NEC NP-PH3501QL - Mounting the Lens Unit

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3. Setting Up Your Projector
3-3. Mounting the Lens Unit
The lens units that can be attached to this projector are shown in the following table.
MODEL Magnifying
L2K-10F1 0.93
L4K-11ZM 1.24–1.73
L4K-15ZM 1.52–2.10
L4K-20ZM 1.98–3.34
L2K-30ZM 2.71–3.92
L2K-43ZM1 3.91–5.52
L2K-55ZM1 5.00–7.80
NOTE:
• TheotherNECoptionallensesarenotavailableonthismodel.
• Theprojectorandlensesaremadeofprecisionparts.Donotsubjectthemtoshockorexcessiveforces.
• Removethelensunitwhenmovingtheprojector.Ifnot,thelenscouldbesubjecttoshockwhiletheprojectorisbeingmoved,
damagingthelensandthelensshiftmechanism.
• Whenremovingorinstallingthelensunit,returnthepositionofthelenstothecenterbeforeturningoffthepowertotheprojector.
Ifthepositionofthelensisnotreturnedtocenter,thefrontcoverwillinterferewiththelensandthecovercannotberemovedor
installed.
• Wheninstallingorremovingthelensunit,rstconrmthatthemainpowerswitchtotheprojectorisoff,andthendisconnect
theACpowersupply.AftertheACpowersupplyhasbeendisconnected,allowtheprojectortosufcientlycoolbeforestarting
thiswork.
• Nevertouchthelenssurfacewhiletheprojectorisoperating.
• Beverycarefulnottoletdirt,grease,etc.,onthelenssurfaceandnottoscratchthelenssurface.
• Performtheseoperationsonaatsurfaceoverapieceofcloth,etc.,topreventthelensfromgettingscratched.
• Whenleavingthelensofftheprojectorforlongperiodsoftime,mountDust-proofcushionontheprojectortopreventdustor
dirtfromgettinginside.
Mounting and adjustment of optional lenses must be performed by a qualied technician.
The lens unit mounting procedure is roughly the same.
•ForL2K-30ZM,L2K-43ZM1,andL2K-55ZM1,attachthegearboxcover.
•FortheL4K-20ZM,thelenscover'sringmustberemoved.
At the same time, the image adjustment mechanism by manual besides the focus adjustment is also equipped on
theL4K-11ZM,L4K-15ZMandL4K-20ZM.