Optoma EP721 User Manual

5

English

Warning Indicator



  When the “LAMP” indicator lights red, the projector will 

automatically shut itself down. Please contact your local 

reseller or service center. See pages 54-55. 



  When the “TEMP” indicator lights red, it indicates the pro-

jector has overheated. The projector will automatically shut 

itself down.

  Under normal conditions, the projector can be switched on 

again after it has cooled down. If the problem persists, you 

should contact your local dealer or our service center. 

See pages

 

54-55. 



  When the “TEMP” indicator flashes red, it indicates the fan 

has failed. Please contact your local dealer or our service 

center. See pages 54-55. 

Powering Off the Projector

1.   Press the “Power” button to turn off the projector lamp, 

you will see a message displayed on the projector’s screen. 

2.   Press the “Power” button again to confirm,  

otherwise the message will disappear after 15 seconds.

  When you press “Power” button second, the system will 

show the timing countdown on the screen. 

3.  The cooling fans continue to operate for about 10 seconds 

for cooling cycle. When the Power LED turn Amber, 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” 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.