Runco Video Xtreme VX-40d Owner's Operating Manual page 84

Section 5: Troubleshooting
SYMPTOM
Portions of the display
are cut off or wrap to
the opposite edge...
The display appears
compressed ...
Data is cropped from
edges
Display quality
appears to drift from
good to bad, bad to
good...
The display has
suddenly frozen...
Colors in the display
are inaccurate...
Values in Color
Saturation slidebars
vary over time...
The display is not
rectangular...
The display is
"noisy"...
84
CAUSE/REMEDY
Resizing and/or blanking may need adjustment.
The horizontal or vertical scan frequency of the input signal
may be out of range for the projector. Refer to Section 6,
Specifications for scan frequency ranges.
The aspect ratio selected at the DHD Controller may be
incorrect.
Resizing, vertical stretch and positioning options may
be improperly adjusted for the incoming source signal.
(Example: The DVD player is set for the wrong screen
type.)
Check settings for Blanking.
If incoming data is still missing from the image, reduce
the image size to within the display area available in the
projector.
The source input signal may be of low quality.
It's possible that excessive voltage noise on the AC or
ground input has interrupted the projector's ability to lock
on to a signal. Power down the projector and disconnect
from AC. Then plug in again and power up as usual.
Try Auto Setup.
The color, tint, color space, color temperature and/or
other settings may require adjustment.
Ensure signal connections are correct.
Make sure you are using the proper channel for this
source.
Once defined, Color Saturation slidebar values fluctuate
over time and will likely be different upon subsequent
visits to this menu. This is normal and should be ignored,
as these changes do not redefine the x/y coordinates or
color gamut.
Check leveling of the projector. Make sure that the lens
surface and screen are as parallel to each other as
possible.
Display adjustment at your input source may be required.
The video input may not be terminated. Make sure the
video input is terminated (75Ω). If it is the last connection in
a loop-through chain, the video input should be terminated
at the last source input only.
The input signal and/or signal cables carrying the input
signal may be of poor quality.
If the distance between the input source device and the
projector is greater than 75 feet, signal amplification/
conditioning may be required.
If the source is a VCR or off-air broadcast, detail may be
set too high.