What's up with the crossfader on my mixer?

[One More Solo]

I've had a Numark DM950USB mixer for some time now, but the crossfader has never worked- so I mix with the volume faders. To clarify, it is all plugged in inside but has no effect on the actual sound output in any position. It also doesn't crackle or make any audible noise when I move it so it appears to be completely dead. Will replacing the crossfader make it work or do you reckon it's a deeper problem? I only ask because the crossfader is fairly expensive to replace compared to the cost of the mixer so don't want to buy a new one for no reason.

 

[One More Solo]

It's a 2 channel mixer and yeah it's set to control the active inputs. I took it apart earlier and nothing internal seems to be loose or fried so I'm confused. If I disconnect the crossfader entirely it doesn't make any difference i.e. the sound output still works fine. I would have thought if it was disconnected there would be no sound at all?

 

[One More Solo]

Yeah the crossfader is replaceable (it's about £20 quid). I'd rather replace it than buy a new unit but if needs must. Could someone do me a favour and disconnect the crossfader on their mixer and tell me if that cuts the sound output or not? If it does then I guess the crossfader has completely failed, if not then the mixer is screwed.

 

[One More Solo]

I saw the title of this thread and as I clicked it I was thinking to myself "bet it's a Numark mixer". I used to have one when I started out before I got a Pioneer, and I had two crossfaders on the same mixer go. I did not abuse them. Numark makes some good budget stuff, but you have to remember it is at the low to medium end of the market and you sometimes end up paying twice when you buy cheap. I would consider looking at Pioneer/Vestax/Allen&Heath/Behringer if you can afford them.

Hmmph. Yeah, I think I will look into a new one at some point. Just wondered if mine was repairable.