Mitsumi electronic HC3800 user manual Others Problem Solution

Troubleshooting (continued)

Images are not displayed correctly. (continued)

Problem	Solution
Different color tint.	• When comparing images projected by two projectors, tints in the displayed images
	may be different because of variation between their optical components. This is not a
	malfunction.
	• When comparing the image projected by this projector with those displayed on the
	television or PC monitor, tints in the displayed images may be different because of
	difference in the range of color reproducibility. This is not a malfunction.
Only the motion areas	• This is caused by the computer being used. Contact the manufacturer of your
in the images supplied	computer.
from the computer
aren’t displayed.
Projected images are	• Match the output resolution of your computer with the resolution of the projector. For
obscured.	the method to change the output resolution of the computer, contact the manufacturer
	of your computer. (See page 46.)
	• Some images and texts appear obscured during the keystone adjustment. In such
	cases, use the projector without applying the keystone adjustment. (See page 12.)
Image remains	• When image from VCR is projected, it may remain freezing during speed search. This
freezing.	is not a malfunction.
Noise appears around	• In some images such as DVD, noise may appear around the recorded image. In this
the image.	case, decrease the setting value of OVER SCAN of the SIGNAL menu. (See page 29.)
Projected images are	• After the Power button or On button on the remote has been pressed, or the Lamp
flickering.	mode setting has changed, images may be flickering until the lamp lights stably. This is
	an expected behavior.
	• When selecting the input signal, Auto Position, and Color Enhancer, the projected
	image may be flickering temporarily. This is not a product malfunction.
Others
Problem	Solution
The exhaust vents	• This air comes out after cooling the inside of the projector. You may feel hot, but this is
emit warm air.	not a malfunction.
The menu can’t be	• The microcomputers inside the projector may be wrongly operating because of noise.
used.	 Press the POWER button to turn off the lamp and wait about 90 seconds. Then
	unplug the power cord from the outlet, wait at least 10 minutes, and plug the power
	cord back into the outlet. When the POWER button doesn't function, unplug the
	power cord from the outlet, wait at least 10 minutes, and then plug the power cord
	back into the outlet.
“TEMPERATURE!!” is	• This indication appears when the ambient temperature rises high. When the ambient
displayed.	temperature stays high, the lamp goes out.
	 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.
	 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	• Check that the batteries are loaded in the remote control or the batteries are not weak.
doesn’t function easily	(See page 6.)
or at all.	• Check that the remote control sensor isn’t exposed to direct sunlight or fluorescent
	light. (See page 9.)
	• Use the remote control within its operation range. (See page 9.)
	• Use the remote control at least 10 cm away from the projector.
The buttons on the	• PASSWORD FUNCTION in the FEATURE menu has been set to MENU ACCESS to
control panel (except	enable the password lock.
for the POWER button)	 Cancel the password lock or contact the person in charge of management of the
don’t function.	projector. (See page 35.)
Abnormal sound is	• Because the color wheel spins at a high speed, metallic sounds may be heard in rare
heard.	occasions. Such symptom is not a malfunction.

EN-42