XRGB3 Problem with N64

Hi,

i have some problems with my XRGB3 and im not sure whats wrong.
First at all i try my SFC jr with RGB Mod = picture perfect no issues at all
Than i try my N64 with etim rgb board = no picture, signal skips between 15/45KHz (tryed 2 rgb cables for GC/N64)
After that i try to use the N64 with my RGB cable from the SNES = no picture.
Now i got a FC AV = no picture with AV cable

Any of this consoles work on my second TV with scart input. So output and cable are fine.
I not really understand why the xrg3 have problems with this two consoles...
DC, MCD, MD2, PS1, Saturn work also fine with rgb or av.
The XRGB3 have the latest firmware installed, i run basic setting with B0.
Output from the XRGB3 i use a DVI cable to HDMI. B1 dont work VGA.

Any ideas?

regards
Chris

 

what type of sync is the 64 using? also AV fami through composite on scaler should just work. thats odd. i know the one i had hated MD composite.

 

OK av fami work now i used a scart adapter before...

For the N64
I had a bridge to Luma, V--L. On the N64 board.

 

try changing sync source from luma to another, maybe even try composite.

 

tryed this before luma, composite and chroma but nothing on the xrgb3

 

Doesn't the xrgb3 need csync from N64?

 

need ultra hdmi mod