Vivitek Dh758ust User Manual

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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...

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LED Error Messages 
ERROR CODE MESSAGES POWER LED 
GREEN 
LAMP LED 
RED 
TEMP LED 
RED 
Lamp Ready ON OFF OFF 
Start Flashing OFF OFF 
Cooling Flashing OFF OFF 
Over Temperature OFF OFF ON 
T1 error 3 blinks 1 blinks OFF 
Thermal Break Sensor error 4 blinks OFF OFF 
G794 error 4 blinks 4 blinks OFF 
Lamp fail 5 blinks OFF OFF 
Ballast temp over 5 blinks 1 blinks OFF 
Ballast circuit short 5 blinks 2 blinks OFF 
Lamp End of lamp life detected 5 blinks 3 blinks OFF 
Lamp did not ignite 5 blinks 4...

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3. Ensure the projector-to-screen distance is within the 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 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...

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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...

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HDMI Q & A 
Q. What is the difference between a “Standard” HDMI cable and a “High-Speed” 
HDMI cable? 
1. Recently, HDMI Licensing, LLC announced that cables would be tested as Standard 
or High-Speed cables.  
2. ˙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.  
3. ˙High Speed (or “category 2”) HDMI cables have been tested to perform at speeds of 
340Mhz or up to 10.2Gbps, which is the...

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SPECIFICATIONS 
Specifications 
Model DH758UST DH758USTIR 
Display type DMD 0.65 1080P 
Resolution 1080P 1920 x 1080 Native 
Projection distance 663mm - 833mm 
Projection screen size 16:9 (88”~110”) 
Projection lens Fix 
Throw ratio 0.33 : 1 
Vertical keystone correction +/- 40 degrees 
Projection methods Front, Rear, Desktop/Ceiling (Rear, Front) 
Data compatibility VGA, SVGA, XGA, SXGA, UXGA, Mac 
SDTV/EDTV/ HDTV 480i, 576i, 480p, 576p, 720p, 1080i, 1080p 
Video compatibility NTSC/NTSC 4.43, PAL...

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Projection Distance vs. Projection Size 
   
 
 
Projection Distance and Size Table  
 
DH758UST  / DH758USTIR Series  
1080P 
16:9 
Diagonal 88.9 99 102 110 
Distance 340.3+/-20mm 421.4+/-20mm 445.8+/-20mm 510.5+/-20mm 
Image Width 1968mm 2194mm 2262mm 2435mm 
Image height 1107mm 1234mm 1272mm 1370mm 
H  331.2+/-50mm 362.8+/-50mm 372.3+/-50mm 397.6+/-50mm 
 
   

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Timing Mode Table 
SIGNAL  RESOLUTION  H-SYNC 
( KHZ ) 
V-SYNC 
( HZ ) 
COMPOSITE 
S_VIDEO COMPONENT RGB 
(ANALOG) 
DP/HDMI 
(DIGITAL) 
NTSC － 15.734 60 ○ － － － 
PAL/SECAM － 15.625 50 ○ － － － 
VESA 
720 x 400 31.5 70.1 － － ○ ○ 
720 x 400 37.9 85.04 － － ○ ○ 
640 x 480 31.5 60 － － ○ ○ 
640 x 480 37.9 72.8 － － ○ ○ 
640 x 480 37.5 75 － － ○ ○ 
640 x 480 43.3 85 － － ○ ○ 
800 x 600 35.2 56.3 － － ○ ○ 
800 x 600 37.9 60.3 － － ○ ○ 
800 x 600 46.9 75 － － ○ ○ 
800 x 600 48.1 72.2 － － ○ ○ 
800 x 600 53.7 85.1...

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SIGNAL  RESOLUTION  H-SYNC 
( KHZ ) 
V-SYNC 
( HZ ) 
COMPOSITE 
S_VIDEO COMPONENT RGB 
(ANALOG) 
DP/HDMI 
(DIGITAL) 
1440 x 900 70.6 75 － － ○ ○ 
1600 x1200 75 60 － － ○ ○ 
1680 x 1050 64.7 59.9 － － ○ ○ 
1680 x 1050 65.3 60 － － ○ ○ 
1920 x 1200 74 60 － － ○ ○ 
1920 x 1080 67.5 60 － － ○ ○ 
Apple 
Macintosh 
640 x 480 35 66.7 － － ○ ○ 
832 x 624 49.7 74.5 － － ○ ○ 
1024 x 768 60.2 74.9 － － ○ ○ 
1152 x 870 68.7 75.1 － － ○ ○ 
SDTV 480i 15.734 60 － ○ － ○ 
576i 15.625 50 － ○ － ○ 
EDTV 576p 31.3 50 － ○ － ○...

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Projector Dimensions ( DH758UST Series ) 
 160m
m
122.6m
m
374.5m
m