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Runco CX-40HD/CX-46HD Owner’s Operating Manual 49
PRE
L
IMINAR
Y
5.1
Troubleshooting Tips
Table 5-1 provides some general guidelines for troubleshooting problems you may
encounter with the Crystal Series LCD Display. If the suggested solutions fail to resolve the
problem or if you encounter an issue not described here, please contact your Runco
dealer or Runco Technical Support.
5. Maintenance and Troubleshooting
Table 5-1. Troubleshooting Chart
Symptom Possible Cause(s) Solution
The display does not turn on
after initial installation.
•The Crystal Series LCD
Display is not plugged in or
the AC outlet is not active.
•The remote control
batteries have run out.
• Ensure that the Crystal
Series LCD Display is
plugged in and that the AC
outlet is active.
• Replace the batteries.
The display is on, but there is
no picture.
• Incorrect source selection.
• Source component is not
turned on.
• Source component is
connected incorrectly or
not at all.
• Select the correct source.
• Turn on the source
component.
• Check video connections
to source component.
Picture is okay, but there is no
sound.
• Audio output is muted.
• Volume setting is too low.
• Source component is
connected incorrectly or
not at all.
• Speakers are connected
incorrectly or not at all.
• Audio settings are
incorrect.
• Press the MUTE button
on the remote control.
• Turn up the volume.
• Check audio connections
to source component.
•Check speaker
connections (Figure 3-8).
• Check the following
settings:
Digital Audio Out
(page 36), TV Speaker
(page 36) and HDMI Audio
(page 41).
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.
Black or white dots appear on
all channels or a specific
channel.
• Antenna or cable TV
source is connected
incorrectly or not at all.
• Broadcast signal is weak.
• Check the antenna or
cable TV connection.
• If using an off-air antenna,
adjust its position or
location.