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Any high quality Namco System 246/256/2X6 main pcb photos?

Hydreigon

Hydreigon

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Would be extremely helpful for documentation purposes. System 246C and 256 is "required" as those aren't fully documented but the others would be nice. I forgot the most important component that stands out from 2X6 based hardware is the use of additional microcontrollers/MCUs. We will refer to these additional MCU(s) as the "subcpu". It's possible the main PS2 CPU needs to communicate with the subcpu for the system to boot and uses its serial port for JVS (much akin to Namco System 23) . This is what I could figure out so far for all System 246 revisions:

246 (Driving)
  • Main board: PS2 Mainboard COH-H30000/H31000
  • Sub board: System 246 MOTHER PCB
  • Subcpu: Toshiba TMP95C061 TLCS-900-series 16-bit MCU
  • Notes: All boards, main and I/O, are located inside the metal cage. The subcpu uses its second serial port to communicate with the STR feedback pcb (not JVS). Sub board can also use additional ram pcbs.
246A
  • Main board: PS2 Mainboard COH-H30000/H31000
  • Sub board: System 246 MOTHER(A) PCB
  • Subcpu: Toshiba TMP95C061 TLCS-900 16-bit MCU
  • Notes: Smaller version of 246 (Driving). Sub board is identical to 246 (Driving) but "replaces" the subcpu's second serial port connector with JAMMA I/O connector.
246B
  • Main board: PS2 Mainboard COH-H30000/H31000
  • Sub board: System 246 PMOTHER PCB
  • Subcpu #1: Toshiba TMP95C061 TLCS-900 16-bit MCU
  • Subcpu #2: Toshiba TMP87PH47U TLCS-870 8-bit MCU with 16k internal EPROM
  • Notes: Designed as a 'universal' system opting for compatibility between a lot of games. Additional ram has been added to the sub board to remove the need for additional ram pcbs. Adds an option for ethernet based networking, an Admtek ADM8513, possibly connected to subcpu #2.
246C
  • Main board: System 246 Main PCB
  • Sub board: None
  • Subcpu: Not known (needs picture verification)
  • Notes: Basically a 246B but all major components of the main and sub boards are combined into one pcb. Because all games that normally run on 246B are also compatible with 246C, it's likely 246C uses the same two subcpus as 246B.
256
  • Main board: System 256 Main/Main(B) PCB
  • Sub board: None
  • Subcpu: Not known (needs picture verification)
  • Notes: Uses the integrated EE+GS CXD9833GB chip used in later PS2 models (and earlier PS3 models). Adds a custom expansion bus for two boards; EX CARD and EX SOUND. Removes ATAPI commands and the iLink port. Has a jumper to set the mode, 256/246+, to run 246 games that do not require ATAPI commands. It's possible the subcpu(s) used on 256 is/are different due to the major changes from 246C.
S256
  • Main board: Super System 256 Main PCB
  • Sub board: None
  • Notes: Only runs Time Crisis 4. Main board layout is identical to S256 but with a higher clocked EE+GS, (maybe) more ram, different bios, and mode jumper removed.
That will be it for me as most of this info will be reworked for a different thread involving 2X6 documentation.
 
Not yet. Hopefully may get some pics of a 256 pcb (from a Tekken 5 because I plan to do preventative maintenance on this pcb by cleaning and replacing the fans).
 
How's this for super system256? (time crisis 4)

It's my way of asking help for this :D :


You mentionned
Hydreigon said:
in a nutshell, you'll have to check for continuity between USB pins 2 and 3 and the ADM485 or if you really want to, bridge ADM485's pin 6 to USB pin 2 and pin 7 to USB pin 3 with thin wires.
Click to expand...
In effect, you are asking to bypass that little black component before the pins? (anybody know what it is?) cause I can ping to that but not through it ?
is that correct?
1738696549684.jpeg
 
Last edited:
Hydreigon said:
246 (Driving)
  • Main board: PS2 Mainboard COH-H30000/H31000
  • Sub board: System 246 MOTHER PCB
  • Subcpu: Toshiba TMP95C061 TLCS-900-series 16-bit MCU
  • Notes: All boards, main and I/O, are located inside the metal cage. The subcpu uses its second serial port to communicate with the STR feedback pcb (not JVS). Sub board can also use additional ram pcbs.
246A
  • Main board: PS2 Mainboard COH-H30000/H31000
  • Sub board: System 246 MOTHER(A) PCB
  • Subcpu: Toshiba TMP95C061 TLCS-900 16-bit MCU
  • Notes: Smaller version of 246 (Driving). Sub board is identical to 246 (Driving) but "replaces" the subcpu's second serial port connector with JAMMA I/O connector.
246B
  • Main board: PS2 Mainboard COH-H30000/H31000
  • Sub board: System 246 PMOTHER PCB
  • Subcpu #1: Toshiba TMP95C061 TLCS-900 16-bit MCU
  • Subcpu #2: Toshiba TMP87PH47U TLCS-870 8-bit MCU with 16k internal EPROM
  • Notes: Designed as a 'universal' system opting for compatibility between a lot of games. Additional ram has been added to the sub board to remove the need for additional ram pcbs. Adds an option for ethernet based networking, an Admtek ADM8513, possibly connected to subcpu #2.
Click to expand...
IIRC:
Driving uses COH-H30000 (gh-04)
Rack A uses COH-H31000 (gh-06)
Rack B uses COH-H31100 (gh-06, no daughterboard)
Hydreigon said:
  • Main board: Super System 256 Main PCB
  • Sub board: None
  • Notes: Only runs Time Crisis 4. Main board layout is identical to S256 but with a higher clocked EE+GS, (maybe) more ram, different bios, and mode jumper removed.
Click to expand...
All System256 are overclocked, their RAMBUS is 500mhz while the rest of PS2 hardware run it at 400 (along with the system148, these two are the only overclocked EEs around IIRC), they all have 64mb of ram And the EE+GS chip because they're recycled from the PSX DESR after it's comercial disaster (also the memory card lids), that would also explain why iLink was removed, maybe it's also using IOP chips from that time (50xxx series), where iLink support was crippled

In addition to pictures, Dumps made with arcade PS2IDENT will be SUPER useful. already asked for them on another thread, but got ignored https://github.com/AKuHAK/PS2Ident/releases/download/latest/PS2Ident-system2x6_arcade.7z
 
pictures of 246 Driving
( i found some issues taking these so might try and fix it!)
ps: The undumped dongle has been sent to the Guru

El_isra said:
PS2IDENT will be SUPER useful. already asked for them on another thread, but got ignored https://github.com/AKuHAK/PS2Ident/releases/download/latest/PS2Ident-system2x6_arcade.7z
Click to expand...

### How to use this software:
Extract the whole archive (do not delete any files or folders) onto a location on a supported device.
The only supported devices are the Memory Card and USB mass storage device.

Can we do this somehow on a 256 now ? would love to do it.
 
Ugh. I remember making this post a few years ago. Thanks for all the info but good god my initial post is super cringe in today's standards.
 
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