Vivitek D825mx Projector User Manual

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– 35 – 
MAINTENANCE AND SECURITY 
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: 
a. The projection lamp used in this product contains a small amount of mercury. 
b. Do not dispose this product with general household waste. 
c. Disposal of this product must be carried out in accordance with the regulations of your local  
authority. 
Warning: 
Be sure to turn off and unplug the projector at least 30 minutes before replacing the lamp. Failure to 
do so could result in a severe burn. 
1.  Loosen the two captive 
screws on the lamp 
compartment cover. 
 
2.  Remove the lamp 
compartment cover. 
  
						

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– 36 – 
 
3. Remove the two screws from 
the lamp module. 
4. Lift the module handle up. 
 
5. Pull firmly on the module  
handle to remove the lamp 
module. 
 
6. Reverse steps 1 to 5 to install 
the new lamp module.  
While installing, align the 
lamp module with the  
connector and ensure it is level 
to avoid damage. 
Note: The lamp module must 
sit securely in place and the 
lamp connector must be 
connected properly before 
tightening the screws. 
 
  
						

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– 37 – 
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 
OSD menu. 
2.  Press the cursor ◄► button to move 
to the Installation II menu. Press the 
cursor  button to move down to  
Advanced. 
3.  Press the cursor ▼▲ button to move 
down to Lamp Hour Reset. 
4.  Press the cursor ► or Enter button.  
A message screen appears. 
5.  Press ▼▲◄► buttons to reset the 
lamp hour. 
6.  Press the MENU button to get back 
to Installation II.  
  
						

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– 38 – 
Cleaning the Projector 
Cleaning the projector to remove dust and grime will help ensure trouble-free operation.  
Warning: 
1. Be sure to turn off and unplug the projector at least 30 minutes 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 interior while cleaning, leave unplugged in a well-ventilated 
room for several hours before using. 
4. If a lot of water gets into the projector interior when cleaning, have the projector serviced. 
Cleaning the Lens 
You can purchase optic lens cleaner from most camera stores. Refer to the following to clean the 
projector lens. 
1. Apply a little optic lens cleaner to a clean soft cloth. (Do not apply the cleaner directly to the lens.) 
2. Lightly wipe the lens in a circular motion. 
Caution: 
1. Do not use abrasive cleaners or solvents. 
2. To prevent discoloration or fading, avoid getting cleaner on the projector case. 
Cleaning the Case 
Refer to the following to clean the projector case. 
1. Wipe off dust with a clean dampened cloth. 
2. Moisten the cloth with warm water and mild detergent (such as used to wash dishes), and then wipe 
the case. 
3. Rinse all detergent from the cloth and wipe the projector again. 
Caution: 
To prevent discoloration or fading of the case, do not use abrasive alcohol-based cleaners.  
						

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– 39 – 
Using the Kensington® Lock 
If you are concerned about security, attach the projector to a permanent object with the Kensington 
slot and a security cable.  
 
Note: 
Contact your vendor for details on purchasing a suitable Kensington security cable.  
The security lock corresponds to Kensington’s MicroSaver Security System. If you have any 
comment, contact: Kensington, 2853 Campus Drive, San Mateo, CA 94403, U.S.A. Tel: 800-535-
4242, http://www.Kensington.com. 
  
						

							— 40 — 
TROUBLESHOOTING 
Common problems and solutions 
These guidelines provide tips to deal with problems you may encounter while using the projector. If 
the problem remains unsolved, contact your dealer for assistance. 
Often after time spent troubleshooting, the problem is traced to something as simple as a loose 
connection. Check the following before proceeding to the problem-specific solutions. 
• Use some other electrical device to confirm that the electrical outlet is working. 
• Ensure the projector is turned on. 
• Ensure all connections are securely attached.  
• Ensure the attached device is turned on. 
• Ensure a connected PC is not in suspending mode. 
• Ensure a connected notebook computer is configured for an external display. 
(This is usually done by pressing an Fn-key combination on the notebook.) 
Tips for Troubleshooting 
In each problem-specific section, try the steps in the order suggested. This may help you to solve the 
problem more quickly. 
Try to pin point the problem and thus avoid replacing non-defective parts.  
For example, if you replace batteries and the problem remains, put the original batteries back and go 
to the next step.  
Keep a record of the steps you take when troubleshooting: The information may be useful when 
calling for technical support or for passing on to service personnel. 
  
						

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– 41 – 
LED Error Messages 
ERROR CODE MESSAGES POWER LED 
BLINK 
OVER TEMP  
LED 
READY LED 
BLINK 
Over temperature  0 ON 0 
Thermal break status error  4  4  0 
Lamp error  5 0 0 
Fan1 error  6 0 1 
Fan2 error  6 0 2 
Fan3 error  6 0 3 
Lamp door open  7 0 0 
DMD error  8 0 0 
Color wheel error  9  0  0 
In the event of an error, please disconnect the AC power cord and wait for one (1) minute before 
restarting the projector. If the Power or Ready LEDs are still blinking or the Over Temp LED is lit, 
contact your service center. 
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 up again in the correct order. 
Problem: The image is blurred  
1. Adjust the Focus on the projector. 
2. Press the Auto button on the remote control or projector. 
3. Ensure the projector-to-screen distance is within the 10-meter (33-feet) specified range. 
4. Check that the projector lens is clean. 
Problem: The image is wider at the top or bottom (trapezoid effect)  
1. Position the projector so it is as perpendicular to the screen as possible.  
2. Use the Keystone button on the remote control or projector to correct the problem. 
Problem: The image is reversed  
Check the Projection setting on the Installation I menu of the OSD. 
Problem: The image is streaked  
1. Set the Frequency and Tracking settings on the Computer menu of the OSD to the 
default settings. 
2. To ensure the problem is not caused by a connected PC’s video card, connect to another 
computer.  
Problem: The image is flat with no contrast  
Adjust the Contrast setting on the Image menu of the OSD. 
Problem: The color of the projected image does not match the source image. 
Adjust the Color Temperature and Gamma settings on the Image menu of the OSD.  
						

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– 42 – 
Lamp Problems 
Problem: There is no light from the projector  
1. Check that the power cable is securely connected. 
2. Ensure the power source is good by testing with another electrical device. 
3. Restart the projector in the correct order and check that the Power LED is green. 
4. If you have replaced the lamp recently, try resetting the lamp connections.  
5. Replace the lamp module. 
6. Put the old lamp back in the projector and have the projector serviced. 
Problem: The lamp goes off 
1. Power surges can cause the lamp to turn off. Re-plug power cord. When the Ready LED 
is on, press the power button. 
2. Replace the lamp module. 
3. Put the old lamp back in the projector and have the projector serviced. 
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 the volume on the remote control.  
2. Adjust the volume of the audio source. 
3. Check the audio cable connection. 
4. Test the source audio output with other speakers. 
5. Have the projector serviced. 
Problem: The sound is distorted  
1. Check the audio cable connection. 
2. Test the source audio output with other speakers. 
3. Have the projector serviced. 
Having the Projector Serviced 
If you are unable to solve the problem, you should have the projector serviced. Pack the projector in 
the original carton. Include a description of the problem and a checklist of the steps you took when 
trying to fix the problem: The information may be useful to service personnel. For servicing, return the 
projector to the place you purchased it. 
  
						

							— 43 — 
SPECIFICATIONS 
Specifications 
Model D825MS D825MX 
Display type TI DMD SVGA  TI DMD XGA 
Resolution SVGA 800x600 Native  XGA 1024x768 Native 
Projection distance 1 meters ~ 10 meters  1 meter ~ 10 meters 
Projection screen size 24.6 to 246 inches  23 to 255 inches 
Projection lens Manual focus  Manual Focus/Manual Zoom 
Zoom ratio N/A 1.1 
Vertical keystone  
correction +/- 15 degrees 
Projection methods Front, Rear, Desktop/Ceiling (Rear, Front) 
Data compatibility IBM PC or compatibles (VGA, SVGA, XGA, SXGA, UXGA), Mac 
SDTV/EDTV/ HDTV 480i, 576i, 480p, 576p, 720p, 1080i 
Video compatibility NTSC/NTSC 4.43, PAL (B/G/H/I/M/N/60), SECAM 
H-Sync 15, 30 – 80 kHz 
V-Sync 43 – 87 Hz 
Safety certification FCC-B, UL, cUL, CB, CE and CCC 
Operation temperature 5° ~ 35°C 
Dimensions 280 mm (W) x 88 mm (H) x 205 mm (D) 
AC Input AC Universal 100 ~ 240, Typical @ 110VAC (100~240)/+-10% 
Power consumption Typical 230W (Normal mode); Typical 200W (Eco mode) 
Stand By 
						

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– 44 – 
Projection Distance vs. Projection Size 
 
D825MS Projection Distance and Size Table 
D825MS TR 2 FIX ZOOM 
Distance (m)  1.22  3.25   4.06   10.00  
Diagonal (inches)  30  80  100  246 
Keystone (degree)  13.50   13.50   13.50   13.50  
Image Height (mm)  457.2  1219.2  1524  3749.04 
Image Width (mm)  609.6  1625.6  2032  4998.72 
A (mm)  64.01   170.69   213.36   524.87  
 
D825MX Projection Distance and Size Table 
D825MX TELE WIDE 
Distance (m)  1.32  3.51  4.39 8.78 1.57 3.14 3.92 10.00 
Diagonal (inches) 30 80 100 200 40 80 100 255 
Keystone (degree)  12.53  12.53 12.53 12.53  13.97 13.97 13.97 13.97 
Image Height (mm)  457.2  1219.2  1524  3048  609.6  1219.2  1524  3886.2 
Image Width (mm)  609.6  1625.6 2032 4064 812.8 1625.6 2032 5181.6 
A (mm)  64.01  170.69  213.36426.72 85.34  170.69 213.36 544.07