AVOCOR AVF-6500 Series, Руководство по установке и эксплуатации

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54
Table 5-1. Troubleshooting Chart (continued)
Symptom Possible Cause(s) Solution
The display is jittery or unstable.
•
Poor-quality or improperly
connected source.
•
The horizontal or vertical scan
frequency of the input sign al
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.
•
Decrease the contrast setting.
Image appears “ washed out ”
and / or dark areas app ear too
bright.
•
Brightness is set too high.
•
Decrease the brightness setting.
Image is too dark.
•
Brightness and / or Backlight are
set too low.
•
Increase the brightness and / or
backlight settings.
Images from an HDMI source do
not display.
•
The resolution and frequency of
the video card in the
computer are not compatible
with the display.
•
HDMI c ab le from source to
display is either defective or too
long.
•
Select a compatible resolution
and vertical frequency (refer
to Supported Timings on page
69).
•
Try a known-good and / or
shorter HDMI c able.
Computer images do not display
correctly.
•
The resolution and frequency of
the video card in the
computer are not compatible
with the display.
•
Clock and Phase settings nee d
adjustment.
•
Select a compatible resolution
and vertical frequency (refer
to Supported Timings on page
69).
•
Adjust Clocks and Phase
settings (refer to Phase - VGA
sources on page 49 and Clock
- VGA sources on page 49).
Touch screen doesn’t work.
•
Multi-touch controller host
computer is not connected
correctly.
•
Host computer hardware or OS
incompatibility.
•
See Figure 3-7.
•
Refer to Enabling the Touch
Screen on page 34.