Please bare with me.  I have...

S1000
A3
LB 2
Matrice 600 Gimbal mounting bracket
X5
CrystalSky Ultra
Everything works great!  Decided to put together a S900

S900
N3
LB 2
Matrice 600 Gimbal mounting bracket
Same X5
Same CrystalSky
I get no video feed.  Firmwares are all up to date.  Changed all the cables with the ones from the 1000 (I know they work). Changed the gimbal mounting bracket with the 1000 (I know it works).  Moved the LB 2 from the 1000 to the 900.  Still no video.  But it gets better, put the LB 2 from the 900 on the 1000.  No video on the 1000.

Been screwing with this thing on and off all summer.  Anybody have any ideas?

Thanks

I had also problems with N3/A3, LB2 and Z3.
Only with these settings it works.
Best regards,
Wilhelm

Thanks,  I'll try it right now.

Thanks WiSi-Testpilot, but no joy.