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• If you are using a Mac and you do not hear sound from an HDMI source, make sure your Mac
supports audio through the HDMI port. If not, you need to connect an audio cable.
• If you want to use a connected audio source when the projector is off, set the
Standby Mode
option to
Communication On
and make sure the
A/V Settings
options are set correctly.
• If the volume for the computer is set to the minimum while the projector's volume is set to maximum,
the noise may be mixed. Turn up the computer's volume and decrease the projector's volume.
• If you turn the projector on immediately after turning it off, the cooling fans may run at high speed
momentarily and cause an unexpected noise. This is normal.
Parent topic:
Solving Image or Sound Problems
Related references
Projector Setup Settings - Extended Menu
Related tasks
Connecting to a Computer for Sound
Connecting to a Video Source for Sound
Controlling the Volume with the Volume Buttons
Solving Projector or Remote Control Operation Problems
Check the solutions in these sections if you have problems operating the projector or remote control.
Solutions to Projector Power or Shut-Off Problems
Solutions to Problems with the Remote Control
Solutions to Password Problems
Solutions When a Battery Message Appears
Parent topic:
Solutions to Projector Power or Shut-Off Problems
If the projector does not come on when you press the power button or it shuts off unexpectedly, try the
following solutions:
• Make sure the power cord is securely connected to the projector and to a working electrical outlet.
• The projector's buttons may be locked for security. Unlock the buttons or use the remote control to
turn on the projector.
• If the projector's light source shuts off unexpectedly, it may have entered standby mode after a period
of inactivity. Press the power button to wake the projector and adjust the
Sleep Mode Timer
setting to
change the sleep interval.
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