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ViewSonic PJ750 21
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Remote Control Batteries
Replace the batteries when the remote control unit becomes difficult to operate (such as slow
response when you push a button). Use 2 AA batteries as shown in Figure 8 below.
To replace the batteries:
1
Pull the plastic tab from the battery access door when using the new projector for the first time.
2 Push the tab on the bottom of the remote unit and remove the battery cover.
3 Gently remove the batteries from the holder and replace them with new batteries.
4 Ensure that the positive and negative terminals (+ / -) are positioned correctly.
5 Push the battery cover into place. The cover should click into place.
Cleaning Instructions
Projector Lens
Clean the lens with a damp, non-abrasive cloth. Apply a lens cleaning solution or a glass cleaning
solution to the cloth. Do not spray a cleaning solution directly onto the lens.
Projector Case
Make sure the projector is cool before cleaning. Clean the exterior case with a moist cloth using a
mild detergent.
WARNING:
Do not use alcohol, benzene, or other chemical cleaners which could damage the case.
Air-Filter
Clean or replace the air-filter after every 100 hours of use to prevent overheating, which could
damage the projector.
1
Make sure the projector is cool and the power cord is unplugged before beginning.
2
Vacuum the air-filter.
WARNING:
Never operate the projector without the air-filter; doing so will damage the projector.
Figure 8: Installing the Batteries