Acer UL6500 User Manual page 51

Picture appears but no sound is
5
heard.
6 Data image is not centered.
An unusual sound is occasionally
7
heard from the cabinet.
Maintenance indicator on the
8 projector illuminates or blinks in
red.
Picture is green on HDMI
9
(Component).
Picture is pink (no green) on HDMI
10
(RGB).
11 Picture is too bright and whitish.
12 The cooling fan becomes noisy.
The light source does not light up
13
even after the projector turns on.
The light source suddenly turns off
14
during projection.
15 The image sometimes flickers.
The remote control cannot be
16
used.
3D images flicker when watching
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in a room.
• Cables are incorrectly connected to the projector.
• Volume is set to minimum.
• When the projector is connected to an external device
and the volume is set to minimum, the sound is not output
even if you turn up the volume of the external device.
• Depending on the computer you are using, the output
resolution signal may be different from the one you have
set. For details, refer to the operation manual of the
computer.
• If the picture is normal, the sound is due to cabinet
shrinkage caused by room temperature changes. This
will not affect operation or performance.
• See "LED indicator messages".
• Change the input signal type setting.
• Image adjustments are incorrectly set.
• When temperature inside the projector increases, the
cooling fan runs faster.
• The light source indicator is illuminating in red.
• Cables are incorrectly connected to the projector or the
connected equipment works improperly.
• Operate the remote control while pointing it at the
projector's remote control sensor.
• The remote control may be too far away from the
projector.
• If direct sunlight or a strong fluorescent lamp is shining on
the projector's remote control sensor, place the projector
where it will not be affected by strong light.
• The batteries may be depleted or inserted incorrectly.
Make sure the batteries are inserted correctly or insert
new ones.
• Images may appear to flicker when fluorescent light or
ambient light enters your vision.
-Turn off the lights.
-Block any ambient light.
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