Board scan PS2 SCPH-77004 motherboard scan [WIP]

[Notjohnny]

I'm working on scanning this ps2 that I had laying around, I don't have the component photo (so if someone has one and wants to colaborate with a high res image I would be very thankful).
I only have a 1200dpi scanner, images are not as sharp as I would like.
Also, sorry for all the flux gunk and soder bridges that are on the soldermask images, flux wont come out in any way and I was tired of trying to fix little bredges after removing all the components, some traces might be severed as I didn't get to sand it smooth. Anyways here are the TIFF files I have, I'll update the thread as I scan more layers. Anyone that wants to give me some advice or colaborate with the tracing or scanning adding their own scans is welcome.

 

[Notjohnny]

Sorry for the no updates that this thread had, I've been really busy with uni stuff. So kind of an update, it seems like it is a 4 layer pcb and the stackup is: top signal layer, ground, power+signal layer, bottom signal layer. (Seems because I haven't been able to finish yet)

I found weird that there is a power+signal layer (and I even got scared thinking that I somehow sanded through an entire layer without or something). Turns out that sony used part of the power plane to place connections between EE+GS and RDRAM and connections between IOP and its RAM or ROM or whatever it is that rectangular ic.

I also got a recommendation for my future self and anyone else out there, if a pcb seems like it has some kind of blob/layer separation/it's swollen don't bother trying, the ground plane presented some blobs but this motherboard was so swollen/delayered that when I reached the power/signal layer lots of copper traces and planes just peeled away even with the slightest and softest sanding.

I will upload in a couple of hours the tiff file of the ground plane and top copper layer but I don't know if I will get the power layer, it is a lot of work to try and get it with the least damage possible and even if I do it won't be very useful as lots of copper will be missing. I apologize in advance to anybody who was specting something about this thread and/or board scan and i would be really grateful with anyone who can share some info about this console or specific motherboard.