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[27] Mute button:
In all modes, this button is preprogrammed to mute
outputs of device. Mute does not affect recordings
made using the Tape outputs but will affect the
signal going to the Preamp Outputs. When the unit
is in mute mode, any adjustment of the Volume
Control on the front panel [08] will release the mut-
ing, i.e. the original volume level will be resumed.
[28] d.range (dynamic range) button:
In main mode, this button is preprogrammed to
adjust dynamic range of Dolby Digital encoded
sources.
The d. range button, which can be used only in
combination with a Dolby Digital source, incremen-
tally reduces the audio track’s dynamic range in
four steps (100%, 75%, 50% and 25%) to allow for
comfortable listening under a variety of conditions.
The normal or default position is 100%. To adjust
the dynamic range, each consecutive press of the
d. range button will reduce the value in 25%
increments, as shown in the alpha-numeric
display section.
Although we usually prefer to reproduce a source’s
full dynamic range (the difference between very
loud and very soft sounds), it may occasionally be
desirable to reduce the dynamic range. For exam-
ple, when playing a movie late at night, loud explo-
sions might wake sleeping family members. Simply
turning the volume control down would probably
make a whisper in the next scene inaudible. The
d. range button solves this dilemma by progressive-
ly lowering the volume of loud peaks while
increasing the level of softer sounds.
[29] Volume Up/Down buttons:
In all modes, these buttons change the master
volume setting of the GTP-830. In all modes except
main, they can be reprogrammed with new com-
mands. The Volume control does not affect record-
ings made using the Tape and Video, or Tape, Video
3 and Video 4 outputs but will affect the signal
going to the Preamp output.
[30] Mode button:
In main mode, this is preprogrammed to cycle
through the surround modes of the GTP-830.
Pressing repeatedly will cycle through Pro Logic,
Hall, and Stereo, when available. Refer to the
Surround Mode description [12] for more
information.
[31] Play button:
In CD mode, it is preprogrammed for play with an
ADCOM CD player.
[32] Pause button:
In CD mode, it is preprogrammed to pause an
ADCOM CD player.
[33] Stop button:
In CD mode, it is preprogrammed to stop an
ADCOM CD player.
[34] Arrow buttons:
The arrow buttons allow navigation throughout the
GTP-830 OSD (On Screen Display) menus (as well
as the menus of other devices, once the commands
are learned). Please refer to section 3.1 for further
explanations on the OSD.
Left arrow: In main mode, this is preprogrammed
to step through the various choices you might wish
to select while a menu item is highlighted.
In CD mode, it is preprogrammed for audible
reverse scan with an ADCOM CD player.
Up arrow/Setup: In main mode, this is prepro-
grammed to enter the OSD menu system, as well
as scroll up to the next choice on a menu screen.
Right arrow: In main mode, this is preprogrammed
to step through the various choices you might wish
to select while a menu item is highlighted.
In CD mode, it is preprogrammed for audible
forward scan with an ADCOM CD player
Down arrow: In main mode, this is preprogrammed
to scroll down to the next choice on a menu screen.
[35] Select button:
In main mode, this is preprogrammed to enter a
selection chosen via the menu system.
[36] Direct Access Keypad (buttons “1”
through “10,” and “+10”):
In CD mode, buttons are preprogrammed as track
access commands for the ADCOM CD player.
GTP-830 DIGITAL PROCESSING TUNER/PREAMPLIFIER
22 | ADCOM OWNER’S MANUAL