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Chapter 2: Connecting your TV
Connecting a digital audio system
The TV’s DIGITAL AUDIO OUT terminal outputs a Dolby
®
*
Digital or 2-channel down-mixed PCM (pulse-code
modulation) signal for use with an external Dolby
®
Digital
decoder or other external audio system with optical audio
input.
You will need:
• optical audio cable (Use an optical audio cable that has the
larger “TosLink” connector and not the smaller “mini-
optical” connector.)
To control the audio:
1 Turn on the TV and the digital audio device.
2 Press Y on the TV’s remote control and open the
Audio menu.
3 Highlight Audio Setup and press T.
4 In the Optical Output Format field, select either
Dolby Digital or PCM, depending on your device
(
- “Selecting the optical audio output format” on
page 66).
Note:
• Some audio systems may not be compatible with Dolby
Digital bitstream signals. Older audio systems that are not
compatible with standard optical out signals may not work
properly, creating a high noise level that may damage
speakers or headphones. THIS DAMAGE IS NOT COVERED
BY YOUR WARRANTY.
• The DIGITAL AUDIO OUT terminal may not output some
digital audio sources because of copy restrictions.
* Manufactured under license from Dolby Laboratories.
Dolby, Pro Logic, and the double-D symbol are registered
trademarks of Dolby Laboratories.
Connecting an audio system
This connection allows you to use external speakers with an
external analog audio amplifier to adjust the sound level.
You will need:
• standard audio cables
To control the audio:
1 Turn on the TV and the stereo amplifier.
2 Turn off the TV’s built-in speakers (- page 66).
Note: To hear sound when using an external audio amplifier,
the volume of both the TV and the amplifier must be set to a
reasonable listening level.
LINE IN
Optical
Audio IN
LR
Dolby Digital decoder or
other digital audio system
TV lower back panel
Audio
Audio Settings
Advanced Audio Settings
Audio Setup
Digital Audio Selector
Done
Audio Setup
Language
Reset
MTS Stereo
English
Speakers
On
Dolby Digital
Optical Output Format
HDMI 1 Audio
PC Audio No
Auto
Dynamic Range Control
Compressed
Dolby Digital
LINE IN
LR
Analog audio amplifier
TV upper back panel
42LX177_EN.book Page 22 Tuesday, May 15, 2007 1:58 PM