Справочник Пользователя для Mitsubishi Electronics XL2550U

EN-38

This projector is equipped with a lamp to project images. This lamp is a consumable. It may burn out or its brightness 
may decrease during use. In such cases, replace the lamp with a new one as soon as possible. Be sure to replace the 
lamp with a new lamp separately sold that is exclusive to this projector. Contact your dealer for purchase of the lamp. 

Spare lamp for XL2550U: VLT-XL650LP
Spare lamp for XL1550U: VLT-XL550LP

Warning:
•  Be careful not to drop the lamp fi xing screws into the inside of the projector. Don’t put a metal piece or fl ammable 

object into the projector. Using the projector with any foreign object present inside may result in electric shock or 
fi re. When you can’t remove the foreign object from the inside, contact your dealer for removal. 

•  Be sure to install the lamp securely. When the lamp isn’t installed properly, it won’t illuminate. Improper installation 

may also result in fi re.

•  Don’t shake the removed lamp or don’t lift it above your face. You may be injured in your eye by fl ying or falling 

glass fragments.

•  Don’t replace the lamp immediately after use because the lamp cover is very hot. You may get burned. Turn off the 

power using the POWER button. After the lamp goes out, wait about 2 minutes until the intake and exhaust fans 
for cooling the lamp stop rotating. Then unplug the power cord, and wait at least 1 hour to allow the lamp to cool 
down enough to the touch.

•  Do not touch the lamp directly. It may break and cause injury or burn.

Interval of lamp replacement
The recommended interval of lamp replacement is about 4000 or 5000 hours

*1

 of consecutive use. Such interval 

differs depending on the operating environment and may be shorter. Decrease in luminescence and/or color 
brightness indicates that the lamp needs to be replaced. When the lamp operation time exceeds the time elapsed 
until the lamp shutdown notice

*1

 is issued, the indicator will blink alternately between green and red (while the lamp 

is lit; when the lamp is not lit, the indicator will be lit red only) and the lamp replacement message will appear on the 
screen for 1 minute everytime the lamp is turned on. When the lamp operation time exceeds the time elapsed until 
the lamp shutdown warning

*1

 is issued, the replacement message (LAMP EXCHANGE) will appear on the screen for 

1 minute at fi xed intervals

*1

 thereafter. When the lamp operation time exceeds the time elapsed until the lamp 

*1:

XL2550U

XL1550U

Time elapsed until the lamp shutdown notice

3000 hours

3750 hours

Time elapsed until the lamp shutdown warning

3800 hours

4750 hours

Time elapsed until the lamp shutdown

4000 hours

5000 hours

Interval of displaying the lamp replacement message

    20 hours

    25 hours

•  The times above are when LAMP MODE of the INSTALLATION menu is set to LOW. When it is set to STAND-

ARD, this duration will be shorted.

•  When LAMP MODE is set to STANDARD, the time elapsed until the lamp shutdown will be shorted to 2000 hours.

Caution:
•  Don’t remove the lamp for any purpose other than replacement. Unnecessary removal of the lamp may result in a 

breakdown.

•  This projector uses a high-pressure mercury lamp as the light source. The high-pressure mercury lamp may 

explode or fail to illuminate permanently because of an impact, scratch, or deterioration through use. The period 
of time until explosion or permanent failure to illuminate varies considerably from lamp to lamp, depending on 
operation conditions. Therefore, the lamp may explode soon after the start of use. 

•  The possibility of explosion of the lamp increases if you use it beyond its replacement period. When the instruction 

of lamp replacement appears, replace it with a new one immediately even if the lamp is still lighting normally. 

•  When the high-pressure mercury lamp explodes, glass fragments will scatter inside or outside the lamp box and 

the gas charged inside the lamp will diffuse inside or outside the projector. The gas inside the lamp contains 
mercury. Be careful not to breathe it or avoid it from entering your eye or mouth. If you should breathe it or if it 
should enter your eye or mouth, see a doctor immediately.

•  In the event that the high-pressure mercury lamp exploded, glass fragments may have been scattered inside the 

projector. Ask your dealer to replace the lamp and to inspect the inside of the projector. When you clean or replace 
the lamp by yourself, be sure to hold the handle of the lamp. You may get injured by glass fragments. 

•  When removing the lamp from the ceiling-mounted projector, use the lamp replacement tray packed with the 

projector or option lamp to prevent glass fragments from scattering. 

•  Be sure to use the lamp exclusive to this projector, VLT-XL650LP for XL2550U (or VLT-XL550LP for XL1550U). Use 

of other lamps may cause a failure of the projector.