NEC NP-PH3501QL - Page 106

80
4. Projector Adjustment and Connecting
Lens image surface adjustment
(Applicable lens units: L4K-11ZM, L4K-15ZM and L4K-20ZM)
WhenusingtheL4K-11ZM,L4K-15ZMorL4K-20ZMlensunits,performtheimagesurfaceadjustmentbefore
adjusting the lens' focus.
Adjustment procedure
1. Loosen the lock bolt.
2.
Set the dial to the value of the projection distance.
Example:Iftheprojectiondistanceis20m,setthedialtobetween15and25.
3. Tighten the lock bolt.
∞
45
25
15
12
10
7
5
m
DialLock bolt