NEC Np901w Projector User Manual

127
7. Maintenance
7.  Connect the supplied power cable, turn on the Main Power switch and turn on the projector.
8.   Finally, select the menu 
→ [R ESET] → [C LEAR  L AMP  H OURS] to reset the lamp life remaining and lamp 
usage hours.
NOTE: When you continue to use the projector for another 600 hours after the lamp has reached the end of its life, the projector 
cannot turn on and the menu is not displayed.
If this happens, press the HELP button on the remote control for 10 seco\
nds to reset the...

128
8. Appendix
 Troubleshooting
This section helps you resolve problems you may encounter while setting \
up or using the projector.
Indicator Messages
Power Indicator
Indicator Conditionp rojector ConditionNote
OffThe main power is off.–
Blinking light
Green
0.5 sec On,0.5 sec OffThe projector is getting ready to turn on.Wait for a moment.
2.5 sec On,0.5 sec OffOff Timer (Off Time) is activated.–
Orange
0.5 sec On,0.5 sec OffThe projector is cooling down.Wait for a moment.
2.5 sec On,0.5 sec OffThe...

129
8. Appendix
Common Problems & Solutions (→ “Power/Status/Lamp Indicator” on page 128)
problemCheck These Items
Does not turn on •   Check that the power cable is plugged in and that the power button on the projector cabinet or the remote control is on. (→ page 21, 22)
•
 
Ensure that the lamp cover is installed correctly. (→ page 127)
•
 
Check to see if the projector has overheated. If there is insufficient ventilation around the projector or if the 
room where you are presenting is particularly...

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8. 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 projector and notebook PC while the projector is in standby mode and before turning on 
the power to the notebook PC.
In most cases the output signal from the notebook PC is not turned on unless connected to the projector before 
being powered up.
NOTE: You can check the horizontal frequency of the current signal in the projector’s menu...

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8. Appendix
 Specifications
This section provides technical information about the projector’s per\
formance.
Model Number    NP905/NP901W
Optical
NP905NP901W
LCD Panel0.63 inch LCD with Micro Lens Array(Aspect Ratio 4:3)0.56 inch LCD with Micro Lens Array(Aspect Ratio 16:10)
Resolution1024  x  768  pixels*  up  to  UXGA  with  scaling  tech-nology (up to 1400 x 1050 @ 60 Hz on HDMI)1280 x 800 pixels* up to UXGA with scaling technol-ogy (up to 1400 x 1050 @ 60 Hz on HDMI)
Lens
Manual zoom and...

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8. Appendix
m
echanical
InstallationOrientation: Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear
Dimensions12.2"(W) x 4.9"(H) x 11.4"(D) (not including protrusions)
310 mm (W) x 125 mm (H) x 289 mm (D) (not including protrusions)\
Weight8.2 lbs/3.7 kg
EnvironmentalConsiderations
Operational Temperatures :
41° to 104°F / 5° to 40°C,(Eco mode selected automatically at 95° to 104°F/35° to 40°\
C), 20% to80% humidity (non-condensing)(Operational temperatures during use of USB...

1
IEEE802.11g
Center Frequency Range/
Operating channels
  2412 to 2462 MHz
 
1 to 11 channels
Transmission method
  OFDM method (Orthogonal Frequency Division Multiplexing method)
Data Rates
  54/48/36/24/18/12/9/6 (Mbps)
Interface
  USB 2.0 (connected to USB wireless LAN port on the projector)
Dimensions
  Width:1.1"/28 mm
  Height:0.43"/11 mm
  Length:3.03"/77 mm
Weight
  0.042 lbs/19 g
Environmental Considerations
  Operational Temperatures :
  41° to 104°F / 5° to 40°C, 20% to...

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8. Appendix
Operation  of  the  USB  Wireless  LAN  Unit  is  subjected  to  the  regulations  of  the  countries  listed  below,  and  may  be 
prohibited  to  use  outside  the  country  where  you  purchased.  If  you  need  to  use  the  projector  outside  the  country 
where you purchased, you must remove the USB Wireless LAN Unit from the \
projector.
ProductNameSupported countries and areas
NP01LM2Austria / Belgium / Bulgaria / Cyprus / Czech / Denmark / Estonia / Finland / France /...

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8. Appendix
 Cabinet Dimensions
Unit: mm (inch)
WIRELESS
WIRELESS
USBLAMPSTATUSSOURCEAUTO ADJUST3D REFORM
SELECT
VIDEO INAUDIO IN
USBLANAUDIO INHDMI INAUDIO INCOMPUTER /COMPONENT 2 INCOMPUTER /COMPONENT 1 IN
PC CONTROLMONITOR OUTAUDIO OUT
S-VIDEO INAUDIO IN
L/MONO
L/MONO
R
R
AC IN
289 (11.4)
125 (4.9)
310 (12.2)
71.4 (2.8)
72.3 (2.8)
133 (5.2) 

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 Screen Size and Projection Distance
Throw Distance and Screen Size (NP905/NP901W)
The  following  shows  the  proper  relative  positions  of  the  projector  and  screen.  Refer  to  the  table  to  determine  the 
position of installation.
8. Appendix
D
B
CProjector bottom
2.85"/72.3 mm
l ens center s creen bottoms creen center
Distance Chart
B = Vertical distance between lens center and screen center
C = Throw distance
D = Vertical distance between lens center and screen bottom (top...