Toshiba TDP-MT500 owner manual Troubleshooting

			TROUBLESHOOTING
Projected images are irregular.
Phenomenon		Check/Countermeasure
Projected images are distorted.	•		Adjust the projector and the screen so that they may become perpendicular to each other. (See Page 11.)
Projected images are	•		Adjust BRIGHT and CONTRAST in the picture quality menu. (See Page 28.)
dark.	•		Replace the lamp to a new one. (See Page 32 and 33.)
Projected images are	•		Adjust the focus. (See Page 18 and 22.)
blurred.	•		Check if the lens cap is not put on.
	•		Clean the lens.
	• Adjust “FINE” and “DIVIDING RATIO” in the signal setting menu. (See Page 30.)
	• Adjust BRIGHT and CONTRAST in the picture quality menu. (See Page 28.)
	• Adjust the projector and the screen so that they may become perpendicular to each other.
			(See Page 11.)
White dots are seen in	•		This phenomenon is proper to DLP projector and is not a failure. (A very small number of
projected images.			pixels may be constantly lighting on or off, but this is not a failure. Pixels of more than
Black dots are seen in			99.99% are effective ones.)
the projected images.
A rainbow-color brume pattern	•		This pattern is a color breaking noise that occurs in DLP system in principle. This is not a
is seen on projected images.			failure.
Fine streak pattern is seen	•		This phenomenon occurs due to the interference with the screen surface, and is not a
on projected images.			failure. Try to replace the screen or defocus the lens a little.
Projected images are	•		Securely plug the cable connecting the external equipment to the bottom.
disturbed.	•		Keep the projector away from equipment generating interfering radiowaves.
Tint of projected images	•		Check if the cable connecting the external equipment is broken.
is irregular.
Others
Phenomenon		Check/Countermeasure
A hot air comes out of		•	This air comes out after cooling the inside of the projector. It may feel hot, but is not a
the exhaust vent.			failure.
Menu setting is dis-		•	Affected by noises, the microcomputer in the projector may be malfunctioning.
abled.		–>Turn off POWER once, and after 2 minutes turn it on again.
		•	If POWER can not be turned off, turn off the main power switch and leave the projector as
			it is for more than 10 minutes. Then, turn on POWER again.
Abnormal sounds oc-		•	On rare occasions, a metallic clank occurs because the color wheel is rotating at a high
cur.			speed. But, this is not a failure.

If the following phenomenon occurs after the lamp has been replaced, check the following first:

Phenomenon	Check/Countermeasure
P o w e r c a n n o t b e	•	Securely fit the rear lamp cover. (See Page 32 and 33.)
turned on.	•	Reset the lamp-used-hours. (See Page 33.)

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