Hitachi Cp-Rx78 Users Manual

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Projector
CP-RX78
User’s Manual (detailed) 
Operating Guide
Thank you for purchasing this projector.

SURGXFW%HVXUHWRUHDG³Safety Guide
						

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About The Symbols
  Various symbols are used in this manual, the user’s manual and on the product
itself to ensure correct usage, to prevent danger to the user and others, and to
prevent property damage. The meanings of these symbols are described below.
It is important that you read these descriptions thoroughly and fully understand
the contents. Projector
User's Manual - Safety Guide
Typical Symbols
  This symbol indicates an additional warning (including cautions). An
illustration is provided to clarify the contents.
  This symbol indicates a prohibited action. The contents will be clearly
indicated in an illustration or nearby (the symbol to the left indicates that
disassembly is prohibited).
  This symbol indicates a compulsory action. The contents will be clearly
indicated in an illustration or nearby (the symbol to the left indicates that
the power plug should be disconnected from the power outlet).
Thank you for purchasing this projector.
NOTE• The information in this manual is subject to change without notice.
• The manufacturer assumes no responsibility for any errors that may appear in
this manual.
• The reproduction, transmission or use of this document or contents is not
permitted without express written authority.
WARNING  • Before using, read these user's manuals of this projector to ensure 
correct usage through understanding. After reading, store them in a safe place for 
future reference. Incorrect handling of this product could possibly result in personal injury 
or physical damage. The manufacturer assumes no responsibility for any damage caused 
by mishandling that is beyond normal usage defined in these manuals of this projector.
WARNING
This symbol indicates information that, if ignored, could
possibly result in personal injury or even death due to
incorrect handling.
CAUTION
This symbol indicates information that, if ignored, could
result possibly in personal injury or physical damage
due to incorrect handling.
Read this Safety Guide first. 
						

							2
 Safety Precautions
WARNING
Never use the projector if a problem should occur.Abnormal operations such as smoke, strange odor, no image, no sound,
excessive sound, damaged casing or elements or cables, penetration of
liquids or foreign matter, etc. can cause a fire or electrical shock.
In such case, immediately turn off the power switch and then disconnect the
power plug from the power outlet. After making sure that the smoke or odor
has stopped, contact your dealer. Never attempt to make repairs yourself
because this could be dangerous.
• The power outlet should be close to the projector and easily accessible.
Use special caution for children and pets.Incorrect handling could result in fire, electrical shock, injury, burn or vision
problem.
Use special caution in households where children and pets are present.
Do not insert liquids or foreign object.Penetration of liquids or foreign objects could result in fire or electrical shock.
Use special caution in households where children are present.
If liquids or foreign object should enter the projector, immediately turn off the
power switch, disconnect the power plug from the power outlet and contact
your dealer.
• Do not place the projector near water (ex. a bathroom, a beach, etc.).
• Do not expose the projector to rain or moisture. Do not place the projector
outdoors.
• Do not place flower vases, pots, cups, cosmetics, liquids such as water, etc
on or around the projector.
• Do not place metals, combustibles, etc on or around the projector.
• To avoid penetration of foreign objects, do not put the projector into a case
or bag together with any thing except the accessories of the projector,
signal cables and connectors.
Never disassemble and modify.The projector contains high voltage components. Modification and/or disassembly of
the projector or accessories could result in fire or electrical shock.
• Never open the cabinet.
• Ask your dealer to repair and clean insider.
Do not give the projector any shock or impact.If the projector should be shocked and/or broken, it could result in an injury,
and continued use could result in fire or electrical shock.
If the projector is shocked, immediately turn off the power switch, disconnect
the power plug from the power outlet and contact your dealer.
Do not place the projector on an unstable surface.If the projector should be dropped and/or broken, it could result in an injury,
and continued use could result in fire or electrical shock.
• Do not place the projector on an unstable, slant or vibrant surface such as
a wobbly or inclined stand.
• Use the caster brakes placing the projector on a stand with casters.
• Do not place the projector in the side up position, the lens up position or
the lens down position.
• In the case of a ceiling installation or the like, contact your dealer before
installation.
Disconnect the
plug from the
power outlet.
Do not
disassemble. 
						

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WARNING
Be cautious of High temperatures of the projector.High temperatures are generated when the lamp is lit. It could result in fire or
burn. Use special caution in households where children are present.
Do not touch about the lens, air fans and ventilation openings during use or
immediately after use, to prevent a burn. Take care of ventilation.
• Keep a space of 30 cm or more between the sides and other objects such
as walls.
• Do not place the projector on a metallic table or anything weak in heat.
• Do not place anything about the lens, air fans and ventilation openings of
the projector.
• Never block the air fan and ventilation openings.
• Do not cover the projector with a tablecloth, etc.
• Do not place the projector on a carpet or bedding.
Never look through the lens or openings when the lamp is on.The powerful light could adversely affect vision.
Use special caution in households where children are present.
Use only the correct power cord and the correct power outlet.Incorrect power supply could result in fire or electrical shock.
• Use only the correct power outlet depending on the indication on the
projector and the safety standard.
• The enclosed power cord must be used depending on the power outlet to
be used.
Be cautious of the power cord connection.Incorrect connection of the power cord could result in fire or electrical shock.
• Do not touch the power cord with a wet hand.
• Check that the connecting portion of the power cord is clean (with no dust),
before using. Use a soft and dry cloth to clean the power plug.
• Insert the power plug into a power outlet firmly. Avoid using a loose,
unsound outlet or contact failure.
Be sure to connect with ground wire.Connect the ground terminal of AC inlet of this unit with the ground terminal
provided at the building using the correct power cord; otherwise, fire or
electric shock can result.
• Don’t take the core of power cord away.
 Safety Precautions (continued)
Surely connect
the ground wire. 
						

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WARNING
Be careful in handling the light source lamp.The projector uses a high-pressure mercury glass lamp made of glass.
The lamp can break with a loud bang, or burn out. When the bulb bursts,
it is possible for shards of glass to fly into the lamp housing, and for gas
containing mercury to escape from the projector’s vent holes.
Please carefully read the section “Lamp”.
Be careful in handling the power cord and external connection 
cables.
If you keep using a damaged the power cord or cables, it can cause a fire
or electrical shock. Do not apply too much heat, pressure or tension to the
power cord and cables.
If the power cord or cables is damaged (exposed or broken core wires, etc.),
contact your dealer.
• Do not place the projector or heavy objects on the power cord and cables.
Also, do not place a spread, cover, etc, over them because this could result
in the inadvertent placing of heavy objects on the concealed power cord or
cables.
• Do not pull the power cord and cables. When connecting and
disconnecting the power cord or cables, do it with your hand holding the plug
or connector.
• Do not place the cord near the heater.
• Avoid bending the power cord sharply.
• Do not attempt to work on the power cord.
Be careful in handling the battery of the remote control.Incorrect handling of the battery could result in fire or personal injury. The
battery may explode if not handled properly.
• Keep the battery away from children and pets. If swallowed consult a
physician immediately for emergency treatment.
• Do not allow the battery in a fire or water.
• Avoid fire or high-temperature environment.
• Do not hold the battery with the metallic tweezers.
• Keep the battery in a dark, cool and dry play.
• Do not short circuit the battery.
• Do not recharge, disassemble or solder the battery.
• Do not give the battery a physical impact.
• Use only the battery specified in the other manual of this projector.
• Make sure the plus and minus terminals are correctly aligned when loading
the battery.
• If you observe a leakage of the battery, wipe out the flower and then
replace the battery. If the flower adheres your body or clothes, rinse well with
water.
• Obey the local laws on disposing the battery.
 Safety Precautions (continued) 
						

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 Safety Precautions (continued)
CAUTION
Be careful in moving the projector.Neglect could result in an injury or damage.
• Do not move the projector during use. Before moving, disconnect the
power cord and all external connections, and close the slide lens door or
attach the lens cap.
• Avoid any impact or shock to the projector.
• Do not drag the projector.
• For moving the projector, use the enclosed case or bag if provided.
Do not put anything on top of the projector.Placing anything on the projector could result in loss of balance or falling,
and cause an injury or damage. Use special caution in households where
children are present.
Do not attach anything other than specified things to the projector.Neglect could result in an injury or damage.
• Some projector has a screw thread in a lens part. Do not attach anything
other than specified options (such as conversion lens) to the screw thread.
Avoid a smoky, humid or dusty place.Placing the projector in a smoke, a highly humid, dusty place, oily soot or
corrosive gas could result in fire or electrical shock.
• Do not place the projector near a smoky, humid or dusty place (ex.
a smoking space, a kitchen, a beach, etc.). Do not place the projector
outdoors.
• Do not use a humidifier near the projector.
Take care of the air filter to normal ventilate.The air filter should be cleaned periodically. If the air filter becomes clogged
by dust or the like, internal temperature rises and could cause malfunction.
The projector may display the message such as “CHECK THE AIR FLOW”
or turn off the projector, to prevent the internal heat level rising.
• When the indicators or a message prompts you to clean the air filter, clean
the air filter as soon as possible.
• If the soiling will not come off the air filter, or it becomes damaged, replace
the air filter.
• Use the air filter of the specified type only. Please order the air filter
specified in the other manual of this projector to your dealer.
• When you replace the lamp, replace also the air filter. The air filter may be
attached when you buy a replacement lamp for this projector.
• Do not turn on the projector without air filter.
Avoid a high temperature environment.The heat could have adverse influence on the cabinet of the projector and
other parts. Do not place the projector, the remote control and other parts in
direct sunlight or near a hot object such as heater, etc.
Avoid Magnetism. Manufacture strongly recommends to avoid any magnetic contact that is not
shielded or protected  on or near the projector itself.  (ie.,. Magnetic Security
Devices, or other projector accessory that contains magnetic material that has not
been provided by the manufacture etc.) Magnetic objects may cause interruption
of the projector's internal mechanical performance which may interfere with cooling
fans speed or stopping, and may cause the projector to completely shut down
. 
						

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 Safety Precautions (continued)
NOTE
Do not give the remote control any physical impact.A physical impact could cause damage or malfunction of the remote control.
• Take care not to drop the remote control.
• Do not place the projector or heavy objects on the remote control.
Take care of the lens.• Close the slide lens door or attach the lens cap to prevent the lens surface being
scratched when the projector is not used.
• Do not touch the lens to prevent fog or dirt of the lens that cause deterioration of display
quality.
• Use commercially available lens tissue to clean the lens (used to clean cameras,
eyeglasses, etc.). Be careful not to scratch the lens with hard objects.
Take care of the cabinet and the remote control. Incorrect care could have adverse influence such as discoloration, peeling paint, etc.
• Use a soft cloth to clean the cabinet and control panel of the projector and the remote
control. When excessively soiled dilute a neutral detergent in water, wet and wring out the
soft cloth and afterward wipe with a dry soft cloth. Do not use undiluted detergent directly.
• Do not use an aerosol sprays, solvents, volatile substances or abrasive cleaner.
• Before using chemical wipes, be sure to read and observe the instructions.
• Do not allow long-term close contact with rubber or vinyl.
About bright spots or dark spots.Although bright spots or dark spots may appear on the screen, this is a unique characteristic of
liquid crystal displays, and such do not constitute or imply a machine defect.
Be careful of printing of the LCD panel.If the projector continues projecting a still image, inactive images or 16:9 aspect images  in
case of 4:3 panel, etc., for long time, the LCD panel might possibly be printed.
CAUTION
Remove the power cord for complete separation. • For safety purposes, disconnect the power cord if the projector is not to be
used for prolonged periods of time.
• Before cleaning, turn off and unplug the projector. Neglect could result in
fire or electrical shock.
Ask your dealer to cleaning inside of the projector about every 
year.
Accumulations of dust inside the projector cause result in fire or malfunction.
Cleaning inside is more effective if performed before every humid periods
such as rainy season.
• Do not clean inside yourself because it is dangerous.
Disconnect the
plug from the
power outlet. 
						

							7
Safety Precautions (continued)
NOTE
About consumables. Lamp, LCD panels, polarizors and other optical components, and air filter and cooling fans
have a different lifetime in each. These parts may need to be replaced after a long usage
time.
• This product isn’t designed for continuous use of long time. In the case of continuous use
for 6 hours or more, or use for 6 hours or more every day (even if it isn’t continuous), or
repetitious use, the lifetime may be shortened, and these parts may need to be replaced
even if one year has not passed since the beginning of using.
• Any inclining use beyond the adjustment range explained in these user’s manuals may
shorten the lifetimes of the consumables.
Before turning on the power, make the projector cool down adequately.After turning the projector off, pushing the restart switch or interrupting of the power supply,
make the projector cool down adequately. Operation in a high temperature state of the
projector causes a damage of the electrode and un-lighting of the lamp.
Avoid strong rays.Any strong ray (such as direct rays of the sun or room lighting) onto the remote control  
sensors could invalidate the remote control.
Avoid radio interference.Any interfering radiation could cause disordered image or noises.
• Avoid radio generator such as a mobile telephone, transceiver, etc. around the projector.
About displaying characteristic.The display condition of the projector (such as color, contrast, etc.) depends on
characteristic of the screen, because the projector uses a liquid crystal display panel. The
display condition can differ from the display of CRT.
• Do not use a polarized screen. It can cause red image.
Turn the power on/off in right order.To prevent any trouble, turn on/off the projector in right order mentioned below unless
specifying.
• Power on the projector before the computer or video tape recorder.
• Power off the projector after the computer or video tape recorder.
Take care not to fatigue your eyes.Rest the eyes periodically.
Set the sound volume at a suitable level to avoid bothering other people.• It is better to keep the volume level low and close the windows at night to protect the
neighborhood environment.
Connecting with notebook computerWhen connecting with notebook computer, set to valid the RGB external image output
(setting CRT display or simultaneous display of LCD and CRT).
Please read instruction manual of the notebook for more information. 
						

							8• If the lamp should break (it will make a loud bang when it does), unplug
the power cord from the outlet, and make sure to request a replacement
lamp from your local dealer. Note that shards of glass could damage the
projector’s internals, or cause injury during handling, so please do not try to
clean the projector or replace the lamp yourself.
• If the lamp should break (it will make a loud bang when it does), ventilate
the room well, and make sure not to breathe the gas that comes out of the
projector vents, or get it in your eyes or mouth.
• Before replacing the lamp, make sure the power switch is off and the
power cable is not plugged in, then wait at least 45 minutes for the lamp to
cool sufficiently. Handling the lamp while hot can cause burns, as well as
damaging the lamp.
 Lamp
The projector uses a high-pressure mercury glass lamp. The lamp canbreak with a 
loud bang, or burn out,if jolted or scratched, handled while hot, or worn over time.
Note that each lamp has a different lifetime, and some may burst or burn out soon after
you start using them. In addition, when the bulb bursts, it is possible forshards of 
glassto fly into the lamp housing, and forgas containing mercuryto escape from the
projector’s vent holes.
About disposal of a lamp• This product contains a mercury lamp; do not put in trash.
Dispose of in accord with environmental laws.
For lamp recycling, go to www.lamprecycle.org. (in USA)
For product disposal, contact your local government agency or www.eiae.org (in the US)
or www.epsc.ca (in Canada).
For more information, call your dealer.
• Do not open the lamp cover while the projector is suspended from above.
This is dangerous, since if the lamp’s bulb has broken, the shards will
fall out when the cover is opened. In addition, working in high places is
dangerous, so ask your local dealer to have the lamp replaced even if the
bulb is not broken.
• Do not use the projector with the lamp cover removed. At the lamp
replacing, make sure that the screws are screwed in firmly. Loose screws
could result in damage or injury.
• Use the lamp of the specified type only.
• If the lamp breaks soon after the first time it is used, it is possible that
there are electrical problems elsewhere besides the lamp. If this happens,
contact your local dealer or a service representative.
• Handle with care: jolting or scratching could cause the lamp bulb to burst
during use.
• Using the lamp for long periods of time, could cause it dark, not to light up
or to burst. When the pictures appear dark, or when the color tone is poor,
please replace the lamp as soon as possible. Do not use old (used) lamps;
this is a cause of breakage.
WARNINGHIGH VOLTAGE    HIGH TEMPERATURE    HIGH PRESSURE
Disconnect
the plug from
the power
outlet 
						

							9
 Regulatory Notices
FCC Statement Warning
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.
WARNING: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.
INSTRUCTIONS TO USERS:This equipment complies with the requirements of FCC
(Federal Communication Commission) equipment provided that the following conditions
are met. Some cables have to be used with the core set. Use the accessory cable or a
designated-type cable for the connection. For cables that have a core only at one end,
connect the core to the projector.
CAUTION:Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
For the Customers in CANADA
NOTICE:This Class B digital apparatus complies with Canadian ICES-003.
 Warranty And After-Service
Unless seen any abnormal operations (mentioned with the first paragraph of
WARNING in this manual), when a problem occurs with the equipment, first refer to the
“Troubleshooting” section of the “Operating Guide”, and run through the suggested checks.
If this does not resolve the problem contact your dealer or service company. They will tell
you what warranty condition is applied.