NEC Projector Vt37 User Manual

44
6. Maintenance
F
O
CUS
SELECTL
A
M
P
S
T
A
T
U
S
P
O
W
E
RV
ID
E
OS
-
V
ID
E
OC
O
M
P
U
T
E
R
O
N
/S
T
A
N
D
 B
Y
AUTO
ADJ
.
ZOOM
This section describes the simple maintenance procedures you should follow to clean the filter and replace the lamp.

 Cleaning or Replacing the Filter
The air-filter sponge keeps dust and dirt from getting inside the projector and should be cleaned after every 100 hours
of operation (more often in dusty conditions). If the filter is dirty or clogged, your projector may...

45
6. Maintenance
3. Reinstall the new filter cover.
NOTE: Do not wash the filter with soap and water. Soap and water will damage the filter membrane. Before replacing the filter,
remove dust and dirt from the projector cabinet. Keep out dust and dirt during filter replacement.
NOTE: When you replace the lamp, it is also wise to replace the filter. The filter comes in the same package with your replacement
lamp.
 Cleaning the Cabinet and the Lens
1. Turn off the projector before cleaning.
2. Clean the...

46
6. Maintenance
2. Use a Philips screwdriver to push and release the tab.
Push up and remove the lamp cover.
CatchPhilips
screwdriver

 Replacing the Lamp
After your lamp has been operating for 3000 hours (up to 4000 hours in Eco mode) or longer, the LAMP indicator in the
cabinet will blink red and the message “The lamp has reached the end of its usable life. Please replace the lamp.”
will appear. Even though the lamp may still be working, replace it at 3000 (up to 4000 hours in Eco mode) hours to...

47
3. Loosen the two screws securing the lamp housing until the phillips screwdriver goes into a freewheeling
condition. The two screws are not removable.
Remove the lamp housing by holding it.
6. Maintenance
NOTE: There is an interlock on this case to prevent the risk of electrical shock. Do not attempt to circumvent this interlock.
4. Insert a new lamp housing until the lamp housing is plugged into the socket.
CAUTION
Do not use a lamp other than the NEC replacement lamp VT70LP.
Order this from your...

48
6. Maintenance
6. Connect the supplied power cable, turn on the Main Power switch and turn on the projector.
7. Finally, select the menu 
→ [Default] → [Clear Lamp Hour Meter] to reset the lamp usage hours.
NOTE: When the lamp exceeds 3100 hours (up to 4100 hours in Eco mode) of service, the projector cannot turn on and the menu
is not displayed.
If this happens, press the HELP button on the remote control for ten seconds to reset the lamp clock back to zero.
When the lamp time clock is reset to zero,...

49
7. Appendix

 Troubleshooting
This section helps you resolve problems you may encounter while setting up or using the projector.
Indicator Messages
Power Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightGreen
Orange
Green
Orange0.5 sec On,
0.5 sec Off
2.5 sec On,
0.5 sec Off
0.5 sec On,
0.5 sec OffThe main power is off
The projector is getting ready to turn on.
Off Timer is enabled.
The projector is cooling down.
The projector is turned on.
The projector is in...

50
7. Appendix
Common Problems & Solutions (See also Power/Status/Lamp Indicator on page 49.)
Does not turn on
Will turn off
No picture
Picture suddenly
becomes dark
Color tone or hue is
unusual
Image isn’t square to
the screen
Picture is blurred
Image is scrolling
vertically, horizontally
or both
Remote control does
not work
Indicator is lit or
blinking
Cross color in RGB
mode•Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
control is on. See...

51
7. Appendix
If there is no picture, or the picture is not displayed correctly.
•Power on process for the projector and the PC.
Be sure to connect the RGB cable between the projector and the computer before turning on the computer.
There are some notebook PCs, which do not output signal unless there is a projector or monitor connected first.
NOTE: You can check the horizontal frequency of the current signal in the projector’s menu under Information.  If it reads
“0kHz”, this means there is no signal...

52
7. Appendix
 Specifications
This section provides technical information about the VT37 Projectors performance.
Model Number VT37
Optical
LCD Panel 0.7 p-Si TFT active-matrix
Resolution 800 
 600 pixels* native, up to SXGA with Advanced AccuBlend
Lens Digital zoom and manual focus
F2.0     f=17.5 mm
Lamp 130W DC lamp (110W  Eco mode)
Image Size (Diagonal) 25 - 300 inches / 0.6 - 7.6 m
Projection Distance 1.9 - 23.92 ft / 0.58 - 7.3 m
Projection Angle 14.0° - 14.6°
Keystone Correction (Manual) +/- 30°...

53
7. Appendix
Mechanical
Installation Orientation Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear
Dimensions 11.6 (W)
3.7 (H)
10.2 (D)
294mm (W)
93mm (H)
260mm (D)
(not including protrusions)
Net Weight 6.5 lbs / 2.9 kg
Environmental Considerations Operational Temperatures : 41° to 95°F (5° to 35°C),
20% to 80% humidity (non-condensing)
Storage Temperatures : 14° to 122°F (-10° to 50°C),
20% to 80% humidity (non-condensing)
Regulations
For United States:
UL Approved (UL 60950)
Meets FCC Class B...