Mitsubishi Electronics HC7800D ユーザーズマニュアル

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EN-57
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
red
Off
Stand-by
Blinking
green
Lamp stand-by for power-off
The power cannot be turned on by pressing 
the POWER button.
Steady
green
Blinking
green
Lamp stand-by for power-on
The power cannot be turned off by pressing 
the POWER button.
Steady
green
The power is on. (Normal condition)
Abnormal condition
POWER
STATUS
CONDITION
POSSIBLE SOLUTION
Steady 
green
or
Steady 
red
Blinking orange
Abnormal temperature
•  The ventilation grilles are clogged with dust or dirt.
•  The room temperature is high.
•  Clean the ventilation grilles.
•  Relocate the projector to a cooler place.
Steady 
red
Blinking green
The protection circuit is working or the lamp is in an 
abnormal condition.
•  Wait until the STATUS indicator goes out,
then press the POWER button.
•  If the above solution is not effective,
replace the lamp.
Steady 
green
Blinking green/red
The lamp operation time exceeds the time elapsed 
until the shut-off time notice while the power is on. 
(See page 48.)
Replace the lamp.
Change with a new lamp if this problem 
recurs.
Steady 
red
Blinking red
The lamp operation time exceeds the time elapsed 
until the shut-off time notice while the power is off. 
(See page 48.)
Steady red
The lamp operation time exceeds the time elapsed 
until the shut-off time. (See page 48.)
Blinking 
green/red
Off
The lamp cover isn’t closed.
Close the cover correctly.
Steady 
or 
 
Blinking
Abnormal.
Contact your dealer.