NEC Projector Np4001 User Manual

8. Specifications  
129 
Note:  
Depending on the equipment, a lower baud rate may be recommended for long 
cable runs.  
PC Control Connector (DIN-9P)  
 
 
Note:  
1.  Pin 1, 4, 6 and 9 are not used. 
2. Jumper “Request to Send” and “Clear to Send” together on both ends of the 
cable to simplify t he cable connection. 
3. For long cables, it is recommended to  set communication speed within projector 
menus to 9600 bps. 
  

8. Specifications 
130
s Screen Trigger 
When the projector is powered ON the screen  trigger output sends a low voltage trigger to 
the screen controller and the screen will go down . When the projector is powered OFF the 
screen trigger stops sending a low voltage tri gger to the screen controller and the screen will 
go up. 
Note: 
To use this feature, you must turn  on the Screen Trigger function. See Screen 
Trigger on page 94 for more information.  
 
Note: 
Screen controllers are supplied and...

8. Specifications  
131 
t Operation Using HTTP Browser 
Overview
 
The use of HTTP server functions will allow  control of the projector from a web browser 
without the installation of special software. Pl ease be sure to use “Microsoft Internet Ex-
plorer 4.x” or a higher version for the web  browser. (This device uses “JavaScript” and 
“Cookies” and the browser should be set to a ccept these functions. The setting method 
will vary depending on the version of browser.  Please refer to the help files...

8. Specifications 
132
When the IP address of the projector is  192.168.73.1, access is gained to the HTTP 
server functions by specifying  http://192.168.73.1/index.html  for the address or the en-
try column of the URL. 
Configuring Network Settings 
The Network Settings screen  is displayed as follows: 
http://  /lanconf.html 
 
Domain 
Host Name: Type in a hostname. Up to 60 alphanumeric characters can be used. 
Domain Name:  Type in domain name of the network c onnected to the projector. Up to 
60...

8. Specifications  
133 
Mail 
Alert Mail: Click “Enable” to enable Alert Mail featur e. This option notifies your computer 
of an error message via e-mail when using wired LAN. The error message will be noti-
fied when the projector lamp has reached the end of its usable life or an error occurs in 
the projector. 
Senders Address:  Specify the sender’s address. Up to 60 alphanumeric and symbols 
characters can be used.  
SMTP Server Name:  Type in the SMTP server name to be connected to the projector....

8. Specifications 
134
Structure of the HTTP Server 
Once the projector is connected to a network  and configured correctly, the following 
screen is displayed through the web browser. 
http://  /index.html 
 
FUNCTION SETTING DESCRIPTION 
Power Panel  On  Off  This controls the power to the projector 
Volume Panel 
▲ – Increases the volume adjustment value 
▼  – Decreases the volume adjustment value  This controls the volume of the  
projector 
Mute Panel  Picture On – Mutes the video 
Picture Off –...

8. Specifications  
135 
FUNCTION SETTING DESCRIPTION 
Source Select Panel  Computer1 – Switches to the COMPUTER 1 IN 
connector 
Computer2 – Switches to the COMPUTER 2 IN 
connector 
Computer3 – Switches to the COMPUTER 3 IN 
connector 
Component – Switches to the COMPONENT IN 
connectors 
Video – Switches to the VIDEO IN connector 
S-Video – Switches to the S-VIDEO IN connector  This switches the input connector of the 
projector 
Projector Status Panel Refresh – Updates the panel with the latest...

8. Specifications 
136
u 15 Pin GPIO Control 
Type: 15Pin D-SUB black female type 
 
PIN NO.SHORT/OPEN FUNCTION 
14 SHORT 
OPEN  EXTERNAL CONTROL MODE ON 
EXTERNAL CONTROL MODE OFF 
5 
SHORT 
OPEN  POWER ON 
POWER OFF 
10 
SHORT 
OPEN  PICTURE MUTE ON 
PICTURE MUTE OFF 
3 
SHORT 
OPEN  SOUND MUTE ON 
SOUND MUTE OFF 
4, 8, 12, 11  11  12  8  4   
  OPEN OPEN OPEN OPEN  COMPUTER1 
  OPEN OPEN OPEN SHORT VIDEO1 
  OPEN OPEN SHORT OPEN  S-VIDEO1 
  OPEN OPEN SHORT SHORT COMPONENT 
  OPEN SHORT OPEN OPEN...

 
137 
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 
o  Troubleshooting section on page 112  of your user’s 
manual. This checklist below will help us  solve your problem more efficiently.  
Frequency of Occurrence     always    sometimes (How often?________) other (________) 
Power 
No power (POWER indicator does not light green) See 
also “Status Indicator (STATUS)”. 
Power cables...

9. Troubleshooting Check List 
138
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 installa-
tion. 
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...