- Thread starter lukemorse1
- Start date
Sega System 32 decrypted ROMs:
https://gurudumps.otenko.com/system32/index.html
Some additional info here:
https://web.archive.org/web/2021070...0/conversions-on-sega-system-32-hardware.html
https://gurudumps.otenko.com/system32/index.html
Some additional info here:
https://web.archive.org/web/2021070...0/conversions-on-sega-system-32-hardware.html
I've done up a schematic of the 834-7739-02, and put in the modifications required to jumper it to a 837-7429-01. All IC naming, and layout matches the 834-7739-02, and all red text is the associated value for 837-7429-01.
Please note though, this does not make it 1-1 compatible with a 837-7429-01. It seems that we can convert a 834-7739-02 to a spiderman, but I can't confirm this is the case for all games (most likely yes, but no guarantee's), this is because of CNH A6 and B6, and how it affects the associated latches they are connected to.
Anyways, the IC mapping table is the following
And the schematic I did up is here. Hope this can help someone in the future. Please let me know if anyone here wants to build a replica of this board, and I will share my EasyEDA project with you.
Schematic (too large to attach here) - https://drive.google.com/file/d/1mjuxLnCjjhtQDSfYQaLMohBVQo5Hye-t/view?usp=sharing
The SVG above doesn't seem to load properly for me without downloading it first, and opening it from local disk.
Please note though, this does not make it 1-1 compatible with a 837-7429-01. It seems that we can convert a 834-7739-02 to a spiderman, but I can't confirm this is the case for all games (most likely yes, but no guarantee's), this is because of CNH A6 and B6, and how it affects the associated latches they are connected to.
Anyways, the IC mapping table is the following
| RM 834-7739-0x | SM 837-7429-0x | |
| 74F374PC | IC36 | IC5 |
| 74F374PC | IC35 | IC12 |
| 74F374PC | IC34 | IC19 |
| 74F374PC | IC33 | IC4 |
| 74F245N | IC32 | IC2 |
| 74F245N | IC31 | IC3 |
| 74F245N | IC30 | IC10 |
| 74F245N | IC29 | IC17 |
| 74F245N | IC24 | IC20 |
| 74F245N | IC23 | IC8 |
| 74F245N | IC15 | IC15 |
| 74F245N | IC4 | IC1 |
| 74HC373E | ||
| 74HC373E | ||
| 74HC373E | ||
| 74HC373E |
And the schematic I did up is here. Hope this can help someone in the future. Please let me know if anyone here wants to build a replica of this board, and I will share my EasyEDA project with you.
Schematic (too large to attach here) - https://drive.google.com/file/d/1mjuxLnCjjhtQDSfYQaLMohBVQo5Hye-t/view?usp=sharing
The SVG above doesn't seem to load properly for me without downloading it first, and opening it from local disk.
Last edited:
