Troubleshooting - Mitsubishi XL1U User Manual

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
The power is off.
• The air inlet grille, outlet grille or air filter is
POWER indicator does not light up.
• Power cord is unplugged from the outlet.
• Power cord is disconnected from the projector.
• The main switch is turned off.
• The lamp lid is open.
POWER indicator blinks red.
• The projector has been turned on again too soon
• When the power switch was turned off while
• The room temperature is too high.
• Lamp is no longer working.
POWER indicator blinks between red and green.
• The lamp cover is not closed.
• When the LAMP indicator or the TEMP
No picture appears
• Lens is covered by lens cap.
on the screen.
• When the LAMP indicator or the TEMP
• The equipment connected to this projector is not
• Hookup is not made correctly with other equipment.
• The input source is not selected correctly.
The image is • The air inlet grille, outlet grille or air filter is
turned off.
The image is • The projector is not at a right angle to the screen.
distorted.
The image is dark.
• Brightness, tint and color are not adjusted correctly.
The image is • The projecting distance is beyond the focused area.
blurred. • Lens is dirty.
• Screen size exceeds screen size specifications.
• Brightness and contrast are not adjusted correctly.
• FINE adjustment is not made correctly.
• Tracking is not adjusted.
• The projector is not at a right angle to the screen.
• When you see the stationary image for a long time, it may remain on the screen if you change the
The image remains
blurred.
• It is normal.
Red, blue or green dots are
viewed on the text of image.
The image is dis- • The cable for connection with other equipment
torted on the screen
and noise is heard. • The projector is installed too close to other
• Volume is not turned up.
No sound is heard.
• Connection to other equipment is not made correctly.
Nothing is displayed on
• The PC monitor is not turned on.
the PC monitor.
• This is typical of the LCD projector.
Warm air comes out of
the exhaust vents.
Adjustments cannot be
• The operation is incorrectly made due to noise or
made.
• This mark is displayed when an invalid operation is executed (for example, when the COMPUTER or
is displayed.
EN – 24
CAUSE
clogged with dust or some objects.
after having been turned off.
the fan was running, during or after lamp
operation.
(Does the LAMP indicator show an unusual
condition?)
indicator is either on or blinking, the main unit
requires repairs.
indicator is either on or blinking, the main unit
requires repairs.
turned on.
clogged with dust or some objects.
(In this case, the TEMP indicator does not light up.)
image. It is not a breakdown. The blurred image will disappear in a few minutes.
is not plugged securely into the terminal.
equipment.
interference.
VIDEO button is pressed while the menu is displayed). This is not failure.
POSSIBLE SOLUTIONS
• Remove the object.
• Plug the power cord into the outlet.
• Insert the power cord into the projector.
• Turn the main switch on.
• Close the lamp lid.
• Wait for the lighting sequence.
• Turn the power switch on and off several times.
• Refer to "Indicators" on page 25.
• Replace the lamp with a new one.
• Close the cover correctly.
• Contact your dealer.
• Take the lens cap off.
• Replace the lamp with a new one.
• Turn on the connected equipment.
• Confirm the hookup.
• Select the correct source according to the equip-
ment connected to this projector.
• Remove the object and turn off the main power
switch. After about 10 minutes, Turn the pro-
jector on.
• Adjust the angle of the projector to make a right
angle to the screen. See page 12.
• Adjust brightness, tint and color correctly.
• Adjust the projecting distance. See page 9.
• Clean lens.
Reduce screen size to within 30" to 300".
•
• Adjust brightness, contrast.
• Make FINE adjustment.
• Adjust tracking.
• Adjust the angle of the projector to make a
right angle to the screen. See page 12.
• Plug the connecting cable securely into the
terminal. See pages 10-11.
• Install the projector far away from other equipment.
• Turn up the volume.
• Check connections. See pages 10-11.
• Turn on the monitor.
• Press the reset button on the Terminal board.
See page 15.