Appendix; Troubleshooting - Yamaha DSP-AX620 Owner's Manual

APPENDIX

Refer to the chart below when the 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
The unit fails to turn
on when STANDBY/ON
(or 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 picture does not
appear.
The sound suddenly
goes off.
Only the speaker on
one side can be heard.

TROUBLESHOOTING

Cause
The power cord is not connected or the plug
is not completely inserted.
The IMPEDANCE SELECTOR switch on
the rear panel is not fully set to the left or
right position.
The protection circuitry has been
activated.
The setting for the on-screen display is set to
"DISPLAY OFF".
The BLUE BACK setting under "9
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.
Digital signals other than PCM audio,
Dolby Digital or DTS signal which this
unit cannot reproduce are being input to
this unit by playing a CD-ROM, etc.
The output and input for the video 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.
Remedy
Firmly connect the power cord.
Set the switch fully to the left or right position
when the 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.
Select the full display or short display mode.
Set BLUE BACK to AUTO to always show
the OSD.
Connect the cables properly. If the problem
persists, the cables may be defective.
Select an appropriate input source with
INPUT l / h or 6CH INPUT (or the input
selector buttons).
Secure the connections.
Select the main speakers with SPEAKERS A
and/or B.
Turn up the volume.
Press MUTE or any operation buttons 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 composites, S-VIDEOs, or
components) for both the input and output.
Check the IMPEDANCE SELECTOR switch
is set to the appropriate position and then turn
the unit back on.
Check the speaker wires are not touching each
other and then turn the unit back on.
Turn on the power, and play the source again.
Press MUTE or any operation buttons to
cancel a mute and adjust the volume.
Connect the cables properly. If the problem
persists, the cables may be defective.
Refer to
page
19
19
16, 17
20
37
12 – 15
24
16, 17
24
25
25
—
14, 15
19
16, 17
39
25
12 – 17
55