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12. Troubleshooting
Problem
Solution
Only the motion areas in the
images supplied from the
computer aren’t displayed.
This is caused by the computer being use d. Contact the manufacturer of your computer.
Projected images are obscured.
• Match the output resolution of your computer w ith the resolution of the projector. F or
the m ethod to change the output resolution of the com puter, contact the manufacturer
of your computer.
• Some images and texts appear obscured during the keystone adjustment. In such cases,
use t he projector without applying the keystone adjustment.
• When SUPER RESOLUT ION is ON, the displayed image may be obs cured. Set it to OFF.
Noise appears around the
image.
In some images such as DVD, noise m ay appear around the recorded image. In this case,
decrease the setting value of OVER SCAN in the SIGNAL menu or adjust the s etting value of
SHUTTER in the USER menu o f the SIGNAL menu.
The resolution setting on the
computer is different from that
displaye d in INF ORMATION
menu on the projector.
• On the computer, display the images containing many characters such as a text document
so that the screen becomes bright a s much as possible, and then execute AUTO
POSITION.
• Perform RESOLUTION (MEMO RIZE) in the SIGNAL m enu.
• Depending on the computer, the images m ay be output in the different resolution from the
setting. In such a case, consult the computer manufacturer.
The projected images have
blown-out highlights or
blocked-up shadows.
• Adjust the input level of ADVANCED menu in the IMAG E menu
• Set COLOR E NHAN C ER in the IMAGE menu to the setting such as STA NDA RD
and
sRGB.
Images of WXGA signal are not
displaye d correctly.
Make adjustment according to “How to adjust the computer image”
12.3 Other problems
Overview
Problem
Solution
The exhaust vents emit w arm
air.
This air comes out after cooling the inside of the projector. You may feel hot, but this is not
a malfunction.
The m enu can’t be used.
• The m icrocomputers inside the projector may be wrongly operating because of noise.
→ Press the POWER key to turn off the lamp, wait f or about 2 minutes and unplug the
power cord from the wall outlet. Wait about 10 minutes, plug the power cord in, and try
again.
• You cannot select (or set) grayed-out items. Whether items can be selected or not
depends on the presence of an input signal at the time when the menu is displayed, the
type of such input signal, and other c onditions.
“HIGH TEMP WARNING” is
displaye d .
• This indication appears when the ambi
ent temperature rises high. Whe n the am bient
temperature stays high, the lamp goes out.
→ Eliminate any causes of the rise in the ambient temp erature.
• This indication appe ars when the intake or exhaust vents a re blocked. When they are
kept blocked, the lamp goes out.
→ Remove the objec ts blocking the intake or exhaust vents.
The mark Ø appears.
This m ark appears when ineffective operation is carried out. This isn’t a produ ct m a lfunction.
This mark appears when
ineffective operation is c arried
out. This isn’t a product
malfunction. The remote
control d oesn’t function easily
or at all.
• Check that the batteries are loaded in the remote control or the batteries are not weak.
• Check that the remote control s
ensor isn’t exposed to direct sunlight or fluorescent light.
• Use the remote control within its operation range.
• Use the remote control at least 10 cm away from the projector.
• Check that the projector isn’t controlled by a control panel or other device that is
connected to the REMOTE 1 IN terminal.
• Check that the REMOTE 2 IN and OUT terminals are not used.
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