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MAINTENANCE
Symptom:
Cause/Remedy:
Symptom:
Cause/Remedy:
Symptom:
Cause/Remedy:
Symptom:
Cause/Remedy:
Symptom:
Cause/Remedy:
4.6
The upper portion of the display is waving, tearing, or jittering.
1) This sometimes occurs when the source is a VCR or video signal.
Change the sync mode by selecting the fast/slow sync option from
the Picture Adjust menu (
The upper or lower portions of the display are cut off.
1) A top or bottom blanking adjustment may be required. Select the appro-
priate blanking adjustment option from the Picture Adjust Menu (
then adjust the amount of blanking. Note: A 0% slidebar level indicates
no blanking.
2) A phase adjustment may be required. Select Position from the Picture
Adjust menu (
). Adjust position so that the entire picture is visible
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and centered.
One side of the display is cut off.
1) A left or right blanking adjustment may be required. Select the appro-
priate blanking adjustment option from the Picture Adjust menu (
then adjust the amount of blanking. A 0% slidebar level indicates no
blanking.
2) A position adjustment may be required. Select Position from the Picture
Adjust menu (
). Adjust phase so that the entire picture is visible
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and centered.
3) The retrace time of the projector may be longer than the horizontal
blanking time of the signal. Press
time to Short.
Transitions between colors are fuzzy.
1) Convergence may require adjustment. Perform a convergence on the
selected source.
2) The projector may not be optically aligned for the installation. Has the
throw distance changed significantly since the last optical alignment? If
so, have the projector re-aligned. Refer to section 2.8, Optical Alignment.
The display is very faint.
1) Contrast or brightness settings may be set too low.
2) The projection room may be too bright. Lower the intensity of
projection room lighting. Reduce light reflections as much as possible.
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.
).
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5
to change projector retrace
1
8
UTIL
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