14
Shutting down the projector
The projector automatically displays a black screen after no active source is
detected for 30 minutes. This black screen helps preserve the life of the pro-
jector. The image returns when an active source is detected or a remote or
keypad button is pressed.
Screen Save
You can make the black screen appear after five minutes by turning on
Screen Save in the
Settings>System
menu. See page 32. There are six time
options for the Screen Save feature. They range from five minutes to 30 min-
utes with five minute intervals.
Power Save
The projector also has a Power Save feature that automatically turns the
lamp off after no signals are detected for 20 minutes. After 10 additional
minutes with no signal, the projector powers down. If an active signal is
received before the projector powers down, the image is displayed. You
must press the Power button to display an image after 30 minutes have
passed. When Power Save is enabled, Screen Save is disabled. See page 31.
Turning off the projector
To turn off the projector, press the
power
button and verify that you want to
turn the projector off by pressing the power button again within 3 seconds.
You can cancel the shutdown by not pressing the
power
button a second
time. The lamp turns off and the LED blinks green for 1 minute while the
fans continue to run to cool the lamp. When the lamp has cooled, the LED
lights green and the fans stop. Unplug the power cable to completely power
off the projector.
Troubleshooting your setup
If your image appears correctly on the screen, skip to the next section
(page 23). If it does not, troubleshoot the setup.
The LED on top of the projector’s keypad indicates the state of the projector
and can help you troubleshoot.
The following tables show common problems. In some cases, more than one
possible solution is provided. Try the solutions in the order they are pre-
sented. When the problem is solved, you can skip the additional solutions.
Table 1: LED behavior and meaning
LED color/behavior
Meaning
solid green
The projector is plugged in, or the projec-
tor has been turned on and the software
has initialized. The projector has been
turned off and the fans have stopped.
blinking green
The power button has been pressed and
the software is initializing, or the projec-
tor is powering down and the fans are
running to cool the lamp.
blinking red
A fan or lamp failure has occurred. Make
sure the vents aren’t blocked (see
page 20).Turn off the projector and wait
one minute, then turn the projector on
again. If the projector has been working
for 2000 hours or more (page 35), replace
the lamp and reset the lamp timer.
solid red
An unidentifiable error.
Summary of Contents for 28A8757
Page 1: ...Audio Visual Products USERS MANUAL MODEL 28A8757 ...
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