Additional Information; Troubleshooting - Pioneer DEQ-P7650 Operation Manual

Appendix

Additional Information

Troubleshooting

Common
Symptom
Power doesnt turn on.
No functions come on.
No sounds are heard.
The volume level will not rise.
Sound is not heard over a speci-
fic speaker.
Audio/DSP
Symptom
Speakers are not available to be
adjusted.
Time alignment is not available. Listening position is not set cor-
The subwoofer is not available to
switch its phase.
Bass content is not heard.
Ocassionally no sounds are out-
put when Dolby Pro Logic B is
turned on.
Occasionally no sounds are
heard over speakers other than
the center one.
Turning dynamic range control
on has no effects.
20
En
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Cause
Cables or connectors are not cor-
rectly connected.
The fuse is blown.
Cables are not connected correctly. Connect the cables correctly.
The front, rear, left and right speak-
ers are not properly adjusted in level
balance.
The speaker size is set to OFF.
The speaker level is set too low.
The center speaker size is set to
SML or LRG whereas no center
speaker is installed.
Cause
Their size settings is at OFF.
rectly.
Their size settings is at OFF.
The subwoofer is set to OFF.
The subwoofer is set to OFF and yet
other speakers are set to OFF or
SML in size.
The center speaker setting is at SML
or LRG whereas no center speaker
is installed.
Dolby Pro Logic B is turned on.
The currently reproduced sound is
not Dolby Digital coded.
Action
Check whether the cables are plugged in cor-
rectly and firmly.
Rectify the reason for the fuse blowing, then
replace the fuse. Be very sure to install the
correct fuse with the same rating.
Adjust the relative levels between the speak-
ers correctly. (Page 8)
Make the correct size setting for the speaker.
(Page 10)
Increase the speaker level setting to get the
balance right with the other speakers. (Page
12)
Set the center speaker size to OFF. (Page 10)
Action
Make the correct size settings. (Page 10)
Set listening position correctly. (Page 7)
Make the correct size settings. (Page 10)
Set the subwoofer to ON. (Page 10)
Make the correct settings. (If no subwoofer is
installed, the front or rear speaker needs to
be set to LRG.) (Page 10)
Change the center speaker size setting to
OFF. (If the audio source is mono and Dolby
Pro Logic B is turned on, sound is heard over
the center speaker only.) (Page 10)
Turn Dolby Pro Logic B off. (If the audio
source is mono and Dolby Pro Logic B is
turned on, sound is heard over the center
speaker only.) (Page 9)
The feature is only effective on Dolby Digital
sounds. (Page 9)