Maintenance

Cleaning Instructions

To ensure that the projector functions properly, follow the recommended cleaning instructions below.

Cleaning the Air Filter

IMPORTANT: Clean the air filter about every 100 hours.

1Turn OFF the Main Power switch of the projector and disconnect the power cord from the wall outlet.

2Carefully 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.

3Remove 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.

4Re-install the air filter, then the Front Filter Cover. Tighten the thumb screw and plug the power cord back into the wall outlet.

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.

Air filter

Front Filter

Cover

 

Cleaning the Lens

•

To clean the lens, use a camera lens cleaning tissue or a

CAUTION: Never use any ammonia

 

camel hair brush.

or alcohol based cleaner on the lens.

•

Be careful not to scratch the lens with a sharp or hard object.

 

 

 

 

Cleaning the Cabinet

•

Use a soft, dry, lint-free cloth to wipe dust, etc. from the cabinet.

CAUTION: Never use any

•

If this is insufficient, use a soft, lint-free cloth moistened with a

ammonia or alcohol-based

 

mild detergent diluted with water. Then wipe the surface with a

cleaner to clean the cabinet.

 

soft, dry, lint-free cloth.

 

 

 

 

Replacing the Lamp Unit

To order a new lamp unit (Part No. RLU-150-03A)contact ViewSonic® Customer Support.

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.

 

Screws

Lamp

Lamp Unit

Handlle

Cover

 

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.)

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.

Reflector

Front

Glass

Lamp Unit

16

 

 

 

Maintenance

ViewSonic PJL855