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31 ViewSonic PJ650
Maintenance
Lamp
To order a new lamp unit (Lamp Part # RLU-150-001), contact ViewSonic or your dealer. For the lamp part
number, see the Optional Parts in the Specifications in this guide. For contact information, see the Customer
Support table in this guide. Before replacing the lamp, turn the Power Switch OFF, remove the power cord
from the power outlet, then wait at least 45 minutes until the lamp has cooled.
CAUTION:
The lamp may explode if handled at high temperatures.
HIGH VOLTAGE
HIGH TEMPERATURE
HIGH PRESSURE
WARNING
The projector uses a high-pressure mercury glass lamp made of glass. The lamp can break with a
loud bang, or burn out, if jolted or scratched, handled while hot, or worn over time. Note that 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
• 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.
• 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.
• 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.
• If the indicators or a message prompts you to replace the lamp (see the section “Related
Messages” and “Regarding the indicator Lamps”), 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.
• Use the lamp of the specified type only. (sold separately)
• Handle with care: jolting or scratching could cause the lamp bulb to burst during use.
• 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.
• Do not use the projector with the lamp cover removed. At the lamp replacing, make sure that the
screws are screwed in firmly. Loose screws could result in damage or injury.
• 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.