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WydD

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Mar 6, 2019
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Hello everyone, I've lurked here for some time and here's my contribution now,

While looking for a broken trace on a CPS2 with graphical glitches. I followed a bunch of wires on the PCB. In the end, I noted them all (~850 traces) and you can consult the document here.
CPS2 B-Board Wiring Spreadsheet

Here, you can have the pinout of all the big CN and where are the main data/address bus between the custom chips, very useful to find a faulty trace quickly.
It's also a good reference to learn about the board (how ROM buses are designed, what is the purpose of each PAL and how do they work...).

I used an assembly of photos that people made on various forums to have the PCB without chips (especially the custom capcom ones).

The document is open for comments so don't hesitate if you find a mistake at some point :)
 
I saved 2 PCB with these schematics. Wish had A board too <3
 
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