Accurate Technology Model 9, Installation Manual

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MAINTENANCE
3) The projection room walls and ceilings may be too reflective. Reflective ceilings,
walls, and floors should be kept to a minimum. The best projection rooms are dark with
matte finishing.
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 Phase from the Picture Adjust menu
(
PIC ) then determine if adjustment improves the display.
7) The source may be double terminated. Ensure the source is terminated (75 ohms) only
once.
Symptom: The display appears to be folded.
Cause/Remedy: 1) the phase setting may require adjustment. Select Phase from the
Picture Adjust menu ( PIC ) then determine if adjusting the phase 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 Degrees C. (95 Degrees 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.
Symptom: Colors on the display are not accurate (when using the Accurate Multi-
standard Decoder).
Cause/Remedy: 1) Color and tint settings may require adjustment.
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