Mitsubishi Hc910 Projector User Manual

							HC910
DLP™ PROJECTOR
MODEL
HC910
User Manual
ENGLISH
This User Manual is important to you.
Please read it before using your projector. 
						

							EN-2
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 equilateral triangle is intended to alert the user to the 
presence of important operating and maintenance (servicing) instructions in the literature 
accompanying the appliance.
WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION:
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, 
RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE 
EXPOSURE.
NOTE:
SINCE THIS PROJECTOR IS PLUGGABLE EQUIPMENT, THE SOCKET-OUTLET SHALL BE INSTALLED NEAR THE 
EQUIPMENT AND SHALL BE EASILY ACCESSIBLE.
WARNING
Use the attached specifi ed power supply cord. If 
you use another power-supply cord, it may cause 
interference with radio and television reception.
Use the attached RS-232C cable and RGB cable with 
this equipment so as to keep interference within the 
limit of a FCC Class B device.
This apparatus must be grounded.
DO NOT LOOK DIRECTLY INTO THE LENS WHEN 
THE PROJECTOR IS IN THE POWER ON MODE.
CAUTION
Not for use in a computer room as defi ned in the 
Standard for the Protection of Electronic Computer/
Data Processing Equipment, ANSI/NFPA 75.When using the projector in Europe:
COMPLIANCE NOTICE 
This Projector complies with the requirements of the 
EC Directive 89/336/EEC “EMC Directive” as amended 
by Directive 92/31/EEC and 93/68/EEC, and 73/23/
EEC “Low Voltage Directive” as amended by Directive 
93/68/EEC.
The electro-magnetic susceptibility has been chosen 
at a level that gains proper operation in residential 
areas, on business and light industrial premises and 
on small-scale enterprises, inside as well as outside of  
the buildings. All places of operation are characterised 
by their connection to the public low voltage power 
supply system.
WARNING
Use the attached RS-232C cable and RGB cable with 
this equipment so as to keep interference within the 
limits of an EN55022 Class B device.
Please follow WARNING instructions. 
						

							EN-3
ENGLISH
Contents
Declaration of Conformity
Model number :   HC910
Trade name :   MITSUBISHI ELECTRIC 
Responsible party :  Mitsubishi Digital Electronics America, Inc.
  9351 Jeronimo Road, Irvine, CA 92618 U.S.A
Telephone number :  +1-(949) 465-6000
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 
(1)  this device may not cause harmful interference, and 
(2)  this device must accept any interference received, including interference that may cause undesired operation. 
Important safeguards ........................................................................................................................ 4
Preparing your projector .................................................................................................................... 6
Using the remote control ................................................................................................................... 9
Setting up your projector ................................................................................................................. 10
Viewing video images ...................................................................................................................... 12
Viewing computer images ............................................................................................................... 18
Menu operation ............................................................................................................................... 21
Adjusting projected images ............................................................................................................. 24
Advanced features .......................................................................................................................... 27
Asking for installation ...................................................................................................................... 28
Using fi lter ....................................................................................................................................... 29
Replacing the lamp ......................................................................................................................... 30
Troubleshooting ............................................................................................................................... 32
Indicators ......................................................................................................................................... 35
Specifi cations .................................................................................................................................. 36
Trademark, Registered trademark
Macintosh is registered trademark of Apple Computer Inc.
DLP™, Digital Micromirror Device and DMD are all trademarks of Texas Instruments.
Other brand or product names are trademarks or registered trademarks of their respective holders.
Note: This symbol mark is for EU countries only.
This symbol mark is according to the directive 2002/96/EC Article 10
Information for users and Annex IV.
Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components 
which can be recycled and reused.
This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from 
your household waste.
Please, dispose of this equipment at your local community waste collection/recycling centre.
In the European Union there are separate collection systems for used electrical and electronic product.
Please, help us to conserve the environment we live in! 
						

							EN-4
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.
4. Instructions
  All operating instructions must be followed.
5. Cleaning
  Unplug this projector from the wall outlet before 
cleaning it. Do not use liquid aerosol cleaners. Use 
a damp soft cloth for cleaning.
6. Attachments and equipment
  Never add any attachments and/or equipment 
without the approval of the manufacturer as such 
additions may result in the risk of fi re, electric 
shock or other personal injury.
7.  Water and moisture
  Do not use this projector near water or in contact 
with water.
8. Accessories
  Do not place this projector on an unstable cart, 
stand, tripod, bracket or table. Use only with a 
cart, stand, tripod bracket, or table recommended 
by the manufacturer or sold with the projector. 
Any mounting of the appliance should follow 
the manufacturer's instructions and should use 
a mounting accessory recommended by the 
manufacturer.10. Power sources
  This projector should be operated only from the 
type of power source indicated on the marking 
label. If you are not sure of the type of power, 
please consult your appliance dealer or local 
power company.
11. Power-cord protection
  Power-supply cords should be routed so that 
they are not likely to be walked on or pinched 
by items placed upon or against them. Pay 
particular attention to cords at plugs, convenience 
receptacles, and points where they exit from the 
appliance. Do not put the power cord under a 
carpet.
12. Overloading
  Do not overload wall outlets and extension cords 
as this can result in a fi re or electric shock.
13. Objects and liquids
  Never push objects of any kind through openings 
of this projector as they may touch dangerous 
voltage points or short-out parts that could result 
in a fi re or electric shock. Never spill liquid of any 
kind on the projector.
14. Servicing
  Do not attempt to service this projector by yourself. 
Refer all servicing to qualifi ed service personnel. 
15. Damage requiring service
  Unplug this projector from the wall outlet and refer 
servicing to qualifi ed service personnel under the 
following conditions:
(a)  If the power-supply cord or plug is damaged.
(b)  If liquid has been spilled, or objects have fallen 
into the projector.
(c)  If the projector does not operate normally after 
you follow the operating instructions. Adjust 
only those controls that are covered by the 
operating instructions. An improper adjustment 
of other controls may result in damage and 
may often require extensive work by a qualifi ed 
technician to restore the projector to its normal 
operation.
(d)  If the projector has been exposed to rain or 
water.
(e)  If the projector has been dropped or the  
cabinet has been damaged.
(f)  If the projector exhibits a distinct change in 
performance - this indicates a need for service.
16. Replacement parts
  When replacement parts are required, be sure 
that the service technician has used replacement 
parts specifi ed by the manufacturer or parts 
having the same characteristics as the original 
part. Unauthorized substitutions may result in fi re, 
electric shock or other hazards.
17. Safety check
  Upon completion of any service or repair to this 
projector, ask the service technician to perform 
safety checks determining that the projector is in a 
safe operating condition.   An appliance and cart combination should be 
moved with care. Quick stops, excessive force and 
uneven surfaces may cause the appliance and cart 
combination to overturn.
9. Ventilation
  Slots and openings in the cabinet are provided 
for ventilation, ensuring reliable operation of the 
projector and to protect it from overheating. Do not 
block these openings or allow them to be blocked 
by placing the projector on a bed, sofa, rug, or 
bookcase. Ensure that there is adequate ventilation 
and that the manufacturer's instructions have been 
adhered to. 
						

							EN-5
ENGLISHWARNING:
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 
contact your dealer when you want to fi x, adjust or 
inspect the projector.
Do not modify this equipment.
It can lead to fi re or electric shock.
If you break or drop the cabinet.
Do not keep using this equipment if you break or drop 
it. Unplug the projector and contact your dealer for 
inspection. It may lead to fi re if you keep using the 
equipment.
Do not face the projector lens to the sun.
It can lead to fi re.
Use correct voltage.
If you use incorrect voltage, it can lead to fi re.
Do not place the projector on uneven 
surface. 
Place the projection on a leveled and stable surface 
only. Please do not place equipment on unstable 
surfaces. 
Do not look into the lens when it is 
operating. It may hurt your eyes.
Never let children look into the lens when it is on.
Do not turn off the main power abruptly or 
unplug the projector during operation.
It can lead to lamp breakage, fi re, electric shock or 
other trouble. It is best to wait for the fan to turn off 
before turning the main power off.
Do not touch the air outlet grille and 
bottom plate, which become hot.
Do not touch them or put other equipment in front 
of the air outlet grille. The air outlet grille and bottom 
plate, when heated, may cause injury or damage to 
other equipment. Also, do not set the projector on the 
desk which is easily affected by heat.
Do not look into the air outlet grille when 
projector is operating.
Heat, dust, etc. may blow out of it and hurt your eyes.
Do not block the air inlet and outlet grilles.
If they are blocked, heat may be generated inside the 
projector, causing deterioration in the projector quality 
and fi re.
Place of installation
For safety’s sake, refrain from setting the projector 
at any place subjected to high temperature and high 
humidity. Please maintain an operating temperature, 
humidity, and altitude as specifi ed below.
•  Operating temperature: between +41°F (+5°C) and 
+95°F (+35°C)
•  Operating humidity:  between 30% and 90%
•  Never put any heat-producing device under the 
projector so that the projector does not overheat.
•  Do not attach the projector to a place that is 
unstable or subjected to vibration.
•  Do not install the projector near any equipment that 
produces a strong magnetic fi eld. Also refrain from 
installing near the projector any cable carrying a 
large current.
•  Place the projector on a solid, vibration free surface; 
otherwise it may fall, causing serious injury to a 
child or adult, and serious damage to the product.
•  Do not stand the projector; it may fall, causing 
serious injury and damage to the projector.
•  Slanting the projector more than ±10°(right and 
left) or ±15°(front and rear) may cause trouble or 
explosion of the lamp.
•  Do not place the projector near air-conditioning 
unit or heater to avoid hot air to the exhaust and 
ventilation hole of the projector.
COMPLIANCE NOTICE OF FCC
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a 
residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed 
and used in accordance with the instructions, may cause harmful interference to radio communications. However, 
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause 
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, 
the user is encouraged to try to correct the interference by one or more of the following measures:
•  Reorient or relocate the receiving antenna.
•  Increase the separation between the equipment and receiver.
•  Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
•  Consult the dealer or an experienced Radio / TV technician for help. 
Changes or modifi cations not expressly approved by Mitsubishi could void the user's authority to operate this 
equipment.
COMPLIANCE NOTICE OF INDUSTRY CANADAThis Class B digital apparatus complies with Canadian ICES-003. 
						

							EN-6
Preparing your projector
CablesPower supply parts
Remote control parts
Power cord (two)
(246C483-10, 246C383-20)
Remote control
(290P133-10)
R03 (Size-AAA) 
battery (two) RS-232C cable
(246C508-10)
RGB cable for PC 
(246C521-10)
Others
• Lens cap (Attached to the 
projector)
• User manual (English only)
   (871D420-70)
• CD-ROM (with User manual)
   (919C137-30)
Mini D-SUB
15-pin
Mini D-SUB
15-pinD-SUB 9-pin
8-pin
• Used for projector control 
by computer.
Filter parts
Filter cover (Filter)
(761B421-20)Cap
(761C765-10)
• Safety manual (871D421-30)
• Quick Start up (857D064-70)
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 rst.
•  If the battery is inserted from the (+) side fi rst, inserting 
the (-) side is diffi cult because the coil spring end hits on 
the battery side. If the battery is forced to insert in this 
way, the outer label of the battery may get ripped and it 
may cause a short-circuit and heating.
3.  Attach the rear lid.
Important:
•  Use two size-AAA batteries (R03).
•  Replace the two batteries with new ones when the remote 
control is slow to operate.
CAUTION: 
•  Use of a battery of wrong type may cause explosion.  
•  Only Carbon-Zinc or Alkaline-Manganese Dioxide type batteries should be used. 
•  Dispose of used batteries according to your local regulations. 
•  Batteries may explode if misused. Do not recharge, disassemble, or dispose of them in fi re.
•  Be sure to handle the batteries according to the instructions.  
•  Load the batteries with its positive (+) and negative (-) sides correctly oriented as indicated on the remote control. 
•  Keep batteries out of reach of children and pets. 
•  Remove the batteries, if the remote control is not used for a long time. 
•  Do not combine a new battery with an old one.
•  If the solution of batteries comes in contact with your skin or clothes, rinse with water. If the solution comes in 
contact with your eyes, rinse them with water and then consult your doctor. 
						

							EN-7
ENGLISHOverview
321
57
1098
64
2
1
3
4
8
5
6
7
9
1 FOCUS ring
2 ZOOM ring
3 Control panel 
4 Air outlet grille
5  Remote control sensor (Front)
6 Air inlet grille
7 Air outlet grille
8 Terminal board
9  Kensington Security Lock Standard connector
10 Air inlet grille
Control area
1 POWER button
2 AUTO POSITION / 
 button
3 COMPUTER / 
 button
4 MENU button
5 STATUS indicator
6 POWER indicator
7 KEYSTONE/ENTER button
8 VIDEO/ 
 button
9 
 button
Important:
•  While the menu is on the screen for the keystone adjust-
ment or password entry is being displayed, the COMPU-
TER, VIDEO, and AUTO POSITION buttons function as the 
, 
, and 
 buttons respectively.
•  While the menu is on the screen, the KEYSTONE button 
functions as the ENTER button.
S-VIDEO IN
COMPONENT VIDEO IN
12345
8766 9
VIDEO IN
Terminal panel
1 Power jack
2  DVI-D (HDCP)  IN terminal (DVI-D 24-pin)
3  COMPUTER IN/ COMPONENT VIDEO IN terminal (Mini 
D-SUB 15-pin)
4  Remote control sensor (Rear)
5  COMPONENT VIDEO IN terminals
6  Foot adjustment buttons (Left/Right)
7 Air outlet grille
8 SERIAL terminal (8-pin)
 Used for projector control by computer. Contact 
your dealer for details.
9  VIDEO IN / S-VIDEO IN terminals 
						

							EN-8
ON
DVI
PCCOMP
CONTRAST
ASPECT
CNT
M1AV MEMORY
BRIGHTNESSBRT
M2COLOR TEMPC. T.
GAMMASHARPNESSSHARPIRIS
AUTO POSITIONA.P.
M3
VIDEO
S-VIDEO
POWER
OFF
COMPUTER
DVI-D (HDCP)
COMPONENT
ENTER
MENU
1
2
3
4
5
6
7
8
918 19
17
16
15
14
13
12
11
10
1
2
3
Preparating your projector (Continue)
Bottom side
1 Adjustment foot (Front)
2 Lamp cover
3 Adjustment feet (Rear)
Caution:
Do not replace the lamp immediately after using the 
projector because the lamp would be extremely hot 
and it may cause burns.
Remote control
1 ON (  ) button
2 DVI-D(HDCP) button
3 COMPUTER button
4 ENTER button
5 MENU button
6  AV MEMORY buttons
7 CONTRAST button*
8 GAMMA button*
9  AUTO POSITION button
10 SHARPNESS button*
11 IRIS button
12 BRIGHTNESS button*
13 COLOR TEMP button*
14 ASPECT button
15 Direction buttons
16 S-VIDEO button
17 VIDEO button
18 OFF (
) button
19 COMPONENT button
* : See below for the picture quality adjusting buttons.  
Important:
When you press any button on the remote control, the buttons 
on the remote control are lit. Wait approx. 5 seconds after 
releasing the button to turn them off.
Using the picture quality adjusting buttons
When you press any of the picture quality adjusting buttons, the screen for adjusting the picture quality appears. Ad-
just the picture quality by pressing the 
 and 
 buttons. The picture quality adjustment can be made alternatively in 
the IMAGE menu. (See Page 22.) Items in the menus are shown in parentheses below. 
CONTRAST (CONTRAST)  ………… Adjust the contrast of the projected image.
GAMMA (GAMMA MODE)  ………… Selects one of the preset gamma mode.
SHARPNESS (SHARPNESS) ……… Adjust the sharpness of the projected image.
BRIGHTNESS (BRIGHTNESS)  …… Adjust the brightness of the projected image.
COLOR TEMP (COLOR TEMP.) …… Selects one of the preset color temperatures (HIGH BRIGHTNESS/9300K/6500K/
5900K/USER). Color adjustment of USER mode is also available. Select "USER" 
and press the ENTER button for color adjustment of USER mode. Use the 
 or 
 button to select an item and 
 or 
 button to adjust the selected item. (Refer 
to page 25.) 
						

							EN-9
ENGLISH
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
  away from fl uorescent lamps. Otherwise, the re-
mote control may malfunction.
•  If there is an inverter-operated fl uorescent lamp 
near the remote control, the remote control opera-
tion may become unstable.
Reception angle
Vertical directions
Vertical directions (ceiling mount) Front of projectorRear of projector
Operate the remote 
control within a distance 
of 10 m from the projector, 
pointing the light beam at 
the remote control photo-
sensor (front or rear) of 
the projector.
When operating the remote control, keep the distance 
from the remote control to the projector via the screen 
within about 5 m. The operable range of the remote 
control, however, depends on the characteristics of the 
screen. 
						

							EN-10
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 projected images whitish and hard to view. 
Basic setup
Determine the distance from the screen to the projector according to the size of the images to be projected. (See 
Page 11.) 
•  Do not place this projector on a carpet or blanket because the exhaust vent and the intake vent on the bottom 
surface are blocked and the inside of the projector is heated, causing a breakdown or fi re. 
•  Depending on the installation conditions, warm air that is emitted from the exhaust vents may fl ow into the intake 
vent, causing the projector to display “TEMPERATURE!!” and then stop projecting images. 
Adjusting the projection angle
This projector is provided with three feet for 
adjusting the projection angle on the bottom 
surface. Adjust the projection angle depending on 
the position of the projector. 
Adjustment of the projection angle
For the best projection, project images on a 
fl at screen installed at 90 degrees to the fl oor. 
If necessary, tilt the projector using the two 
adjustment feet on the bottom of the projector. 
1.  Tilt up the projector to the appropriate angle. 
2.  Press the foot adjustment buttons next to the 
adjustment feet (rear), and the adjustment feet 
will come out. 
3.  Release the buttons to lock the adjustment feet 
(rear) to that position.
4.  Rotate the adjustment feet (rear) for fi ne 
adjustment.
After using the projector:
5.  Put the adjustment feet (rear) back into the 
projector by pressing the foot adjustment 
buttons.
•  If necessary, rotate the adjustment feet (front) for 
fi ne adjustment. When projected images are distorted to a 
trapezoid:
When the screen and the projector are not placed 
perpendicularly to each other,  projected images 
become trapezoidal. If you cannot make the 
projector and the screen perpendicular to each 
other by mechanical adjustments, adjust keystone. 
(See Page 16.) 
•  When the keystone adjustment is applied, the 
correct aspect ratio may not be obtained. 
•  When the keystone adjustment is applied, the 
resolution lowers. In addition, vertical stripes ap-
pear and straight lines bend in images with com-
plicated patterns. To prevent such symptoms, 
keep the screen and the projector perpendicular 
to each other as much as possible. 
•  Though the projected image may be distorted 
momentarily when you change the setting value 
of the keystone adjustment, such symptom is not 
a malfunction. 
•  Though the projected image may be distorted 
depending on the setting value of the keystone 
adjustment and the type of the input signal, such 
symptom is not a malfunction. In such a case, 
adjust the setting value within the range where 
the projected image is not distorted. 
•  The setting value displayed at the time of the 
keystone adjustment may vary depending on the 
type of the input signal. 
•  The keystone mode does not function when the 
REAL mode is applied.
Screen
Adjustment feet
 (rear)