Troubleshooting; General - Yamaha M170 Owner's Manual

TROUBLESHOOTING

If there is any problem with this unit, check the following items. If you cannot solve your problem with the following
remedies or if your problem is not listed below, turn off and unplug the unit, then consult the nearest authorized
YAMAHA dealer or service center.

General

Problem
Power turns on but
immediately shuts off.
The speakers make no
sound.
Sound suddenly turns off.
Sound is too low on one
side.
The volume does not
increase or sounds are
distorted.
This unit does not operate
properly.
A digital equipment or high
frequency equipment
produces noises.
The volume does not
increase or sounds are
distorted.
Sound played on this unit
cannot be recorded with an
external recorder.
The clock setting has been
cleared.
A digital equipment or high
frequency equipment
produces noises.
32
TROUBLESHOOTING
Cause
The power cable may be connected
improperly.
The speaker cable may be shorted.
This unit may receive a strong
electrical shock such as from a
lightening bolt or excessive static
electricity.
The volume may be set to minimum
level.
The Mute function may be enabled.
The input source may be incorrect.
The cables may be connected
improperly.
The disc loaded into this unit may be
not compatible.
The Sleep Timer might be set.
The cables may be connected
improperly.
The power of the equipment
connected to this unit's output jack
may be turned off.
This unit may receive a strong
electrical shock, such as from a
lightening bolt or excessive static
electricity, or drop in power supply.
This unit may be placed close to the
digital equipment or high-frequency
equipment.
The power of the component
connected to a this unit's output jack
may be turned off.
You may be trying to make a digital
recording with an analog source, or
analog recording with a digital source.
The recording equipment may be
connected to this unit with an analog
connection.
The power to this unit may be lost
more than a week.
This unit may be placed close to the
digital equipment or high-frequency
equipment.
Solution
Make sure the power cable is plugged
into the outlet firmly.
Make sure all speaker cables are
connected properly.
Set this unit to the Standby mode, then
disconnect the power cable. Wait for
about 30 seconds, then connect the
power cable and turn on this unit.
Adjust the volume level.
Cancel the Mute function.
Select the correct input source.
Make sure all cables are connected
properly. (page 8)
Make sure you use a disc supported by
this unit.
Turn on this unit and play the source
again.
Make sure all cables are connected
properly.
Turn on the power of the equipment
connected to this unit's output jack.
Set this unit to the Standby mode, then
disconnect the power cable. Wait for
about 30 seconds, then connect the
power cable and turn on this unit.
Place this unit further away from such
equipment.
Turn on the power of the component
connected to a this unit's output jack.
Use proper audio sources.
Connect them with a digital connection.
Make sure the power cable is plugged
into outlet firmly, then set the clock
again (page 12).
Place this unit further away from such
equipment.