Runco VX-40d 用户手册

The display is on and menus 
appear, 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 connections from 

source component to DHD 
Controller. 

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

• DVD player is connected 

to the Component input 
and set to progressive 
scan mode. 

• Turn off progressive scan 

on the DVD player. Or, 
connect the DVD player to 
the HD1 or HD2 input. 

Image appears “squeezed” or 
vertically stretched into cen-
ter of screen. 

• Incorrect aspect ratio 

selection. 

• Select a different aspect 

ratio. 

The display is jittery or 
unstable.

• Poor-quality or improperly 

connected source. 

 

 

• The horizontal or vertical 

scan frequency of the 
input signal may be out of 
range for the projector. 

• Ensure that the source is 

properly connected and of 
adequate quality for 
detection. 

• Correct at the source. 

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. 

The display freezes suddenly. 

• Excessive voltage noise on 

the AC or ground input has 
interrupted the projector’s 
ability to lock on to a 
signal.

• Power down the projector 

and disconnect from AC. 
Then, plug in again and 
power up as usual.

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 until the LED at the 

front of the DHD Controller 
turns red. 

 

• Replace the lamp.