Mitsubishi Electric XD221U, Руководство по обслуживанию

Страница: 26 / 70

- -
MAINTENANCE
EN-31
E
N
G
L
IS
H
Troubleshooting (continued)
Others
If the following problem occurs after the lamp is replaced, check the following first.
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.
Problem Solution
The exhaust vents emit warm air. • This air comes out after cooling the inside of the projector. You may feel hot, but this is not a malfunction.
No audio is output. • Check that the volume isn’t set to low.
The menu can’t be used.
• The microcomputers inside the projector may be wrongly operating because of noise.
J
Press the POWER 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.
"TEMPERATURE!!" is displayed.
• This indication appears when the ambient temperature rises high. When the ambient temperature stays high,
the lamp goes out.
J
Eliminate any causes of the rise in the ambient temperature.
• This indication appears when the air inlet or outlet grille is blocked. When they are kept blocked, the lamp
goes out.
J
Remove the objects blocking the air inlet or outlet grille.
The mark appears. • This mark appears when ineffective operation is carried out. This isn’t a product malfunction.
The remote control doesn’t function easily or at all.
• Check that the batteries are loaded in the remote control or the batteries are 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.)
• Use the remote control at least 10 cm away from the projector.
The SOURCE button on the control panel doesn’t
function.
• PASSWORD FUNCTION in the FEATURE menu has been set to MENU ACCESS to enable the password
lock.
J
Cancel the password lock or contact the person in charge of management of the projector.
(See page 25.)
Abnormal sound is heard.
• Because the color wheel spins at a high speed, metallic sounds may be heard in rare occasions. Such symp-
tom is not a malfunction.
Problem Solution
The projector does not turn on.
• Fit the lamp cover securely. (See page 28.)
• Reset the lamp operating time. (See page 28.)
The STATUS indicator blinks. • Reset the lamp operating time. (See page 28.)