You may select the sound mode directly by pressing the SOUND button on the remote control.
Audio Language
Press ENTER to one of the audio language such as English/ French and Spain, but the condition is that the program system has included the language code.
Bass
Press ENTER button to select it and then use 
/ 
to increase or decrease the level of the
Treble
Press ENTER button to select it and then use 
/ 
to increase or decrease the level of the
Balance
Press ENTER button to select it and then use 
/ 
to adjust the audio output between left and right speakers.
Digital Audio Output
Press ENTER button to select the one of mode of the digital audio output such as PCM and RCW.
Auto Volume Adjust
Press ENTER button to adjust the volume automatically.
SETUP MENU OPTIONS
Press MENU on the front panel or on the remote control and then use 
/ 
to select the SETUP menu.
1.Use 
/ 
to select what you want to adjust in the SETUP menu.
2.Press ENTER button to select it and then use 
/ 
to adjust
3.When you are satisfied with your adjustment, press MENU to exit the main menu.
Tuning Band
Press ENTER button to select Air, Cable, Cable HRC, Cable IRC or Cable Auto.