Mitsubishi Electronics 838 SERIES User Manual

This setup is unnecessary if using the TV speakers 
as a center channel.  See page 27.

838 Series.  The TV’s built-in speaker array can be 
adjusted to reflect sound off the room walls to create a 
surround sound effect.  Setup can be performed either 
manually or automatically.
•  To create the surround sound effect, the room walls 

must reflect sound and not be covered with sound-
absorbent material.

•  Repeat the setup procedure if you reconfigure the 

room’s walls or furnishings.

•  Center the seating area in front of the TV and at 

least six feet away from it.

•  Arrangements that give good results:

•  If the room is an odd shape, locate the TV to take 

best advantage of wall reflections.

•  Avoid locations that may distort sound reflections.

Connecting the TV
To hear digital surround sound, the TV must be con-
nected to a digital surround sound source.  The TV can 
receive digital surround sound from:

•  Any HDMI jack
•  The 

ANT input (from some digital broadcasts)

Other stereo connections will provide Dolby Pro Logic 
surround sound.

Note:  If you have already performed Auto setup, do 

not make manual adjustments.  Doing so will 
erase all settings created during Auto setup.

Press 

MENU and go to Sound > SoundPro.

Enter the room dimensions and layout information 
requested in the screen.  To change measure-
ments, press    .

Press 

EXIT to exit and save settings.

Play some sample audio to check sound quality.  
If further adjustment is needed, use the 

Custom 

menu as described next.

Use the 

Custom menu after defining the room layout.

For a room with large areas of curtains that might affect 
sound reflection, do the following:

a.  Open the curtains fully to improve sound reflec-

tion.

b.  Set angles by performing the procedure in 

“Adjusting Beam Angles.”

c.  Close the curtains.
d.  Set levels by performing the procedure in 

From the 

Sound > SoundPro menu go to the 

CUSTOM menu.