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Maintenance and Troubleshooting
58 Vistage™ Series Flat-Panel Display Installation/Operation Manual
PRE
L
IMINAR
Y
The display is jittery or
unstable.
• Poor-quality or improperly
connected source.
• The horizontal or vertical
scan frequency of the
input signal may be out of
range for the display.
• Ensure that the source is
properly connected and of
adequate quality for
detection.
• Correct at the source.
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.
• 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.
Table 5-1. Troubleshooting Chart (continued)
Symptom Possible Cause(s) Solution