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6. Installation and Connections

Stacking projectors

Theprojectedimagebrightnesscanbedoubledbygravitystackinguptotwoprojectorswithoutexternalsupport.This

iscalled“StackingProjection”.

2projectorscanbestackedontopofeachotherfor“Stacking”setup.

CAUTION:

Aminimumoftwopersonsarerequiredtocarrytheprojector.Otherwisetheprojectormaytumbleordrop,causing

personalinjury.

NOTE:

• Projectorswithdifferentmodelnumberscannotbegravitystacked.

Optional lenses with the same model numbers must be used for stacking projection.

• Forstackingprojectors,attachthesuppliedthreestackingholderstothetopofthelowerprojector.(→ next page)

• Itdoesnotsupportoverlayaccuracybystackedprojectors.Preciseimagesassmalltextsanddetailedgraphicscannotbeclearly

read or seen.

• Useacommerciallyavailabledistributionampliertoboththeprimary(upper)andthesecondary(lower)projectorstodistribute

signal to two outputs of the two projectors.

• Notesforstacking

- Askyourservicepersonforsettingupandadjustingprojectors.

- Setuptheprojectorsinaplaceorstructureinawaywithsufcientstrengthtosupportthecombinedweightofthetwoprojec-

tors.Thesingleprojectorwithalensweighsuptoapproximately20kg/44lbs.

- To prevent the projectors from falling, fasten them in a way to withstand earthquakes.

- Doublestackingwillcauseroomtemperaturetoincrease.Ventilatetheroomwell.

- Donotattempttostackprojectorsontheceiling.Gravitystackingcannotbedoneontheceiling.

- Warmuptheprojectorsforonehourbeforethedesiredprojectionisobtained.

- Makesurethatthepositionoftheupperprojectordoesnotexceeditsspecications.Whensettingupthetwoprojectors,

adjustable height range for the tilt feet on the upper projector is added to the total adjustable range.

- Setuptheprojectorssothattheprojectedimageshowsaslittlegeometricdistortionsaspossible.Thelensisdifferentin

geometricdistortionbetweenwide(+)andtele(−)forzoom.

- Adjustthehorizontallensshifttothelenscenter.

NEC PX602UL User Manual

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