NEC GT2150 - Manual (Page 24)

E – 14
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.
REMOTE 1
PC CONTROL
REM OTE 2
SC, TRIGGER
OUT
OUT
IN
IN
PC CA RD
AC IN
DVI D IGITA L
DVI D IGITA L OUTP UT
L/MO NO
L/MO NO
RGB 2 RGB 1
VIDE O 1
VIDE O 2
S-VID EO
AUD IO O UT
R/Cr
G/Y
B/Cb
V
H/HV
ANA LOG R
L/MO NO R
L/MO NO R L/MO NO R
R
1
1
2
3
3
3
3
4
Lens hood
Lens hood cap
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
2
Completed
Hole
Hole
Side with aluminum
Dust-protective sheet
(on the projector)
Dust-protective sheet
(included with the optional lens)