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Service 17
Problems Solutions
The projector cannot be turned on. • Disconnect and reconnect the power cable, and
try to turn the projector on again.
The projector cannot be turned off.
• Press and hold longer than ten seconds. If this
does not work, disconnect the power cable.
No image from the external HDMI device. • Check if the correct HDMI input is selected (HDMI
1 or HDMI 2).
• Disconnect the HDMI cable or switch off the
HDMI device.
• Wait three seconds.
• Reconnect the HDMI cable or switch on the HDMI
device again.
No sound from the external connected
device.
• Check the cables to the external device.
• Check that the sound is activated on the external
device.
• Only the original cables from the device
manufacturer may function.
No sound from external HDMI output
device.
• On the HDMI output device, set the audio setting
to Multichannel (Raw data) & Stereo (PCM).
No sound when you connect your
computer via HDMI cable.
• Check that the sound is activated on the
computer.
Only the home menu appears and not the
image from the external device.
• Check if the cables are connected to the correct
sockets.
• Check that the external device is turned on.
• Check if the video output of the external device is
turned on.
Only the home menu appears and not the
image from the connected computer.
• Check that the VGA output of the computer is
turned on.
• Check if the resolution of the computer is set to
1920*1080 (for VGA connection) or 1080P (for
HDMI connection).
The projector turns itself off. • When the projector is running for a long period of
time, the surface becomes hot.
• Check that the power cable is connected correctly.
The projector cannot read the USB stick. • The projector does not support the exFAT file
system.
• Format the USB stick in FAT format, then use it.
The projector does not react to remote
control commands.
• Check the batteries of the remote control.
Measures to take if Screen Mirroring does
not work anymore after a firmware update
of an Android or iOS device?
• We recommend checking regularly for new
firmware of your projector (see Update software,
page 16).
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