NEC Np905 Projector User Manual

							
1 7
Np 905
This section should be used when considering the distance to the screen \
and the screen size.
Available projection distances are 0.73 m/29 inches for 21" screen to 10.8 m/424 inches for 300" screen, according 
to the chart.
Using the Chart
Example for 100" screen:
The projection distance is approximately 3.0 m (120") according to the\
 upper chart.
The lower chart shows that the vertical distance between the projector foot and the screen top is approximately 1.35 
m  (53").  The  projection  angle  can  be  adjusted  up  to  10°.  (The  lower  chart  shows  that  the  projector  is  placed  in  a 
horizontal position)
Throw distance
21
0 1 2 3 4 5 6 7 8 91011(m)
0
1
-1
2
3
4
5
12 3 4 5 6 7 8 91011(m)
(m)
4030
6080100120
150
180
200
240
300
Vertical distance between projector foot and screen top
Screen size(Diagonal)
(Model)
When tilted at an angle 10 in Wide
Tele
Tele
Wide
Screen center line (Wide)
Projector foot
Screen center line (Tele)
Wide
8. Appendix 
						

							
1 8
Np 901W
This section should be used when considering the distance to the screen \
and the screen size.
Available projection distances are 0.72 m/28 inches for 20" screen to 11.2 m/440 inches for 300" screen, according 
to the chart.
Using the Chart
Example for 100" screen:
The projection distance is approximately 3.0 m (120") according to the\
 upper chart.
The lower chart shows that the vertical distance between the projector foot and the screen top is approximately 1.3 
m  (52").  The  projection  angle  can  be  adjusted  up  to  10°.  (The  lower  chart  shows  that  the  projector  is  placed  in  a 
horizontal position)
20
0 1 2 3 4 5 6 7 8 9101112(m)
0
1
-1
2
3
4
5
1 2 3 4 5 6 7 89 10 1112(m)
(m)
4030
6080100120
150
180
200
240
300(Model)
Throw distance
Vertical distance between projector foot and screen top
Screen size(Diagonal)
When tilted at an angle 10 in Wide
TeleWide
Screen center line (Wide)
Screen center line (Tele)
Tele
Wide
Projector foot
8. Appendix 
						

							
1 9
Mini D-Sub 15 Pin Connector
 Pin Assignments of D-Sub COMPUTER 1/2 Input Connector
Signal Level
Video signal : 0.7Vp-p (Analog)
Sync signal : TTL level111512141365 43 211079 8
8. Appendix
  p in No.    RGB Signal (Analog)   YCbCr Signal
 
1   Red    
Cr
  2   Green or Sync on Green   
Y
  3   Blue    
Cb
  4   Ground
  5   Ground
  6   Red Ground   
Cr Ground
  7   Green Ground   
Y Ground
  8   Blue Ground   
Cb Ground
  9   No Connection
  10   Sync Signal Ground
  11   No Connection
  12   Bi-directional DATA (SDA)
  13   Horizontal Sync or Composite Sync
  14   Vertical Sync
  15   Data Clock 
						

							
140
8. Appendix
 Compatible Input Signal List
   Signal   Resolution   Frequency H.   Refresh Rate
     
( Dots )   ( kHz )   ( Hz )
D: Images above flagged with “D” are supported by digital signal\
.
NOTE: 
•  An image with higher or lower resolution than the projector’s native resolution (NP905: 1024 x 768 / NP901W: 1280 x 800) will 
be displayed with scaling technology.
•
 
Some composite sync signals may not be displayed correctly.
 
Signals other than those specified in the table above may not be displ\
ayed correctly. If this should happen, change the refresh 
rate or resolution on your PC. Refer to Display Properties help section \
of your PC for procedures. 
      NTSC     –     15.73   60.00
    PAL    
–     15.63   50.00
    PAL60    
–     15.73   60.00
    SECAM    
–     15.63   50.00
  D   VESA   640  
  480   31.47   59.94
 
D
 
IBM
 
640
 
   480   31.48   59.95
 
D
 
MAC
 
640
 
   480   35.00   66.67
 
D
 
VESA
 
640
 
   480   37.86   72.81
 
D
 
VESA
 
640
 
   480   37.50   75.00
 
D
 
IBM
 
640
 
   480   39.38   75.00
 
D
 
VESA
 
640
 
   480   43.27   85.01
 
D
 
VESA
 
800
 
   600   35.16   56.25
 
D
 
VESA
 
800
 
   600   37.88   60.32
 
D
 
VESA
 
800
 
   600   48.08   72.19
 
D
 
VESA
 
800
 
   600   46.88   75.00
 
D
 
VESA
 
800
 
   600   53.67   85.06
 
D
 
MAC
 
832
 
   624   49.72   74.55
 
D
 
VESA
 
1024
 
   768   48.36   60.00
 
D
 
VESA
 
1024
 
   768   56.48   70.07
 
D
 
MAC
 
1024
 
   768   60.24   74.93
 
D
 
VESA
 
1024
 
   768   60.02   75.03
 
D
 
VESA
 
1024
 
   768   68.68   85.00
 
D
 
VESA
 
1152
 
   864   67.50   75.00
 
D
 
SUN
 
1152
 
   900   61.80   65.95
 
D
 
VESA
 
1280
 
   960   60.00   60.00
 
D
 
VESA
 
1280
 
   1024   63.98   60.02
   
MAC
 
1280
 
   1024   69.87   65.18
 
D
 
SXGA+
 
1400
 
   1050   –   60.00
   
VESA
 
1600
 
   1200   75.00   60.00
   
VESA
 
1600
 
   1200   81.25   65.00
   
VESA
 
1600
 
   1200   87.50   70.00
   
VESA
 
1600
 
   1200   93.75   75.00
 
D
 
HDTV (1080p)
 
1920
 
   1080   67.50   60.00 Progressive
 
D
 
HDTV (1080p)
 
1920
 
   1080   56.25   50.00 Progressive
 
D
 
HDTV (1080i)(1125i)  1920    1080   33.75   60.00 Interlace
 
D
 
HDTV (1080i)(1125i)  1920    1080   28.13   50.00 Interlace
 
D
 
HDTV (720p)(750p)  1280    720   45.00   60.00 Progressive
 
D
 
HDTV (720p)  1280    720   37.50   50.00 Progressive
 
D
 
SDTV(576p)(625p)   –     31.25   50.00 Progressive
 
D 
 
SDTV (480p)(525p)    –     31.47   59.94 Progressive
   
DVD YCbCr
   
–     15.73   59.94 Interlaced
   
DVD YCbCr
   
–     15.63   50.00 Interlaced 
						

							
141
8. Appendix
 PC Control Codes and Cable Connection
PC Control Codes
Function  Code Data
POWER ON   02H   00H   00H   00H   00H   02H
POWER OFF
  02H   01H   00H   00H   00H   03H
INPUT SELECT COMPUTER 1
  02H   03H   00H   00H   02H   01H   01H   09H
INPUT SELECT COMPUTER 2
  02H   03H   00H   00H   02H   01H   02H   0AH
INPUT SELECT HDMI
  02H   03H   00H   00H   02H   01H   1AH   22H
INPUT SELECT VIDEO
  02H   03H   00H   00H   02H   01H   06H   0EH
INPUT SELECT S-VIDEO
  02H   03H   00H   00H   02H   01H   0BH   13H
INPUT SELECT VIEWER
  02H   03H   00H   00H   02H   01H   1FH   27H
PICTURE MUTE ON
  02H   10H   00H   00H   00H   12H
PICTURE MUTE OFF
  02H   11H   00H   00H   00H   13H
SOUND MUTE ON
  02H   12H   00H   00H   00H   14H
SOUND MUTE OFF
  02H   13H   00H   00H   00H   15H
ON SCREEN MUTE ON
  02H   14H   00H   00H   00H   16H
ON SCREEN MUTE OFF
  02H   15H   00H   00H   00H   17H
ASPECT RATIO (4:3 Screen)4:3   03H   10H   00H   00H   05H   18H   00H   00H   00H   00H   30H
LETTERBOX
  03H   10H   00H   00H   05H   18H   00H   00H   01H   00H   31H
WIDESCREEN
  03H   10H   00H   00H   05H   18H   00H   00H   02H   00H   32H
z OOM   03H   10H   00H   00H   05H   18H   00H   00H   03H   00H   33H
ASPECT RATIO (16:9 Screen)4:3 WINDOW   03H   10H   00H   00H   05H   18H   00H   00H   00H   00H   30H
LETTERBOX
  03H   10H   00H   00H   05H   18H   00H   00H   01H   00H   31H
WIDESCREEN
  03H   10H   00H   00H   05H   18H   00H   00H   02H   00H   32H
4:3 FILL
  03H   10H   00H   00H   05H   18H   00H   00H   04H   00H   34H
ASPECT RATIO (RGB)4:3   03H   10H   00H   00H   05H   18H   00H   00H   00H   00H   30H
16:9
  03H   10H   00H   00H   05H   18H   00H   00H   02H   00H   32H
5:4
  03H   10H   00H   00H   05H   18H   00H   00H   0BH   00H   3BH
16:10
  03H   10H   00H   00H   05H   18H   00H   00H   0CH   00H   3CH
15:9
  03H   10H   00H   00H   05H   18H   00H   00H   0DH   00H   3DH
AUTO ADJUST
  02H   0FH   00H   00H   02H   05H   00H   18H
NOTE: Contact your local dealer for a full list of PC Control Codes if n\
eeded. 
						

							
142
8. Appendix
NOTE 1: Pins 1, 4, 6 and 9 are no used.
NOTE 2: Jumper “Request to Send” and “Clear to Send” togethe\
r on both ends of the cable to simplify cable connection.
NOTE 3: For long cable runs it is recommended to set communication speed\
 within projector menus to 9600 bps.
152 43
6 798
to  gnd  of PCt o  r x d  of PCt o  t x d  of PC
t o  rts  of PC
t o C ts  of PC
PC Control Connector (D-SUB 9P)
Cable Connection
Communication Protocol
Baud rate   ..........................................   38400 bps
Data length  .......................................8 bits
Parity  ................................................No parity
Stop bit   ............................................One bit
X on/off  ............................................None
Communications procedure   .............Full duplex
NOTE: Depending on the equipment, a lower baud rate may be recommended f\
or long cable runs. 
						

							
14
8. Appendix
 Removing and Attaching the USB Wireless LAN Unit
Insert the optional USB Wireless LAN Unit into the USB Wireless LAN Unit\
 port on the rear panel of the projector.
Important
•
  Do not insert other USB devices into the USB Wireless LAN unit port.
•
  Do not insert the USB Wireless LAN unit into the USB port (Type A).
•
  The USB Wireless LAN Unit must be inserted into the USB Wireless LAN Uni\
t port in the correct direction.
 
It  cannot  be  inserted  in  the  reverse  direction.  If  the  USB  Wireless  LAN  Unit  is  inserted  in  the  reverse  direction 
with excessive force applied, the USB port may break.
•
 
Before touching the USB Wireless LAN Unit, touch a metallic object (such as a door knob or aluminum window 
frame) to discharge the static electricity from your body.
•
 
Always  insert  or  remove  the  USB  Wireless  LAN  unit  when  the  main  power  is  turned  off.  Failure  to  do  so  may 
cause projector malfunction or damage to the USB wireless LAN unit. If the projector will not work correctly, turn 
off the projector, wait 30 seconds, and turn it back on.
•
 
The blue LED on the Wireless LAN Unit flashes to show that Wireless LA\
N Unit is working.
•
 
If the Wireless LAN Unit is attached incorrectly, the blue LED will not \
light.
Removing the USB Wireless LAN Unit
1.    Press  POWER  button  to  set  the  projector  to  Stand-by  mode,  then  press  the “O  (off)”  side  of  the  main 
power switch of the projector.
 VIDEO INAUDIO IN
USBLAN
AUDIO INHDMI INAUDIO INCOMPUTER /COMPONENT 2 INCOMPUTER /COMPONENT 1 INPC CONTROLMONITOR OUTAUDIO OUT
S-VIDEO INAUDIO INL/MONOL/MONORR
AC IN
USBLAMPSTATUSSOURCEAUTO ADJUST3D REFORMSELECT
 (LAN)USB
WIRELESSWIRELESS
2.    Place the projector on a soft cloth and turn over the projector.
 
VIDEO INAUDIO IN
USBLAN
AUDIO INHDMI INAUDIO INCOMPUTER /COMPONENT 2 IN
COMPUTER /COMPONENT 1 IN
PC CONTROL
MONITOR OUTAUDIO OUT
S-VIDEO INAUDIO INL/MONOL/MONORRWIRELESSWIRELESS 
						

							
144
8. Appendix
3.   Loosen the holder screw and then remove the screw and the holder.
 VIDEO I NAUDIO IN
USBLAN
COMPUTER /COMPONENT  1 IN
MONITOR OUT
S-VIDE O INAUDIO IN
L/MONO
L/MONO
R
R
WIRELESS
WIRELESS
4.  Slowly pull out the USB Wireless LAN Unit or dummy case.
 VIDEO  INAUDIO  IN
USBLAN
COMPUTER /COMPONENT 1 IN
MONITOR  OUT
S-VIDEO INAUDIO  IN
L/MONO
L/MONO
R
RWIRELESS
WIRELESS
5. Reattach the holder if you do not use the USB Wireless LAN Unit.
 
VIDEO INAUDIO IN
USBLAN
COMPUTER /COMPONENT  1 IN
MONITOR OUT
S-VIDEO INAUDIO  IN
L/MONO
L/MONO
R
R
Inserting the USB Wireless LAN Unit
1.   Press  POWER  button  to  set  the  projector  to  Stand-by  mode,  then  press  the “O  (off)”  side  of  the  main 
power switch of the projector.
 VIDEO INAUDIO IN
USBLAN
AUDIO INHDMI INAUDIO INCOMPUTER /COMPONENT 2 INCOMPUTER /COMPONENT 1 INPC CONTROLMONITOR OUTAUDIO OUT
S-VIDEO INAUDIO INL/MONOL/M ONORR
AC IN
USBLAMPSTATUSSOURCEAUTO ADJUST3D REFORMSELECT
 (LAN)USB
WIRELESSWIRELESS 
						

							
145
8. Appendix
2.  Place the projector on a soft cloth and turn over the projector.
 
VIDEO INAUDIO IN
USBLAN
AUDIO INHDMI INAUDIO INCOMPUTER /COMPONENT 2 IN
COMPUTER /COMPONENT 1 IN
PC CONTROL
MONITOR OUTAUDIO OUT
S-VIDEO INAUDIO INL/MONOL/MONORRWIRELESSWIRELESS
3.  Loosen the holder screw and then remove the screw and the holder.
 
VIDEO  INAUDIO IN
USBLAN
COMPUTER /COMPONENT  1 IN
MONITOR OUT
S-VIDEO INAUDIO  IN
L/MONO
L/MONO
R
R
4.  Insert the USB Wireless LAN Unit.
 VIDEO  INAUDIO  IN
USBLAN
AUDIO I
COMPUTER /COMPONENT 1 INMONITOR  OUTAUDIO OU
S-VIDE O INAUDIO  IN
L/MONO
L/MONO
R
R
WIRELESS
WIRELESS
5.  Secure the holder with the screw to the projector.
NOTE: Be sure to place the catch into the groove on the USB Wireless LAN\
 Unit.
 VIDEO  INAUDIO I N
USBLAN
AUDIO INHDMI IN
AUDIO INCOMPUTER /COMPONENT 2 I N
COMPUTER /COMPONENT 1 IN
PC CONT ROL
MONITOR OUTAUDIO  OUT
S-VIDEO INAUDIO I N
L/MONO
L/MONO
R
R
WIRELESS
WIRELESS
WIRELESS
WIRELESS
groove
Catch 
						

							
14
No  image  is  displayed  from  your  PC  or  video  equipment  to  the projector.
Still  no  image  even  though  you  connect  the  projector  to  the PC first, then start the PC.
Enabling your notebook PC’s signal output to the projector.
•
  A  combination  of  function  keys  will  enable/disable  the 
external  display.  Usually,  the  combination  of  the  “Fn”  key along  with  one  of  the  12  function  keys  turns  the  external display on or off. 
No image (blue background, logo, no display).
Still no image even though you press the AUTO ADJUST but-ton.
Still no image even though you carry out [ R ESET] in the pro-jector’s menu.
Signal cable’s plug is fully inserted into the input connector
A message appears on the screen.( _____________________________________________ )
The source connected to the projector is active and available.
Still  no  image  even  though  you  adjust  the  brightness  and/or the contrast.
Input source’s resolution and frequency are supported by the projector.
9 Troubleshooting Check List
Before  contacting  your  dealer  or  service  personnel,  check  the  following  list  to  be  sure  repairs  are  needed  also  by 
referring  to  the  “Troubleshooting”  section  in  your  user’s  manual.  This  checklist  below  will  help  us  solve  your  prob-
lem more efficiently.
* Print the following pages.
Frequency of occurrence   always    sometimes (How often?_____________________)     other (__________________)
p
ower
No  power  (POWER  indicator  does  not  light  green)      See  also “Status Indicator (STATUS)”.
Power cable’s plug is fully inserted into the wall outlet.
Main power switch is pressed to the ON position.
Lamp cover is installed correctly .
Lamp  Hours  Used  (lamp  operation  hours)  was  cleared  after lamp replacement.
No  power  even  though  you  press  and  hold  the  POWER  but-ton for a minimum of 2 seconds.
Shut down during operation.
Power cable’s plug is fully inserted into the wall outlet.
Lamp cover is installed correctly .
Auto  Power  Off  is  turned  off  (only  models  with  the  Auto Power Off function).
Off Timer is turned off (only models with the Off Timer func-tion ).
PROGRAM  TIMER  is  turned  off  (only  models  with  the  Pro-gram Timer function.) 
Video and  a udio
Image is too dark.
Remains  unchanged  even  though  you  adjust  the  brightness and/or the contrast.
Image is distorted.
Image  appears  to  be  trapezoidal  (unchanged  even  though you carry out the [ K E y STONE] or [3D R EFORM] adjustment).
Parts of the image are lost.
Still  unchanged  even  though  you  press  the  AUTO  ADJUST button.
Still  unchanged  even  though  you  carry  out  [RESET]  in  the projector’s menu.
Image is shifted in the vertical or horizontal direction.
Horizontal  and  vertical  positions  are  correctly  adjusted  on  a computer signal.
Input source’s resolution and frequency are supported by the projector.
Some pixels are lost.
Image is flickering.
Still  unchanged  even  though  you  press  the  AUTO  ADJUST button.
Still  unchanged  even  though  you  carry  out  [RESET]  in  the projector’s menu.
Image shows flickering or color drift on a computer signal.
Still  unchanged  even  though  you  change  [FAN  MODE]  from [HIGH ALTITUDE] to [AUTO].
Image appears blurry or out of focus.
Still unchanged even though you checked the signal’s resolu-tion on PC and changed it to projector’s native resolution.
Still unchanged even though you adjusted the focus.
No sound.
Audio  cable  is  correctly  connected  to  the  audio  input  of  the projector.
Still unchanged even though you adjusted the volume level.
AUDIO  OUT  is  connected  to  your  audio  equipment  (only models with the AUDIO OUT connector).other
Remote control does not work.
No  obstacles  between  the  sensor  of  the  projector  and  the remote control.
Projector  is  placed  near  a  fluorescent  light  that  can  disturb the infrared remote controls.
Batteries are new and are not reversed in installation. 
If present on the remote control, projector selector switch is not used.
Buttons  on  the  projector  cabinet  do  not  work  (  only  models  with the Control Panel Lock function).
Control Panel Lock is not turned on or is disabled in the menu.
Still  unchanged  even  though  you  press  and  hold  the  EXIT button for a minimum of 10 seconds.
8. Appendix