Hitachi 42HDT51 Operating Manual page 58

Use the functions below if your TV is connected to an amplifier/receiver with optical digital input with Dolby Digital or PCM decoder
capabilities.
Audio
Treble
Bass
Balance
SRS TruBass
Matrix Surround
Audio Source
Internal Speakers
Auto Noise Cancel
Perfect Volume
Move Move
Language
Some programs transmit more than one DTV language option. Most will have English as a default language. The
language function will allow you to select up to 4 language options (if available).
Digital
Output
This function allows you to select between Dolby
Dolby ® Digital - Select this feature if the TV is connected to an amplifier/receiver with a Dolby
will provide six independent soundtrack channels through the optical output jack (Digital Audio).
PCM - Select this feature if the TV is connected to an amplifier/receiver with a PCM only decoder; it will provide two
independent soundtrack channels through the optical output jack (Digital Audio).
*Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby
Laboratories.
DRC
Dynamic Range Compression - Use this function to compress the range of sound volume. By compressing the range
of sound volume, it is possible not only to suppress the output of loud sound at night but also to raise the volume of
low sound. This is only effective when the TV is connected via the optical out (digital audio) to an amplifier/receiver
with a Dolby
Use the CURSOR PAD
NOTE: These functions are only available when viewing digital programs.
50%
65%
L R
Medium
Off
Stereo
On
Off
Off
Return
SEL
® Digital decoder. The default setting is ON.
, to select the chosen options.
Audio
Language
Digital Output
DRC
Move Select
® Digital and PCM.
58
AUDIO
1 [English ]
Dolby Digital
Off
Return
SEL
® Digital only decoder; it