Sharp Xg C50x Projector User Manual

							LCD PROJECTOR
MODEL
XG-C50X
OPERATION MANUAL
Introduction
Connections and Setup
Basic Operation
Easy to Use Functions
Appendix 
						

							IMPORTANT
For your assistance in reporting the loss or theft of your
Projector, please record the Serial Number located on
the bottom of the projector and retain this information.
Before recycling the packaging, please be sure that
you have checked the contents of the carton thoroughly
against the list of “Supplied accessories” on page 14.Model No.: XG-C50X
Serial No.:
The supplied CD-ROM contains operation instructions in English, German, French, Swedish, Spanish, Italian,
Dutch, Portuguese, Chinese (Traditional Chinese and Simplified Chinese), Korean and Arabic. Carefully read
through the operation instructions before operating the projector.
Die mitgelieferte CD-ROM enthält Bedienungsanleitungen in Englisch, Deutsch, Französisch, Schwedisch, Spanisch,
Italienisch, Niederländisch, Portugiesisch, Chinesisch (Traditionelles Chinesisch und einfaches Chinesisch),
Koreanisch und Arabisch. Bitte lesen Sie die Bedienungsanleitung vor der Verwendung des Projektors sorgfältig durch.
Le CD-ROM fourni contient les instructions de fonctionnement en anglais, allemand, français, suédois,
espagnol, italien, néerlandais, portugais, chinois (chinois traditionnel et chinois simplifié), coréen et arabe.
Veuillez lire attentivement ces instructions avant de faire fonctionner le projecteur.
Den medföljande CD-ROM-skivan innehåller bruksanvisningar på engelska, tyska, franska, svenska, spanska,
italienska, holländska, portugisiska, kinesiska (traditionell kinesiska och förenklad kinesiska), koreanska och
arabiska. Läs noga igenom bruksanvisningen innan projektorn tas i bruk.
El CD-ROM suministrado contiene instrucciones de operación en inglés, alemán, francés, sueco, español,
italiano, holandés, portugués, chino (chino tradicional y chino simplificado), coreano y árabe. Lea
cuidadosamente las instrucciones de operación antes de utilizar el proyector.
Il CD-ROM in dotazione contiene istruzioni per l’uso in inglese, tedesco, francese, svedese, spagnolo, italiano,
olandese, portoghese, cinese (cinese tradizionale e cinese semplificato), coreano e arabo. Leggere
attentamente le istruzioni per l’uso prima di usare il proiettore.
De meegeleverde CD-ROM bevat handleidingen in het Engels, Duits, Frans, Zweeds, Spaans, Italiaans,
Nederlands, Portugees, Chinees (Traditioneel Chinees en Vereenvoudigd Chinees), Koreaans en Arabisch.
Lees de handleiding zorgvuldig door voor u de projector in gebruik neemt.
O CD-ROM fornecido contém instruções de operação em Inglês, Alemão, Francês, Sueco, Espanhol, Italiano,
Holandês, Português, Chinês, (Chinês Tradicional e Chinês Simplificado), Coreano e Árabe. Leia
cuidadosamente todas as instruções de operação antes de operar o projetor. 
						

							Introduction
-1
Before using the projector, please read this operation manual carefully.
There are two important reasons for prompt warranty registration of your new SHARP Projector, using
the REGISTRATION CARD packed with the projector.
1. WARRANTY
This is to assure that you immediately receive the full benefit of the parts, service and labor
warranty applicable to your purchase.
2. CONSUMER PRODUCT SAFETY ACT
To ensure that you will promptly receive any safety notification of inspection, modification, or
recall that SHARP may be required to give under the 1972 Consumer Product Safety Act, PLEASE
READ CAREFULLY THE IMPORTANT “LIMITED WARRANTY” CLAUSE.
WARNING:High brightness light source. Do not stare into the beam of light, or view directly. Be especially
careful that children do not stare directly into the beam of light.
WARNING:To reduce the risk of fire or electric shock, do not expose this product to rain or moisture.
WARNING:FCC Regulations state that any unauthorized changes or modifications to this equipment not
expressly approved by the manufacturer could void the user’s authority to operate this equip-
ment.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER.
NO USER-SERVICEABLE PARTS EXCEPT LAMP UNIT.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
The lightning flash 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 sufficient magnitude
to constitute a risk or electric shock to
persons.
The exclamation point within a triangle is
intended to alert the user to the presence of
important operating and maintenance
(servicing) instructions in the literature
accompanying the product.
IntroductionENGLISH
CAUTION
RISK OF ELECTRIC SHOCK.
DO NOT REMOVE SCREWS
EXCEPT SPECIFIED USER
SERVICE SCREWS.
INFORMATION
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the operation
manual, may cause harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference, in which case the user will be required to correct the interference
at his own expense.
See bottom of actual set.
The enclosed computer cable must be used with the device. The cable is provided to ensure that the device
complies with FCC Class A verification.
WARNING:This is a Class A product. In a domestic environment this product may cause radio interference in which case the
user may be required to take adequate measures.
U.S.A. ONLY
U.S.A. ONLY
U.S.A. ONLY
U.S.A. ONLY 
						

							-2
WARNING:
The cooling fan in this projector continues to run for about 90 seconds after the projector is turned off. During
normal operation, when turning the power off always use the power (OFF) button on the projector or on the remote
control. Ensure the cooling fan has stopped before disconnecting the power cord.
DURING NORMAL OPERATION, NEVER TURN THE PROJECTOR OFF BY DISCONNECTING THE POWER CORD.
FAILURE TO OBSERVE THIS WILL RESULT IN PREMATURE LAMP FAILURE.
Caution Concerning the Lamp Replacement
See “Replacing the Lamp” on page 85.
PRODUCT DISPOSAL
This projector utilizes tin-lead solder, and a pressurized lamp containing a small amount of mercury. Disposal of
these materials may be regulated due to environmental considerations. For disposal or recycling information,
please contact your local authorities or, if you are located in the United States of America, the Electronic Industries
Alliance: www.eiae.org .
PRECAUTIONS A OBSERVER LORS DU
REMPLACEMENT DE LA LAMPE.
DEBRANCHER LE CORDON D’ALIMENTATION AVANT DE RETIRER LES VIS.
L’INTERIEUR DU BOITIER ETANT EXTREMEMENT CHAUD, ATTENDRE 1 HEURE
AVANT DE PROCEDER AU REMPLACEMENT DE LA LAMPE.
NE REMPLACER QUE PAR UNE LAMPE SHARP DE TYPE BQC-XGC50X//1.
RAYONS ULTRAVIOLETS : PEUVENT ENDOMMAGER LES YEUX.
ETEINDRE LA LAMPE AVANT DE PROCEDER A L’ENTRETIEN.
LAMPE A MOYENNE PRESSION : RISQUE D’EXPLOSION. DANGER POTENTIEL
DE PARTICULES DE VERRE EN CAS D’ECLATEMENT DE LA LAMPE.
A MANIPULER AVEC PRECAUTION, SE REPORTER AU MODE D’EMPLOI. BEFORE REMOVING THE SCREW, DISCONNECT POWER CORD.
HOT SURFACE INSIDE. ALLOW 1 HOUR TO COOL BEFORE REPLACING THE LAMP.
REPLACE WITH SAME SHARP LAMP UNIT TYPE BQC-XGC50X//1 ONLY.
UV RADIATION : CAN CAUSE EYE DAMAGE. TURN OFF LAMP BEFORE SERVICING.
MEDIUM PRESSURE LAMP : RISK OF EXPLOSION. POTENTIAL HAZARD OF GLASS
PARTICLES IF LAMP HAS RUPTURED. HANDLE WITH CARE. SEE OPERATION MANUAL.
LAMP REPLACEMENT CAUTION 
						

							Introduction
-3
Outstanding Features
1. Ultra High Brightness from a Compact Projector
•AC 250W Lamp
Use AC 250W lamp for excellent color uniformity and ultra high brightness.
•Power Save mode function enables lower noise levels, reduced power
consumption and longer lamp life.
2. Simple & Easy Operation
•User friendly interface with easy to use operation system and connection
areas makes setup a breeze.
Smooth installation and operation using frequently used buttons,
placement of terminals, color schemes as well as combined use of auto
input and search.
•Simple lens replacement
Using an easy access lens cover and a new bayonnet mount configuration, the optional lens can be
easily installed.
3. Superior PC Compatibility
•Compatible with up to 200 Hz vertical refresh rate, Sync on Green and
Composite Sync signals for use with a wide variety of high-end PCs and
Workstations.
•
UsingAdvanced Intelligent Compression Technology, computer screens
of UXGA (1,600 # 1,200) resolution can be displayed with minimal distortion.
4. Advanced Computer & Video lntegrated Composer Technology
•Realizes vivid images using the latest image quality circuitry.
•New I/P conversion algorithm enhances the performance of the motion detect I/P
conversion.
Extensive improvements on the jagged edges or slanted
lines in moving images.
•Color Management System
Supports sRGB.
Enables individual settings of lightness, chromatic value
and hue for six target colors.
•Noise Reduction
Allows for a clear image even with noisy source signals.
•New Edge Up-Scaling
Reduces jaggies and flickering when up-scaling edges
of slanted lines, enabling sharper quality images.
5. Anti-theft and Safe Design
•Anti-theft
This function will render the projector useless if a keycode is not entered.
•Notevision Lock Down
The Notevision Lock Down (roof bolt) is coupled together with a metal-
lic optical mechanism. Thus, even if a strong force is applied, the
Notevision Lock Down prevents insert nut from falling out, and since
the projector can be more rigidly installed than in the past, it is effective
both for preventing theft and in terms of safety. 
						

							-4
Contents
Adjusting the Picture ........................................ 46
Adjusting Image Preferences .................................. 46
Selecting the Signal Type ....................................... 46
Progressive Mode .................................................... 47
Adjusting Computer Images ............................ 48
When Auto Sync is OFF ........................................... 48
Saving Adjustment Settings ..................................... 48
Selecting Adjustment Settings ................................ 49
Special Mode Settings ............................................ 49
Checking the Input Signal ....................................... 49
Auto Sync Adjustment ............................................. 50
Auto Sync Display Function ................................... 50
Easy to Use Functions
Selecting the Picture Display Mode ................ 52
Displaying a Still Image .................................... 54
Enlarging a Specific Portion of an Image ....... 55
Gamma Correction Function ............................ 56
Displaying Dual Pictures (Pict in Pict) ............ 57
Black Screen Function ..................................... 58
Displaying the Break Timer .............................. 59
Color Management System (C. M. S.) .............. 60
Selecting the Color Reproduction Mode ................. 60
Selecting the Target Color ....................................... 60
Setting the Brightness of the Target Color ............... 61
Setting the Chromatic Value of the Target Color ...... 61
Setting the Hue of the Target Color ........................ 61
Resetting User-Defined Color Settings ................... 62
Overview of All Color Settings ................................. 62
Setting the Audio Output Type ......................... 63
Setting on/off the Internal Speaker .................. 63
Auto Search Function ....................................... 64
Video Digital Noise Reduction
(DNR) System .............................................. 65
Setting On-screen Display ............................... 65
Setting the Video System ................................. 66
Saving Projected Images .................................. 67
Capturing the Image .............................................. 67
Deleting the Captured Image .................................. 67
Setting a Background Image ............................ 68
Selecting a Startup Image ................................ 68
Selecting the Economy Mode .......................... 69
Setting the Power Save Mode ................................. 69
Monitor Out/RS-232C Off Function .......................... 69
Automatic Power Off Function ................................. 70
Displaying the Remaining Lamp Life
(Percentage) ................................................. 70
Reversing/Inverting Projected Images ............ 71
Locking the Operation Buttons
on the Projector ........................................... 71
Setting up the Keylock ............................................ 71
Introduction
Outstanding Features ......................................... 3
Contents ............................................................... 4
IMPORTANT SAFEGUARDS ............................... 6
How to Access the PDF Operation Manuals
(Windows, Macintosh) ................................... 9
Part Names ........................................................ 10
Projector (Front and Top View) ................................ 10
Projector (Rear View) .............................................. 11
Remote Control (Front View) ................................... 12
Remote Control (Top View) ..................................... 12
Using the Remote Control ................................ 13
Available Range of the Remote Control ................. 13
Inserting the Batteries ............................................. 13
Accessories ....................................................... 14
Connections and Setup
Connecting the Projector to Other Devices .... 16
Before Connecting .................................................. 16
This projector can be connected to: ....................... 16
Connecting the Power Cord ................................... 17
Connecting the Projector to a Computer ............. 18
Connecting to Video Equipment .......................... 20
Connecting to an Amplifier .................................. 22
Controlling the Projector by a Computer ............. 23
Connecting to a Monitor ...................................... 24
Using the Wireless Presentation Function of the
Remote Control ............................................. 25
Using as a Wired Remote Control ....................... 26
Setup .................................................................. 27
Using the Adjustment Feet ..................................... 27
Adjusting the Lens .................................................. 28
Setting up the Screen .............................................. 29
Screen Size and Projection Distance ...................... 30
Projecting a Reversed/Inverted Image ................... 32
Basic Operation
Setting with the Buttons
Image Projection ............................................... 34
Basic Procedure ...................................................... 34
Selecting the On-screen Display Language ........... 36
Correcting Trapezoidal  Distortion
(Keystone Correction) ................................. 38
Setting with the Menus
Menu Bar Items ................................................. 40
Using the Menu Screen .................................... 42
Menu Selections (Adjustments) .............................. 42
Menu Selections (Settings) ..................................... 44 
						

							Introduction
-5
Canceling the Keylock Setting ................................ 72
Selecting the Transmission Speed
(RS-232C) ..................................................... 72
Setting up a Password ...................................... 73
Entering the Password ............................................. 73
Changing the Password ......................................... 74
If You Forget Your Password ................................... 74
Setting the Anti-Theft ........................................ 75
Entering the Keycode .............................................. 75
Changing the Keycode ........................................... 76
Initializing the Settings ..................................... 77
Displaying the Adjustment Settings ................ 78
Appendix
Maintenance ...................................................... 80
Replacing the Air Filter ..................................... 81
Maintenance Indicators .................................... 83
Regarding the Lamp ......................................... 85
Lamp ...................................................................... 85
Caution Concerning the Lamp ................................ 85
Replacing the Lamp ................................................ 85
Removing and Installing the Lamp Unit ................. 86
Resetting the Lamp Timer ....................................... 87
Connecting Pin Assignments .......................... 88
(RS-232C) Specifications and
Command Settings ...................................... 89
Wired Remote Control Terminal
Specifications .............................................. 92
Computer Compatibility Chart ......................... 93
Troubleshooting ................................................ 94
For SHARP Assistance ..................................... 96
Specifications .................................................... 97
Dimensions ........................................................ 98
Glossary ............................................................. 99
Index ................................................................. 100 
						

							-61. Read Instructions
All the safety and operating instructions should be read
before the product is operated.
2. Retain InstructionsThe safety and operating instructions should be
retained for future reference.
3. Heed WarningsAll warnings on the product and in the operating
instructions should be adhered to.
4. Follow InstructionsAll operating and use instructions should be followed.
5. CleaningUnplug this product from the wall outlet before cleaning.
Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.
6. AttachmentsDo not use attachments not recommended by the
product manufacturer as they may cause hazards.
7. Water and MoistureDo not use this product near water–for example, near
a bath tub, wash bowl, kitchen sink, or laundry tub; in a
wet basement; or near a swimming pool; and the like.
8. AccessoriesDo not place this product on an unstable cart, stand,
tripod, bracket, or table. The product may fall, causing
serious injury to a child or adult, and serious damage
to the product. Use only with a cart, stand, tripod,
bracket, or table recommended by the manufacturer,
or sold with the product. Any mounting of the product
should follow the manufacturer’s instructions, and
should use a mounting accessory recommended by
the manufacturer.
9. TransportationA product and cart combination
should be moved with care. Quick
stops, excessive force, and
uneven surfaces may cause the
product and cart combination to
overturn.
10.VentilationSlots and openings in the cabinet are provided for
ventilation to ensure reliable operation of the product
and to protect it from overheating, and these openings
must not be blocked or covered. The openings should
never be blocked by placing the product on a bed,
sofa, rug, or other similar surface. This product should
not be placed in a built-in installation such as a book-
case or rack unless proper ventilation is provided or
the manufacturer’s instructions have been adhered to.
IMPORTANT SAFEGUARDS
11. Power SourcesThis product 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 supply to your home,
consult your product dealer or local power company.
For products intended to operate from battery power,
or other sources, refer to the operating instructions.
12. Grounding or PolarizationThis product is provided with one of the following types
of plugs. If the plug should fail to fit into the power outlet,
please contact your electrician.
Do not defeat the safety purpose of the plug.
a. Two-wire type (mains) plug.
b. Three-wire grounding type (mains) plug with a
grounding terminal.
This plug will only fit into a grounding type power
outlet.
13. Power-Cord ProtectionPower-supply cords should be routed so that they are
not likely to be walked on or pinched by items placed
upon or against them, paying particular attention to
cords at plugs, convenience receptacles, and the point
where they exit from the product.
14. LightningFor added protection for this product during a lightning
storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and
disconnect the cable system. This will prevent damage
to the product due to lightning and power-line surges.
15. OverloadingDo not overload wall outlets, extension cords, or integral
convenience receptacles as this can result in a risk of
fire or electric shock.
16. Object and Liquid EntryNever push objects of any kind into this product through
openings as they may touch dangerous voltage points
or short-out parts that could result in a fire or electric
shock. Never spill liquid of any kind on the product.
17. ServicingDo not attempt to service this product yourself as
opening or removing covers may expose you to dan-
gerous voltage or other hazards. Refer all servicing to
qualified service personnel.
CAUTION: Please read all of these instructions before you operate this product and save these
instructions for later use.
Electrical energy can perform many useful functions. This product has been engineered and manufactured to
assure your personal safety. BUT IMPROPER USE CAN RESULT IN POTENTIAL ELECTRICAL SHOCK OR
FIRE HAZARDS. In order not to defeat the safeguards incorporated in this product, observe the following basic
rules for its installation, use and servicing. 
						

							Introduction
-7 18. Damage Requiring Service
Unplug this product from the wall outlet and refer
servicing to qualified service personnel under the
following conditions:
a. When the power-supply cord or plug is damaged.
b. If liquid has been spilled, or objects have fallen
into the product.
c. If the product has been exposed to rain or water.
d. If the product does not operate normally by
following the operating instructions. Adjust only
those controls that are covered by the operating
instructions, as an improper adjustment of other
controls may result in damage and will often
require extensive work by a qualified technician
to restore the product to normal operation.
e. If the product has been dropped or damaged in
any way.
f. When the product exhibits a distinct change in
performance, this indicates a need for service.
INTELLECTUAL PROPERTY RIGHTS
IMPORTANT
READ BEFORE USING THE PRODUCT
•You have acquired a product that includes software licensed to SHARP Corporation by Lineo, Inc. (“Lineo”).
The Software is protected by copyright laws, international copyright treaties, and other intellectual prop-
erty laws and treaties. Lineo and its suppliers retain all ownership of, and intellectual property rights in
(including copyright), the Software components and all copies thereof, provided however, that certain
components of the Software are components licensed under the GNU General Public License (version
2), which Lineo supports. You may obtain a copy of the GNU General Public License at http://www.fsf.org/
copyleft/gpl.html. Lineo will provide source code for any of the components of the Software licensed
under the GNU General Public License. To obtain such source code, send email to embedix-
[email protected].
•OS: Embedix (Embedded Linux) Embedix (TM) is a registered trademark of 
U.S.A. LINEO, Inc.
•Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or
other countries.
•PC/AT is a registered trademark of International Business Machines Corporation in the United States.
•Adobe Acrobat is a trademark of Adobe Systems Incorporated.
•Macintosh is a registered trademark of Apple Computer, Inc. in the United States and/or other countries.
•This software is based in part on the work of the Independent JPEG Group.
•All other company or product names are trademarks or registered trademarks of their respective compa-
nies.
19. Replacement PartsWhen replacement parts are required, be sure the
service technician has used replacement parts
specified by the manufacturer or have the same
characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or other
hazards.
20. Safety CheckUpon completion of any service or repairs to this
product, ask the service technician to perform safety
checks to determine that the product is in proper
operating condition.
21. Wall or Ceiling MountingThis product should be mounted to a wall or ceiling
only as recommended by the manufacturer.
22. HeatThis product should be situated away from heat sources
such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat. 
						

							-8
IMPORTANT SAFEGUARDS
Be sure to read the following safeguards when setting up
your projector.
Caution concerning the lamp unit
■Potential hazard of glass particles if
lamp ruptures. In case of lamp rupture,
contact your nearest Sharp Authorized
Projector Dealer or Service Center for
a replacement.
See “Replacing the Lamp” on page 85.
Cautions concerning the setup of the projector
■For minimal servicing and to maintain high image qual-
ity, SHARP recommends that this projector be installed
in an area free from humidity, dust and cigarette smoke.
When the projector is subjected to these environments,
the lens must be cleaned more often. As long as the
projector is regularly cleaned, use in these environ-
ments will not reduce the overall operation life of the
unit. Internal cleaning should only be performed  by a
Sharp Authorized Projector Dealer or Service Center.
Do not set up the projector in places exposed to
direct sunlight or bright light.
■Position the screen so that it is not in direct sunlight or
room light. Light falling directly on the screen washes
out the colors, making viewing difficult. Close the cur-
tains and dim the lights when setting up the screen in a
sunny or bright room.
The projector may safely be tilted to a maximum
angle of 12 degrees.
■Placement should be within ±12 degrees.
Do not subject the projector to hard impact and/
or vibration.
■Take care with the lens so as not to hit or damage the
surface of the lens.
Rest your eyes occasionally.
■Continuously watching the screen for long hours will
make your eyes tired. Be sure to occasionally rest your
eyes.
Avoid locations with high or low temperature.
■The operating temperature for the projector is from 41°F
to 104°F (+5°C to +40°C).
■The storage temperature for the projector is from
–4°F to 140°F (–20°C to +60°C).
Do not block the exhaust and intake vents.
■Allow at least 7.9 inches (20 cm) of space between the
exhaust vent and the nearest wall or obstruction.■Be sure that the intake vent and the exhaust vent are
not obstructed.
■If the cooling fan becomes obstructed, a protection cir-
cuit will automatically turn off the projector. This does
not indicate a malfunction. Remove the projector power
cord from the wall outlet and wait at least 10 minutes.
Place the projector where the intake and exhaust vents
are not blocked, plug the power cord back in and turn
on the projector. This will return the projector to the
normal operating condition.
Cautions regarding the transportation of the pro-
jector
■When transporting the projector, be sure not to subject
it to hard impact and/or vibration, as this can result in
damage. Take extra caution with the lens. Before mov-
ing the projector, be sure to unplug the power cord from
the wall outlet, and disconnect any other cables con-
nected to it.
Other connected equipment
■When connecting a computer or other audio-visual
equipment to the projector, make the connections AF-
TER turning off the projector and the equipment to be
connected.
■Please read the operation manuals of the projector and
the equipment to be connected for instructions on how
to make the connections.
Using the projector in other countries
■The power supply voltage and the shape of the plug
may vary depending on the region or country you are
using the projector in. When using the projector over-
seas, be sure to use the appropriate power cord for
the country you are in.
Temperature monitor function
■If the projector starts to overheat
due to setup problems or block-
age of the air vents, “
” and
“
” will blink in the lower left
corner of the picture. If the temperature continues to
rise, the lamp will turn off, the temperature warning in-
dicator on the projector will blink, and after a 90-sec-
ond cooling-off period the power will shut off. Refer to
“Maintenance Indicators” on page 83 for details.
Info
•The cooling fan regulates the internal temperature, and
its performance is automatically controlled. The sound
of the fan may change during projector operation due
to changes in the fan speed. This does not indicate
malfunction.
•Do not unplug the power cord during projection or cool-
ing fan operation. This can create damage due to the
rise in internal temperature, as the cooling fan also
stops.