NEC Wt615 Projector User Manual

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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...

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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 

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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....

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8
Appendix
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  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...

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...

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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...

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...

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...

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 -...

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...