Edirol V-4 issue

[Pattern123]

I have an Edirol V-4 which keeps losing output and the projector then drops out momentarily to blue screen then flicks back as it autosenses Video. I have checked the solder joints on the master outputs, but it doesn't seem to have stopped it. Has anyone else had the same problem and successfully solved it?

[AHYoung]

id guess its more likely a cable issue, but try the preview out? or for that matter out of the y/c , If its defiitely not the cable, or the input to the projector, its back to Roland for a proper repair. In the meantime you can minimise the effects by changing blue to black on the projector.

 

 

[david.elsbury]

Have you changed the cable? Is it a very long run? Have you tried putting a DA at the start of the run to boost it?

 

David

Edit :are the projector and mixer being fed power from the same pplace? Sometimes a ground loop can manifest itself in that way.

[sleepytom]

Dodgy fade to black knob can cause this, you can turn it off in the utility menu.

 

Also can be poor sync levels on the inputs - if they are out of range the V4 can glitch the output enough to trip up a sensitive projector. There is adjustment for the sync level in the menu somewhere.

 

The V4 is quite a cheapo design really - internally its a fragile thing with a few ribbon connectors that can come loose, if your familiar with the hot end of a soldering iron then have the lid off and check for anything obvious.

 

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Alastair's

advice and set the projector to black background, I always turn off auto input scan too, select the input your using manually and then if there is a glitch it comes back a lot quicker than if it searches round each input hoping to find a signal.