ViewSonic J658D User Manual page 39

Symptom
Image is out
of focus.
Remote
control
doesn't work.
ViewSonic PJ658D
Cause
The lens focus s not
adjusted optmally.
The projecton dstance s
not wthn the projector's
supported range.
The batteres could be weak.
The polarty s not correct.
The remote control s not
beng used wthn the
effectve range.
There are some obstructons
between the remote control
and projector.
There are some fluorescent
or other brght lghts shnng
at the projector's nfrared
remote
Measure
Adjust the focus wth the focus rng.
Place the projector wthn the supported
range.
Replace wth a new set of batteres.
Install the batteres wth correct polartes.
Use the remote control wthn the effectve
range.
Check that there are not obstructons
between the remote control and projector.
Check that there are not any fluorescent or
other brght lghts shnng at the projector's
nfrared remote sensor.
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