Maintenance and Troubleshooting

Table 5-1. Troubleshooting Chart (continued)

Symptom

Possible Cause(s)

Solution

 

 

 

The display is jittery or

Poor-quality or improperly

• Ensure that the source is

unstable.

connected source.

properly connected and of

 

 

adequate quality for

 

 

detection.

 

• The horizontal or vertical

• Correct at the source.

 

scan frequency of the

 

 

input signal may be out of

 

 

range for the display.

 

 

 

 

Image is too bright and/or

• Contrast is set too high.

• Lower the contrast setting.

lacks definition in the bright

 

 

areas of the image.

 

 

 

 

 

Image appears “washed out”

• Brightness is set too high.

• Lower the brightness

and/or dark areas appear too

 

setting.

bright.

 

 

 

 

 

Colors in the image are

• The Red/Pr, Green/Y or

• Ensure that the source

swapped; for example, reds

Blue/Pb outputs from the

outputs are connected to

appear blue or vice versa.

source are connected to

the correct DHD Controller

 

the wrong inputs on the

input.

 

DHD Controller.

 

 

 

 

58

Vistage™ Series Flat-Panel Display Installation/Operation Manual

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Runco V-63HD, V-50HD operation manual Troubleshooting Chart