Optoma H57 User Manual - Page 12

English Installation Powering Off the Projector 1. Press the "Power/Standby" button to turn off the projector lamp, you will see a message "Wait 2 minutes before you can switch on again" on the on-screen display. 2. Press the "Power/Standby" button again to confirm. Otherwise the message will disappear after 10 seconds. 3. The cooling fans continue to operate for about 120 seconds for cooling cycle and the Power LED will turn red. When the light stops flashing, the projector has entered standby mode. If you wish to turn the projector back on, you must wait until the projector has completed the cooling cycle and has entered standby mode. Once in standby mode, simply press "Power/Standby" button to restart the projector. 4. Disconnect the power cord from the electrical outlet and the projector. 5. Do not turn on the projector immediately following a power off procedure. Warning Indicator ™ When the "TEMP" indicator turns red, it indicates the projector has overheated. The projector will automatically shut itself down. See page 31. ™ When the "LAMP" indicator flashes red (0.5 second intervals), it indicates a problem with the lamp. Turn off the projector and disconnect the power cord from the electrical outlet, then contact your local dealer or our service center. See page 31. ™ When the "LAMP" indicator flashes red (1 second intervals), it indicates the fan failed. Stop using the projector and disconnect the power cord from the electrical outlet, then contact your local dealer or our service center. See page 31. 12