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New Game released. ChoroQ

I set this as game_53

Also note: this game needs the cabinet type set to "1P" in system assignments before it will boot.


I have no idea how to play this game, test mode works and it boots.

it seems as though the game plays itself and players place bets on the races that the game is running through on it's own.

in input test none of the buttons on JAMMA harness seemed to register, so I'm guessing this game uses one or more of the expansion headers for all of the relevant inputs.
 
Yes, I set as game_53 too.

I think it works as you said, you need to bet on the winning car and they run alone.
 
I did some probing around on the board while in input test mode trying to figure out how the inputs on this game work.

inputs on the JAMMA harness don't register any button presses

CN 21, used for the kick harness/player 4 input doesn't register any button presses

CN 32, used for player 3 input doesn't register any button presses

CN 20, another digital expansion I/O, doesn't register any button presses.

There is a "serial communication" header on the ST-V (CN18) putting a scope on this I see activity on pins 1 and 2 when I'm in input test mode, this stops as soon as I exit the input test.

So I'm guessing that this game has some kind of Serial interface board that plugs into CN18 to handle all of the inputs.

This game has up to 4 players each with 11 inputs:
Bet1
Bet2
Bet3
Bet4
Bet5
Bet6
Turbo
Payout
Service
Medal Swtich
Coin Switch

with 44 inputs total there might not have been enough normal digital inputs across the existing headers
 
twistedsymphony said:
I did some probing around on the board while in input test mode trying to figure out how the inputs on this game work.

inputs on the JAMMA harness don't register any button presses

CN 21, used for the kick harness/player 4 input doesn't register any button presses

CN 32, used for player 3 input doesn't register any button presses

CN 20, another digital expansion I/O, doesn't register any button presses.

There is a "serial communication" header on the ST-V (CN18) putting a scope on this I see activity on pins 1 and 2 when I'm in input test mode, this stops as soon as I exit the input test.

So I'm guessing that this game has some kind of Serial interface board that plugs into CN18 to handle all of the inputs.

This game has up to 4 players each with 11 inputs:
Bet1
Bet2
Bet3
Bet4
Bet5
Bet6
Turbo
Payout
Service
Medal Swtich
Coin Switch

with 44 inputs total there might not have been enough normal digital inputs across the existing headers
Click to expand...
Nice findings! Can your scope tell you what protocol is being used there? It might be some kind of pre JVS, so rs422.
 
Darksoft said:
Nice findings! Can your scope tell you what protocol is being used there? It might be some kind of pre JVS, so rs422.
Click to expand...
my scope nor my abilities to use it aren't that good I'm afraid.

What I can tell you is that the serial connector has 6 pins
pin 1 was normally pulled low with the occasional high blip
pin 2 was normally pulled high with the occasional low blip
so I'm guessing this is a TX- and TX+

pins 3 and 4 were ground

pins 5 and 6 were both pulled high (I'm guessing RX- and RX+)

that seems in-line with RS422, there's no real documentation on this connector that I could find anywhere other than the ST-V manual labeling it as "serial connection".

I don't know if he has an ST-V but if he does maybe @winteriscoming could give it a look as he's done a lot with serial protocols for card readers and FFB.
 
I do not have one, unfortunately.

Without having both sides of the communication to sniff, I would think figuring out the protocol would be pretty difficult. Reading the commands is one thing, but knowing how to reply would be near impossible to guess.
 
What would be the jumper setting using this at game 53? Also, any reason to rename the files? Thanks!
 
noonan2678 said:
What would be the jumper setting using this at game 53? Also, any reason to rename the files? Thanks!
Click to expand...
open windows calculator, click on view -> programmer

type 53 then change the radio button on the left from "Dec" to "Bin"
1= jumped 0 = not jumped
 
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