Fujitsu ECLIPSE CD8445 Owner's Manual page 144

How to operate the Sound Adjustment Mode
Rear speaker position selection (Rear SP)
You can select the rear speaker installation location, allowing you to
select the optimum time alignment settings automatically.
Turn the [SEL] button to select Rear SP.
The selected item will be highlighted.
Press the [SEL] button.
The mode will change to rear speaker position setting mode.
Turn the [SEL] button to select the setting item.
When the button is turned, the setting item changes in the
following order and the selected item is highlighted.
Door Others
Press the [SEL] button.
The selected settings will take effect.
Press the [RTN] button.
Other time alignment items can be set at this time.
Press the [RTN] button.
At this time, other adjustments can also be made in advance
mode.
Press the [SOUND] or [RTN] button to exit sound
adjustment mode.
[SOUND] button
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[SEL] button
[RTN] button