f When replacing the lamp unit, be sure to hold it by the handle.
f When replacing the lamp because it has stopped illuminating, there is a possibility that the lamp may be broken. If replacing
the lamp of a projector which has been installed on the ceiling, you should always assume that the lamp is broken, and you
should stand to the side of the lamp cover, not underneath it. Remove the lamp cover gently. Small pieces of glass may fall
out when the lamp cover is opened. If pieces of glass get into your eyes or mouth, seek medical advice immediately.
f The lamp may be ruptured. Care should be taken not to scatter pieces of the broken lamp glass when replacing the lamp
unit. Pieces of the broken lamp may fall from the lamp unit especially when the projector is mounted on the ceiling, so when
replacing the lamp unit do not stand directly underneath it or position your face close to it.
f The lamp contains mercury. Consult your local municipality or your dealer about correct disposal of used lamp units.
Attention
f Panasonic takes no responsibility for any damage or malfunction of the product resulting from use of lamp units which are
not manufactured by Panasonic. Use only specied lamp units.
Note
f The model numbers of accessories and optional accessories are subject to change without prior notice.
When to replace the lamp unit
The lamp unit is a consumable component. Since its brightness gradually decreases over time, it is necessary to replace the
lamp unit regularly.
Time for replacement
When [LAMP POWER] is constantly set to [NORMAL] without switching to other modes = 5 000 hours
When [LAMP POWER] is constantly set to [ECO] without switching to other modes = 7 000 hours
but the lamp may go off before the time above mentioned has elapsed depending on individual lamp characteristics, usage
conditions, and the installation environment. It is recommended that the Replacement lamp unit be prepared earlier.
In order to predict the lamp replacement time, please refer to the lamp runtime displayed in [STATUS] (x page 78) →
[RUNTIME] → [LAMP] → [NORMAL] / [ECO]. It also can be obtained by using the following formula. (The time which is
displayed in [ECO] is the converted usage time when set to [NORMAL].)
Formula for lamp replacement time (rough estimate) = “Lamp runtime of [NORMAL]” + “Lamp runtime of [ECO]” × 5/7
If the time which is obtained by the above equation 5 000 hours has elapsed, the lamp turns off automatically after
approximately 10 minutes, as it will cause malfunction of the projector.
Time which is ob-
tained by the above
equation
On-screen display
REPLACE LAMP
Lamp indicator <LAMP>
Over 4 800 hours
The message is displayed for 30 seconds. If you press any
button within the 30 seconds, the message disappears.
Lights in red (even in stand-by mode).
Over 5 000 hours
If the power is turned on without replacing the lamp, the
power automatically turns off after approximately ten min-
utes to prevent the malfunction of the projector.
Note
f The time which is obtained by the formula for lamp replacement time “5 000 hours” is a rough guideline, but is not a
guarantee. The lamp runtime differs depending on the setting of "LAMP POWER" menu.
Replacing the Lamp unit
Attention
f When the projector is mounted on a ceiling, do not work with your face close to the projector.
f Do not loosen other than designated screws.
f Attach the lamp unit and the lamp cover securely.
1) Turn off the Power by following the procedure in "Powering Off the Projector". (
Æ
page 44)
Remove the AC power plug from the wall outlet.
f Wait at least 1 hour and make sure the lamp unit and surroundings are cool.
2) Use a Phillips screwdriver to loosen the lamp cover fixing screw (×1) until it turns freely and remove
the lamp cover.
f Remove the lamp cover by pulling it slowly toward the direction of the arrow.
130 -
ENGLISH
Chapter 6 Maintenance - Maintenance/replacement
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