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4) The projector may be too far from the screen.
5) The location of the audience with respect to the screen may not be
adequate. Make sure the audience is within the viewing angle set by the
projector and screen position, and the screen type.
6) The phase setting may require adjustment. Select Position from the
Picture Adjust menu (
the display.
7) The source may be double terminated. Ensure the source is terminated
(75 Ω) only once.
Symptom:
The display appears to be folded.
Cause/Remedy:
1) The phase setting may require adjustment. Select Position from the
Picture Adjust menu (
improves the display.
Symptom:
The display is reversed or upside down.
Cause/Remedy:
1) The projector scan configuration is not set correctly for the installation
type. Refer to section 2.3, Hardware Setup, to set the projector's scan
configuration.
Symptom:
The display is not sharp or "clean".
Cause/Remedy:
1) Display adjustment may be required. Adjust the brightness, contrast,
focus, and detail settings.
2) Is a BNC T connector being used? Use a distribution amplifier to boost
signal levels.
3) Is the input signal properly terminated?
4) The screen size may be too large. As screen size increases, magnification
increases which reduces brightness. This then reduces the contrast ratio
which affects legibility. Sharp defined edges become soft and fuzzy.
5) The source input signal may be of low quality.
Symptom:
Display quality seems to drift (from good to bad, bad to good, etc.).
Cause/Remedy:
1) The operating temperature of the projector may not be constant. Is the
projector close to heating and/or air conditioning vents? The ambient
temperature after warm-up should be kept constant below 35° C (95° F).
Make sure none of the projector ventilation slots are obstructed.
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. For the selected source, set ASR to on. The projector will then
try to use display parameter settings which are best matched for the source.
) then determine if adjustment improves
PIC
) then determine if adjusting the phase
PIC
MAINTENANCE
4.7
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