Difference between revisions of "CPS-3 board models"
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So far this kind of motherboard has been found on its own and inside the metal casing issued by Capcom to protect the boards on early models. It is unknown is a 95682A-1 revision exists and was released to the public. | So far this kind of motherboard has been found on its own and inside the metal casing issued by Capcom to protect the boards on early models. It is unknown is a 95682A-1 revision exists and was released to the public. | ||
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| + | The board was equipped to hold a 256K SRAM 70LLSOP and a battery, but only some boards have these as well as a serial communications port. | ||
[[File:95682A-2_2D032114.jpg|600px|center|95682A-2]] | [[File:95682A-2_2D032114.jpg|600px|center|95682A-2]] | ||
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| + | The one below does have a Toshiba TC55257DFI-70L SRAM chip, a battery and the pinout on CN3 (assumed to be a serial port). The contents of this chip and their purpose are unknown. | ||
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| + | [[File:CPS-3-Cyclone-2-SRAM.jpg|600px|center|95682A-2 with Toshiba TC55257DFI-70L SRAM]] | ||
The only section that differs is under the plastic cover as mentioned earlier, here is a close up of that area. | The only section that differs is under the plastic cover as mentioned earlier, here is a close up of that area. | ||
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[[File:Close-95682A-2_2D009906.jpg|600px|center|95682A-2 Close up]] | [[File:Close-95682A-2_2D009906.jpg|600px|center|95682A-2 Close up]] | ||
| − | + | Around the plastic cover there are some differences as well, mainly CN2, CN3 and CN4 which have no pins. CN1 is the kick harness, CN2 is 4 pin, CN3 is 8 pin and CN4 is 10 pin. This could be used for in game input or service purposes, but were removed in later revisions. | |
| − | Also several points were removed | + | Also several points were removed from the layout, probably jumpers labeled EXC7 to EXC18, three pins each. |
== 95682A-3 == | == 95682A-3 == | ||
Latest revision as of 22:26, 20 December 2010
So far we've documented three revisions of the CPS-3 board by Capcom. The main difference between them is the section of teh board that is covered by a white plastic case, which is closed by the same kind of screw CPS-III security carts use. Here are pictures of each type of motherboard and a close up of the section that differs.
If you have better information or can make a deeper analysis, we welcome you to contribute in this wiki.
95682A-2
So far this kind of motherboard has been found on its own and inside the metal casing issued by Capcom to protect the boards on early models. It is unknown is a 95682A-1 revision exists and was released to the public.
The board was equipped to hold a 256K SRAM 70LLSOP and a battery, but only some boards have these as well as a serial communications port.
The one below does have a Toshiba TC55257DFI-70L SRAM chip, a battery and the pinout on CN3 (assumed to be a serial port). The contents of this chip and their purpose are unknown.
The only section that differs is under the plastic cover as mentioned earlier, here is a close up of that area.
Around the plastic cover there are some differences as well, mainly CN2, CN3 and CN4 which have no pins. CN1 is the kick harness, CN2 is 4 pin, CN3 is 8 pin and CN4 is 10 pin. This could be used for in game input or service purposes, but were removed in later revisions.
Also several points were removed from the layout, probably jumpers labeled EXC7 to EXC18, three pins each.
95682A-3
Of all the components and PCB layout only 13E NM93C46A survived to this revision, all CN2 to 4 and EXC7 to 18 were removed, as well as the battery entry points and the SRAM layout on the PCB. The plastic case cover was kept and is closed on all our boards.
95682A-4
This is virtually identical to revision 3, no differences have been spotted so far. However serial number in the pictured board is lower than on the revision 3 above. The black metal bar is just the security card holder.
