▪ Never replace the lamp assembly or
any electronic component unless the
projector is unplugged.
▪ Do not attempt to disassemble the
projector. There are dangerous high
voltages inside which may cause death
if you should come into contact with
live parts.
▪ When moving the projector, be careful
not to drop or bump the projector on
anything.
▪ Do not place any heavy objects on the
projector or connection cables.
▪ Do not stand the projector on end
vertically. Doing so may cause the
projector to fall over, causing personal
injury or projector malfunction.
▪ Avoid exposing the projector to direct
sunlight or other sources of sustained
heat. Do not install near any heat
sources such as radiators, heat
registers, stoves, or other devices
(including amplifiers) that may increase
the temperature of the projector to
dangerous levels.
uninterruptable power supply (UPS).
▪ If smoke, an abnormal noise, or a
strange odor is present, immediately
switch the projector off and call your
dealer or ViewSonic®. It is dangerous
to continue using the projector.
▪ Use only attachments/accessories
specified by the manufacturer.
▪ Disconnect the power cord from the AC
outlet if the projector is not being used
for a long period of time.
▪ Refer all servicing to qualified service
personnel.
CAUTION: Possibly
hazardous optical
radiation is emitted from
this product. As with any
bright light source, do not
stare into the beam, RG2
IEC 62471-5:2015
Glossary of Terms
NOTE: Some terms may not be applicable to your device.
Troubleshooting Common Problems
Refers to the ratio of the image width to the image height.
BCFGHIKLMS
Why doesn't the projector turn on?
▼
LS740HD - ViewSonic Projectors https://manuals.viewsonic.com/LS740HD_Full_Guide
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