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Yamaha DSP-AZ1 Owner's Manual: Troubleshooting

Yamaha av amplifier owner's manual.
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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 in the standby mode, disconnect the power cord, and contact the nearest authorized YAMAHA dealer or
service center.
I General
Problem
This unit fails to turn on when
STANDBY/ON (or SYSTEM
POWER) is pressed, or enters in
the standby mode soon after the
power has been turned on.
On-screen display does not
appear.
No sound and/or no picture.
The sound suddenly goes off.
Only the speaker on one side can
be heard.
E-
102

TROUBLESHOOTING

Cause
The power cord is not connected or the plug is not
completely inserted.
IMPEDANCE SELECTOR on the rear panel is not
fully set to the upper or lower position.
The protection circuitry has been activated.
This unit has been exposed to a strong external electric
shock (such as lightning and strong static electricity).
The setting for the on-screen display is set to
"DISPLAY OFF".
The BLUE BACK setting under "15 DISPLAY SET"
on the SET MENU is set to "OFF", and no video
signal is input to this unit.
Incorrect input or output cable connections.
An appropriate input source has not been selected.
The speaker connections are not secure.
The main speakers to be used have not been selected
properly.
The volume is turned down.
The sound is muted.
The signals that this unit cannot reproduce such as a
CD-ROM are being input.
The output and input for the picture are connected to
different types of video jacks.
The protection circuit has been activated because of a
short circuit, etc.
The sleep timer has functioned.
The sound is muted.
Incorrect cable connections.
BALANCE is turned to the left or right end.
Remedy
Firmly connect the power cord.
Set the switch fully to the upper or lower position
when this unit is in the standby mode.
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, and start
operating.
Select the full display or short display mode (see page
33).
Set BLUE BACK to "AUTO" to always show the
OSD (see page 62).
Connect the cables properly. If the problem persists,
the cables may be defective.
Select an appropriate input source with INPUT
SELECTOR or 6CH INPUT (or the input selector
buttons) (see page 42).
Secure the connections.
Select the main speakers with SPEAKERS A and/or
B (see page 42).
Turn up the volume.
Press MUTE or any operation buttons of this unit to
cancel a mute and adjust the volume.
Play a source whose signals this unit can reproduce.
Make connections using the same type of jack
(between S VIDEO, VIDEO (composite), or
COMPONENT VIDEO jacks) for both the input and
output.
Check IMPEDANCE SELECTOR is set to the
appropriate position and then turn this unit back on.
Check the speaker wires are not touching each other
and then turn this unit back on.
Turn on the power, and play the source again.
Press MUTE or any operation buttons of this unit to
cancel a mute and adjust the volume.
Connect the cables properly. If the problem persists,
the cables may be defective.
Adjust it to the appropriate position.

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