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5-1 Troubleshooting
Screen and
External
Source
Cannot see picture images. Be sure that the power cord of the projector is connected.
Be sure that the proper input source is selected.
Check that the connectors are properly connected to the ports
at the back of the projector.
Check the Remote Control batteries.
Be sure that the <Color>, <Brightness> settings are not at their
lower limit.
Poor color. Adjust the <Tint> and <Contrast>.
Images are not clear. Adjust the focus.
Check that the projection distance is either too far or too near
to the screen.
Strange noise. If a strange sound continues, contact our service center.
The operating LED is lit up. Refer to Corrective Actions According to LED Indications.
Lines appear on screen. Because noise may occur when using your PC, adjust the fre-
quency of the screen.
No external device screen is displayed. Check the operating status for the external device and check
whether the adjustment items, such as the <Brightness> and
the <Contrast> have been changed correctly in the <Mode>
command screen of the Projector menu.
Only blue screen appears. Be sure to properly connect the external devices. Check the
connection cables again.
Screen appears in black and white or odd
color./ screen is too dark or bright.
As mentioned above, check the adjustment items such as the
<Brightness>, <Contrast> and <Color> in the menu.
If you want to restore various settings to their factory defaults,
run <Factory Default>from the menu.
The <Mode not supported. Optimal mode:
800x600 60hz> message appears.
Set the resolution and the refresh rate for your PC display to
800x600 and 60Hz respectively.
See the "2-7 Setting up the PC Environment" section here in
for details on the setting.
Multimedia
Function
I hear no sound when playing a video file from
my USB storage device.
Check the audio format of the concerned video file.
The sound effects are not available for non-supported formats
such as AC3, etc.
Convert the audio format into a supported format using a video
converter.
Symptoms
Troubleshooting