Mitsubishi Electronics XL5950U user manual Troubleshooting

Troubleshooting

The following offers solutions to some of the common problems you may encounter. We suggest that you consult this chart before contacting your dealer.

	PROBLEMS		CAUSE		POSSIBLE SOLUTIONS
	The power is off.	•	The air inlet slots, outlet slots or air filter is clogged	•	Remove the object.
			with dust or some objects.
		POWER indicator does not light up.			Plug the power cord into the outlet.
		•	Power cord is unplugged from the outlet.	•
		•	Power cord is disconnected from the projector.	•	Insert the power cord into the projector.
		•	The main switch is turned off.	•	Turn the main switch on.
		•	The lamp lid is open.	•	Close the lamp lid.
		POWER indicator blinks red.			Wait for the lighting sequence.
		•	The projector has been turned on again too soon after	•
			having been turned off.	• Turn the power switch on and off several times.
		•	When the power switch was turned off while the fan
			was running, during or after lamp operation.
		•	The room temperature is too high.	•	Refer to "Indicators" on page 26.
			(Does the LAMP indicator show an unusual condition?)
		• Lamp is no longer working.		• Replace the lamp with a new one.
		POWER indicator blinks between red and green.
		•	The filter cover is not closed.	•	Close the cover correctly.
		• When the LAMP indicator or the TEMP indicator is		• Contact your dealer.
			either on or blinking, the main unit requires repairs.
	No picture appears •		Lens is covered by lens cap.	•	Take the lens cap off.
	on the screen.	• When the LAMP indicator or the TEMP indicator is		• See page 26.
			either on or blinking, the main unit requires repairs.
		•	The equipment connected to this projector is not turned on.	•	Turn on the connected equipment.
		•	Hookup is not made correctly with other equipment.	•	Confirm the hookup.
		•	The input source is not selected correctly.	•	Select the correct source according to the equipment
			An extension cord is being used instead of the supplied		connected to this projector.
		•		•	Check whether the image is displayed correctly by
			cable.		replaceing it with the supplied cable. When the image
					is displayed correctly, use the extension cord along with
					an RGB signal amplifier.
	The image is	•	The air inlet slots, outlet slots or air filter is clogged	•	Remove the object and turn off the main power switch.
	turned off.		with dust or some objects.		After about 10 minutes, Turn the projector on.
			(In this case, the TEMP indicator does not light up.)
	The image is	•	The projector is not at a right angle to the screen.	•	Adjust the angle of the projector to make a right angle
	distorted.				to the screen. See page 12.
	The image is dark. •		Brightness, tint and color are not adjusted correctly.	•	Adjust brightness, tint and color correctly. See page 18.
	The image is	•	The projecting distance is beyond the focused area.	•	Adjust the projecting distance. See page 9.
	blurred.	•	Lens is dirty.	•	Clean lens.
		•	Screen size exceeds screen size specifications.	•	Reduce screen size to within 60" to 300".
		•	Brightness and contrast are not adjusted correctly.	•	Adjust brightness, contrast.
		•	FINE adjustment is not made correctly.	•	Make FINE adjustment.
		•	Tracking is not adjusted.	•	Adjust tracking. See page 17.
		•	The projector is not at a right angle to the screen.	•	Adjust the angle of the projector to make a right
					angle to the screen. See page 12.
		•	The output resolusion of the computer exceeds the reso-	•	Adjust the output resolution of the computer to the
			lution of the projector.		resolution of the projector. (See page 29.) For changing
					the output resolution of the computer, contact the
					computer manufacturer.
		•	Keystone adjustment is used.	•	When you use the keystone adjustment, graphics or
					characters may be blurred in some images. In this case,
					use the projector with using the keystone adjustment
					disabled. (See page 12.)
	The afterimage	• When a stationary image is projected for a long time, its afterimage may persist on the screen. This is not a
	remains.		failure, and the afterimage will disappear in a few minutes.
	Only the motion area in the	• This is caused by a problem of the computer. Contact the computer manufacturer.
image supplied from the
computer is not displayed.
	Red, blue or green dots are	• It is normal.
	viewed on the text of image.
	The image is dis-	• The cable for connection with other equipment is not		• Plug the connecting cable securely into the terminal.
	torted on the screen	•	plugged securely into the terminal.		See pages 10-11.
	and noise is heard.		The projector is installed too close to other equip-	• Install the projector far away from other equipment.
			ment.
	No sound is heard.	• Volume is not turned up.		• Turn up the volume.
		•	Connection to other equipment is not made correctly.	•	Check connections. See pages 10-11.
	Nothing is displayed on	•	The PC monitor is not turned on.	•	Turn on the monitor.
	the PC monitor.
	Warm air comes out of	• This is typical of the LCD projector.
	the exhaust vents.
	Adjustments cannot be made.	•	The operation is incorrectly made due to noise or interference.	•	Press the reset button on the Terminal board. See page 15.

is displayed. • This mark is displayed when an invalid operation is executed (for example, when the COMPUTER or VIDEO button is pressed while the menu is displayed). This is not failure.

ENGLISH

EN – 25