Vivitek Projector DX831 User Manual

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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 about one 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 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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Using the Kensington Lock 
 
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.  
 
Using the Security Bar 
In addition to the password protection function and the Kensington lock, the Security Bar helps 
protect the projector from unauthorized removal. See the following picture. 
 
    
						

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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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LED Error Messages 
ERROR CODE MESSAGES POWER LED 
GREEN 
LAMP LED 
RED 
TEMP LED  
RED 
System Initial Flash OFF OFF 
Ready to Power on (Standby) ON OFF OFF 
System Power on Flash OFF OFF 
Lamp Lit , System stable ON OFF OFF 
Cooling Flashing OFF OFF 
1W MCU detects scaler stops working (initial fail) 2 blinks OFF OFF 
Over Temperature OFF OFF ON 
Thermal Break Sensor error 4 blinks OFF OFF 
Lamp Fail 5 blinks OFF OFF 
Lamp Temperature shut down 5 blinks 1 blinks OFF 
Lamp Short circuit in output detected 5 blinks 2 blinks OFF 
Lamp End of lamp life detected 5 blinks 3 blinks OFF 
Lamp did not ignite 5 blinks 4 blinks OFF 
Lamp extinguished normal 5 blinks 5 blinks OFF 
Lamp extinguished run-up 5 blinks 6 blinks OFF 
Lamp voltage too low 5 blinks 7 blinks OFF 
Lamp ballast Fail 5 blinks 8 blinks OFF 
Lamp ballast Communication error 5 blinks 10 blinks OFF 
Fan-1 error 6 blinks 1 blinks OFF 
Fan-2 error 6 blinks 2 blinks OFF 
Fan-3 error 6 blinks 3 blinks OFF 
Fan-4 error 6 blinks 4 blinks OFF 
Case Open 7 blinks OFF OFF 
DAD1000 error 8 blinks OFF OFF 
Color wheel error 9 blinks OFF OFF 
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 Lamp LEDs are still blinking or any other situation that isnt listed in the chart 
above, please 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. 
3. Ensure the projector-to-screen distance is within the specified range. 
4. Check that the projector lens is clean.  
						

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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 to correct the problem. 
Problem: The image is reversed  
Check the Projection setting on the Settings 1 menu of the OSD. 
Problem: The image is streaked  
1. Set the Frequency and Tracking settings on the Image->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->Advanced menu of the 
OSD. 
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 on. 
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 Power 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 battery. 
6. Turn off other Infrared-enabled devices in the vicinity. 
7. Have the remote control serviced.  
						

							– 57 – 
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.  
						

							— 58 — 
HDMI Q & A 
Q. What is the difference between a “Standard” HDMI cable and a “High-Speed” HDMI 
cable? 
Recently, HDMI Licensing, LLC announced that cables would be tested as Standard or High-
Speed cables.  
˙Standard (or “category 1”) HDMI cables have been tested to perform at speeds of 75Mhz or 
up to 2.25Gbps, which is the equivalent of a 720p/1080i signal.  
˙High Speed (or “category 2”) HDMI cables have been tested to perform at speeds of 340Mhz 
or up to 10.2Gbps, which is the highest bandwidth currently available over an HDMI cable 
and can successfully handle 1080p signals including those at increased color depths and/or 
increased refresh rates from the Source. High-Speed cables are also able to accommodate 
higher resolution displays, such as WQXGA cinema monitors (resolution of 2560 x 1600). 
 
Q. How do I run HDMI cables longer than 10 meters? 
There are many HDMI Adopters working on HDMI solutions that extend a cable’s effective 
distance from the typical 10 meter range to much longer lengths. These companies 
manufacture a variety of solutions that include active cables (active electronics built into 
cables that boost and extend the cable’s signal), repeaters, amplifiers as well as CAT5/6 and 
fiber solutions. 
 
Q. How can I tell if a cable is an HDMI certified cable? 
All HDMI products are required to be certified by the manufacturer as part of the HDMI 
Compliance Test Specification. However, there may be instances where cables bearing the 
HDMI logo are available but have not been properly tested. HDMI Licensing, LLC actively 
investigates these instances to ensure that the HDMI trademark is properly used in the 
market. We recommend that consumers buy their cables from a reputable source and a 
company that is trusted. 
 
For more detail information check http://www.hdmi.org/learningcenter/faq.aspx#49 
 
  
						

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59  – SPECIFICATIONS
 
Specifications  Model   DX831 / DX931
  DW832 / DW932
 Display type   TI DMD 0.55” XGA   TI DMD 0.65” WXGA  
Resolution   XGA 1024 x 768   WXGA 1280 x 800  
Projection distance   1.2m~10m  
Projection screen size   21.5~269.7 ”   25.3” ~ 317.99”  
Projection lens   Manual Focus/ Manual   Zoom  
Zoom ratio   1.5x  
Vertical keystone correction   +/ -   40  Degree s  
Projection methods   Front,  Rear, Desktop/Ceiling (Rear, Front)  
Data compatibility   VGA, SVGA, XGA, SXGA, SXGA+, UXGA,  WUXGA@60hz,  Mac  
SDTV/EDTV/ HDTV   480i,  576i,  480p,  576p,  720p, 1080i, 1080p  
Video compatibility   NTSC, PAL, SECAM  
H - Sync   15, 3 1 ~91.4KHz  
V - Sync   24~3 0 Hz, 47~120Hz  
Safety certification   FCC - B, cUL, UL, NOM, CCC,   CECP,   PSB,  EAC , KC ,   CE, C - tick, UL - AR, CB , CU  
Operation temperature   5° ~  40 °C  
Dimensions   314   mm (W) x  21 3   mm (D) x  12 6   mm (H)  
AC Input   AC Universal 100 - 240 V  
Power consumption   410W (Normal), 320W (ECO), < 0.5W (Standby), < 2W (on by Lan)  
Lamp   310W (Normal) / 245W (Eco)  
Audio speaker   10W mono speaker x  1  
Input Terminals   VGA in x 2  
Composite Video x 1  
S - Video x 1  
HDMI x 1, HDMI (with MHL) x 1  
Mini - jack stereo x  1  
RCA Stereo Audio LR x 1  
Microphone (mini - jack) x1  
Output Terminals   VGA out x 1  
PC audio out (mini - jack) x 1  
USB type A power Only x1  
Control Terminals   RS - 232C  
RJ45  
DC 12V trigger (3.5mm Jack)  
USB (Type mini B)  -   service only  
Security   Kensington lock  
Note:
 For questions regarding product specifications, please contact your local distributor.  
						

							— 
60  —   Projection Distance vs. Projection Size 
Projection Distance and Size Table 
XGA 
DX831 / DX931
 I MAGE  D IAGONAL   I MAGE  W IDTH   I MAGE  H EIGHT   P ROJECTION  D ISTANCE   O FFSET - A  
INCH CM INCH CM INCH CM INCH MM
40   81.3   32   61.0   24   186.1   73.3   85  
60   121.9   48   91.4   36   279.2   109.9   127  
100   203.2   80   152.4   60   465.3   183.2   212  
150   304.8   120   228.6   90   698.0   274.8   318  
200   406.4   160   304.8   120   930.7   366.4   424  
250   508   200   381   150   1163.3   458   530  
300   609.6   240   457.2   180   1396.0   549.6   636  
WXGA 
DW83
2 / DW932   I MAGE  D IAGONAL   I MAGE  W IDTH   I MAGE  H EIGHT   P ROJECTION  D ISTANCE   O FFSET - A  
INCH CM INCH CM INCH CM INCH   MM 
40   86.2   33.9   53.8   21.2   157.7   62.1   61  
60   129.2   50.9   80.8   31.8   236.5   93.1   92  
100   215.4   84.8   134.6   53.0   394.2   155.2   153  
150   323.1   127.2   201.9   79.5   591.2   232.8   229  
200   430.8   169.6   269.2   106.0   788.3   310.4   305  
250   538.5   212.0   336.5   132.5   985.4   388.0   382  
300   646.2   254.4   403.9   159.0   1182.5   465.6   458  A  
						

							– 61 – 
Timing Mode Table 
SIGNAL RESOLUTION H-SYNC  
(KHZ) 
V-SYNC 
(HZ) 
COMPOSITE 
/ S-VIDEO COMPONENT RGB DVI/ 
HDMI 
NTSC － 15.734 60.0 O － － － 
PAL/SECAM － 15.625 50.0 O － － － 
VESA 
720 x 400 37.9 85.0 － － O O 
640 x 480 31.5 60.0 － － O O 
640 x 480 37.9 72.8 － － O O 
640 x 480 37.5 75.0 － － O O 
640 x 480 43.3 85.0 － － O O 
800 x 600 35.2 56.3 － － O O 
800 x 600 37.9 60.3 － － O O 
800 x 600 46.9 75.0 － － O O 
800 x 600 48.1 72.2 － － O O 
800 x 600 53.7 85.1 － － O O 
800 x 600 76.3 120.0 － － O O 
1024 x 768 48.4 60.0 － － O O 
1024 x 768 56.5 70.1 － － O O 
1024 x 768 60.0 75.0 － － O O 
1024 x 768 68.7 85.0 － － O O 
1024 x 768 97,6 120.0 － － O O 
1280 x 720 45.0 60.0 － － O O 
1280 x 720 91.5 119.9 － － O O 
1280 x 800 49.7 59.8 － － O O 
1280 x 800 62.8 74.9 － － O O 
1280 x 800 71.6 84.8 － － O O 
1280 x 800 101.6 119.9 － － O O 
1280 x 1024 64.0 60.0 － － O O 
1280 x 1024 80.0 75.0 － － O O 
1280 x 1024 91.1 85.0 － － O O