Vivitek D940vx Projector User Manual

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 con-
nection. 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...

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LED Error Messages 
ERROR CODE MESSAGES POWER LED
BLINK 
READY LED 
BLINK 
TEMP LED 
BLINK 
Over temperature OFF OFF ON 
Thermal Break 4 OFF OFF 
G794 fail 4 4 OFF 
T1 fail 4 5 OFF 
Lamp error 5 OFF OFF 
Ballast Over Temperature 5 1 OFF 
Ballast shot circuit in output detected 5 2 OFF 
End of lamp lift detected 5 3 OFF 
Ballast lamp did not ignite 5 4 OFF 
Lamp extinguished during normal operation 5 5 OFF 
Lamp...

DDDLLLPPP   PPPrrrooojjjeeeccctttooorrr   –––   UUUssseeerrr’’’sss   MMMaaannnuuuaaalll   
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 possib\
le.  
2. Use the Keystone button on the remote control or projector to correct the problem. 
Problem: The image is reversed  
Check...

DDDLLLPPP   PPPrrrooojjjeeeccctttooorrr———UUUssseeerrr’’’sss   MMMaaannnuuuaaalll   
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...

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SPECIFICATIONS 
Specifications 
Model D935VX D940VX  D930TX 
Display type TI DMD .55” XGA  TI DMD 0.7” XGA  TI DMD 0.55” XGA 
Resolution XGA 1024x768 Native  XGA 1024x768 Native  XGA 1024x768 Native 
Weight 3.5 kg (7.7 lbs)  3.6 kg (7.9 lbs) 
Projection distance 1 meters ~ 10 meters  1 meters ~ 10 meters  0.5 meters ~ 5 meters 
Projection screen size 22.5”~300” 23.4”~300”  38”~380” 
Projection lens Manual Focus/Manual Zoom  Manual Focus 
Zoom ratio 1.2 0.65 
Vertical keystone  
correction +/-...

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Projection Distance vs.  Projection Size 
 
D935VX / D940VX / D930TX Projection Distance and Size Table 
D935VX TELE WIDE 
Distance (m)  1.34 3.58 4.47 8.94 1.54 3.09 3.86 11.58 
Diagonal (inches)  30 80 100 200 40  80 100 300 
Keystone (degree)  12.3 12.3 12.3 12.3 14.2 14.2 14.2 14.2 
Image Height (mm)  457.2  1219.2  1524...

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D935VX / D940VX / D930TX Timing Mode Table 
The projector can display several resolutions. The following table outlines the resolutions that can be 
displayed by the projector. 
SIGNAL RESOLUTION H-SYNC  
(KHZ) 
V-SYNC
(HZ) 
COMPOSITE 
/ S-VIDEO COMPONENT RGB 
(ANALOG) 
DVI/ 
HDMI 
(DIGITAL)
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...

DDDLLLPPP   PPPrrrooojjjeeeccctttooorrr———UUUssseeerrr’’’sss   MMMaaannnuuuaaalll   
SIGNAL RESOLUTION H-SYNC  
(KHZ) 
V-SYNC
(HZ) 
COMPOSITE 
/ S-VIDEO COMPONENT RGB 
(ANALOG) 
DVI/ 
HDMI 
(DIGITAL)
720p 37.5 50.0 — O — O 
720p 45.0 60.0 — O — O 
1080i 33.8 60.0 — O — O 
1080i 28.1 50.0 — O — O 
1080p 67.5 60.0 — O — O 
HDTV 
1080p 56.3 50.0 — O — O 
O: Frequency supported 
—: Frequency not supported 
The resolution of the panel for the D935VX / D940VX / D930TX is 1024 x 768. Resolution other than...

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Projector Dimensions 
 
 
 
 
– 53 –  

REGULATORY COMPLIANCE 
FCC Warning 
This equipment has been tested and found to comply with the limits for a Class B digital device pur-
suant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection 
against harmful interference when the equipment is operated in a commercial environment. 
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and 
used in accordance with the instruction manual, may cause harmful interference to radio...