Runco Video Xtreme VX-40d Owner's Operating Manual page 90

Maintenance and Troubleshooting
Table 5-1. Troubleshooting Chart (continued)
Symptom
The display is on and menus
appear, but there is no
picture.
A projected image from a
DVD is split or otherwise
scrambled.
Image appears "squeezed" or
vertically stretched into cen-
ter of screen.
The display is jittery or
unstable.
Image is too bright and/or
lacks definition in the bright
areas of the image.
Image appears "washed out"
and/or dark areas appear too
bright.
Colors in the image are
swapped; for example, reds
appear blue or vice versa.
The display freezes suddenly.
The projector will not turn
back on after it was powered
down, or the image disap-
pears during operation.
Possible Cause(s)
• Incorrect source selection.
• Source component is not
turned on.
• Source component is
connected incorrectly or
not at all.
• DVD player is connected
to the Component input
and set to progressive
scan mode.
• Incorrect aspect ratio
selection.
• Poor-quality or improperly
connected source.
• The horizontal or vertical
scan frequency of the
input signal may be out of
range for the projector.
• Contrast is set too high.
• Brightness is set too high.
• The Red/Pr, Green/Y or
Blue/Pb outputs from the
source are connected to
the wrong inputs on the
DHD Controller.
• Excessive voltage noise on
the AC or ground input has
interrupted the projector's
ability to lock on to a
signal.
• The projector will not turn
on for two minutes after
power-down, to protect
the lamp.
• The lamp has failed.
78 Runco VX-40d/-50d/-60d/-80d Owner's Operating Manual
Solution
• Select the correct source.
• Turn on the source
component.
• Check connections from
source component to DHD
Controller.
• Turn off progressive scan
on the DVD player. Or,
connect the DVD player to
the HD1 or HD2 input.
• Select a different aspect
ratio.
• Ensure that the source is
properly connected and of
adequate quality for
detection.
• Correct at the source.
• Lower the contrast setting.
• Lower the brightness
setting.
• Ensure that the source
outputs are connected to
the correct DHD Controller
input.
• Power down the projector
and disconnect from AC.
Then, plug in again and
power up as usual.
• Wait until the LED at the
front of the DHD Controller
turns red.
• Replace the lamp.