Marquee 8521 Ultra Green (HUD) User's Manual
3-6
Operation
3.1.14 Power-on
To turn on the projector, press [
POWER
] on the keypad. Hold [
POWER
] down for about one second. If using an
IR remote keypad, point the keypad at the projection screen or the front of the projector. During power-on, the
projector proceeds through a series of internal diagnostic tests which last approximately 9 seconds. Once
complete, an input image should be displayed on the projection screen. If no image is displayed, press
[
SOURCE
] to display the source message. The source message displays the currently selected input. Check
that the correct source is indicated on the display.
If there is no display when [
] is pressed, check the LEDs (Light Emitting Diodes) on the projector front panel.
Only the green POWER LED should be lit. If any of the red diagnostics LEDs are lit, call your reseller for
assistance.
Note:
Allow the projector to warm up for 45 minutes before use. Critical adjustments should be performed
after the warm-up period.
Note:
Turning the projector off via a remote or built-in keypad places the projector in a "wait to operate"
mode. To remove power from the projector, unplug the power cord.
ERROR EHT
DIAGNOSTICS
V.FAIL
H.FAIL
C
LVPS
POWER 0
1
STANDBY
Figure 3-3. Rear Panel LEDs
3.1.15 Standby Mode
Standby Mode allows you to blank the display and mute the audio output while keeping the projector in a warmed-
up and ready state.
To enter standby mode, hold down [
STBY
] for about one second while at presentation level. The display blanks.
Both the green POWER LED and the yellow LED are lit. To leave standby mode, hold down [
STBY
] or [
EXIT
] for
one second. The display is then restored and the
LED is turned off.
Note:
During presentations, the standby feature is useful when you want to direct audience attention away
from the projection screen.
Note:
To prolong CRT life, it is recommended that the standby feature be used when the display is not
required.
3.1.16 Audio Functions
The Marquee 8521 does not support the audio feature
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