Mitsubishi Electronics XD700U, WD720U user manual Others Problem Solution

Troubleshooting (continued)

Images are not displayed correctly. (continued)

Problem	Solution
Projected images	• Connect the plugs of the cables to external devices securely.
become wavy.	• 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.
Hue is not appropriate.	• Check that the cables connected to the external devices are not broken.
Tint in projected	• Check that Computer Input in the Signal menu is correctly set. (See page 25.)
images is incorrect.	• Check that the cable connected to the external device isn’t broken.
Different color tint.	• 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.
Only the motion areas	• This is caused by the computer being used. Contact the manufacturer of your
in the images supplied	computer.
from the computer
aren’t displayed.
Projected images are	• Match the output resolution of your computer with the resolution of the projector.
obscured.	For the method to change the output resolution of the computer, contact the
	manufacturer of your computer. (See page 60.)
	• Some images and texts appear obscured during the keystone adjustment. In such
	cases, use the projector without applying the keystone adjustment. (See page 16.)
Projected images are	• After the POWER button or ON button on the remote has been pressed, or the Lamp
flickering.	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 Image, the projected image may
	be flickering temporarily. This is not a product malfunction.
Projector images are	• Projector may be vibrating. Set Auto Keystone to Off or lower the VOLUME  button
twitching.	of the Remote control.
Others
Problem	Solution
The exhaust vents	• This air comes out after cooling the inside of the projector. You may feel hot, but this
emit warm air.	is not a malfunction.
No audio is output.	• 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 menu can’t be	• The microcomputers inside the projector may be wrongly operating because of noise.
used.	 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.
“Temperature!!” is	• This indication appears when the ambient temperature rises high. When the ambient
displayed.	temperature stays high, the lamp goes out.
	 Eliminate any causes of the rise in the ambient temperature.
	• This indication appears when the intake or exhaust vents are blocked. When they are
	kept blocked, the lamp goes out.
	 Remove the objects blocking the intake or exhaust vents.
The mark appears.	• This mark appears when ineffective operation is carried out. This isn’t a product malfunction.
The remote control	• Check that the batteries are loaded in the remote control or the batteries are not
doesn’t function easily	weak. (See page 8.)
or at all.	• Check that the remote control sensor isn’t exposed to direct sunlight or fluorescent
	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.

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