79
Input/output
settings
Introduction Connections Basic operation Switching images Effects BPM sync External devices Video fader Appendices
Troubleshooting
If you suspect a malfunction, please check the following points. If this does not resolve the problem, contact a nearby EDIROL/Roland
Service Center.
Problems with the image output
Problem Cause and Action
The power does not turn on when
you press the [POWER] switch.
Could you be using an AC adaptor other than the included one?
Use the included AC adaptor.
Problems with the image output
Problem Cause and Action
No image is output
Could the [OUTPUT FADE] fader be lowered?
With the factory settings, lowering the [OUTPUT FADE] fader will fade the image. Raise the
[OUTPUT FADE] fader.
p. 32
Have you used the INPUT SELECT buttons to select an appropriate input channel?
Select a channel into which an image is being input.
Could the [FADE] button be blinking?
If the [FADE] button is blinking, you can use the [CONTROL] fader to fade the image of bus A or
bus B. Raise the [CONTROL] fader.
p. 31
Is an image being output from the connected video device or PC?
Have you selected the correct input on the projector or television monitor to which the V-8’s
signal is being output?
Is the correct video format (NTSC or PAL) specified?
Specify NTSC or PAL as appropriate for the format of the input signal.
p. 59
Operating the video fader does not
change the image
Could the same image be selected for bus A and bus B?
If the same image is selected for bus A and bus B, operating the video fader will not change the
output image. Select different images for bus A and bus B.
Image is distorted
It may be that the level of the synchronization signal being output by your video equipment
is below the allowable level.
Try adjusting the “Utility” menu item “Video Sync Threshold.” This may allow synchronization to
be achieved so that the image will display correctly.
Is the correct video format (NTSC or PAL) specified?
Specify NTSC or PAL as appropriate for the format of the input signal.
p. 59
Could you have used the [PC INPUT SELECT] switch to change PC inputs?
When you switch PC inputs, it will take some time for the input to stabilize. We recommend that
you use the monitor to verify the image.
Could you be displaying moving images from a PC input?
Displaying moving images from a PC input may cause skewed or flickering images. This is a
phenomenon called “tearing,” and is not a malfunction.
p. 55
Could you be using the INPUT SELECT buttons to switch the image?
If the video fader is not set all the way to the bus A or bus B position, using the INPUT SELECT
buttons to switch channels will cause the image to be distorted, but this is not a malfunction.
Before using the INPUT SELECT buttons to switch between images, perform the following oper-
ations or settings. This will allow smooth transitions between images without switching noise.
Set the video fader all the way to the bus A or bus B position (the bus that is outputting the
image).
Raise the value of the “Utility” menu item “Input Select Delay Time.”
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