Vivitek D857wt Projector User Manual

DLP Projector – User’s Manual 
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...

DLP Projector—User’s 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 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...

DLP Projector – User’s Manual 
Using the Kensington® Lock 
®Using the Kensington
– 45  – 
 Lock 
If you are concerned about security, attach the proj ector to a permanent object with the Kensington 
slot and a security cable.  
 
Note: 
Contact your vendor for details on purchasing a suitable Kensi ngton security cable.  
The security lock corresponds to Kensington’s Micr oSaver Security System. If you have any com-
ment, contact: Kensington, 2853 Campus Drive, San Mateo, CA 94403, U.S.A. Tel:...

DLP Projector—User’s Manual 
– 46 – 
 
TROUBLESHOOTING 
Common problems and solutions 
These guidelines provide tips to deal with problem s 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...

DLP Projector – User’s Manual 
– 47  – 
LED Error Messages 
ERROR CODE MESSAGES POWER LED 
BLINK 
OVER TEMP  
LED 
LAMP LED  
BLINK 
Standby mode ON 0 0 
Over temperature 0 ON 0 
Thermal break status error 4 0 0 
Lamp error 0 0 ON 
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 re-
starting the projector. If the Power or Lamp LEDs are...

DLP Projector—User’s Manual 
– 48 – 
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 te sting 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....

DLP Projector – User’s Manual 
– 49  – 
HDMITM Q & A 
Q. What is the difference between a “Standard” HDMITM cable and a “High-Speed” 
HDMITM cable? 
Recently, HDMITM Licensing, LLC announced that cables would be tested as Standard or 
High-Speed cables.  
․ Standard (or “category 1”) HDMITM 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”) HDMITM cables have been tested to perform at speeds of...

DLP Projector—User’s Manual 
– 50 – 
 
SPECIFICATIONS 
Specifications 
Model  D851 D853W D855ST 
Display type TI DMD 0.55”  TI DMD 0.65”  TI DMD 0.65” 
Resolution XGA 1024x768  WXGA 1280x800  WXGA 1280x800 
Projection distance 
1 ~ 10 m  1.5 ~ 10 m  0.5 ~5 m 
Projection screen size 25.6” ~ 307.6”   40” ~ 306”   37.3” ~ 373” 
Projection lens  Manual Focus/Manual Zoom Manual Focus/ 
Fix Zoom 
Zoom ratio  1.2x 1.15x Fix 
Vertical keystone correction  +/- 15 degrees 
Projection methods Front, Rear,...

DLP Projector – User’s Manual 
– 51  – 
Projection Distance vs. Projection Size 
 
Projection Distance and Size Table 
D851 TELE WIDE 
Distance (m) 1.00 3.12 3.90 9.75 1.30 2.60 3.25 10.00 
Diagonal (inches) 25.6 80  100  250  40  80  100 307.6 
Keystone (degree) 14.04 14.04  14.04  14.04  16.70 16.70 16.70 16.70 
Image Height (mm) 390.1 1219.2 1524.0 3810.0609.6  1219.2 1524.0 4687.8
Image Width (mm) 520.2 1625.6 2032.0 5080.0812.8  1625.6 2032.0 6250.4
A (mm) 54.6 170.7 213.4  533.4 85.3  170.7 213.4...

DLP Projector—User’s Manual 
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Timing Mode Table 
SIGNAL RESOLUTION H-SYNC  
(KHZ) 
V-SYNC 
(HZ) 
COMPOSITE 
/ S-VIDEOCOMPONENT RGB DVI/ 
HDMITM
NTSC  － 15.734 60.0 O － － － 
PAL/SECAM － 15.625 50.0 O － － － 
720 x 400 37.9 85.0 － － O O 
640 x 480 31.5 60.0 － － O O 
640 x 480 37.9 72.0 － － 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 56.0 － － O O 
800 x 600 37.9 60.0 － － O O 
800 x 600 48.1 72.0 － － O O 
800 x 600 46.9 75.0 － － O O 
800 x 600 53.7 85.0 － － O O 
1024...