Benq SP831 Manuel D’Utilisation

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Operation
37
Correcting picture distortion
Correcting two-dimensional keystone
Keystoning occurs when the projector is not perpendicular to the screen and is where the 
projected picture displays visible as a trapezoid shape like either of the following:
Two parallel sides (left and right, or top and bottom) but is noticeably wider on either 
side.
No parallel sides.
To correct the picture's shape, you can perform the following steps.
1.
Adjust the projection angle. Move the projector to be in front of the center of the 
screen with the base of the lens level with the top or bottom edge of the screen.
2.
If the picture is stilled distorted, or the projector is unable to be positioned as 
described above, you will need to manually correct the picture.
Using the remote control or projector
i. Press one of the Keystone/Arrow keys 
(
/ , 
/
/
/
  on  the 
remote control, or 
/ , 
/
 on 
the projector) to display the Keystone 
page.
ii. See step 
 below for further 
operation.
Using  the  OSD  menu
i. Press MENU and then press  /
 
until the Display menu is highlighted.
ii. Press   to highlight Keystone and 
press ENTER. The Keystone page 
displays.
iii. Highlight 2D Keystone and press 
ENTER. The keystone correction page 
displays.
iv. Press the key whose keystone icon is 
similar to the shape of the projected 
picture. Continue pressing the same 
key or press the other keys until you 
are satisfied with the shape.
The values on the lower portion of the 
page change while pressing. When the 
values reach their maximum or 
minimum with repeated key presses, 
the picture's shape will stop changing. 
You will not be able to change the 
picture further in that direction.
Aspect Ratio
Digital Screen Shift
Keystone
Position
Overscan Adjustment
Digital Zoom
Pan
PIP
Split Screen
PC & Component YPbPr Tuning
Display
EXIT  Back
0
0
100%
Analog RGB
ENTER
Keystone
2D Keystone
Pincushion Correction
ENTER
EXIT    Back
Keystone
EXIT   Back
Fill
0
1
0
Attachable Lens
Off