20
En
Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or
if the instructions given below do not help, turn off the power to the unit, disconnect the power plug from the AC outlet,
and contact an authorized Yamaha dealer or service center.
General
TROUBLESHOOTING
Problem
Cause
What to Do
Power does not turn on.
When the power is turned on, it
turns off immediately.
The unit does not operate correctly.
The power cord is not connected correctly.
Insert the power plug firmly into the AC outlet.
The unit cannot be operated.
Electric shock (such as a lightning strike or
excessive static electricity) or power supply
voltage drop has caused the internal
microcomputer to freeze.
Hold down the unit’s rear panel
A
(STANDBY/ON) button for ten seconds or
longer to restart the unit.
(If this does not solve the problem, disconnect
the power cord from the AC outlet, wait
approximately 30 seconds, and then plug it in
once again.)
The power suddenly turns off
during use.
The protection circuit has operated to turn off
the power because the internal temperature of
the unit has risen.
Wait for the temperature to cool
(approximately one hour), make sure that there
is sufficient space around the unit and that the
unit is not covered by a cloth etc., and then turn
on the power again.
The unit does not operate correctly. External electric shock (such as a lightning
strike or excessive static electricity) or power
supply voltage drop has caused the internal
microcomputer to freeze.
Disconnect the power cord from the AC outlet,
wait approximately 30 seconds, and then plug
it in once again.
No sound.
Low-frequency sound is not output
or is not loud enough.
A source with little low-frequency sound is
being played back.
Play back a source that contains low-frequency
sound.
The sound is being affected by a standing
wave.
Try changing the position or the angle of this
unit.
Low-frequency input signal is absent because
of settings on the amp.
Change the amp’s settings.
If using a network connection
The volume of the MusicCast CONTROLLER
app or of the Pairing Master is set to the
minimum (0). Alternatively, headphones are
connected to the Pairing Master.
Raise the volume by operating the MusicCast
CONTROLLER app or the Pairing Master.
You can also use this unit’s GAIN knob to
manually make fine adjustments to the volume.
The network connection is not correct.
Check the connection.
The playback device is not selected correctly.
Operate the MusicCast CONTROLLER app or
the Pairing Master to re-select the input source
that you want to play back.
If using an analog connection
The volume of this unit is set to the minimum
(0).
Use this unit’s GAIN knob to adjust the
volume.
The connection is not correct. Alternatively,
the connection is faulty.
Check the connection.
The power does not turn on
automatically when the source
begins playing.
Since INPUT is set to ANALOG, the unit is not
operating in linkage with the Pairing Master.
Turn on the power manually.
Low-frequency input signal is absent because
of settings on the amp.
Change the amp’s settings.
Because there was no network connection for
an extended time, the unit entered eco standby
mode.
Turn on the power manually.
Noise is output from this unit or
from an electronic device located
nearby.
A digital device or a high-frequency device is
located near this unit.
Move this unit and the corresponding device
farther apart.
