Runco VX-22D 用户指南

Table 5-1 provides some general guidelines for troubleshooting problems you may 
encounter with the VX-22d. If the suggested solutions fail to resolve the problem or if you 
encounter an issue not described here, please contact Runco Technical Support. 

The projector does not turn 
on after initial installation. The 
power LED on the front of the 
DHD Controller lights red after 
you press the power button. 

• The DHD Controller is 

connected to the VX-22d 
incorrectly or not at all. 

 

• The VX-22d is not plugged 

in or the AC outlet is not 
active. 

• Verify the DVI-DL cable 

connection from the DHD 
Controller to the VX-22d 
(Figure 3-10).

• Ensure that the VX-22d is 

plugged in and that the AC 
outlet is active. 

The projector and DHD Con-
troller are both on, but there is 
no video image on-screen. 

• Incorrect source selection. 
• Source component is not 

turned on. 

• Select the correct source. 
• Turn on the source. 

A projected image from a 
DVD is split or otherwise 
scrambled. 

• DVD player is set to 

progressive scan mode. 

• Turn off progressive scan 

on the DVD player. 

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. 

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 
DHD Controller. 

• Ensure that the source 

outputs are connected to 
the correct DHD Controller 
input. 

Image geometry is incorrect.

• Incorrect aspect ratio 

selection.

• Select the aspect ratio that 

best matches the source 
image and screen size 
(refer to Table 4-1). 

The projector will not turn 
back on after it was powered 
down, or the image disap-
pears during operation. 

• The projector will not turn 

on for two minutes after 
power-down, to protect 
the lamp. 

• The lamp has failed. 

• Wait two minutes until the 

LED at the front of the 
DHD Controller turns red. 

 

• Replace the lamp.