Replacing The Lamp - BenQ MP721 - XGA DLP Projector User Manual

Lamp usage time exceeded
Replace lamp (refer to User Manual)
Then reset the lamp usage timer

Replacing the lamp

• To reduce the risk of electrical shock, always turn the projector off and disconnect the
power cord before changing the lamp.
• To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes
before replacing the lamp.
• To reduce the risk of injuries to fingers and damage to internal components, use caution
when removing lamp glass that has shattered into sharp pieces.
• To reduce the risk of injuries to fingers and/or compromising image quality by touching
the lens, do not touch the empty lamp compartment when the lamp is removed.
• This lamp contains mercury. Consult your local hazardous waste regulations to dispose
of this lamp in a proper manner.
1. Turn the power off and disconnect the projector from the wall socket. If the lamp is
hot, avoid burns by waiting for approximately 45 minutes until the lamp has cooled.
2. Turn the projector over. Then loosen the
screws on the lamp cover.
48 Maintenance
Notice: Replace lamp now
Lamp > 4000 Hours
Lamp usage time exceeded
Total (equivalent) lamp hour has reached 4000 hours.
This message will flash in the center of the screen for
about 30 seconds together with the Lamp indicator
lighting up red for 40 seconds.
It is strongly recommended that you replace the lamp
at this age. The lamp is a consumable item. With the
usage time increase, the lamp brightness diminished
gradually. This is normal lamp behaviour. You can
replace the lamp whenever you notice that the
brightness level has significantly diminished. If the
lamp is not replaced beforehand, it must be replaced
after 4000 hours usage.
If this warning message displays, the projector will
shut down in 40 seconds. The lamp MUST be
replaced before the projector will operate normally.