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Maintenance and Troubleshooting
Vidikron Vision Model 120 Owner’s Operating Manual 65
PRE
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IMINAR
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5.3
Troubleshooting Tips
Table 5-1 provides some general guidelines for troubleshooting problems you may
encounter with the Vision 120. If the suggested solutions fail to resolve the problem or if you
encounter an issue not described here, please contact Vidikron Technical Support.
Table 5-1. Troubleshooting Chart
Symptom Possible Cause(s) Solution
The projector does not turn on
after initial installation. The
power LED on the front of the
VHD Controller lights red after
you press the power button.
• The VHD Controller is
connected to the Vision 120
incorrectly or not at all.
• The Vision 120 is not
plugged in or the AC outlet
is not active.
• Verify the DVI-DL cable
connection from the VHD
Controller to the Vision 120
(
Figure 3-10).
• Ensure that the Vision 120 is
plugged in and that the AC
outlet is active.
The projector and VHD
Controller are both on, but
there is no video image
on-screen.
• Incorrect source selection.
• Source component is not
turned on.
• Select the correct source.
• Turn on the source.
A projected image from a DVD
is split or otherwise scrambled.
•DVD player is set to
progressive scan mode.
• Turn off progressive scan
on the DVD player.
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 VHD
Controller.
• Ensure that the source
outputs are connected to
the correct VHD Controller
input.
Image geometry is incorrect. • Incorrect aspect ratio
selection.
• Select the aspect ratio that
best matches the source
image and screen size (refer
to
Table 4-1).
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.
• Wait two minutes until the
STAND-BY LED at the front
of the VHD Controller turns
orange.
• Replace the lamp.