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...

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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). 
 
– 36 –  

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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...

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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...

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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...

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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...

 – 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. 
•...

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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...

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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,...

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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 ,...