Bose 321 GS Series II DVD home entertainment system Sold from July 2004 to present User Manual

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Placing the Acoustimass® module
• Place the Acoustimass® module within reach of the cable from the music center and an AC 
(mains) power outlet.
• Place the module at the same end of the room as the TV and the speakers (Figure 4).
• Keep the module at least 3 feet (1 meter) away from the TV to prevent the module from 
interfering with the TV screen.
Figure 4
Recommended 
Acoustimass module
placement
3 ft (1 m)...

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Making system connections
CAUTION: Do not plug the Acoustimass® module into an AC power (mains) outlet until all the 
components are connected.
Note:
If additional audio cables or longer cables are needed to make these connections, contact 
Bose Customer Service. Refer to the list of offices included in the product carton.
Connecting the Acoustimass module to the media center
Plug one end of the Acoustimass...

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2.At the other end of the speaker cable, separate the left and right speaker cords as much 
as necessary to reach each speaker (Figure 8).
Figure 8
Separating left and right 
speaker cords
Note: If you purchased a 3•2•1 
GS Series II system, the left and 
right speaker cable connectors 
will be marked with a “GS”.
3.Plug the LEFT speaker cable into the rear jack of the left speaker (Figure 9). Plug the 
RIGHT...

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Connecting the supplied antennas
The rear panel of the media center provides jacks for the AM and FM antennas included with 
your system (Figure 10). Unwind the wires for each antenna to provide the best reception.
Figure 10
Antenna connections
FM dipole 
antenna
AM loop antennaMedia center
Note:An outdoor antenna may be 
used in place of the supplied indoor 
antennas. To add an outdoor 
antenna, consult a...

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Connecting your TV to the media center
Note:If you will be using the 3•2•1 system with both a TV and a VCR, skip this section and go 
to “Connecting your TV and VCR to the media center” on page 16.
Making audio connections
Note:If your TV does not have audio output jacks, see “If your TV does not have audio output 
jacks” on page 17
. Otherwise, continue.
1.Connect one end of the supplied stereo cable to the TV...

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Connecting your TV and VCR to the media center
Note:There are two options for connecting your TV and VCR to the media center. Before you 
proceed, you must determine if your TV has audio output jacks. Consult your TV owner’s guide if 
you need assistance.
If your TV has audio output jacks
If your TV has audio output jacks, you can directly route the TV audio to the 3•2•1 home 
entertainment system (Figure 12)....

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If your TV does not have audio output jacks
If your TV does not have audio output jacks, you will need to feed audio to the 3•2•1 home 
entertainment system through a secondary source, such as a VCR. To do this, you will need 
one additional video cable, which can be purchased at your local electronics store.
1.Connect one end of the supplied stereo cable to the AUX Audio IN jacks on the rear 
panel of the...

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VCR considerations
• Some combination TV/VCR units may not work with 3•2•1 Series II home entertainment 
systems. Please refer to your TV/VCR owner’s manual for information.
• A stereo VCR is required for optimal sound performance. If your VCR has only one audio 
output and is not labeled Stereo or Hi-fi, you have a mono VCR. You will need a 
Y-adapter cable (available at electronics stores) to connect audio...

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Making component video connections (highest quality video)
Note:Component video connections are required in order to use the progressive scan feature of 
your3•2•1 system. Your TV must also support this feature. To turn on the progressive scan fea-
ture, see “Video options” on page 48.
For the highest quality video from DVDs, you may want to use a component video connection 
between the media center and the TV....

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Connecting digital audio devices
Some audio devices may feature a digital audio output for optimum sound performance. Use 
an optical digital cable or a coaxial digital cable, as appropriate, to connect this output to the 
digital input on the media center. You can purchase the required cables at a local electronics 
store.
On the media center rear panel, an optical digital cable connects to the OPTICAL jack. A...