AudioControl 7.1 Channel THX Ultra 2 Theater Processor, Manual

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Maestro
tm
Phone 425-775-8461 • Fax 425-778-3166
®
Troubleshooting
Section
7-3
Cannot select Dolby Digital or DTS decoding mode
ü
The Maestro can only decode formats encoded onto the source.
Normally these are marked on the packaging or liner notes of the
material.
ü
Verify that the correct format is selected in the Start menu of the
DVD.
ü
Verify that the digital input from the source is properly connected to
the Maestro.
ü
Verify that the digital output of the source is enabled. Some DVD
players have a setup menu that can only be accessed if there is no
disk in the player.
Hum on analog inputs
ü
Verify that all the two channel analog audio cables are connected
properly.
ü
If the hum only occurs on one source, try a different set of connect-
ing cables.
ü
If the hum occurs on a source with an external connection such as
an antenna or cable TV, try disconnecting that input. If the hum
disappears, put a ground isolator on that connection.
ü
Try switching the ground lift switch on the back panel of the
Maestro.
No Zone 2 audio when playing a DTS encoded video
ü
Most DVD players cannot output a stereo analog version of the
soundtrack while playing a DTS encoded disk. If you want to watch
the movie in the second zone, select the Dolby Digital soundtrack on
the disk.
Unable to adjust the Bass and Treble controls
ü
The Bass and Treble tone controls are defeated while in THX surround
modes.