Maintenance and Troubleshooting

Table 5-1. Troubleshooting Chart (continued)

Symptom

Possible Cause(s)

 

Solution

 

 

 

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) on

source are connected to

 

the correct DHD Controller

one or more sources.

the wrong inputs on the

 

input.

 

DHD Controller.

 

 

 

 

 

Colors in the image are

• The Red, Green or Blue

• Ensure that the DHD

swapped on all sources.

outputs from the DHD

 

Controller outputs are

 

Controller are connected

 

connected to the correct

 

to the wrong inputs on the

 

projector input.

 

projector.

 

 

 

 

 

The projected image is

• The projector is not

• Adjust the projection angle

trapezoidal in shape.

perpendicular to the

 

or apply keystone

 

screen.

 

correction (refer to

 

 

 

Display Device on

 

 

 

page 52).

 

 

 

The projector will not turn

• The projector will not turn

• Wait two minutes until the

back on after it was powered

on for two minutes after

 

LED at the front of the

down, or the image

power-down, to protect

 

DHD Controller turns red.

disappears during operation.

the lamp.

 

 

 

• The lamp has failed or

Replace the lamp.

 

reached its usage limit of

 

 

 

2000 hours.

 

 

 

 

 

 

Runco VX-4000d/VX-5000d Owner’s Operating Manual

59

Page 71
Image 71
Runco VX-5000d, VX-4000d manual Display Device on