Optional Lens Installation - NEC GT2150 User Manual

Optional Lens Installation

This section describes how to install the lens.
Before installation
* Determine the optional lens to be used to obtain a desired projection distance. There are four optional lenses available:
GT10RL (Fixed short throw lens)
GT19ZL, GT13ZL and GT34ZL (Zoom lens)
* Press the power button (ON/STAND BY) on the projector or POWER OFF button on the remote control, wait three minutes for the cooling fan to stop, then
disconnect the power cable.
Check that the projector has cooled off sufficiently before proceeding.
CAUTION
* The projector and lens contain high-precision parts. Do not induce shock to the projector or the lens.
* Do not touch the lens surface. Doing so can degrade the optical performance.
Preparation: Tools needed for installation:
A hexagonal driver and dust-protective sheets are supplied with the optional lens.
1. Remove the lens hood cap and lens hood.
1 Press and hold the catches on both ends of the lens hood cap, and 2 then remove it.
3 Loosen the 4 screws on the lens hood using the hexagonal driver until the hexagonal driver goes into a freewheeling condition and 4 remove
the lens hood. The 4 screws are not removable.
Lens hood
Lens hood cap
1
2
2. Remove the dust-protective sheet and replace with the new one.
1 Remove the dust-protective sheet on the back of the lens hood. 2 Replace it with the dust-protective sheet included with the optional lens.
Place the dust-protective sheet with the two holes side up while warping it. Be careful not to fold the sheet.
1
P C
C A
R D
IN
P C IN
C O
N T
R O
L
R E
M O
3 T E
O U 2
T
O U
T
R E
M O
T E
1
S C
, T
R IG
G E
R
A C
IN
3
3
4
3
1
Dust-protective sheet
(on the projector)
Hole
Side with aluminum
E – 14
D VI
D IG
IT AL
L/ M
O N
O
D VI R
D IG
IT AL
O UT
PU T
L/ M
O N
O
AN AL
R
O G
R G
B 2
R G
B 1
R /C
r
VI D G /Y
EO
1
B/ C
b
VI D
EO H /H
2 L/ M V
O N
O
R
V
L/ M
O N
O
R
L/ M
S- VI O N
D EO O
R
AU D
IO O
U T
Dust-protective sheet
(included with the optional lens)
Hole
2
Completed