NEC Wt610 Projector User Manual

							134
7. Maintenance
 Replacing the Lamp
After your lamp has been operating for 2000 hours (up to 4000 hours : Eco mode) or longer, the Lamp indicator in the
cabinet will blink red and the message will appear. Even though the lamp may still be working, replace it at 2000 hours
(up to 4000 hours : Eco mode) to maintain optimal projector performance.
CAUTION
•DO NOT TOUCH THE LAMP immediately after it has been used. It will be extremely hot. Turn the projector off,
wait 90 seconds, turn off the main power switch, and then disconnect the power cable. Allow at least one hour
for the lamp to cool before handling.
•DO NOT REMOVE ANY SCREWS except the lamp cover screw and two lamp case screws. You could receive
an electric shock.
•Do not break the glass on the lamp housing.
Keep finger prints off the glass surface on the lamp housing. Leaving finger prints in the glass surface might
cause an unwanted shadow and poor picture quality.
•The projector will turn off and go into standby mode after 2100 hours (up to 4100 hours : Eco mode) of service.
If this happens, be sure to replace the lamp. If you continue to use the lamp after 2000 hours (up to 4000 hours :
Eco mode) of use, the lamp bulb may shatter, and pieces of glass may be scattered in the lamp housing. Do not
touch them as the pieces of glass may cause injury.
If this happens, contact your NEC dealer for lamp replacement.
To replace the lamp:
1. Loosen the lamp cover screw until the screwdriver goes into a freewheeling condition and remove the
lamp cover. The lamp cover screw is not removable.
2. Loosen the two screws securing the lamp housing until the screwdriver goes into a freewheeling
condition. The two screws are not removable. 
						

							135
7. Maintenance
3. Remove the lamp housing by pulling out the handle.
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 (WT61LP).
5. Secure it in place with the two screws.
Be sure to tighten the screws.
Interlock 
						

							136
7. Maintenance
6. Reattach the lamp cover.
7. Tighten the lamp cover screw.
Be sure to tighten the screw.
8. After you install a new lamp, select the menu [Reset] 
→ [Clear Lamp Hour Meter] to clear the Remaining
Lamp Time and the Lamp Hour Meter.
NOTE: When the lamp exceeds 2100 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 a minimum of 10 seconds while in
standby mode. When the lamp time clock is reset to zero, the LAMP indicator goes out. 
						

							137
8
Appendix
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

  Troubleshooting ...................................................... 138
  Specifications ......................................................... 142
  Cabinet Dimensions ............................................... 144
  Pin Assignments of D-Sub COMPUTER Input
Connector ............................................................ 145
  Compatible Input Signal List ................................... 146
  PC Control Codes and Cable Connection .............. 147
  Using Software Keyboard ....................................... 148
  Troubleshooting Check List ..................................... 149 
						

							138
8. 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 activated.
The projector is cooling down.
The projector is turned on.
The projector is in Normal standby or
Power-saving standby mode.–
Wait for a moment.
–
Wait for a moment.
–
–
STATUS Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightRed
Green
Orange
Orange
Red
Green1 cycle (0.5 sec On,
2.5 sec Off)
2 cycle (0.5 sec On,
0.5 sec Of)
3 cycle (0.5 sec On,
0.5 sec Off)
4 cycle (0.5 sec On,
0.5 sec Off)
6 cycle (0.5 sec On,
0.5 sec Off)
1 cycle(0.5 sec On,
2.5 sec Off)Normal
Lamp cover error
Temperature error
Temperature error due to dust
Power error
Fan error
Lamp error
Re-firing the lamp (The projector is cool-
ing down.)
Network conflict
Cabinet button is locked
A hand or an object blocks the light path.
The projector is in Normal standby mode.–
Replace the lamp cover correctly.
(Page 136)
The projector is overheated. Move
the projector to a cooler location.
Remove dust in the light path.
Power unit will not work correctly.
Fans will not work correctly.
Lamp fails to light. Wait a full
minute and then turn on again.
The projector is re-firing. Wait for a
moment.
Network will not work correctly.
You have pressed cabinet button
when Cabinet Button is locked.
(Page 105)
Remove it from the light path.
–
LAMP Indicator
Indicator Condition
Projector Condition Note
Off
Blinking light
Steady lightNormal
Lamp has reached its end of life. Lamp
replacement message will be displayed.
Lamp has been used beyond its limit. The
projector will not turn on until the lamp is
replaced.
Lamp mode is set to Eco mode Red
Red
Green–
Replace the lamp.
(Page 134)
Replace the lamp.
(Page 134)
– 
						

							139
8. Appendix
Common Problems & Solutions (See also Power/Status/Lamp Indicator on page 138.)
Does not turn on
Will turn off
No picture
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•Check that the power cable is plugged in and that the power button on the projector cabinet or the remote
control is on. See pages 29 and 31.
•Ensure that the lamp cover is installed correctly. See page 136.
•Check to see if the projector has overheated or the lamp usage exceeds 2100 hours (up to 4100 hours : Eco
mode). If there is insufficient ventilation around the projector or if the room where you’re presenting is par-
ticularly warm, move the projector to a cooler location.
• If you turn on the projector immediately after the lamp is turned off or when the temperature is high, the fans
run without displaying an image for some time and then the projector will display the image. Wait for a
moment.
•The lamp may fail to light. Wait a full minute and then turn on the power again.
•The lamp has reached the end of its usable life. Replace the lamp. See page 134.
After replacing the lamp, press and hold the HELP button on the remote control for a minimum of 10 seconds
to clear the lamp usage time. This will allow you to turn on the projector.
•Ensure that the Power Management is off. See page 120.
•Use the SOURCE button on the projector cabinet or the COMPUTER, VIDEO or VIEWER button on the remote
control to select your source. See page 40.
•Ensure your cables are connected properly.
•Use menus to adjust the brightness and contrast. See page 88.
•Open the mirror cover. See page 6.
•Reset the settings or adjustments to factory preset levels using the Reset in the Menu. See page 129.
•Enter your registered keyword if the Security function is enabled. See page 60.
•When using with a notebook PC, be sure to connect between the projector and the notebook PC before turning
on the power to the notebook PC. In most cases signal cannot be output from RGB output unless the notebook
PC is turned on after connecting with the projector.
*If the screen goes blank while using your remote control, it may be the result of the computers screen-
saver or power management software.
*If you accidentally hit the POWER button on the remote control, wait 90 seconds and then press the POWER
button again to resume.
•See also the next page.
•Check if an appropriate color is selected in Wall Color. If so, select an appropriate option. See page 89.
•Adjust Hue in Adjust. See page 89.
•Reposition the projector to improve its angle to the screen. See page 33.
•Use the 3DReform function to correct the trapezoid distortion. See page 99.
•Adjust the focus. See page 35.
•Reposition the projector to improve its angle to the screen. See page 33.
•Ensure that the distance between the projector and screen is within the adjustment range of the lens. See page
16.
•Condensation may form on the mirror if the projector is cold, brought into a warm place and is then turned on.
Should this happen, let the projector stand until there is no condensation on the mirror.
•Use the SOURCE button on the projector cabinet or the COMPUTER, VIDEO or VIEWER button on the remote
control to select your source (Video, S-Video, Computer, Viewer or LAN). See page 40.
•Adjust the computer image manually with the “Clock”/“Phase” in “Adjust” → “Image Options”. See page 95.
•Install new batteries. See page 12.
•Make sure there are no obstacles between you and the projector.
•Stand within 22 feet (7 m) of the projector. See page 12.
•See the POWER/STATUS/LAMP Indicator on page 138.
Problem Check These  Items 
						

							140
8. Appendix
Vertical stripes in RGB
mode
USB mouse does not
work
Electronic pen does
not work (WT615 only)•Press the AUTO ADJUST button on the projector cabinet or the AUTO ADJ. button on the remote control. See
page 41.
•Adjust the computer image manually with the “Clock”/“Phase” in “Adjust” → “Image Options”. See page 95.
•Make sure that your USB mouse is properly connected to the projector.
The projector may not support some brands of a USB mouse.
•Check if you meet the requirements listed on page 13.
•Check if you have performed the pen calibration. When using the electronic pen for the first time, you need to
do so. See page 45.
•Make sure that you do not use the electronic pen in the following conditions. See page 18.
-Near a device such as a CRT monitor or a TV set.
-In a room with the ceiling and walls made of metal which is prone to reflect sound waves.
-In a noisy place or a place where loud sounds can be heard
-In direct sunlight or near an inverter fluorescent lamp.
-Near an air conditioner or air blower
•Make sure that you do not use two or more electronic pens at the same time in the same room. See page 18.
•Make sure that you do not use the electronic pens with two or more projectors at the same time in the same
room. See page 18.
•Check if you performed Pincushion correction, Cornerstone correction or Keystone correction. The electronic
pen will not work when you performed Cornerstone correction or Keystone correction. See page 18.
•Check if the battery has run down. If so, replace it with a new battery.
Problem Check These  Items
For more information contact your dealer. 
						

							141
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 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 being output from the computer. See page 127 or go to next step.
•Enabling the computer’s external display.
Displaying an image on the notebook PC’s screen does not necessarily mean it outputs a signal to the projec-
tor.  When using a PC compatible laptop, 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 gets the external display to come
on or off.  For example, NEC laptops use Fn + F3, while Dell laptops use Fn + F8 key combinations to toggle
through external display selections.
•Non-standard signal output from the computer
If the output signal from a notebook PC is not an industry standard, the projected image may not be displayed
correctly. Should this happen, deactivate the notebook PC’s LCD screen when the projector display is in use.
Each notebook PC has a different way of deactivating/reactivating the local LCD screens as described in the
previous step. Refer to your computer’s documentation for detailed information.
•Image displayed is incorrect when using a Macintosh
When using a Macintosh with the projector, set the DIPswitch of the Mac adapter (not supplied with the projec-
tor) according to your resolution. After setting, restart your Macintosh for the changes to take affect.
For setting display modes other than those supported by your Macintosh and the projector, changing the DIP
switch on a Mac adapter may bounce an image slightly or may display nothing. Should this happen, set the DIP
switch to the 13” fixed mode and then restart your Macintosh. After that, restore the DIP switches to a
displayable mode and then restart the Macintosh again.
NOTE: A Video Adapter cable manufactured by Apple Computer is needed for a PowerBook which does not have a mini D-Sub
15-pin connector.
•Mirroring on a PowerBook
*When using the projector with a Macintosh PowerBook, output may not be set to 1024 x 768 unless “mirror-
ing” is off on your PowerBook. Refer to owner’s manual supplied with your Macintosh computer for mirroring.
•Folders or icons are hidden on the Macintosh screen
Folders or icons may not be seen on the screen. Should this happen, select [View] ->[Arrange] from the Apple
menu and arrange icons. 
						

							142
8. Appendix

 Specifications
This section provides technical information about the WT615/WT610 DLP™ Projectors performance.
Model Number WT615/WT610
Optical
DMD™ 0.7 Single Chip Digital Micromirror Device (DMD™), aspect ratio 4:3
Resolution 1024 
 768 pixels* up to UXGA with Advanced AccuBlend
Mirror Aspherical mirror 
 4
Lamp 275 W DC standard (210W Eco mode)
Image Size 40 - 100 (1.0 - 2.5 m) diagonal,
40 - 80 (1.0 - 2.0 m) with electronic pen
Projection Distance
2.52 - 25.94 / 64 - 659 mm (2.52 - 18.15 / 64 - 461 mm with electronic pen)
Projection Angle 55°
Electrical
Inputs 1 RGB (Mini D-Sub 15p), 1 DVI-I (HDCP** supported), 1 S-Video (Mini
DIN 4p), 1 Video, 1 PC Card, 2 Stereo Mini Audio, 1 (L/R) RCA Audio,
1 PC Control (Mini DIN 8p), 1 Remote Control
Outputs 1 RGB (Mini D-Sub 15p), 1 Stereo Mini Audio
USB Port 1 A Type, 1 B Type
Video  Compatibility NTSC, NTSC4.43, PAL, PAL-60, PAL-N, PAL-M, SECAM, 1080i, 720p,
576p, 576i, 480p, 480i (w/optional cable)
Scan Rate Horizontal: 15 kHz to 100 kHz (RGB: 24 kHz or over)
Vertical: 48 Hz to 120 Hz
Video Bandwidth RGB: 100 MHz (-3dB)
Pixel Clock Freq Less than 135 MHz
Color Reproduction 16.7 million colors simultaneously, Full color
Horizontal Resolution NTSC / NTSC4.43/PAL / YCbCr: 540 TV lines
SECAM: 300 TV lines
RGB: 1024 dots (H) 
 768 dots (V)
External Control PC CONTROL (Mini DIN 8 pin), IR, LAN (optional), USB
Sync Compatibility Separate Sync / Composite Sync / Sync on G
Built-in Speakers 1W 
 2 (Stereo)
Power Requirement 100 - 240V AC, 50/60Hz
Input Current 3.9 - 1.7A
Power Consumption 370W in Lamp Normal mode
300W in Lamp Eco mode
12W in Normal Standby mode
0.6W in Power-saving Standby mode
* Effective pixels are more than 99.99%.
** What is HDCP/HDCP technology?
HDCP is an acronym for High-bandwidth Digital Content Protection. High bandwidth Digital Content
Protection (HDCP) is a system for preventing illegal copying of video data sent over a Digital Visual
Interface (DVI).
If you are unable to view material via the DVI input, this does not necessarily mean the projector is not
functioning properly. With the implementation of HDCP, there may be cases in which certain content is
protected with HDCP and might not be displayed due to the decision/intention of the HDCP community
(Digital Content Protection, LLC). 
						

							143
8. Appendix
Mechanical
Installation Orientation: Desktop/Front, Desktop/Rear, Ceiling/Front, Ceiling/Rear
Dimensions 15.0 (W) 
 12.5 (H) 
 12.3 (D) (with the mirror cover open)
15.0 (W) 
 8.9 (H) 
 11.7 (D) (with the mirror cover closed)
380 mm (W) 
 318 mm (H) 
 313 mm (D) (with the mirror cover open)
380 mm (W) 
 227 mm (H) 
 296 mm (D) (with the mirror cover closed)
Net Weight 14.1 lbs/6.4 kg
Environmental Considerations
Operational Temperatures  : 41° to 95°F (5° to 35°C), 20% to 80% humidity
(non-condensing)
(Operational temperature for electronic pen: 59° to 95°F (15° to 35°C)
Storage Temperatures  : 14° to 122°F (-10° to 50°C), 20% to 80% humidity
(non-condensing)
Regulations UL/C-UL Approved (UL 60950, CSA 60950)
Meets DOC Canada Class B requirements
Meets FCC Class B requirements
Meets AS/NZS CISPR.22 Class B
Meets EMC Directive (EN55022, EN55024, EN61000-3-2, EN61000-3-3)
Meets Low Voltage Directive (EN60950, TÜV GS Approved)
For additional information visit:
US : http://www.necvisualsystems.com
Europe : http://www.neceurope.com
Global : http://www.nec-pj.com
Digital Light Processing and DLP are trademarks of Texas Instruments.
The specifications are subject to change without notice.