Knoll Systems HDP404 - Manual (Page 12)

12
Sleep Timer
The projector also has a sleep timer feature that automatically turns the projector off after four
hours. See page 21.
Turning off the projector
Press the
Power button on the remote or keypad to turn the projector off. The lamp turns off and
the LED blinks green for one minute while the fans continue to run to cool the lamp. While the
LED is blinking green, the projector does not accept any user input. Once the cooling process is
complete, the LED lights solid green and you can turn the projector back on, if desired.
NOTE: Once the projector has been turned off, you must wait for one minute before turning the
projector on again. This allows the lamp to properly cool and extend the lamp life up to 3000
hours). The LED light is solid green when the cooling process is complete.
NOTE: The biggest cause of early lamp failure is not allowing the lamp to cool properly, either
from power failures or disconnecting power to the projector before the fan can cool the lamp
properly.
Troubleshooting your setup
If your image appears correctly on the screen, skip to the next section. If it does not, troubleshoot
the setup. The LED on top of the projector indicates the state of the projector and can
help you troubleshoot.
The status indicator on the top of the projector can help you diagnose any problems the projector
is experiencing.