System Configuration
With the correct delay time figures for
your listening room calculated, first make
certain that the unit is in the Dolby Pro
Logic mode by pressing the Surround
Mode
button Ò or Dolby Surround
Mode
buttons ` until the Pro Logic
indicator C is illuminated.
Press the Select button j to begin the
adjustment process. The Information
Display
F
will show the current delay
setting, such as REAR - 15mS. If
adjustment is required, immediately
press the Delay button g on the
remote to change the setting until it is
closest to the desired time. Within five
seconds the display will return to normal
readout and the setting will be entered.
The Dolby Digital mode also provides a
separate setting for the center channel
delay mode, since the discrete nature
of Dolby Digital signals makes the
location of the center channel speaker
more critical. To set the delay for the
center channel, measure the distance
from the preferred listening position in
the center of the room to both the center
channel speaker and either the left or
right speaker.
If the distances are equal, no further
adjustment is required, and the center
delay should be set to zero. If the
distance to the front speakers is greater
than the distance to the center speaker
you may wish to reposition the speakers
by moving the front left/right speakers
closer to the listening position or the
center speaker further away from the
listening position.
If repositioning of the speakers is not
possible, adjust the center delay time
so that you add one millisecond of center
channel delay for each foot that the dis-
tance to the center speaker lags behind
the front speakers. For example, if the
front left/right speakers are each 10 feet
from the listening position and the center
channel speaker is 8 feet away, the delay
is figured as 10-8=2, suggesting an
optimal center delay of 2 milliseconds.
To change the delay settings for Dolby
Digital operation, first calculate the
correct timings as outlined above. Next,
make certain that the AVR55 is in the
Dolby Digital mode by pressing the
Dolby Digital/AC-3 button Ûzon
the front panel or remote. Make certain
that the Dolby Digital Indicator B
is illuminated.
Press the
Select button j and note
that the Information Display
F
will
show the settings for both the center and
rear/surround delay as
C-0mS R-10mS.
The center channel delay figure will
blink, indicating that you may change
the setting.
Press the
Delay button g to change
the center delay time to the desired
setting. When the appropriate number
is shown press the
Select button j
once so that the number for rear/
surround delay time on the right side
of the display blinks.
Use the Delay button g to change
the rear/surround delay to the desired
setting.
When both settings are correct, press the
Select button j again and note that
the display will stop blinking. After a few
seconds the display will return to normal
operation and the settings will be entered
to memory.
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