ViewSonic PJ658 - XGA LCD Projector Guide de l'utilisateur télécharger pdf (Page 39)

34ViewSonic PJ658D

Symptom Cause Measure

Image is out

of focus.

The lens focus is not

adjusted optimally.

Adjust the focus with the focus ring.

The projection distance is

not within the projector’s

supported range.

Place the projector within the supported

range.

Remote

control

doesn’t work.

The batteries could be weak. Replace with a new set of batteries.

The polarity is not correct. Install the batteries with correct polarities.

The remote control is not

being used within the

effective range.

Use the remote control within the effective

range.

There are some obstructions

between the remote control

and projector.

Check that there are not obstructions

between the remote control and projector.

There are some uorescent

or other bright lights shining

at the projector’s infrared

remote

Check that there are not any uorescent or

other bright lights shining at the projector’s

infrared remote sensor.

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ViewSonic PJ658 - XGA LCD Projector Guide de l'utilisateur Page 39