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The unit fails to turn on when
STANDBY/ON is pressed, or
returns to standby mode
suddenly soon after the power
is turned on.
Hum
No Sound or no picture
No picture
No sound is coming from one
side.
The volume level cannot be
increased very much when
adjusting VOLUME.
The sound suddenly goes off.
Plug in the power cord securely (see page
24).
Set the switch completely to either position
(depending on your speakers) while this unit
is in standby mode (see page 22).
Make sure all speaker wire connections on
this unit and on all speakers are secure and
that the wire for each connection does not
touch anything other than its respective
connection.
Connect the audio plugs securely. If the
problem persists, the cords may be defective.
Connect the grounding cord of your turntable
to the GND terminal of this unit (see page
16).
Turn up the volume.
Connect the equipment correctly. If the
problem persists, the cords may be defective.
Select the appropriate input source with
INPUT SELECTOR.
Press INPUT MODE to select another input
mode
Play a source whose signals this unit can
reproduce.
Connect this unit’s S VIDEO MONITOR OUT
terminal to the TV’s S-video input terminal or
disconnect the S-video cable from the source
equipment.
Connect all cables securely. If the problem
persists, the cords may be defective.
Adjust BALANCE.
Turn VOLUME to minimum, press MUTE to
restore audio, and adjust the volume again.
Turn on the power to the equipment.
Reset the protection circuitry by turning the
unit off and on.
Cancel the SLEEP timer function.
The power cord is not plugged in or is not
completely inserted.
IMPEDANCE SELECTOR on the rear
panel is not set correctly.
The protection circuitry has been
activated.
There is a faulty cable connection.
No connection from the turntable to the
GND terminal.
The volume is turned down.
Faulty or incorrect input or output
connection.
Incorrect input source.
This unit is set to DTS input mode.
Digital signals other than PCM audio,
Dolby Digital, or DTS encoded signals are
input to this unit by playing a CD-ROM,
etc.
The source equipment is connected to this
unit using an S-video cable, but there is
no S-video connection between this unit
and your video monitor.
There is a faulty cable connection.
BALANCE is turned all the way to one
side.
MUTE is on.
The equipment connected to the TAPE/
MD OUT jacks of this unit is turned off.
The protection circuitry has been activated
because of short circuit etc.
The SLEEP timer came on.
Troubleshooting
Refer to the chart below when the DSP-AX1 does not function properly. If the problem you are experiencing is not listed below or if the
instruction below does not help, turn the power off, disconnect the power cord, and contact your dealer or the nearest Yamaha Audio
Products Service Department.
After this unit is exposed to strong external electric shock (such as lightning and large static electricity) or you mishandle the operation of
this unit, it may not function properly. In these cases, turn the power off, unplug the power cord, plug it back in after 30 seconds, and start
operating.
Problem Possible Cause What to Do
General