Troubleshooting - Yamaha NS-IW280CWH Owner's Manual

Stereo receiver, speaker
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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 below do not help, set this unit to standby mode, disconnect the power cable, and then contact the
nearest authorized Yamaha dealer or service center.
■ General
Problem
This unit fails to turn
on.
No sound
The sound suddenly
goes off.
Only the speaker on
one side can be
heard.
There is a lack of bass
and no ambience.
A "humming" sound
can be heard.
The volume level
cannot be increased,
or the sound is
distorted.
20
En

TROUBLESHOOTING

Cause
The power cable is not connected or the
plug is not completely inserted.
The impedance setting of the connected
speaker is too small.
The protection circuitry has been activated
because of a short circuit, etc.
This unit has been exposed to a strong
external electric shock (such as lightning
or strong static electricity).
Incorrect input or output cable
connections.
No appropriate input source has been
selected.
The SPEAKERS A/B switches are not set
properly.
Speaker connections are not secure.
Output has been muted.
The MAX VOL or INITIAL VOLUME
setting is set too low.
The component corresponding to the
selected input source is turned off or is not
playing.
The protection circuitry has been activated
because of a short circuit, etc.
This unit has become too hot.
The SLEEP function has engaged and the
unit has entered standby mode.
The AUTO POWER STANDBY has set
this unit to standby mode.
Incorrect cable connections.
Incorrect setting for the BALANCE L/R
setting.
The + and – wires are connected in
reverse at the amplifier or the speakers.
Incorrect cable connections.
The component connected to the LINE 3
IN/OUT jacks of this unit is turned off.
Remedy
Connect the power cable firmly.
Use speaker(s) with proper speaker impedance.
Check that the speaker wires are not touching each
other and then turn the power of this unit back on.
Set this unit to standby mode, disconnect the power
cable, plug it back in after 30 seconds, then use it
normally.
Connect the cables properly. If the problem persists,
the cables may be defective.
Select an appropriate input source by pressing one of
the Input selector buttons on the remote control.
Turn on the corresponding SPEAKERS A or
SPEAKERS B.
Secure the connections.
Deactivate the mute function.
Set the setting to a higher value.
Turn the component on and make sure it is playing.
Check that the speaker wires are not touching each
other and then turn the power of this unit back on.
Make sure the openings on the top panel are not
blocked.
Cancel the sleep timer.
Change the AUTO POWER STANDBY setting to a
longer setting or OFF from the Option menu by
pressing MENU.
Connect the cables properly. If the problem persists,
the cables may be defective.
Set the BALANCE L/R setting to the appropriate
position.
Connect the speaker wires to the correct + and –
phase.
Connect the audio plugs firmly. If the problem
persists, the cables may be defective.
Turn on the power of the component.
See
page
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