Mirage 2000 User Manual page 124

Symptom
'
CAUSE / REMEDY:
Symptom
'
CAUSE / REMEDY:
Symptom
'
CAUSE / REMEDY:
Symptom
'
CAUSE / REMEDY:
Symptom
'
CAUSE / REMEDY:
Symptom
'
CAUSE / REMEDY:
Symptom
'
CAUSE / REMEDY:
Portions of the display are cut off or wrap to the opposite edge...
1. Reduce top, bottom, left or right blanking from within the Size and Position
menu. Check size and position adjustments.
2. Resizing may need adjustment. Adjust until entire image is visible and centered.
The display appears compressed or stretched...
1. The frequency of the pixel sampling clock is incorrect for the current source.
2. The Size and Position options may be adjusted poorly for the incoming source
signal. See 3.6, Adjusting the Image.
Display quality appears to drift from good to bad, bad to good...
1. The operating temperature of the projector may be fluctuating. Watch that the
projector is not located too close to heating/air conditioning vents.
2. The source input signal may be of low quality.
3. The horizontal or vertical frequency of the input may have changed at the source
end.
The display has suddenly frozen, or an unknown menu has appeared...
1. You may have accidentally entered a special engineering code using the
in combination with certain numbers, or you may have selected the "Freeze
Image" option. Press
presentation level.
2. If the screen blacks out inexplicably, it is possible that excessive voltage noise on
the AC or ground input has interrupted the projector's ability to lock on to a
signal. Turn the projector off, wait for the lamp fans to stop, and unplug. Plug in
again and power up as usual.
The display is not sharp or "clean"...
1. More display adjustment may be required–focus, brightness, contrast, pixel
tracking, pixel phase, and detail.
2. If you are using a BNC T-connector, try using a distribution amplifier to boost
signal levels.
3. Is the video input signal properly terminated? Set in Preferences menu.
4. The screen size may be too large. As screen size increases, magnification
increases, reducing brightness and clarity. See lens specifications in Section 5.
5. The source input signal may be of low quality. Try another source.
Colors in the display are inaccurate...
1. The color, tint, gamma, color space and/or color temperature settings may require
adjustment. Review all settings, and refer to 3.6, Adjusting the Image and 3.7,
Configuring System Parameters.
The display is not rectangular...
1. Check leveling of the projector. If necessary, try relocating the projector or
screen so that the lens surface and screen are approximately parallel
2. Is the vertical offset set correctly ? Adjust as necessary using the vertical offset
knob on the front of the projector.
3. The "Vertical Stretch" option may need adjustment. Also check pixel tracking.
Exit as necessary to cancel the function and return to
Mirage 2000/4000/6000 User's Manual
MAINTENANCE
Func key
4-15