Samsung 400UXN - Manual (Page 66)

Auto Adjustment
The values of Fine, Coarse, Position are adjusted automatically. By changing the resolution in the
control panel, the auto function is performed.
(Available in PC, BNC mode only)
Note
The direct button on the remote control is the 'AUTO' button.
MENU → , → ENTER → , → ENTER
Signal Balance
This is used to make up for the weak RGB signal transmitted by a long signal cable.
(Available in PC, BNC mode only)
Signal Balance
Selects either On or Off with the signal control.
Adjusting the LCD Display