Mitsubishi HC3800U User Manual page 43

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Troubleshooting (continued)
Images are not displayed correctly. (continued)
Problem
Different color tint.
Only the motion areas
in the images supplied
from the computer
aren't displayed.
Projected images are
obscured.
Image remains
freezing.
Noise appears around
the image.
Projected images are
flickering.
Others
Problem
The exhaust vents
emit warm air.
The menu can't be
used.
"TEMPERATURE!!" is
displayed.
The
mark appears.
The remote control
doesn't function easily
or at all.
The buttons on the
control panel (except
for the POWER button)
don't function.
Abnormal sound is
heard.
Solution
When comparing images projected by two projectors, tints in the displayed images
may be different because of variation between their optical components. This is not a
malfunction.
When comparing the image projected by this projector with those displayed on the
television or PC monitor, tints in the displayed images may be different because of
difference in the range of color reproducibility. This is not a malfunction.
This is caused by the computer being used. Contact the manufacturer of your
computer.
Match the output resolution of your computer with the resolution of the projector. For
the method to change the output resolution of the computer, contact the manufacturer
of your computer. (See page 46.)
Some images and texts appear obscured during the keystone adjustment. In such
cases, use the projector without applying the keystone adjustment. (See page 1.)
When image from VCR is projected, it may remain freezing during speed search. This
is not a malfunction.
In some images such as DVD, noise may appear around the recorded image. In this
case, decrease the setting value of OVER SCAN of the SIGNAL menu. (See page 9.)
After the Power button or On button on the remote has been pressed, or the Lamp
mode setting has changed, images may be flickering until the lamp lights stably. This is
an expected behavior.
When selecting the input signal, Auto Position, and Color Enhancer, the projected
image may be flickering temporarily. This is not a product malfunction.
Solution
This air comes out after cooling the inside of the projector. You may feel hot, but this is
not a malfunction.
The microcomputers inside the projector may be wrongly operating because of noise.
Press the POWER button to turn off the lamp and wait about 90 seconds. Then
unplug the power cord from the outlet, wait at least 10 minutes, and plug the power
cord back into the outlet. When the POWER button doesn't function, unplug the
power cord from the outlet, wait at least 10 minutes, and then plug the power cord
back into the outlet.
This indication appears when the ambient temperature rises high. When the ambient
temperature stays high, the lamp goes out.
Eliminate any causes of the rise in the ambient temperature.
This indication appears when the air inlet or outlet grille is blocked. When they are kept
blocked, the lamp goes out.
Remove the objects blocking the air inlet or outlet grille.
This mark appears when ineffective operation is carried out. This isn't a product
malfunction.
Check that the batteries are loaded in the remote control or the batteries are not weak.
(See page 6.)
Check that the remote control sensor isn't exposed to direct sunlight or fluorescent
light. (See page 9.)
Use the remote control within its operation range. (See page 9.)
Use the remote control at least 10 cm away from the projector.
PASSWORD FUNCTION in the FEATURE menu has been set to MENU ACCESS to
enable the password lock.
Cancel the password lock or contact the person in charge of management of the
projector. (See page 5.)
Because the color wheel spins at a high speed, metallic sounds may be heard in rare
occasions. Such symptom is not a malfunction.
EN-4

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