Macbook Pro DDJ-SX3

@Patrick > If you have the USB cable connected to the "A" PC connection on the SX3, the channel input selectors also have to be set to "USB A":

@Patrick > Can you tell me where you "see it communicating"?

Is it only the audio that's not working?

It won't load or play a song so I guess yes, just the play function etc

I don't understand -- you say it controls the faders / volume, but you can't load a song. Can you elaborate?

So If I hit Load from the controller, noting happens on the Macbook. But If I slide the Fader on the controller, i see it move on the macbook so I know they see each other. If press play on the controller nothing happens on the macbook. 

Does that make sense?

See what move -- what software are you using?

Virtual DJ 8

On My IMac (which I have plugged into USB A), everything works perfect

So when you slide the volume up on your controller, you can see it move up on the Virtual DJ software on the macbook screen. Just the Fader etc

Do you have the SX3 properly configured as the audio device in the preferences?

How do I make sure?. I am just going by default settings

Is there a separate setting to put it on USB B?

I do also notice that if I press Play on the macbook manually (using keypad), I do not see and levels showing on the controller volume so it does not appear it sees the input of the music

If you haven't done so, you definitely want to open the Virtual DJ preferences to check the configuration of the audio device... that's probably why nothing is happening.

I have but Im no sure what i should be looking for. I have default settings just like on my iMac. The iMac is working perfect 

The settings are the exact same as my iMac 

Have you installed the drivers?

Can you post a screenshot of the settings page?

I really appreciate your help

Patrick, you haven't configured the software for OUTPUT to the SX3! No wonder it doesn't work.

What haven't I done?

You've got it now (in that last photo).

It is still not working

what are some other things we can try?

@Patrick > You've configured the outputs for each deck to the SX3. I'm not sure why the SX3 isn't selected in the upper portion of the window, but it should be working for you.

Thats exactly how it is set up on My iMac and that is working perfect

I updated the firmware from my iMac to the controller. I don't need firmware on Macbook, correct? That is just for the controller ?

No, the firmware is on the unit itself.

Does the SX3 work with Serato DJ?

I don't have Serato on macbook. Should i download it ? and try that?

Yes please.