DARKSOFT CPS1 Multi - Support thread

[ekorz]

I would like to run roms like this but I m not sure if possible

View: https://youtu.be/nWMH8pD3y84?si=DfFPhhE3C1F_TXbO

do you know the mame or hbmame rom filename?

 

[1P-Javi]

do you know the mame or hbmame rom filename?

They are usually named as knightsh.zip (with "h" at the end)

 

[Darksoft]

I can't see that one in MAME.

https://github.com/mamedev/mame/blob/master/src/mame/mame.lst

 

[1P-Javi]

No problem, it's a minor issue

 

[ekorz]

I can't see that one in MAME.

https://github.com/mamedev/mame/blob/master/src/mame/mame.lst

it's in hbmame and knights is the parent, so it's cps1 hardware and just new program code (22 and 23 roms). I forget how to assemble a rom for the multi but I could build the file. at that point he could just add a new folder for it, right? been a while since I set up my cps1 so I sort of forget.

 

[Darksoft]

Yes, if the game runs on CPS1 Hardware, you can just take all the roms from the parent romset and replace only the ones corresponding to program ROM.

 

[1P-Javi]

Hi again.
This is a question related with Street Fighter II v1.2 Mix.
I would like to know if anyone have found graphical glitches in the backgrounds of the stages.

 

[1P-Javi]

Hi again.
This is a question related with Street Fighter II v1.2 Mix.
I would like to know if anyone have found graphical glitches in the backgrounds of the stages.

I have found the solution, it works now properly. If anyone wants to know the details, please send me MP.

 

[djsheep]

I have found the solution, it works now properly. If anyone wants to know the details, please send me MP.

Post the solution up here for everyone to know.

 

[1P-Javi]

Post the solution up here for everyone to know.

Ok: if Dip Switch B4 is ON, then the game activate a "complete mode", which improve some features such as a kind of 3D backgrounds. It seems that this mode is not compatible with the Multi. Only you have to do is put SW B4 OFF, then "normal" backgrounds are loaded and everything works fine.

 

[ramosribeiro2000]

I replaced the FPGA board today with the original QSound. How can I make sure it will work correctly? How do I do all the tests?

 

[djsheep]

Play the QSound games. You should get sound. Without a working chip in that area you will get nothing. Check the output of the RCA ports, etc.

 

[ramosribeiro2000]

Play the QSound games. You should get sound. Without a working chip in that area you will get nothing. Check the output of the RCA ports, etc.

Do non-qsound games play sound even without this qsound card or fpga?

 

[Mitsurugi-w]

Yes

 

[ramosribeiro2000]

I prepared this c board for my kit. Is this correct?

 

[djsheep]

DARKSOFT Post in thread 'What Donor Board to use for the CPS1 Multi'

Nov 6, 2021

Is it more than just removing that wire and cleaning up the solder bridge on the chip?

Yes But not much.

The Old C-Board De-Suicide Method:
CPS-B-21 Pins 45 and 46 are normally connected to ground. The old "de-suicide" method was to disconnect these pins from ground (on some chips this was done with a trace cut, on others they lifted pins where there were traces under the chip). After disconnecting from ground these pins were then tied to +5V.

Undoing the modification:
To reverse the mod you simply need to disconnect these pins from +5V and then re-connect them to...

• twistedsymphony

• 

 

[Darksoft]

I prepared this c board for my kit. Is this correct?

No, check that thread that @djsheep posted. Yours has been modified. See pins 44-47.

 

[Mitsurugi-w]

Yeah you need to make that blob smaller. I see the one pin is still connected to ground. The other two pins need to connect to ground again as well so the blob method can work but you have a fourth pin in the blob that shouldn't be. The right-most pin should be free from blob.

 

[ramosribeiro2000]

modification made according to the topic sent by the friend @djsheep

 

[ramosribeiro2000]

I had bought the multi in 2023 and only now is 2025 a friend of mine brought it to me from the USA to Brazil. I assembled the kit according to the manual. I already had the kit but sold it and had bought this other one. It is presenting the following symptoms as shown in the images