Maintenance and Cleaning

Warning Indicator

The WARNING indicator shows the state of the function which protects the projector. Check the state of the WARNING indicator and the POWER indicator to take proper maintenance.

The projector is shut down and the WARNING indicator is blinking red..

When the temperature inside the projector reaches a certain level, the projector is automatically shut down to protect the inside of the projector. The POWER indicator is blinking while the projector is being cooled down. When the projector has cooled down sufficiently (to its normal operating temperature), it can be turned on again by pressing the POWER ON-OFF button.

Note:

After the temperature inside the projector returns to normal, the WARNING indicator still continues to blink. When the projector is turned on again, the WARNING indicator stops blinking.

Then check the matters below:

Did you provide appropriate space for the projector to be ventilated? Check the installing condition to see if ventilation slots are not blocked.

Is the projector not installed near the ventilation duct of air-conditioning equipment which may be hot? Install the projector away from the ventilation duct of air-conditioning equipment.

Are the air filters clean? Clean the air filters periodically. (p.52)

The projector is shut down and the WARNING indicator emits a red light..

When the projector detects an abnormal condition, it is automatically shut down to protect the inside and the WARNING indicator becomes red. In this case, disconnect the AC power cord and reconnect it, and then turn the projector on once again for check. If the projector cannot be turned on and the WARNING indicator emits a red light, disconnect the AC power cord and contact the service station for check and repair.

CAUTION

DO NOT LEAVE THE PROJECTOR WITH THE AC POWER CORD CONNECTED UNDER THE ABNORMAL CONDITION. IT MAY RESULT IN FIRE OR ELECTRIC SHOCK.

Top Control

WARNING

blinking red

WARNING

Top Control emit red light

Maintenance & Cleaning

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Sanyo PLC-XU74 owner manual Maintenance and Cleaning, Then check the matters below, Maintenance & Cleaning