Nec PX700W [42/244] Correcting keystone distortion

2. Projecting an Image (Basic Operation)

 Correcting Keystone Distortion

Whentheprojectorisnotexactlyperpendiculartothescreen,keystonedistortionoccurs.Toovercomeit,youcanuse

the“Keystone”function,adigitaltechnologythatcanadjustforkeystone-typedistortion,resultinginacrisp,square

image.

Thefollowingprocedureexplainshowtousethe[KEYSTONE]screenfromthemenutocorrecttrapezoidaldistor-

tions.

Whentheprojectorisplaceddiagonallytothescreen,

Whentheprojectorissetupatanangleinrelationtothescreen,adjusttheHorizontaloptionoftheKeystonemenu

sothatthetopandbottomofsidesoftheprojectedimageareparallel.

1. Pressthe3DREFORMbuttonontheremotecontrolortheprojec-

torcabinet.

 TheKeystonescreenwillbedisplayedonthescreen.

2. Pressthe



buttontoselect[VERTICAL]andthenusethe





sothattheleftandrightsidesoftheprojectedimageareparallel.

*Adjusttheverticalkeystonedistortion.

3. Aligntheleft(orright)sideofthescreenwiththeleft(orright)side

oftheprojectedimage.

• Usetheshortersideoftheprojectedimageasthebase.

• Intherightexample,usetheleftsideasthebase.

4. Pressthe



buttontoselect[HORIZONTAL]andthenusethe





sothatthetopandbottomsidesoftheprojectedimagearepar-

allel.

• Adjustthehorizontalkeystonedistortion.

Screenframe

Projected area

Align left side