Mitsubishi Electric XD550U User Manual page 54

Troubleshooting (continued)
Images are not displayed correctly. (continued)
Problem
Projected images
become wavy.
Hue is not appropriate.
Tint in projected
images is incorrect.
Different color tint.
Only the motion areas
in the images supplied
from the computer
aren't displayed.
Projected images are
obscured.
Projected images are
fl ickering.
Projector images are
twitching.
Others
Problem
The exhaust vents
emit warm air.
No audio is output.
The menu can't be
used.
"TEMPERATURE!!" is
displayed.
The mark appears.
The remote control
doesn't function easily
or at all.
Solution
• Connect the plugs of the cables to external devices securely.
• Keep the projector away from equipment generating interfering radio waves.
• When the keystone adjustment is carried out, the image may not be displayed
correctly because of the type of input signal. This isn't a product malfunction. In this
case, readjust the keystone so that the amount of keystone correction is as small as
possible.
• Check that the cables connected to the external devices are not broken.
• Check that Computer Input in the Signal menu is correctly set. (See page 24.)
• Check that the cable connected to the external device isn't broken.
• 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 59.)
• Some images and texts appear obscured during the keystone adjustment. In such
cases, use the projector without applying the keystone adjustment. (See page 15.)
• After the POWER button or ON button on the remote has been pressed, or the Lamp
mode setting has changed, images may be fl ickering until the lamp lights stably. This
is an expected behavior.
• When selecting the input signal, Auto Position, and Image, the projected image may
be fl ickering temporarily. This is not a product malfunction.
• Projector may be vibrating. Set Auto Keystone to Off or lower the VOLUME  button
of the Remote control.
Solution
• This air comes out after cooling the inside of the projector. You may feel hot, but this
is not a malfunction.
• Check that the volume isn't set to low.
• Check the Audio Input setting.
• When the external device is connected with an HDMI cable, set the audio output of
the device to PCM output.
• The microcomputers inside the projector may be wrongly operating because of noise.
 Press the POWER button to turn off the lamp and unplug the power cord from the
wall outlet. Wait about 10 minutes, plug the power cord in, and try again.
• 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 8.)
• Check that the remote control sensor isn't exposed to direct sunlight or fl uorescent
light. (See page 8.)
• Use the remote control within its operation range. (See page 8.)
• Use the remote control at least 10 cm away from the projector.
EN-54