Mitsubishi Electric XD211U User Manual page 23

Troubleshooting (continued)
Others
Problem
The exhaust vents emit warm air.
No audio is output.
The menu can't be used.
The remote control doesn't function easily or at all.
Abnormal sound is heard.
If the following problem occurs after the lamp is replaced, check the following first.
Problem
The projector does not turn on.
The POWER lights amber and the STATUS lights
green.
Maintenance
Warning:
Do not use flammable solvents (benzene, thinner, etc.) and flammable aerosols when cleaning the projector body and lens. Flammable substances
may ignite causing fire or breakdown while the lamp is illuminating.
Caution:
Be sure to turn off the lamp and unplug the power cord from the wall outlet before you perform any maintenance on the projector.
Cleaning of the projector and the ventilation slots
Use a soft cloth to clean the projector and the ventilation grilles. When the grilles become dirty, wipe them with a soft cloth dampened with diluted
mild detergent, and then wipe them with a dry cloth.
To protect the surface of the projector from fading or deteriorating:
• Do not spray insecticide on or inside the projector.
• Do not use benzin or thinner to clean it.
• Do not let rubber or plastic materials contact with projector.
Cleaning of the lens
Use a standard lens-cleaning brush or a piece of lens tissue dampened with lens cleaning fluid. The lens surface is fragile. Use only recommended,
nonabrasive lens-cleaning materials. Do not touch the lens with your fingers.
• This air comes out after cooling the inside of the projector. You may feel hot, but this is not a malfunction.
• Check that the volume isn't set to low.
• The microcomputers inside the projector may be wrongly operating because of noise.
Press the ON 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.
• Check that the battery is loaded in the remote control or the battery is not weak. (See page 8.)
• 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.)
• Because the color wheel spins at a high speed, metallic sounds may be heard in rare occasions. Such symp-
tom is not a malfunction.
• Fit the lamp cover securely. (See page 20.)
• Reset the lamp operating time. (See page 20.)
Solution
Solution
EN-23