Troubleshooting - Yamaha RX-V757 Mode D'emploi

TROUBLESHOOTING

Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below
or if the instruction below does not help, set this unit to the standby mode, disconnect the power cord, and contact the
nearest authorized YAMAHA dealer or service center.
■ General
Problem
This unit fails to turn
on when STANDBY/
ON (or SYSTEM
POWER) is pressed,
or enters the standby
mode soon after the
power has been
turned on.
On-screen display
does not appear.
No sound
No picture
86
TROUBLESHOOTING
Cause
The power cord is not connected or the
plug is not completely inserted.
The impedance setting is incorrect.
The protection circuitry has been
activated.
This unit has been exposed to a strong
external electric shock (such as lightning
or strong static electricity).
The setting for the on-screen display is set
to "DISPLAY OFF".
"GRAY BACK" in SET MENU is set to
OFF, and no video signal is currently
being received.
Incorrect input or output cable
connections.
The optimizer microphone is connected.
The input mode is set to DTS or
ANALOG.
No appropriate input source has been
selected.
Speaker connections are not secure.
The front speakers to be used have not
been selected properly.
The volume is turned down.
The sound is muted.
The input mode is set to ANALOG while
playing a source encoded with a DTS
signal.
Signals this unit cannot reproduce are
being received from a source component,
such as a CD-ROM.
The output and input for the picture are
connected to different types of video
jacks.
Remedy
Connect the power cord firmly.
Set the impedance to match your speakers.
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.
Set this unit in the standby mode, disconnect the
power cord, plug it back in after 30 seconds, then use
it normally.
Select the full display or short display mode.
Set "GRAY BACK" to AUTO to always show the
OSD.
Connect the cables properly. If the problem persists,
the cables may be defective.
Disconnect the optimizer microphone.
Select AUTO.
Select an appropriate input source with INPUT,
MULTI CH INPUT (or MULTI CH IN on the remote
control) or the input selector buttons.
Secure the connections.
Select the front speakers with SPEAKERS A and/or
B.
Turn up the volume.
Press MUTE or any operation button of this unit to
resume audio output, then adjust the volume.
Set the input mode to AUTO or DTS.
Play a source whose signals can be reproduced by this
unit.
Turn on the video conversion function.
Refer to
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