Decoder Amplifier Functions - Cambridge SoundWorks DTT250 Installation And Operating Instructions Manual

Decoder Amplifier Functions

When the power is switched
"ON", the green indicator lights on
the face of the Decoder Amplifier
will sequentially light from the left
to the right. The CMSS Music light
will remain illuminated after start-
up. The indicator light for Dolby
Digital will illuminate automatically
if a Dolby Digital program is
playing.
1. ON/OFF: Switches DeskTop
Theater DTT2500 Digital power on
and off.
An indicator light signals the power
is on.
2. Master: Adjusts the volume of
the entire system.
3. Center, Subwoofer and
Surround: These controls adjust the
level of the indicated channels. Their
output level should be balanced with
the fixed output level of the Left and
Right front speakers.
14
Top Row
4. Creative Multi Speaker
Surround: CMSS processes analog
program material. Repeated presses
of this button steps through five
different operation modes.
Music: Creates a 5.1 speaker
soundfield appropriate for music
from any analog sound source.
Movie: Creates a 5.1 speaker
soundfield appropriate for movie or
game enjoyment from an analog
sound source.
FourPoint: Use this mode for DVD
games having Dolby Digital
soundtracks with Environmental
®
Audio Extensions or Microsoft
DirectSound ® 3D for real-time
positioning of sound effects.
Stereo: Use this mode when you
want to hear just stereo effects or
the stereo Dolby Digital downmix
of a DVD.
A Quick Reference Guide
is provided separately.
Consult this guide for
advice about playing
different program sources.
No lights illuminated: Mutes any
analog stereo or CMSS output. Use
this setting if you wish to play an
analog stereo signal through the
Dolby Pro Logic processor.
For more information about
Creative Multi Speaker Sur-
round, see page 17.
5. Dolby Digital indicator light:
This light turns on whenever a
Dolby Digital signal is detected at
the SPDIF input of the DTT2500
Digital. For Dolby Digital 5.1
sound reproduction, make sure only
this light is illuminated.
6. Dolby Surround: This button
cycles between Dolby Pro Logic
processing of the digital signal,
then the analog input and no Pro
Logic processing. Dolby Surround:
This button cycles between Dolby
Pro Logic processing of the digital
signal, then the analog input and no
Pro Logic processing. To decode
Dolby surround program material
at the Digital DIN input, select the
Analog Pro Logic mode.
7. Audio Mode: Use this button to
play just the left or right channels
of a stereo digital signal (PCM
from an audio CD, a Video CD or a
stereo signal from a DVD). Use
this when, for example, a Video CD
has different languages on the left
and right channels.
Repeated presses of the button
selects which channel is fed to both
the Left and Right front speakers.
LL-Left channel to both Left and
Right front speakers.
RR-Right channel program to both
Left and Right front speakers. See
Audio Mode Selection, page 17
for further information about this
feature.
8. Speaker Test: Press this button
to start the "test sound" generator.
Use this test sound to position all
the speakers and to balance their
relative output.
The test sound moves in sequence
from the left satellite, the center
speaker, the right satellite, then to
the right surround satellite, left
surround satellite and the
subwoofer. All of the indicator
lights will blink on and off while
the test sound generator is in
operation.
The test sound will operate for
three complete cycles and then stop.
You can terminate the sound at any
point by pressing the Speaker Test
button again.
First use the test sound to verify
that each speaker is operating.