Dreamcast VA1 need help with traces

Hello everyone.

I want to repair some broken traces on my VA1 Dreamcast.
The problem is, first the Dreamcast took 5 minutes from bootscreen to systemmenu without any animation and won't read any games cause it hung up when selecting.

I can't repair it just by following the traces, cause they run under an IC.
I have several broken traces from Pin 23-44 on IC501 (Bootrom), going to IC502 (Flashrom).
I don't know how they are connected from IC501 to IC502.

So I hope someone could help me out with a diagram or something likewise.

cheers
DragoonC

 

not too sure but if i remember correctly someone on here had pictures on the dreamcast boards with the components removed, that may be of some help.

 

yeah, that would be a great help too me.
but where to find ?