Some Polyphoon GALs/Eprom + 0661 Scsi Card Roms

[hyperneogeo]

Oddly enough all the GALS on the Poly were unlocked (all 8 of em whew) and it had a huge 27c4002 eprom on it. The 0661 Scsi card is made by System Sacom and uses 27c256 eproms.

0661 Card:



Eproms: https://www.dropbox.com/s/xx2p47jmje057kd/System%20Sacom%200661.zip

Polyphoon (says it on it lol) GALS and Eprom: https://www.dropbox.com/s/181vpgiwfrby0dw/PolyPhoon.zip

Hopefully this helps someone!

[AnnaWu]

Thanks for your nice contribution, hyperneogeo. : )

[caius]

Hi, could you give me permission to upload your PAL dumps to this database?Credits, obviously, will go to you.Thanks.


http://www.jammarcade.net/pal-dumps/

[H68k]

What is the Polyphonic board comprised of anyway? An FPGA or CPLD with off-the-shelf components, Like the Nereid. Or entirely built into one FPGA?

[hyperneogeo]

Hi, could you give me permission to upload your PAL dumps to this database?Credits, obviously, will go to you.Thanks.


http://www.jammarcade.net/pal-dumps/

Yeah go ahead! (This is actually CoolMod haha).

[hyperneogeo]

What is the Polyphonic board comprised of anyway? An FPGA or CPLD with off-the-shelf components, Like the Nereid. Or entirely built into one FPGA?

Nah nothing like that. It consists of a processor (not the fpu, but a separate processor TMP68303), DRAM, CMOS ram, a ton of gals, eprom, and 74LS logic. That's basically it.

[eidis]

 Hi Hyperneogeo !

Thank you for the quality Wiki material. The ROM dumps are great ! Could you please make hires pictures of the Polyphon board from both sides ? Preferably in a well illuminated area and without the flash.

POLYPHON - FPU, MIDI, PCM, 8MB memory board
http://gamesx.com/wiki/doku.php?id=x68000:polyphon_-_fpu_midi_pcm_8mb_memory_board

0661 X68000 SCSI BOARD
http://gamesx.com/wiki/doku.php?id=x68000:0661_-_scsi_board

Keep the scene alive !
Eidis

[hyperneogeo]

Hi Hyperneogeo !

Thank you for the quality Wiki material. The ROM dumps are great ! Could you please make hires pictures of the Polyphon board from both sides ? Preferably in a well illuminated area and without the flash.

POLYPHON - FPU, MIDI, PCM, 8MB memory board
http://gamesx.com/wiki/doku.php?id=x68000:polyphon_-_fpu_midi_pcm_8mb_memory_board

0661 X68000 SCSI BOARD
http://gamesx.com/wiki/doku.php?id=x68000:0661_-_scsi_board

Keep the scene alive !
Eidis

Sure no problem!

[hyperneogeo]

https://www.dropbox.com/s/pmp9aw4b6cnwk1p/20150108_181558.jpg?dl=0
https://www.dropbox.com/s/exm7ujimssdyznt/20150108_182155.jpg?dl=0
https://www.dropbox.com/s/2xsn5ssqiob3u7z/20150108_181617.jpg?dl=0
https://www.dropbox.com/s/i3yim2n4figcv8o/20150108_181639.jpg?dl=0

The last picture is a comparison between the Poly and a normal card...needless to say it hangs out of the machine lol

[eidis]

 Hi Hyperneogeo !

Thank you for your work and quick reply. This thing looks massive. The main reason why I asked for hires pics was because we have ROM dumps and someone in the near or far future could try to clone this board. But for that to happen we absolutely need very clear and not blurry pictures of the board from both sides, so that anyone who might want to give it a go could follow the traces and read the chip markings. Terribly sorry for the inconvenience but this is very important. BlueBMW once mentioned that flatbed scanner is ideal for such tasks. Proof of concept can be seen here:

CZ-5ME4 - Memory expansion board
http://gamesx.com/wiki/doku.php?id=x68000:cz-5be4_-_memory_expansion_board

Keep the scene alive !
Eidis

[AnnaWu]

I think this pic (older Project Polyphoon board? ) is nice too.
http://www.dengeki.ne.jp/tohoho/2005/20051016_12b.jpg

@hyperneogeo

I can not read it, can you tell me the overprint please?

[hyperneogeo]

Says 68303 Sub MPU board system

[AnnaWu]

Says 68303 Sub MPU board system

Thanks, so it is the same board (my posted link, not fully assembled)

[eidis]

 Hi AnnaWu !

Thank you for the Hires pic. The article has been updated !

POLYPHON - FPU, MIDI, PCM, 8MB memory board
http://gamesx.com/wiki/doku.php?id=x68000:polyphon_-_fpu_midi_pcm_8mb_memory_board

Keep the scene alive !
Eidis