BenQ Mp612/mp612c/mp622/mp622c Digital Projector User Manual

Maintenance 51
Maintenance
Care of the projector
Your projector needs little maintenance. The only thing you need to do on a regular basis is 
to keep the lens clean.
Never remove any parts of the projector except the lamp. Contact your dealer if other parts 
need replacing.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface. 
• Use a canister of compressed air to remove dust. 
• If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens cleaner...

Maintenance 52
Lamp information
Calculation of lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically 
calculated by the built-in timer. The method of calculating the equivalent lamp hour is as 
follows:
Total (equivalent) lamp hour
= 1 (hours used in Economic mode) + 4/3 (hours used in normal mode)
See Lamp mode (Normal) on page 49 for more information on Economic mode.
The lamp hour in Economic mode is calculated as 3/4 of that in normal mode. That is,...

Maintenance 53
Replacing the lamp
• To reduce the risk of electrical shock, always turn the projector off and disconnect the 
power cord before changing the lamp.   
• To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes 
before replacing the lamp.
• To reduce the risk of injuries to fingers and damage to internal components, use caution 
when removing lamp glass that has shattered into sharp pieces.
• To reduce the risk of injuries to fingers and/or compromising image...

Maintenance 543. Remove the lamp cover from the projector.
• Do not turn the power on with the lamp cover 
removed.
• Do not insert your fingers between the lamp and 
the projector. The sharp edges inside the 
projector may cause injuries.
4. Loosen the screw that secures the lamp.
5. Lift the handle so that it stands up. Use the 
handle to slowly pull the lamp out of the 
projector.
• Pulling it too quickly may cause the lamp to break 
and scatter broken glass in the projector.
• Do not place the lamp...

Maintenance 55 11. Restart the projector.
Do not turn the power on with the lamp cover removed. 
12. After the startup logo, open the On-Screen 
Display (OSD) menu. Go to the SYSTEM 
SETUP: Advanced > Lamp Settings menu. 
Press ENTER. The Lamp Settings page 
displays. Highlight Reset Lamp Timer. A 
warning message displays asking if you want 
to reset the lamp timer. Highlight Reset and 
press ENTER. The lamp time will be reset to 0.
Do not reset if the lamp is not new or replaced as this could cause...

Maintenance 56
Indicators
Illustration
•Blank -: Light OFF
•O: Orange light
•: Light flashing•R: Red light
•: Light ON•G: Green light
LightStatus & Description
PowerTe m pLamp
Power events
The projector has just been connected to a power outlet.
--Stand-by mode.
--Powering up.
--Normal operation.
--
1. The projector needs 90 seconds to cool down as it was 
abnormally shut down without the normal cooling down 
process. Or
2. The projector needs to cool for 90 seconds after the 
power is turned off.
--The...

Maintenance 57
LightStatus & Description
PowerTe m pLamp
Thermal events
--
The projector has shutdown automatically. If you try to re-start 
the projector, it w ill shutdow n again. Please contact your dealer 
for assistance.
-
-
-
-
 R
 R R
 R G
 RO
 R  R R
 R  R G
 R  RO
 G  R R
 G  R G
 G  RO
O  R R
O  R G
O  RO
 G R
 G G 

Troubleshooting 58
Troubleshooting
The projector does not turn on.
No picture
Blurred image
Remote control does not work
The password is incorrect
CauseRemedy
There is no power from the power 
cable.Plug the power cord into the AC inlet on the 
projector, and plug the power cord into the 
power outlet. If the power outlet has a switch, 
make sure that it is switched on.
Attempting to turn the projector on 
again during the cooling process.Wait until the cooling down process has 
completed.
CauseRemedy...

Specifications 59
Specifications
Projector specifications 
All specifications are subject to change without notice. 
General
Product name Digital Projector Digital Projector
Model name MP612/MP612c MP622/MP622c
Optical
Resolution 800 x 600 SVGA 1024 x 768 XGA
Display system 1-CHIP DMD
Lens F/Number F=2.4 to 2.48, f= 20.7 to 22.8 mm
Lamp 200W lamp
Electrical
Power supply
AC100–240V, 3.1A, 50–60 Hz (Automatic)
Power consumption 285W (Max)
Mechanical
Dimensions 239 mm (W) x 106.3 mm (H) x 251 mm (D)
Weight...

Specifications 60
Dimensions
239 mm (W) x 106.3 mm (H) x 251 mm (D)
Unit: mm 
239
251
106.3
64.5 66.3