Vivitek Dh758ust User Manual

							— 43— 
Advanced 2 Feature 
Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 2 menu. 
Press ▲▼ to move to the Advanced 2 menu and then press Enter or ►. Press ▲▼ to move up 
and down in the Advanced 2 menu. Press ◄► to enter and change values for setting. 
 
ITEM DESCRIPTION 
Sleep Timer (min) Press the cursor ◄► buttons to enter and set Sleep timer. The projector automatically 
turns off after the preset period of time. 
Source Filter Press  (Enter) / ► to enter the Source Filter menu. See page 44 for more 
information on Source Filter.   
						

							— 44— 
Source Filter 
Press the ENTER button to enter the Source Filter sub menu. 
 
ITEM DESCRIPTION 
HDMI1/MHL Press the ◄► buttons to enter and enable or disable the HDMI1/ MHLJcompatible 
sourceK 
eDMI2 Press the ◄► buttons to enter and enable or disable the HDMIO sourceK 
VGA1 Press the ◄► buttons to enter and enable or disable the VGA1 source. 
VGA2  Press the ◄► buttons to enter and enable or disable the VGA2 source. 
pJVideo Press the ◄► buttons to enter and enable or disable the SJVideo sourceK 
Composite Video Press the ◄► buttons to enter and enable or disable the Composite Video source. 
  
						

							— 45— 
MAINTENANCE AND SECURITY 
Replacing the Projection Lamp 
The projection lamp should be replaced when it burns out. It should only be replaced with a 
certified replacement part, which you can order from your local dealer.  
 Important: 
a. The projection lamp used in this product contains a small amount of mercury. 
b. Do not dispose this product with general household waste. 
c. Disposal of this product must be carried out in accordance with the regulations of your local  
authority. 
 Warning: 
Be sure to turn off and unplug the projector at least 30 minutes before replacing the lamp. 
Failure to do so could result in a severe burn. 
 
 Caution: 
In rare cases the lamp bulb may burn out during normal operation and cause glass dust or 
shards to be discharged outward from the rear exhaust vent. 
Do not inhale or do not touch glass dust or shards. Doing so could result in injury.  
Always keep your face away from the exhaust vent so that you do not suffer from the gas and 
broken shards of the lamp. 
When removing the lamp from a ceiling-mounted projector, make sure that no one is under the 
projector. Glass fragments could fall if the lamp has been burned out.  
 IF A LAMP EXPLODES 
If a lamp explodes, the gas and broken shards may scatter inside the projector and they may 
come out of the exhaust vent. The gas contains toxic mercury. 
Open windows and doors for ventilation. 
If you inhale the gas or the shards of the broken lamp enter your eyes or mouth, consult the 
doctor immediately.   
1.  Remove the single screw 
on the lamp compartment 
cover. 
       
						

							— 46— 
2.  Remove the lamp 
compartment cover. 
 
3.  Remove the two screws 
from the lamp module. 
 
4.  Lift the module handle up. 
5.  Pull firmly on the module  
handle to remove 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 ensure it is 
level to avoid damage. 
Note: The lamp module 
must sit securely in place 
and the lamp connector 
must be connected 
properly before tightening 
the screws. 
 
     
						

							— 47— 
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 Settings 2 menu. 
Press the cursor button to move 
down to Advanced 1 and press 
enter. 
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 hour. 
6.  Press the MENU button to get 
back to Settings 2. 
  
						

							— 48— 
Cleaning the filter (filter: optional parts) 
The air filter prevents dust from accumulating on the surface of the optical elements inside the 
projector. If the filter is dirty or clogged, your projector may overheat or degrading the projected 
image quality. 
1.  Turn off the projector, and 
unplug the AC power cord 
from the AC outlet. 
 
2.  Cleaning the filter with a 
vacuum cleaner. 
 
 Caution: 
Recommend avoiding dusty or smoky environments when you operate the projector, it may 
cause poor image quality. 
If the filter is heavily clogged and unable to clean, replace a new filter. 
 
Note:  
Using a ladder is recommended to access the filter. Do not remove the projector from the 
wall mount.     
						

							— 49— 
Replacing the Filter 
1.  Turn off the projector, and 
unplug the AC power cord 
from the AC outlet.  
Clean up the dust on the 
projector and around the 
air vents.  
Pull out the filter cover and 
remove from the projector 
Use soft brush gently to 
clean the filter dust both 
side.  
2.  Or lift the filter from the 
filter cover. 
 
3.  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
Replace a new filter 
module or replace filter into 
cover. 
 
4.  Replace the filter cover 
back to the projector by 
pushing gently in the  
direction shown. 
 
 Waming: 
Do not wash the filter with the water or other liquid matter.
  
 Important: 
When the lamp is replaced, the filter should also be replaced, not cleaned.        
						

							— 50— 
Cleaning the Projector 
Cleaning the projector to remove dust and grime will help ensure trouble-free operation.  
Cleaning the Projector Mirror: 
 
 
Remove dust with a “Bellows/Lens Blower”  
readily available from Camera shops to prevent scratching the mirror when subsequently wiped. 
 Cautions: 
1. Always turn the projector off and allow to cool for at least 30 minutes prior to cleaning. 
2. Never touch the projector mirror or Lens directly by hand. 
3. Do not use abrasive cleaners, solvents or other harsh chemical cleaners. 
    
						

							— 51— 
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 detergent (such as used to wash dishes), and 
then wipe the case. 
3. Rinse all detergent from the cloth and wipe the projector again. 
 Caution: 
To prevent discoloration or fading of the case, do not use abrasive alcohol-based cleaners. 
 
 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 well-
ventilated room for several hours before using. 
4. If a lot of water gets into the projector interior when cleaning, have the projector serviced. 
 
 
 
 
 
 
 
 
 
    
						

							— 52— 
Using the Physical Lock 
Using the Kensington® Lock 
If you are concerned about security, attach the projector to a permanent object with the 
Kensington slot and a security cable.  
 
Note: 
Contact your vendor for details on purchasing a suitable Kensington security cable.  
The security lock corresponds to Kensington’s MicroSaver Security System. If you have any 
comment, contact: Kensington, 2853 Campus Drive, San Mateo, CA 94403, U.S.A. Tel: 800-
535-4242, http://www.Kensington.com. 
 
Using the Security Bar 
In addition to the password protection function and the Kensington lock, the Security Bar helps 
protect the projector from unauthorized removal. 
See the following picture.