3M MP8790 - Manual (Page 34)

33
THE LAMP
HIGH VOLTAGE
HIGH TEMPERATURE
HIGH PRESSURE
To replace the lamp, check the model number of the replacement lamp (sold separately) and
contact your local dealer.
Replacement lamp model number: 78-6969-9601-2
If the projector is mounted on the ceiling, or if the lamp has broken, ask your dealer to replace the
lamp. Lamp replacement is hazardous and should not be attempted by the user.
Before replacing the lamp, make sure the power switch is off and the power cable is not plugged in,
then wait at least 45 minutes for the lamp to cool sufficiently. Handling the lamp while hot can cause
burns, as well as damaging the lamp.
The LCD projector uses a glass lamp bulb. It is a mercury lamp with high
internal pressure. High-pressure mercury lamps can break with a loud
bang, or burn out, if jolted or scratched, or through wear over time. Each lamp has a
different lifetime, and some may burst or burn out soon after you start using them. In
addition, when the bulb bursts, it is possible for shards of glass to fly into the lamp housing,
and for gas containing mercury to escape from the projector’s vent holes.
• Do not open the lamp cover while the projector is suspended from above. This is
dangerous, since if the lamp’s bulb has broken, the shards will fall out when the cover is
opened. In addition, working in high places is dangerous, so ask your local dealer to have
the lamp replaced even if the bulb is not broken.
• Handle with care: jolting or scratching could cause the lamp bulb to burst during use.
• If the replace lamp indicator (see "Related Messages" ( ) and "Regarding the indicator
Lamps" ( )) comes on, replace the lamp as soon as possible. Using the lamp for long
periods of time, or past the replacement date, could cause it to burst. Do not use old
(used) lamps; this is a cause of breakage.
• If the lamp breaks soon after the first time it is used, it is possible that there are electrical problems
elsewhere besides the lamp. If this happens, contact your local dealer or a service representative.
• If the lamp should break (it will make a loud bang when it does), ventilate the room well, and make
sure not to breathe the gas that comes out of the projector vents, or get it in your eyes or mouth.
• If the lamp should break (it will make a loud bang when it does), unplug the power cord from
the outlet, and make sure to request a replacement lamp from your local dealer. Note that
shards of glass could damage the projector’s internals, or cause injury during handling, so
please do not try to clean the projector or replace the lamp yourself.
• Obey local ordinances when disposing of used lamps. In most cases, it is possible to dispose of used
bulbs in the same manner as used glass bottles, but in some cases, bulbs are sorted separately.
• Do not use the projector with the lamp cover removed.
WARNING
38
39