NEC NP41 - Manual (Page 69)

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. Usng On-Screen Menu
➏ Menu Descriptions & Functions [SETUP]
[GENERAL]
Enablng Auto Keystone [AUTO KEYSTONE]
This feature allows the projector to detect its tilt and correct vertical distortion automatically.
To turn on the AUTO KEYSTONE feature, select [ON]. To adjust the KEYSTONE feature manually, select [OFF].
Correctng Vertcal Keystone Dstorton Manually [KEYSTONE]
You can correct vertical distortion manually. ( → page 25 )
TIP: When this option is highlighted, pressing the ENTER button will display its slide bar for adjustment.
Savng Vertcal Keystone Correcton [KEYSTONE SAVE]
This option enables you to save your current keystone settings.
OFF ........................ Does not save current keystone correction settings. It will return your keystone correction settings to
“zero”.
ON ......................... Saves current keystone correction settings
Saving your change once affects all sources. The changes are saved when the projector is turned off.
NOTE: When [AUTO KEYSTONE] is set to [ON], [KEYSTONE SAVE] is not available. Next time you turn on the power, the AUTO
KEYSTONE function will work and the data stored with [KEYSTONE SAVE] will be invalid.