Vivitek D735vx Projector User Manual

							 – 35  –
 
MAINTENANCE AND SECURITY 
Replacing the Projection Lamp 
The projection lamp should be repl aced when it burns out. It should onl y be replaced with a certified 
replacement part, which you can order from your local dealer.  
Important: 
a.  The lamp contains a certain am ount of mercury and should be dispos ed of according to local ordi-
nance regulations. 
b. Avoid touching the glass surfac e of the new lamp: Doing so may shorten its operation life. 
 
Warning: 
Be sure to turn off and unplug the projector at leas t 30 minutes before replacing the lamp. Failure to 
do so could result in a severe burn. 
 
Note: 
Safety glasses should be worn when replacing the lamp while the projector is ceiling mounted. 
 
1.  Loosen the two cap-
tive screws on the 
lamp compartment 
cover (A). 
  
						

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2.  Remove the lamp 
compartment cover 
(B). 
 
3.  Remove the two 
screws from the lamp 
module (C ). 
4.  Lift the module handle 
up (D). 
 
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5.  Pull firmly on the 
module handle to re-
move 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 en-
sure it is level to avoid 
damage. 
Note: The lamp mod-
ule must sit securely in 
place and the lamp 
connector must be 
connected properly 
before tightening the 
screws. 
 
 
–  37  –  
						

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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 the cursor buttons in this 
order: ▼▲◄► .
 
The Installation II  menu appears 
again showing the  Lamp Hours 
reset to zero. 
 
 
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–  39  – 
Cleaning the Projector 
Cleaning the projector to remove dust and gr ime 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 a llow water to enter the ventilation openings on 
the projector.  
3. If a little water gets into the projector interi or while cleaning, leave unplugged in a well-ventilated 
room for several hours before using. 
4. If a lot of water gets into the projector inte rior 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 pro-
jector lens. 
1. Apply a little optic lens cleaner to a clean soft cl oth. (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, av oid 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 det ergent (such as used to wash dishes), and then 
wipe the case. 
3. Rinse all detergent from the cl oth and wipe the projector again. 
Caution: 
To prevent discoloration or fading of the ca se, do not use abrasive alcohol-based cleaners.  
						

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Using the Kensington® 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 purchas ing a suitable Kensington security cable.   
The security lock corresponds to Kensington’s Mi croSaver Security System. If you have any com-
ment, contact: Kensington, 2853 Ca mpus Drive, San Mateo, CA 94403, U.S.A. Tel: 800-535-4242, 
http://www.Kensington.com. 
 
– 40 –  
						

							 – 41  –
 
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, cont act your dealer for assistance. 
Often after time spent troubleshooti ng, 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 confir m 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, tr y 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 batte ries 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 call-
ing for technical support or for passing on to service personnel. 
  
						

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– 42 – 
LED Error Messages 
ERROR CODE MESSAGES POWER LED 
BLINK 
READY LED 
BLINK OVERHEAT LED  
Over temperature  0 0 ON 
Thermal Break  4 0 0 
G794 fail  4 4 0 
T1 fail  4 5 0 
PING code error  4 6 0 
Lamp error  5 0 0 
Ballast Over Temperature  5 1 0 
Ballast shot circuit in output detected  5 2 0 
End of lamp lift detected  5 3 0 
Ballast lamp did not ignite  5 4 0 
Lamp extinguished during normal 
operation  5 5 
0 
Lamp extinguished during run-up 
phase  5 6 
0 
Fan1 error (Lamp Fan)  6 1 0 
Fan2 error (Ballast Fan)  6 2 0 
Fan3 error (Burner Fan)  6 3 0 
Fan4 error (Power Fan)  6 4 0 
Lamp door open  7 0 0 
DMD error  8 0 0 
Color wheel error  9 0 0 
In the event of an error, pleas e disconnect the AC power cord and  wait for one (1) minute before re-
starting the projector. If the  POWER or READY  LEDs are still blinking or the  OVERHEAT 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 with in 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. 
  
						

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–  43  – 
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 de-
fault 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 imag\
e. 
Adjust the Color Temperature and Gamma  settings on the Image menu of the OSD.  
						

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– 44 – 
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 projec tor 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 projec tor 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 hav e the projector serviced. Pack the projector in 
the original carton. Include a description of the pr oblem and a checklist of the steps you took when 
trying to fix the problem: The information may be useful to service per sonnel. For servicing, return the 
projector to the pl ace you purchased it.