Mitsubishi Electronics HC4900 Indicators, Normal condition, Abnormal condition, Condition

Indicators

This projector has two indicators, each of which shows the operation condition of the projector.

The following offer solutions to possible problems. If these problem persist, turn the projector off and consult your

dealer.

STATUS indicator POWER indicator

Normal condition

POWER	STATUS	CONDITION	NOTE
Steady		Stand-by
	Off
red
Steady	Blinking	Lamp stand-by (about 1 minute)	The POWER button cannot be used to
			switch between on and off.
green	green
Steady	Steady	The power is on. (Normal condition)
green	green

Abnormal condition

POWER	STATUS		CONDITION	POSSIBLE SOLUTION
Steady			Abnormal temperature
			• The ventilation grilles are clogged with dust or dirt.	• Clean the ventilation grilles.
green
			• The room temperature is high.	• Relocate the projector to a cooler place.
or
	Blinking orange
Steady
red
			The protection circuit is working or the lamp is in an	• Wait until the STATUS indicator goes out,
Steady			abnormal condition.	then press the POWER button.
	Blinking green			• If the above solution is not effective,
red
				replace the lamp.
Steady			Lamp operation time warning. (Total lamp operation	Replace the lamp.
	Blinking green/red		time reached 3750 hours*1 while the power was on.)	Change with a new lamp if this problem
green				recurs.
Steady			Lamp operation time warning. (Total lamp operation
	Blinking red		time reached 3750 hours*1 while the power was off.)
red
Steady			Lamp operation time warning. (Total lamp operation
	Steady red		time reached 5000 hours*1*2 while the power was off.)
red
			The lamp cover isn’t closed.	Close the cover correctly.
Blinking	Off
green/red
	Steady		Abnormal.	Contact your dealer.
Blinking		or
green/red
	Blinking

*1 Duration when LAMP MODE of the INSTALLATION menu is set to LOW. When it is set to STANDARD, this duration will be shorted.

*2 Duration when LAMP MODE is set to STANDARD, this duration will be shorted up to 2000 hours.

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