Troubleshooting - Mitsubishi Electric XD300U 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
clogged with dust or some other obstruction.
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
after having been turned off.
• When the power switch was turned off while
the fan was running, during or after lamp
operation.
• The room temperature is too high.
(Does the STATUS indicator show an unusual
condition?)
• Lamp is no longer working.
POWER indicator blinks between red and green.
• The lamp cover is not closed.
• When the STATUS indicator is on or blinking,
the main unit requires repairs.
No picture appears
• Lens is covered by lens cap.
on the screen.
• When the STATUS indicator is on or blinking,
the main unit requires repairs.
• The equipment connected to this projector is not
turned on.
• Other equipment is not connected properly.
• The input source is not selected correctly.
• A long RGB cable is being used instead of the at-
tached RGB cable.
• The air inlet grille, outlet grille or air filter is
The image is
clogged with dust or obstructed.
turned off.
(In this case, the STATUS indicator does not light up.)
• The projector is not at a right angle to the screen.
The image is
distorted.
The image is dark. • Brightness, tint and color are not adjusted correctly.
• The projecting distance is beyond the focused area.
• Lens is dirty.
The image is
• Screen size exceeds screen size specifications.
blurred.
• 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.
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
No sound is heard.
• Volume is not turned up.
• Connection to other equipment is not made correctly.
Nothing is displayed on
• The PC monitor is not turned on.
the PC monitor.
Warm air comes out of
• This is typical of the projector.
the exhaust vents.
A rainbow blur appears
• Such blur appears based on the principle of the DLP system. It isn't a failure.
on the image.
• The operation is incorrectly made due to noise or
Adjustments cannot be
interference.
made.
is displayed.
• This mark is displayed when an invalid operation is executed. This is not failure.
CAUSE
is not plugged securely into the terminal.
equipment.
POSSIBLE SOLUTIONS
• Remove the obstruction.
• 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 26.
• 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 connections.
• Select the correct source according to the equip-
ment connected to this projector.
• Check whether a picture appears or not using the at-
tached RGB cable. If a picture appears, use an RGB
signal amplifier in addition to the long RGB cable.
• Remove the obstruction and turn off the main
power switch. After about 10 minutes, turn the
projector 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.
Use a screen size to within 40" 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.
• Increasethe distance between the projector
and other equipment.
• Turn up the volume.
• Check connections. See pages 10-11.
• Turn on the monitor.
Turn off the main power, wait about 10 min-
•
utes, and turn on the main power again
.
EN – 27