Sanyo PDG-DHT100L Owner's Manual page 45

Keystone
This function is used to store or reset the keystone correction
when the Main On/Off Switch is pressed to Off or the AC
power cord is unplugged. Use the Point 7 8 buttons to switch
between each option.
Store. . . Keep the keystone correction even when the Main
On/Off Switch is pressed to Off or the AC power
cord is unplugged.
Reset . . Release the keystone correction when the Main On/
Off Switch is pressed to Off or the AC power cord is
unplugged.
To correct keystone distortion, press the SELECT button. The
Keystone dialog box appears. Use the Point ed7 8 buttons to
correct keystone distortion. (p.31)
Ceiling
When this function is set to "On, " the picture is top/bottom and
left/right reversed. This function is used to project the image
from a ceiling-mounted projector.
Rear
When this function is set to "On, " the picture is left/right
reversed. This function is used to project the image from the
rear of the screen.
Reset
This function returns all adjusted values to the factory default
settings. Press the SELECT button at Reset to display a
confirmation box. To reset, press the SELECT button at "Yes. "
Quit
Exit the Screen Size Adjustment Menu.
SCREEN MENU
Move the red frame pointer to a function and
press the SELECT button.
Ceiling
Rear
Video Input
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