Nemesis1207
Student
Hey guys, I come bearing gifts:
System 16A 2.0 Schematics - https://drive.google.com/file/d/1v7cyPBdQm3mg_MCXk0vj-4IHlpH5dmn5/view
System 18 Schematics (Partial) - https://drive.google.com/file/d/1EwnwaDPGr_eDXOomsDTKIprU65Bwz33Y/view
System 32 Schematics (Partial) - https://drive.google.com/file/d/1e2IddEfNwnbM8oSHfzzec0rT5j6ZL8Ga/view
Super HangOn Schematics (Rescan) - https://drive.google.com/file/d/1DtmlNc7s2-Q60lNLeJrV4XRbkTgW68ew/view
I've had three original schematics fall into my hands for Sega arcade hardware, and a System 16A 2.0 scan done by another party.
The System 32 schematics are unfortunately missing the first page, which covers the CPU, RAM, and bus arbiter, but all the other pages are there. This page should be easy enough to mostly reconstruct, as we have the pinouts for the RAM and CPU, and many of the lines from the bus arbiter are named and exposed as inputs to other pages of the schematics, so it'd be a relatively quick process to fill in the blanks with some quick tracing on the board. I'll scan in the missing page if it turns up.
The System 18 schematics are very incomplete, with only the last page being present. That sheet names all the lines on the various connectors on the board. Fortunately with the work jotego did to trace out the board, we already have system 18 schematics, so this sheet can be used to add "official" names to the various lines mapped out in that process. If the rest of the pages turn up, I'll scan them in.
The Super HangOn schematics are a unique copy, distinct from the one which has previously been circulated, which is helpful because those schematics were the lowest resolution ones available and hard to read in places. I'll be placing a new higher resolution scan of those online later today (Edit - Link now added). These schematics are complete.
The System 16A 2.0 schematics describe the single-level system 16A hardware with the separate ROM board, often (incorrectly) named as "pre-system 16". It's this one here:
This hardware came after the original System 16A 1.1 version, the schematics for which have already been scanned. We now have the scans for the 2.0 version of this system too. These schematics are complete.
If I eventually have the time, my plan is to put documentation and information up for all the Sega arcade hardware on my site at http://techdocs.exodusemulator.com. Until then, you can find a lot of materials uploaded to the backing google drive for the site at https://drive.google.com/drive/folders/1011Us5E-AvRVPPhTkg7gdDacz5CbqP-M, including all the publicly available Sega hardware schematics that have been shared to date.
System 16A 2.0 Schematics - https://drive.google.com/file/d/1v7cyPBdQm3mg_MCXk0vj-4IHlpH5dmn5/view
System 18 Schematics (Partial) - https://drive.google.com/file/d/1EwnwaDPGr_eDXOomsDTKIprU65Bwz33Y/view
System 32 Schematics (Partial) - https://drive.google.com/file/d/1e2IddEfNwnbM8oSHfzzec0rT5j6ZL8Ga/view
Super HangOn Schematics (Rescan) - https://drive.google.com/file/d/1DtmlNc7s2-Q60lNLeJrV4XRbkTgW68ew/view
I've had three original schematics fall into my hands for Sega arcade hardware, and a System 16A 2.0 scan done by another party.
The System 32 schematics are unfortunately missing the first page, which covers the CPU, RAM, and bus arbiter, but all the other pages are there. This page should be easy enough to mostly reconstruct, as we have the pinouts for the RAM and CPU, and many of the lines from the bus arbiter are named and exposed as inputs to other pages of the schematics, so it'd be a relatively quick process to fill in the blanks with some quick tracing on the board. I'll scan in the missing page if it turns up.
The System 18 schematics are very incomplete, with only the last page being present. That sheet names all the lines on the various connectors on the board. Fortunately with the work jotego did to trace out the board, we already have system 18 schematics, so this sheet can be used to add "official" names to the various lines mapped out in that process. If the rest of the pages turn up, I'll scan them in.
The Super HangOn schematics are a unique copy, distinct from the one which has previously been circulated, which is helpful because those schematics were the lowest resolution ones available and hard to read in places. I'll be placing a new higher resolution scan of those online later today (Edit - Link now added). These schematics are complete.
The System 16A 2.0 schematics describe the single-level system 16A hardware with the separate ROM board, often (incorrectly) named as "pre-system 16". It's this one here:
This hardware came after the original System 16A 1.1 version, the schematics for which have already been scanned. We now have the scans for the 2.0 version of this system too. These schematics are complete.
If I eventually have the time, my plan is to put documentation and information up for all the Sega arcade hardware on my site at http://techdocs.exodusemulator.com. Until then, you can find a lot of materials uploaded to the backing google drive for the site at https://drive.google.com/drive/folders/1011Us5E-AvRVPPhTkg7gdDacz5CbqP-M, including all the publicly available Sega hardware schematics that have been shared to date.
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