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Maintenance and Troubleshooting
Runco VX-4000d/VX-5000d Owner’s Operating Manual 59
PRE
L
IMINAR
Y
Image is too bright and/or
lacks definition in the bright
areas of the image.
• Contrast is set too high. • Lower the contrast setting.
Image appears “washed out”
and/or dark areas appear too
bright.
• Brightness is set too high. • Lower the brightness
setting.
Colors in the image are
swapped (for example, reds
appear blue or vice versa) on
one or more sources.
•The Red/Pr, Green/Y or
Blue/Pb outputs from the
source are connected to
the wrong inputs on the
DHD Controller.
• Ensure that the source
outputs are connected to
the correct DHD Controller
input.
Colors in the image are
swapped on all sources.
• The Red, Green or Blue
outputs from the DHD
Controller are connected
to the wrong inputs on the
projector.
• Ensure that the DHD
Controller outputs are
connected to the correct
projector input.
The projected image is
trapezoidal in shape.
• The projector is not
perpendicular to the
screen.
• Adjust the projection angle
or apply keystone
correction (refer to
Display Device on
page 52).
The projector will not turn
back on after it was powered
down, or the image
disappears during operation.
• The projector will not turn
on for two minutes after
power-down, to protect
the lamp.
• The lamp has failed or
reached its usage limit of
2000 hours.
• Wait two minutes until the
LED at the front of the
DHD Controller turns red.
• Replace the lamp.
Table 5-1. Troubleshooting Chart (continued)
Symptom Possible Cause(s) Solution