Maintenance/replacement
58
- ENGLISH
Maintenance
Lamp use time = ([Lamp Hours Used (Normal)] × 60 + [Lamp Hours Used (ECO)] ×
α
) ÷ 60
When setting under both [Normal] and [ECO1]/[ECO2], not using [AUTO]:
α
= 45
When setting under both [Normal] and [AUTO], not using [ECO1]/[ECO2]:
α
=24
When setting under both [ECO1]/[ECO2] and [AUTO]: 24 ˂
α
˂ 45
The ratio of
α
will be smaller if the used time of [AUTO] is more than that of [ECO1]/[ECO2].
Replacing the Lamp unit
J
Attention
When the projector is mounted on a ceiling, do not work with your face close to the projector.
z
Attach the lamp unit and the lamp cover securely.
z
When you experience difficulty in installing the lamp, remove it and try again. If you use force to install the lamp, the
z
connector may be damaged.
Do not loosen other than designated screws.
z
Lamp cover screw
Handle
Lamp unit screws
Lamp cover
Turn off the power by following the procedure in "Powering off the projector".
1 )
(
Æ
page 30). Remove the AC power plug from the wall outlet. Wait at least 1 hour and
make sure the lamp unit and surroundings are cool.
Use a Phillips screwdriver to loosen the lamp cover screw and open the lamp cover.
2 )
Open the lamp cover by pulling it slowly toward the direction of the arrow.
z
Use a Phillips screwdriver to loosen the two lamp unit screws until the screws turn
3 )
freely. Pull up the handle, and pull out the lamp unit gently.
Insert the new lamp unit in correct direction. Tighten the two lamp unit screws
4 )
securely with a Phillips screwdriver.
Close the lamp cover, and tighten the lamp cover screw securely with a Phillips
5 )
screwdriver.
J
Reset the Lamp Hours Used
After replacing the lamp unit, make sure to reset the usage time in the [Clear Lamp Hours] menu. (
Æ
page 45)
