Optoma Projector Ep1691 User Manual

 
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Appendices 
Replacing the Projection Lamp 
The projection lamp should be replaced when it burns out. It should only be replaced with a certified 
replacement part, which you can order from your local dealer.  
Important: 
1. The lamp contains a certain amount of mercury and should be disposed of according to local or-
dinance regulations. 
2. Avoid touching the glass surface of the new lamp, doing so may shorten its operation life. 
 
Warning: 
Be sure to turn off and unplug the...

 
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2.  Remove the two 
screws from the lamp 
module (A). 
3.  Lift the module handle 
up (B). 
 
 
  

 
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4.  Pull firmly on the 
module handle to re-
move the lamp 
module. 
 
 
5.  Reverse steps 1 to 5 to replace the new lamp module. 
  

 
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Resetting the Lamp 
After replacing the lamp, you should reset the lamp hour counter to zero. Refer to the following: 
1.  Press the Menu button to open 
the Image menu. 
2.  Press  to navigate to the 
OPTIONS menu. 
3.  Press  to navigate to Lamp 
Setting and then press Enter. 
4.  Navigate down to Lamp Reset 
and then press  or Enter. 
 
 
5.  A Confirm Lamp Reset message 
displays. Select Yes to confirm 
the lamp reset. 
  

 
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Cleaning the Projector 
Cleaning the projector to remove dust and gr ime will help ensure trouble-free operation.  
Warning: 
1. Be sure to turn off and unplug the projector at  least an hour before cleaning. Failure to do so 
could result in a severe burn. 
2. Use only a dampened cloth when cleaning. Do not  allow water to enter the ventilation openings 
on the projector.  
3. If a little water gets into the projector interi or while cleaning, leave unplugged in a well-ventilated...

 
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Common problems and solutions 
These guidelines provide tips to deal with problems you may encounter while using the projector. If 
the problem remains unsolved, cont act your dealer for assistance. 
Often after time spent troubleshooting, the problem is traced to something as simple as a loose con-
nection. Check the following before proceedi ng to the problem-specific solutions. 
• Use some other electrical device to confirm that the electrical outlet is working. 
• Ensure the...

 
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LED Error Messages 
ERROR CODE MESSAGE POWER LED/FLASHES LAMP LED/FLASHES 
Thermal break status error 4 0 
Fan1 error (Power Fan) 6 1 
Fan2 error (Lamp Fan) 6 2 
Fan3 error (Blower Fan) 6 3 
Lamp door sensor detect high 7 0 
DMD error 8 0 
Color wheel error 9 0 
  

 
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Image Problems 
Problem: No image appears on the screen 
1.  Verify the settings on your notebook or desktop PC. 
2. Turn off all equipment and power on again in the correct order. 
Problem: The image is blurred  
1. Adjust the  Focus on the projector. 
2. Press the  Re-Sync button on the remote control or projector. 
3. Ensure the projector-to-screen distance is with in the 10-meter (33-feet) specified range. 
4. Check that the projector lens is clean. 
Problem: The image is wider at...

 
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Remote Control Problems 
Problem: The projector does not respond to the remote control  
1.  Direct the remote control towards remote sensor on the projector.  
2. Ensure the path between remote  and sensor is not obstructed. 
3. Turn off any fluorescent lights in the room. 
4. Check the battery polarity. 
5. Replace the batteries. 
6. Turn off other Infrared-enabled  devices in the vicinity. 
7. Have the remote control serviced. 
Audio Problems 
Problem: There is no sound 
1. Adjust...

 
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Having the Projector Serviced 
If you are unable to solve the problem, you should hav e the projector serviced. Pack the projector in 
the original carton. Include a description of the pr oblem and a checklist of the steps you took when 
trying to fix the problem--the information may be useful to service personnel.  
Optoma Global Offices 
For service or support, please  contact your local office. 
USA 
715 Sycamore Drive  
Milpitas, CA 95035, USA  
Tel: +1-408-383-3700  
Fax:...