INTRODUCTION
The HT-D47 contains aDolby Pro Logic Surround decoder, audio/video
switcher with three AV inputs and one audio line input, plus athree-
channel amplifier. It can be connected to an existing TV, TV and VCR
combination or acombination of TV, VCR and other audio components.
When used with Dolby Surround encoded sound sources, the HT-D47
retrieves the left front, centre, right front and surround channels from
compact discs, video cassettes, laser discs and stereo TV programmed.
The built-in audio/video switcher adds extra flexibility to your existing
audio system. You can connect up to three different AV components plus
one audio-only component, such as aVCR, camcorder, laser disc player,
video game system or stereo TV to the HT-D47. When Dolby Surround
encoded programme material is played from the components connected
to the inputs of the HT-D47, you can enjoy full Dolby Pro Logic Surround
sound. If the music source is not encoded with Dolby Surround, you can
still enhance the sound by selecting one of the simulated surround modes
(Surround 1or Surround 2) to simulate the acoustics of amovie theater or
alive stage environment.
. .
What is Dolby Surround sound?
Dolby Surround sound ISamultichannel sound processing system originally
developed to enhance the soundtracks of theatrical motion pictures. The
multichannel capability enables film makers to present dialogue and
sound effects in amore dimensional manner that complements the action
occurring on the screen. For example, acar racing from screen right to
screen left is accompanied by the sound of the engine, screeching tires,
etc., moving in the same direction throughout the theater.
How does Dolby Surround sound work in the home?
Designed by Dolby Laboratories, the home version of this system utilizes
amatrix encoding scheme that combines 4separate signals (left, right,
surround, centre) into 2channels, for distribution on stereo video tapes
and laser discs. The Pro Logic surround decoder restores the original left,
right and surround channels, while adding acentre channel, which
stabilizes the action occurring at the centre of the screen. The Pro Logic
surround system recaptures the full richness and depth of aDolby-
encoded film, for enjoyment in the comfort of your own home.
To achieve the best sound performance, select music sources which have
the DOI Dow SURROUWi mmark.
Manufactured under license from Dolby Laboratories Licensing Corpo-
ration.
DOLBY, the double-D symbol DO and “PRO LOGIC” are trademarks of
Dolby Laboratories Licensing Corporation.
CONNECTIONS
Note: Speaker connections
Do not connect the mains lead to an AC outlet until all connections
have been made. Connect one end of the centre speaker lead to the “CENTER” SPEAKERS
terminals and the other end to the centre speaker.
The unit is not disconnected from the mains unless the mains lead is Connect the surround speaker leads to the “SURROUND SPEAKERS
terminals.
unplugged from the AC outlet. Note:
When connecting the speakers, make sure that (+) and (-) polarities are
matched. Otherwise, the sound may appear to be lacking in bass and
stability.
Connect the red and black speaker wires to the red (+) and black (-)
terminals respectively.
2entre and surround speaker connections
SX-CE47 SX-SR47 SX-SR47
Centre speaker Right surround Left surround
speaker speaker
r1
L=-
Red
Black ~1 To an AC outlet
The followina paqes contain examples of some typical combinations of audio and video components
Refer to the ;ppr;pr[ate pages for”instructfons O; ‘how to use the HT-D47 with the equipment you have.
For use with astereo TV, VCR and audio system, see Example 1 on page 5.
For use with an audio component system with atape monitor function, see Example 2 on page 5.
For use with astereo TV alone, see Example 3 on page 6.
For use with astereo TV and VCR, see Example 4 on page 6.
For examples on how to connect other audio/video components to the HT-D47, see Examples 5 and 6 on page 6 and back cover
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