Christie Projector LW751i User Manual

							11 0LWU701i/LW751i/LX801i/LWU601i/LW651i
User's Manual - Operating Guide020-000786-02
LIT MAN USR D2
Maintenance
Check and clean the air fi lter periodically. When the indicators or a message 
prompts you to clean the air fi lter, comply with it as soon as possible.
The fi lter unit with two sheets of fi lters is inside of the fi lter cover. The extra air fi lter 
is attached to inner side of the fi lter cover. If one of the fi lters is damaged or heavily 
soiled, replace whole fi lter set with a new one.
Request for a fi lter set with the following type number from your dealer when 
purchasing a new one.
Type number : 003-005339-01 (UX40821)
1. Turn the projector off, and unplug the power cord. Allow the projector to suffi ciently cool 
down.
2. Use a vacuum cleaner on and around the 
fi lter cover.
3. Pick and pull up the fi lter cover knobs to 
take it off.
4.  Press up slightly on the bottom side 
knobs to unlock the bottom side of the 
fi lter unit. Pull the center knob to take the 
fi lter unit off.
5. Use a vacuum cleaner to clean the fi lter 
vent of the projector and the outer side of 
the fi lter unit.
6.  The fi lter unit consists of two parts. Press 
down around the interlocking parts to 
unlock, then separate the two parts.
7. Use a vacuum cleaner to clean the inner 
side of each part of the fi lter unit to clean 
them up. If the fi lters are damaged or 
heavily soiled, replace them with the new 
ones.
8. Combine the two parts to reassemble the 
fi lter unit.
9. Put the fi lter unit back into the projector.
(continued on next page) 
Filter cover
Filter cover 
knobs
2
3
Filter unit
Filter unit 
knobs
4, 5
6
7
Extra 
air fi lter
Cleaning and replacing the air fi lter
Interlocking
Parts 
						

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LIT MAN USR D2
Maintenance
► Before taking care of the air filter, make sure the power cable 
is not plugged in, then allow the projector to cool sufficiently.
►Use only the air filter of the specified type. Do not use the projector without the 
air filter or the filter cover. It could result in a fire or malfunction to the projector.
►Clean the air filter periodically. If the air filter becomes clogged by dust or the 
like, internal temperatures rise and could cause a fire, a burn or malfunction to 
the projector. WARNING
• Reset the filter hours only when you have cleaned or replaced the air 
filter, for a suitable indication about the air filter.
• The projector may display the message such as the “CHECK THE AIR FLOW” 
or turn off the projector, to prevent the internal heat level rising. NOTE
Cleaning and replacing the air filter  (continued)
10. Put the filter cover back into the place.
11
. Turn the projector on and reset the filter hours using the FILTER HOURS 
item in the EASY MENU.
(1)  Press the MENU button to display a menu.
(2)  Point at the FILTER HOURS using the ▲/▼ cursor buttons, then press  the ► cursor (or the ENTER / the  RESET) button. A dialog appears.
(3)  Press the ► cursor button to select the “OK” on the dialog. It performs  resetting the filter hours. 
						

							11 2LWU701i/LW751i/LX801i/LWU601i/LW651i
User's Manual - Operating Guide020-000786-02
LIT MAN USR D2
Replacing the internal clock batter y
Replace a battery according to the following procedure.
WARNING  ►Always handle the batteries with care and use them only as 
directed. Battery may explode if mistreated. Do not recharge, disassemble or 
dispose of in fire. 
 
Improper use may result in cracking or leakage, which could result in fire, injury 
and/or pollution of the surrounding environment.
・   Be sure to use only the batteries specified.
・ Make sure the plus and minus terminals are correctly aligned when loading a battery.
・  
 Keep a battery away from children and pets. If swallowed consult a physician 
immediately for emergency treatment.
・  Do not short circuit or solder a battery.
・  Do not allow a battery in a fire or water. Keep batteries in a dark, cool and dry place.
・  
 If you observe battery leakage, wipe out the leakage and then replace a battery. If the 
leakage adheres to your body or clothes, rinse well with water immediately.
・  Obey the local laws on disposing a battery.
1.  Turn the projector off, and unplug the power cord. Allow the 
projector to cool sufficiently.
2.  After making sure that the projector has cooled adequately, 
slowly turn over the projector, so that the bottom is facing 
up.
3.   Turn the battery cover fully in the direction indicated “OPEN” 
using a coin, and pick the cover up to remove it.
4.  Pry up the battery using a flathead screwdriver to take it 
out. While prying it up, put a finger lightly on the  
battery as it may pop out of the holder. 
5.  Replace the battery with a new  HITACHI MAXELL,  
Part No.CR2032  or CR2032H.  
Slide the battery in under the plastic claw, and push it 
into the holder until it clicks. 
6.  Replace the battery cover in place, then turn it in the 
direction indicated “ CLOSE” using a coin. 
OPEN
CLOSE
OPEN
CLOSE
OPEN
CLOSEÃ
OPEN
CLOSE
Ã
Battery Cover
Maintenance 
						

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LIT MAN USR D2
Maintenance
Other care
To ensure the safe use of your projector, have it cleaned and inspected by your 
dealer every year.
1.Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
2.After making sure that the projector is cool adequately, lightly wipe the lens 
with a commercially available lens-cleaning wipe. Do not touch the lens 
directly with your hand.
If the lens is flawed, soiled or fogged, it could cause deterioration of display 
quality. Take care of the lens, being cautious of handling.
►Make sure the power cord is not plugged in, and allow the 
projector to cool sufficiently. The high temperature state of the projector could 
cause a burn and/or malfunction to the projector.
►Do not clean or service the inside of the projector. Doing is so dangerous. 
►Avoid wetting the projector or inserting liquids in the projector. It could result in 
a fire, an electric shock, and/or malfunction to the projector. 
•  Do not put anything containing water, cleaners or chemicals near the projector. 
•  Do not use aerosols or sprays. WARNING
►Incorrect care of the projector could cause not only an injury 
but adverse influence such as discoloration, peeling paint, etc. 
►Do not use cleaners or chemicals other than those specified in this manual. 
►Do not polish or wipe with hard objects.
NOTICE ►Do not directly touch the lens surface with hands. CAUTION
Inside of the projector
Caring for the lens
1.Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
2.After making sure that the projector is cool adequately, lightly wipe with gauze 
or a soft cloth. 
If the projector is extremely dirty, dip a soft cloth in water or a neutral cleaner 
diluted in water, and wipe lightly after wringing well. Then, wipe lightly with a 
soft, dry cloth.
Incorrect care could have adverse influence such as discoloration, peeling paint, 
etc. Caring for the cabinet and remote control 
						

							11 4LWU701i/LW751i/LX801i/LWU601i/LW651i
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LIT MAN USR D2
Troubleshooting
Troubleshooting
If an abnormal operation should occur, stop using the projector immediately.
If a problem occurs with the projector, the following checks and measures are 
recommended before requesting repair. 
If this does not resolve the problem, contact your dealer or service company. They  
tell you what warranty condition is applied.
►Never use the projector if abnormal operations such as 
smoke, strange odor, excessive sound, damaged casing or elements or cables, 
penetration of liquids or foreign matter, and so on should occur. In such cases, 
immediately disconnect the power plug from the power outlet. After making sure 
that the smoke or odor has stopped, contact to your dealer or service company. WARNING
Related messages
When some messages appear, check and deal with it according to the following 
table. Although these messages automatically disappear after several minutes, 
they reappear when the power is turned on.
Message
Description
There is no input signal. 
Confirm the signal input connection, and the status of 
the signal source.
Projector is waiting for an image file.
Check the hardware connection, settings on the projector 
and network-related settings.
The computer-Projector network connection might be 
disconnected. Re-connect them.
(continued on next page)
Troubleshooting
Warnings displayed on the Status Monitor
If an error occurs, a warning is displayed on the Status Monitor  (31) . Resolve the 
errors referring to the table of the sections "Related messages" and "Regarding 
the indicator lamps" when the warning is displayed. 
						

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LIT MAN USR D2
Message Description
The horizontal or vertical frequency of the input 
signal is not within the specified range.
Confirm the specs for your projector or the signal source 
specs.
An improper signal is input. 
Confirm the specs for your projector or the signal source 
specs.
The internal temperature is rising. 
Turn the power off, and allow the projector to cool down 
at least 20 minutes. After having confirmed the following 
items, turn the power ON again. 
 • Is there blockage of the air passage aperture? 
 • Is the air filter dirty? 
 •  Use the unit within the usage temperature parameters  (0°C to 40°C or 45°C (
 User's Manual (concise))).
 • Is the setting for ALTITUDE appropriate? 
 •  Is the exhaust air (hot/cold) from peripheral  equipments blowing against the ventilation opening of 
projector?
For details of ALTITUDE, refer to ALTITUDE of SERVICE 
in the OPTION menu (
 93). If the projector is used with 
a wrong setting, it may cause damage to the projector 
itself or the parts inside.
(continued on next page)
Troubleshooting
Related messages (continued) 
						

							11 6LWU701i/LW751i/LX801i/LWU601i/LW651i
User's Manual - Operating Guide020-000786-02
LIT MAN USR D2
Troubleshooting
Message Description
A note of precaution when cleaning the air filter. 
Immediately turn the power off, and clean or change the 
air filter referring to the Cleaning and replacing the air 
filter section of this manual. After you have cleaned or 
changed the air filter, reset the filter timer (
 76, 11 0
).
The button operation is not available.
Check the button you want to use (
7).
Related messages (continued) 
						

							11 7LWU701i/LW751i/LX801i/LWU601i/LW651i
User's Manual - Operating Guide020-000786-02
LIT MAN USR D2
Troubleshooting
Indicator Status Description
The projector is in a standby state.
Refer to the section “Power on/off”.
The projector is warming up.
Wait for the projector to warm up.
The projector is in an on state.
Ordinary operations may be performed.
The projector is cooling down.
Wait for the projector to cool down.
(continued on next page)
Regarding the indicator lamps
The indicators may differ from this manual, check and deal with it according to the 
following table. The indicators are described as below.
Lit
Steady light Blinking
Off
Regarding the indicator lamps
Orange
Green
OrangeGreen 
						

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LIT MAN USR D2
Regarding the indicator lamps
Regarding the indicator lamps (continued)
Indicator Status Description
The projector is cooling down. A certain error 
has been detected.
Wait until POWER indicator finishes blinking, and 
then perform the proper measure using the item 
descriptions below.
The lamp cover has not been properly fixed.
Turn the power off, and allow the projector to cool 
down at least 45 minutes. After the projector has 
sufficiently cooled down, confirm the attachment 
state of the lamp cover. After performing any needed 
maintenance, turn the power on again. If the same 
indication is displayed after the remedy, contact your 
dealer or service company.
The cooling fan is not operating.
Turn the power off, and allow the projector to cool 
down at least 20 minutes. After the projector has 
sufficiently cooled down, confirm that no foreign 
matter has become caught in the fan, and so on and 
then turn the power on again.
If the same indication is displayed after the remedy, 
contact your dealer or service company.
The lamp does not light, and there is a 
possibility that interior portion has become 
heated.
Turn the power off, and allow the projector to cool 
down at least 20 minutes. After the projector has 
sufficiently cooled down, confirm the following items, 
and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
•  Use the unit within the temperature range.  NORMAL MODE: 0 to 40°C 
ECO MODE: 0 to 45°C 
If the same indication is displayed after the remedy, 
change the lamp referring to the section  Replacing 
the lamp.
(continued on next page)
Red
Red
descretionary
Red
Red
Red Red
Red 
						

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User's Manual - Operating Guide020-000786-02
LIT MAN USR D2
Regarding the indicator lamps
Regarding the indicator lamps (continued)
Indicator Status Description
The interior portion has become heated.
Turn the power off, and allow the projector to cool 
down at least 20 minutes. After the projector has 
sufficiently cooled down, confirm the following items, 
and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
•  Use the unit within the temperature range.  NORMAL MODE: 0 to 40°C 
ECO MODE: 0 to 45°C 
•  Is the setting for ALTITUDE appropriate?
•  Is the exhaust air (hot/cold) from peripheral   equipments blowing against the ventilation opening 
of projector?
For details on ALTITUDE, refer to ALTITUDE of 
SERVICE in the OPTION menu. If the projector is 
used with a wrong setting, it may cause damage to 
the projector itself or the parts inside.
It is time to clean the air filter.
Turn the power off immediately, and clean or change 
the air filter referring to the section  Cleaning and 
replacing the air filter . After cleaning or changing 
the air filter, reset the filter timer.  
After the remedy, restart the projector.
This is a Lamp Error.
Lamp is turned off.
Turn the power off, and allow the projector to cool 
down at least 45 minutes.  
Restart the projector.
If the same indication is displayed 
after the remedy, 
contact your dealer or service company.
Other error has occured.
•  Use the unit within the temperature range.  NORMAL MODE: 0 to 40°C 
ECO MODE: 0 to 45°C 
If the same indication is displayed after the remedy, 
contact your dealer or service company.
(continued on next page)
Red Red Red
Red
RedRed
Red
Blinking at the 
same timeBlinking 
alternatelyBlinking at the 
same time or