Mitsubishi Hl2750u Projector User Manual

HL2750
LCD PROJECTOR
MODEL
HL2750U
User Manual
This User Manual is important to you.
Please read it before using your projector. 

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CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC 
SHOCK, DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE 
PERSONNEL.
The lightning fl ash with arrowhead symbol within an equilateral triangle is intended to alert 
the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure 
that may be of suffi cient magnitude to constitute a risk of electric shock.
The exclamation point within an...

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Contents
Important safeguards ........................................................................................................................ 4
Preparing your projector .................................................................................................................... 6
Using the remote control ................................................................................................................... 9
Setting up your projector...

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Important safeguards
Please read all these instructions regarding your 
projector and retain them for future reference. Follow 
all warnings and instructions marked on the projector.
1. Read instructions
  All the safety and operating instructions should be 
read before the appliance is operated.
2. Retain instructions
  The safety and operating instructions should be 
retained for future reference.
3. Warnings
  All warnings on the appliance and in the operating 
instructions should be adhered to....

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WARNING:
Unplug immediately if there is something 
wrong with your projector.
Do not operate if smoke, strange noise or odor comes 
out of your projector. It might cause fi re or electric 
shock. In this case, unplug immediately and contact 
your dealer.
Never remove the cabinet.
This projector contains high voltage circuitry. An 
inadvertent contact may result in an electric shock. 
Except as specifi cally explained in the User Manual do 
not attempt to service this product by yourself. Please...

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Preparing your projector
1
23 Checking accessories
The following accessories are provided with this projector. Check to be sure that all of the accessories are packed in 
the package. 
Important:
•  The attached power cords are to be used exclusively for this product. Never use them for other products.
Inserting the batteries into the remote control
1.  Remove the rear lid of the remote control.
2.  Check the polarity (+), (-) of the batteries, and set them 
correctly, inserting their (-) side fi...

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Overview
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1 Speaker
2  Air inlet grille/Filter cover
3 Control area 
4 ZOOM ring
5 FOCUS ring
6  Remote control sensor (Front)
7  Air outlet grille
8 Lamp cover
9  Air outlet grille
10 Remote control sensor (Rear)
11 Kensington Security Lock Standard connector
12 Lock bar (SECURITY ANCHOR)
•  Attach a chain, etc. to this lock bar to anchor the projector.
13 Terminal board
Caution:
Do not replace the lamp immediately after using the projector 
because the...

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1
2 
Preparating your projector (continued)
Bottom side
1  Adjustment foot (for vertical position)
2  Adjustment foot (for horizontal position)
1
2
COMPUTER
VIDEO S-VIDEO
DVI-D(HDCP)
HOME PageUP
END PageDOWNAUTO POSITION
KEYSTONE
ASPECT
PinP
STILL EXPAND
MUTE WALL SCREEN
12
VOLUME
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15CE
MENUENTER
LASER
R-CLICK
28
Remote control1 Laser aperture
2 Transmission window
3 Indicator
4 POWER button
5 VIDEO button
6 DVI-D (HDCP) button
7 HOME...

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Using the remote control
30°  30° 30° 30°
20°
10°
20°
10°
20° 20°
Operational range of the remote control
•  Keep the remote control photo-sensor out of direct 
sunlight or fl uorescent lamp light.
•  Keep the remote control photo-sensor at least 2 m (6 
feet) away from fl uorescent lamps. Otherwise, the 
remote control may malfunction.
•  If there is an inverter-operated fl uorescent lamp 
near the remote control, the remote control opera-
tion may become unstable.
•  When you use the remote control...

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Setting up your projector
W 
A 
A=B  B 
Setting up the screen
Install the screen perpendicularly to the projector. If the screen can not be installed in such a way, adjust the 
projection angle of the projector. (See below.)
•  Install the screen and projector so that the projector’s lens is placed at the same height and horizontal position of 
the screen center. 
•  Do not install the screen where it is exposed to direct sunlight or lighting. Light directly refl ecting on the screen 
makes the...