrupted for about one week, the
time setting may be reset. If this occurs, please reset the
clock (+ P. 5 ).
Clock flashes and the unit cannot
be operated.
The CLOCK switch is in the SET position, and
the clock settings are in progress.
Set the CLOCK switch to the ON or OFF position
(+ P. 3).
Alarm does not sound. The CLOCK switch is in the OFF or SET
position.
Set the CLOCK switch to the ON position (+ P. 3 ).
The front panel display indicates
“ALARM not work” and can’t
set the alarm.
The unit turns off unexpectedly. The auto power standby function may have
operated.
This unit will turn off when 20 minutes have elapsed
without any operation being performed after stopping
playback of the USB device or the CD, or if the unit has
been on for 8 hours or more without any operation being
performed (+ P. 19 ).
Front panel display becomes dim. The front panel display’s brightness setting is set
to AUTO.
Change the brightness setting to something other than
AUTO (+ P. 6). Alternatively, ensure that the illumination
sensor (+ P. 3) is not obscured.
CD playback
Problem Cause Solution
Disc cannot be inserted. Another disc is already inserted. Unload the disc with EJECT.
You are attempting to insert a disc that cannot be
used by this unit.
Use a disc supported by the unit (+ P. 2 3) .
Some button operations do not
work.
The disc loaded into the unit may not be
compatible.
Use a disc supported by the unit (+ P. 2 3) .
Playback does not start
immediately after pressing
(stops immediately).
The disc may be dirty. Wipe the disc clean (+ P. 23 ).
The disc loaded into the unit may not be
compatible.
Use a disc supported by the unit (+ P. 2 3) .
If the unit was moved from a cold to warm place,
condensation may have formed on the disc
reading lens.
Wait for an hour or two until the unit adjusts to the room
temperature, and try again.
The front panel display indicates
“no operation”, and a disc cannot
be inserted or unloaded.
The clock/alarm/tone settings are in progress.
Alternatively, the alarm is playing.
Complete the clock/alarm/tone settings. Alternatively, stop
the alarm.
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General
Weight and Dimensions
