Mirage 2000 User Manual page 123

MAINTENANCE
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Mirage 22000/4000/6000User's Manual
3. Calibrate the lens immediately after installation or reconnection, and again if the
lens is bumped or moved. This will re-establish correct ranges for all lens
functions.
ILS performance seems inaccurate...
'
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1. Refer to Operating Tips for Lens Settings and ILS
understanding of how to optimize ILS
2. A 20 minute warm-up of the projector is always recommended.
The display is jittery or unstable...
'
1. If the display is jittery or if it disappears and reappears erratically, check that the
source is properly connected and that its signal is of adequate quality for
detection. For example, it the projector scans the default input
display, and a poor quality or improperly connected source is connected, the
projector will briefly and repeatedly attempt to display an image. If no source is
connected, the "No signal present" error message appears over a blank display.
Correct the source connection.
2. The horizontal or vertical scan frequency of the input signal may be out of range
of the projector. Refer to Section 5, Specifications for scan frequency ranges.
3. The sync signal may be inadequate. Correct the source problem.
4. The input signal type may conflict with the input module. Install/use the correct
module for the source.
5. Pixel tracking, phase, filter, etc. may need more adjustment.
The display is faint...
'
1. Check Input Levels option–turn Auto input Level to "off", then "on" again.
2. Brightness and/or contrast may be set too low. Adjust as necessary.
3. Gamma may be poor. Recommended setting for most signals is "Default".
4. The projection room may be too bright. Lower the intensity of projection room
lighting and reduce light reflections as much as possible.
5. The projector may be too far from the screen. Move the projector closer.
6. The location of the audience with respect to the screen may not be ideal. Make
sure the audience is within the viewing angle set by the projector and screen
position, and the screen type.
7. The source may be double terminated. Ensure the source is terminated only once.
8. The source (if non-video) may need sync tip clamping. Enter a check in the
"Clamp Tip" box found in the Input Levels submenu.
The display is reversed and/or upside-down...
'
1. The projector's image orientation is not set correctly for the current installation.
Refer to 2.6, Operating Orientation to set the projector's image orientation to
match your installation.
The upper portion of the display is waving, tearing or jittering...
'
1. This can sometimes occur with video or VCR sources. If you are using a VCR,
make sure that the "VCR" option is checked (in Image Settings / Video Options
menu).
in Section 2 for a full
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performance.
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Input1 for a signal to