Mitsubishi Electronics XD480U user manual Troubleshooting, Images arent projected correctly

Troubleshooting (continued)

Images aren't projected correctly.

Problem	Cause and solution
Projected images are	• Check that the cable connected to the external device isn't intermittent.
shaking.	• Connect the cable's plug with the external device's connector firmly.
Projected images are dis-	• Press the AUTO POSITION button.
placed.	• Some computers output out-of-spec signals on rare occasion. Adjust the SIGNAL menu. (See page
		20.)
Projected images are dis-	• Adjust the projector and the screen so that they are perpendicular to each other. (See page 13.)
torted.
Projected images are dark.	• Adjust BRIGHTNESS in the IMAGE menu. (See page 19.)
	• Replace the lamp. (See page 26.)
Projected images are	• Adjust the focus. (See page 14.)
blurred.	•	Clean the lens.
	• Press the ￿ or ￿ button on the remote control to eliminate flicker.
	• Adjust BRIGHTNESS and CONTRAST in the IMAGE menu. (See page 19.)
	• Adjust the projector and the screen so that they are perpendicular to each other. (See page 13.)
White dots are seen on	• This symptom is normal for a DLP projector and is not a malfunction. (A very small number of pixels
projected images.		may stay lit or out, but such sympton is not a malfunction. Pixels of 99.99% or more are effective.)
Black dots are seen on
projected images.
Rainbow blur appears in	• Such blur appears based the principle of the DLP system. It isn't a failure.
projected images.
Fine streak pattern ap-	• It occurs because of interference with the screen and isn't a product malfunction. Change the screen
pears in projected images.		or readjust the focus of the projector.
Projected images (and/or	• Connect the cable's plug with the external device's connector firmly.
audio) appear wavy and	• Keep the projector away from equipment generating interfering radio waves.
distorted.	• 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.
Tint in projected images is	• Check that COMPUTER INPUT in the SIGNAL menu is correctly set. (See page 18.)
incorrect.	• Check that the cable connected to the external device isn't broken.
Only the motion areas in	• This is caused by the computer being used. Contact the manufacturer of your computer.
the images supplied from
the computer aren't dis-
played.
Projected images are ob-	•	Match the output resolution of your computer with the resolution of the projector. For the method to
scured.		change the output resolution of the computer, contact the manufacturer of your computer. (See page
		33.)
	• Some images and texts appear obscured during the keystone adjustment. In such cases, use the
		projector without applying the keystone adjustment. (See page 13.)

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