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Dolby 3 Stereo; Simulated, Theater, Hall; Test Tone; Dolby Pro Logic - Sherwood R-125 Operating Instructions Manual

Sherwood audio/video receiver operating instructions
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DOLBY PRO LOGIC : choose this setting to play back
movies and music (especially Laser Discs, video cassettes
and TV broadcasts with DOLBY SURROUND sound). Not
only does Dolby Pro Logic surround you with sound, it also
gives you a clear perception of the position and direction of
the sound. Make sure your 'Speaker Positioning' is correct.
(see 'INSTALLATION')
With a great number of recently made movies, the sound
track is specially encoded with the Dolby Surround mode
carrying the
DOLBY STEREO or
SURROUND trademark. The front speakers provide the
dialogue and the normal stereo effect, while the rear
speakers reproduce the surround signals. This position
provides excellent results when watching television
programs, video software, video discs or video tapes of
stereo television broadcasts encoded with Dolby Surround.
Note : in Pro Logic mode the rearspeakers are used as
"effect speakers" and may not produce sound at all times.
DOLBY 3 STEREO : Choose this setting to play back
movies and music (especially Laser Discs, video cassettes
and TV broadcasts with DOLBY SURROUND sound), when
not using the rear speakers. You get a clear perception of
the position and direction of the sound.
DOLBY 3 STEREO combines the front and rear signals so
that you can enjoy a regenerated sound field which has
comparatively more presence and a more expansive feeling
from the three front channels (front left, front right and
center speakers) than that of ordinary stereo regeneration.
SIMULATED SURROUND : The "SIMULATED" creates
effects of reverberated and reflected sound from the walls
and ceiling similar to a concert hall. These soundeffects
added to the actual sound from the source make you feel as
if you were in a more expanded space.
Choose the SIMULATED SURROUND mode if the source
sound signal is mono.
THEATER : Use this when watching a movie source that
has a stereo soundtrack to enjoy the effect of being in a
movie theater.
HALL : Hall mode works best for recorded concerts and
other music programs. In this mode, the front speakers
provide a normal stereo effect while the rear speakers
provide a reverberated sound. This reverberation helps to
simulate the sound you might hear at a live concert.
OFF : Turns off the center and rear speakers for normal
stereo operating.
Note : Dolby Pro Logic, Dolby 3 Stereo, simulated, theater,
and hall will not work properly if the signal passes through a
graphic equalizer. Please refer to your equalizer operating
instructions for guidance on switching off (or defeating) the
equalizer.
Each surround mode has programmed values for center-
mode, center and rear levels and/or for rear channel time
delay (as appropriate).
With the CENTER MODE and LEVEL buttons on the remote
control you can set other values. These values will then be
kept in the memory until they are changed again.
The various values that can be adapted in the different
surround modes are described next:
RECEIVER OPERATION (CONT'D)

DOLBY PRO LOGIC :

Press
button on the remote control.
Press the CENTER MODE button on the remote control
to select the required center channel mode :
NORMAL – If the center speaker has a low (20W) rating.
WIDE – If the center speaker has a high (same as left and
right speakers) rating.
PHANTOM – If no center speaker is installed.
Use the REAR LEVEL
DOLBY
level (related to the front level).
– REAR 0 lights up on the dispaly.
– The level will be indicated on the display : MIN, –12,
0
– The delay time of the rear channel is changed to 15, 20,
25, 30 mili seconds.
Use the CENTER LEVEL
center level.
– CENTER 0 lights up on the display.
– The level will be indicated on the display : MIN, –12,
0

DOLBY 3 STEREO

Press the
button on the remote control.
CENTER MODE : in Dolby 3 Stereo mode you can only
select NORMAL and WIDE, see above.
REAR LEVEL : adjusting the rear level is not possible in
Dolby 3 Stereo mode.
CENTER LEVEL : use the CENTER LEVEL
buttons to adjust the center level as described above.

SIMULATED, THEATER, HALL

Press the SIMULATED, THEATER, HALL respectively or
use the SURROUND MODE button on the remote control.
CENTER MODE/CENTER LEVEL is impossible in these
modes.
Use the REAR LEVEL
level (equal to the front level)
– REAR 0 lights up on the display.
– The level will be indicated on the display : MIN, –12,
0
– The delay time of the rear channel is change to 05, 10,
15, 20, 25,30 mili seconds.

TEST TONE

Use TEST TONE function on the remote control to obtain
the correct balance between the levels of the left, right,
center and rear speakers in the DOLBY PRO LOGIC and
DOLBY 3 STEREO mode.
DOLBY PRO LOGIC
Press the TEST TONE button on your remote control.
You will hear a test tone from the left (FL), center (C),
right (FR) and rear (R) speakers in turn, in a repeating
cycle.
While sitting in the usual listening position, adjust the level
of each speaker until they all sound equally loud.
Use the VOLUME control to adjust the speaker levels.
– The levels will be indicated on the display .
When you are satisfied with the levels, press the TEST
TONE button on your remote control again to turn off the
test tone.
DOLBY 3 STEREO
In the Dolby 3 Stereo mode you can adjust only the levels of
the left, right and center speakers.
Pro Logic or use the SURROUND MODE
,
buttons to adjust the rear
, +12, MAX.
,
, +12, MAX.
3 STEREO or use the SURROUND MODE
,
buttons to adjust the rear
, +12, MAX.
buttons to adjust the
,
9

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