Konami mapper circuit diagram

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By luppie

Paladin (864)

Аватар пользователя luppie

21-08-2008, 11:01

i make schematic for scc only but i don't know added picture with my post

Just mail me the picture and i'll host it and will post it in this topic.

Mail-address : www.luppie.eu/uploaded/msxmail.jpg

By Jipe

Paragon (1517)

Аватар пользователя Jipe

21-08-2008, 11:35

it's ok i send you 3 mappers konami scc and ascii 8k

By luppie

Paladin (864)

Аватар пользователя luppie

21-08-2008, 11:45

These are the mappers from Jipe:

ASCII:
www.luppie.eu/uploaded/ascii.bmp

Konami:
www.luppie.eu/uploaded/konami.bmp

SCC:
www.luppie.eu/uploaded/scc.bmp

By Gregory

Master (178)

Аватар пользователя Gregory

18-08-2021, 17:56

Erikie wrote:

I made the konami mapper diagram posted on HansO website but it does not work.
This is the schematic: http://msx.retro8bits.com/msxdocs/MapperMSXKonami.pdf
I am using a modified ISA development board and I checked all wires twice with a multimeter.
There are no short circuits and no loose connections.
When I have the logic ICs in the machine does not start. Without ICs and with the board inserted the machine boots.
And when I have all the logic ICs except the 72ls02 in the machine also boots.
The 74ls02 is OK as I have tested it with my programmer. No errors on that one.
Is this mapper circuit 100% OK? or is there something I am missing?
I hope someone can help as I want to use this circuit as the basis for other projects.

Thanks a lot,

Erik

Can someone give the current link?
In the past I also build one of this mappers and my problem was that it needed a few pull-up resistors (jipe helped out on this). Those pull-up resistors however are not present in the schematic.

By Bastion Rebel

Expert (68)

Аватар пользователя Bastion Rebel

18-08-2021, 18:55

hello
see this My PCB for 1Mb ROM with mapper Konami (k4) or ASCII or SCC without scc chip (k5) in my proto board
select mapper via jumper...

By Pencioner

Scribe (1480)

Аватар пользователя Pencioner

18-08-2021, 19:45

this is a known issue with moder browsers don't show non-secure HTTP content on secured HTTPS sites. I changed settings in my browser meanwhile, so i can see pics, but both Chrome and Mozilla promise to remove this option in future. So it seems like everyone should move to HTTPS soon

By Gregory

Master (178)

Аватар пользователя Gregory

19-08-2021, 00:29

It looks complicated.

By Bastion Rebel

Expert (68)

Аватар пользователя Bastion Rebel

19-08-2021, 11:33

no, it's not complicated, you just have to choose the right one to map with the jumpers and put the right rom, I'm also working on the 4Mb version

By Victor

Champion (499)

Аватар пользователя Victor

19-08-2021, 12:36

Bastion Rebel wrote:

no, it's not complicated, you just have to choose the right one to map with the jumpers and put the right rom, I'm also working on the 4Mb version

What program do you have to flash the ROMs?

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