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ViewSonic PJL855
Cleaning the Air Filter
IMPORTANT: Clean the air filter about every 100 hours.
NOTE: If sufficient dust, etc. collects in the air filter, a protection circuit in the projector
will automatically turn off the power. To prevent this from occurring, make sure you clean
the air filter every 100 hours.
Replacing the Lamp Unit
To order a new lamp unit (Part No. RLU-150-03A) contact ViewSonic
®
Customer Support.
Cleaning Instructions
To ensure that the projector functions properly, follow the recommended cleaning instructions below.
Replace the lamp unit if:
• the picture is dark
• "CHANGE THE LAMP" is
displayed
• the lamp indicator on the projector
remains lit red. (See page 14.)
CAUTION:
HANDLE THE LAMP UNIT
CAREFULLY. Dropping the unit
could cause the lamp to
explode.
Maintenance
1 Make sure the Main Power switch is OFF, then
disconnect the power cord from the wall outlet. If the
projector has recently been turned on,
wait at least
45 minutes for the lamp to cool down.
2 Carefully place the projector onto a flat surface
covered with soft material (like a towel). Then loosen
the Lamp Cover screw and remove the Lamp Plate
(as shown to the right).
3 Loosen the four (4) lamp-unit screws, grasp the
Lamp Unit Handle, and gently pull the lamp unit out
of the projector.
4 Carefully insert the new lamp unit into the projector
and tighten the lamp-unit screws.
5 Re-install the Lamp Cover and tighten the Lamp
Cover screw securely.
Power-on the projector.
6 Reset the lamp time (within 10 minutes)
•Press RESET (on projector) or TIMER (on Remote
Control Unit)
and hold for three (3) seconds
•Press RESET (on projector) or MENU ON (on
Remote Control Unit)
•Select "0" on the screen using MENU [<] (on
projector) or DISKPAD (on Remote Conrol Unit.)
1 Turn OFF the Main Power switch of the projector and disconnect
the power cord from the wall outlet.
2 Carefully place the projector on its side (with the lens pointing
up) onto a flat surface covered with soft material (like a towel).
Then loosen the thumb screw and remove the air-filter plate.
3 Remove the air filter from the Front Filter Cover (as shown in the
illustration to the right) and use a vacuum cleaner to clean the
filter.
4 Re-install the air filter, then the Front Filter Cover. Tighten the
thumb screw and plug the power cord back into the wall outlet.
Maintenance
Air filter
Front Filter
Cover
Front
Glass
Reflector
Lamp Unit
Lamp Unit
Handlle
Screws
Lamp
Cover
Cleaning the Cabinet
• Use a soft, dry, lint-free cloth to wipe dust, etc. from the cabinet.
• If this is insufficient, use a soft, lint-free cloth moistened with a
mild detergent diluted with water. Then wipe the surface with a
soft, dry, lint-free cloth.
CAUTION: Never use any
ammonia or alcohol-based
cleaner to clean the cabinet.
Cleaning the Lens
• To clean the lens, use a camera lens cleaning tissue or a
camel hair brush.
• Be careful not to scratch the lens with a sharp or hard object.
CAUTION: Never use any ammonia
or alcohol based cleaner on the lens.