ESC 350 Source (serv.man3) - JBL Audio Service Manual (repair manual). Page 13

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For proper Dolby Pro Logic
operation, a test tone 
is used to calibrate the 
volume settings of the
speakers. A noise will be

heard cycling, in order,
from the front left, center,
right, and both surround
speakers.

Using the remote control,
push “Tone.” Then adjust
the Center and Surround
levels until the volume 
of all the speakers is the 
same during the test.
Note: The test tone is 

used to calibrate the 
performance of the system.
When listening to an actual
recording, the volume level
of the surround channels is
generally much lower than
that of the front channels.

In fact, when listening to a
movie, virtually all of the
dialogue and a substantial
number of the effects are
reproduced through the
center channel.

Push “Calibrate” on the
remote control until
“Balance” appears in the
display.

Push “–” on the remote 
control to adjust the 
balance toward the left
speaker.

Push “+” on the remote 
control to adjust the balance
toward the right speaker.

Push “Calibrate” on the
remote control until “Center”
appears in the display and
the corresponding LED on
top of the display is lit.

Push “–” on the remote 
control to decrease the 
volume of the center channel.

Push “+” on the remote 
control to increase the
volume of the center
channel.

TM

+

–

+

–

Push “Calibrate” on the
remote control until “Rear”
appears in the display and
the corresponding LED on 
top of the display is lit.

Push “–” on the remote 
control to decrease the 
volume of the rear channels.

Push “+” on the remote
control to increase 
the volume of the rear
channels.

ESC350 Simply Cinema OM  9/11/98 2:06 PM  Page 16