SERVICE MANUAL LC-XB41 - TechEdu.com

Troubleshooting
Indicators and Projector Condition
Check the indicators for projector condition.
Indicators
POWER
red/green
WARNING
red
LAMP
REPLACE
yellow
Projector Condition
The projector is off. (The AC power cord is unplugged.)
Q
The projector is preparing for stand-by or the projection lamp is
being cooled down. The projector cannot be turned on until cooling
is completed and the POWER indicator stops blinking.
Q
The projector is ready to be turned on with the POWER ON-OFF
button.
Q
The projector is operating normally.
Q
The projector is in the Power management mode.
Q
The temperature inside the projector is abnormally high. The projector
cannot be turned on. When the projector is cooled down
enough and the temperature returns to normal, the POWER indicator
emits a red light and the projector can be turned on. (The
WARNING indicator keeps blinking.) Check and clean the air filter.
Q
The projector has been cooled down enough and the temperature
returns to normal. When turning on the projector, the WARNING
indicator stops blinking. Check and clean the air filter.
Q
The projector detects an abnormal condition and cannot be turned
on. Check power supply circuit and fans control circuit.
• • • green. • • • red • • • off
• • • blinks green.
• • • blinks red.
Q When the life of the projection lamp draws to an end, the LAMP REPLACE indicator lights yellow. When
this indicator lights yellow, replace the projection lamp with a new one promptly. Reset the lamp replacement
counter after replacement of the lamp.
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