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.
• 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
).
Screen mirroring does not work with the
available Android device.
• In order to allow screen mirroring, your device
must support Miracast. Not all Android devices
support this function. The function name can be
also known as Screencast, Screen Sharing, WiFi
Direct, Wireless Display, etc..
• Please refer to the user manual of your Android
device to check if this function is supported and
how it can be enabled.