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Chapter 6: Using the TV’s features

Turning off the built-in speakers

You can use this feature to turn off the TV speakers when you
connect an audio system to your TV (- “Connecting a digital
audio system” and “Connecting an audio system” on page 22).

To turn off the built-in speakers:

1Press Y and open the Audio menu.
2Highlight Audio Setup and press T.
3In the Speakers field, select Off.
4To save the new settings, highlight Done and press T.
To revert to the factory defaults, highlight Reset and
press T.

To turn on the built-in speakers:

Select On in step 3 above.

Selecting the optical audio output format

You can use this feature to select the optical audio output
format when you connect a Dolby Digital decoder or other
digital audio system to the Optical Audio Out terminal on
the TV (see “Connecting a digital audio system” on page 22).

To select the optical audio output format:

1Press Y and open the Audio menu.
2Highlight Audio Setup and press T.
3In the Optical Output Format field, select either
Dolby Digital or PCM, depending on your device.
4To save the new settings, highlight Done and press T.
To revert to the factory defaults, highlight Reset and
press T.

Using the Dolby® Digital Dynamic Range

Control feature

This dynamic range control feature causes the ATSC dynamic
range to be further compressed, allowing you to switch from
ATSC to analog broadcasts at the same dynamic range.

To use the Dolby Digital Dynamic Range Control:

1Press Y and open the Audio menu.
2Highlight Audio Setup and press T.
3In the Dolby Digital Dynamic Range Control field,
select Compressed. When Standard is selected, the
audio is output with minimal compression.
4To save the new settings, highlight Done and press T.
To revert to the factory defaults, highlight Reset and
press T.
Note:
This item will be grayed out for NTSC signals, Video,
ColorStream, and PC inputs.
The Dolby Digital Dynamic Range Control will function in
relation to Optical Output Format (PCM mode).
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
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
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
42LX177_EN.book Page 66 Tuesday, May 15, 2007 1:58 PM