Runco cx-57hd User Manual

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Runco CX-52HD/CX-57HD Owner’s Operating Manual
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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 
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. 
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 
Crystal Series LCD. 
• Ensure that the source 
outputs are connected to 
the correct Crystal Series 
LCD input. 
RGB-HD images appear 
“noisy.”
• Clock and Phase settings 
need adjustment. 
• Manually adjust Clock and 
Phase settings, or perform 
an Auto-Adjust (refer to 
“Invalid mode” appears 
on-screen. 
• The resolution and 
frequency of the video 
card in the computer are 
not compatible with the 
Crystal Series LCD.
• Select a compatible 
resolution and vertical 
frequency (refer to 
Computer Signal 
Compatibility 
on 
page 61). 
The image is too large or too 
small.
• Image size needs 
adjusting. 
• Adjust the image size (refer 
Poor broadcast sound quality.
• The sound quality of a 
stereo broadcast may be 
unstable in an area with a 
weak signal. 
• Use  the  MTS/SAP button 
on the remote control to 
select mono. 
Table 5-1. Troubleshooting Chart (continued)
Symptom
Possible Cause(s)
Solution