Modifying a 6-in-1 switcher for rotary switch control?

elekTRONarcade

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Modifying a 6-in-1 switcher for rotary switch control?

I'm trying to figure out how to modify a 6-in-1 JAMMA switcher (HERE) to use a rotary 6 position switch instead of the wireless remote. Has anyone figured out how to do something similar? I've contacted Magog and zenomorp, and unfortunately neither knows how.
 
I'm trying to figure out how to modify a 6-in-1 JAMMA switcher (HERE) to use a rotary 6 position switch instead of the wireless remote. Has anyone figured out how to do something similar? I've contacted Magog and zenomorp, and unfortunately neither knows how.

Have you bought the 6 n 1 already? If so you might be able to look at the part of the board that receives the input from the remote control and simulate the output of that chip with a rotary switch.
 
Have you bought the 6 n 1 already? If so you might be able to look at the part of the board that receives the input from the remote control and simulate the output of that chip with a rotary switch.

Yep, I have one already. I've been trying to follow the path of operation from the attached wireless board to the main board, but so far unsuccessfully. There does seem to be holes in the pcb for a serial interface between the wireless board and a large socketed IC on the main board, with the holes labeled as GND (ground), RX (receive), TX (transmit), +5v, and RST (reset). Not sure how I can take advantage of it though.
 
Is there an empty spot on the board where the max232 chip and the caps go to on the board?

If the ic chips still have their numbers on them. Sometimes they do sand off the numbers off th ic chips to prevent others from duplicating it. Maybe we can get some data on the chips that they use and tap into it.
 
Yep, all the numbers are still there. I took some pics last night...I'll upload them after work along with closeups of the board and traces, see if anyone can figure out an improvised schematic
 
Here are some pics of the board(s) and chips. I have both a 6-in-1 and a 2-in-1, both from arcademvs, so their general operation is the same.


Here is the 6-in-1's serial port. Notice the Tx, Rx and Reset lines, and the 6 lines coming from the sub board (corresponding to the 6 different JAMMA ports). Here would be the place to start looking:

6913230385_da6e14cccc_z.jpg


Solder side of the above pic. Notice the single line coming from pin 9

6913229639_cea29e2a01_z.jpg


Top down pic of the main chip that handles the wireless switching (I think)

6913229397_621ff36bf9_z.jpg


Wireless processing board with SC2272-L6 wireless decoder

6913228961_ce50f89a54_z.jpg



More pics to come...
 
You are thinking about this way too hard. You are thinking about it from the frontend and the answer lies in the backend.

How are games switched? The relays are turned on for the game that is on and off for the games that are off.

How are the relays turned on and off? Usually, through a darlington transistor and I believe one pic shows a ULN2003A. Not sure if there is more then 1 as your pics are focused on the wireless part.

What drives the darlington(s)? Probably the CPU and look it is socketed. I wonder what would happen if you removed the CPU and drove the darlington(s) manually with a switch.
 
I think I follow what you're saying. I pulled the datasheet on the Darlington array, and my guess is, legs 1-6 are more than likely the inputs (with 8 being the ground), correct? So I'd need to solder each switch position to one of the first six legs of the Darlington, then another switch leg to the input voltage line feeding the array?
 
The SC2272-L6 has a six data output. I would use a logic probe and would check out pins number 13, 12, 11, 10, 8 and 7. d0,d1,d2,d3,d4,d5. Since typically these products are design to be cheap. I would think Each pin would only be active at a time.
 
I just wanted to say, I hate how these switchers don't select a game upon powerup. it's about the only reason I've never used my switcher, because my MK cab isn't sitting in my basement or garage... it's in my family's arcade, and I highly doubt anyone grasps that you have to select a game with a remote control besides me. lol

I'm assuming this rotary switch mod will do away with this little issue yes?
 
I just wanted to say, I hate how these switchers don't select a game upon powerup. it's about the only reason I've never used my switcher, because my MK cab isn't sitting in my basement or garage... it's in my family's arcade, and I highly doubt anyone grasps that you have to select a game with a remote control besides me. lol

I'm assuming this rotary switch mod will do away with this little issue yes?

That's the hope (if it works). You;ll basically start with the switch on whatever game you want to start with, and it should (in theory) boot the game immediately.
 
right. I'm curious to see what you come up with. maybe then my Multi Kombat will see life lol
 
Can you just hack the remote

IE
1. find an equivalent supply voltage (Get rid of battery)
2. Run 7 wires from the remote switches (I assume there will be 1 x common and 6 inputs
3. Connect common to centre of the switch
4. Connect the 6 wires to the 6 "throws"
5. Mount the hacked remote somewhere
6. Have 1 x normally open momentary switch in series (with common) if "being pressed all the time" is an issue
 
Really? What a terribly designed product...

yeah, it's chinese crap. what's also only mildly infuriating is that you have to hack it for -5V. I guess Neo-Geo's can get messed up if you run them with -5V, so they dummied that finger on the JAMMA edge.

it's particularly ridiculous that it doesn't just select slot #1 on power-up though. I'm not an electronics wizard, I don't know how relays work, but you would think the controller would at least have the capability to select something initially.
 
Can you just hack the remote

IE
1. find an equivalent supply voltage (Get rid of battery)
2. Run 7 wires from the remote switches (I assume there will be 1 x common and 6 inputs
3. Connect common to centre of the switch
4. Connect the 6 wires to the 6 "throws"
5. Mount the hacked remote somewhere
6. Have 1 x normally open momentary switch in series (with common) if "being pressed all the time" is an issue

To be honest, that's overcomplicating it and adding too many possible points of failure. If the remote burns up for some reason, then you're screwed. The main switcher board itself is a better candidate and reduces the chain of incident should something fail.

I'm still waiting on a reply from 2600 via PM or here, since he seems to know much more about how to accomplish this than I. I have a general idea of how to accomplish it, but my electronics knowledge is rustier than the Tin Man after a flood.
 
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Can you bypass the remote?

I've asked about this before on the 2-1 jamma switches that normally have a remote. Personally, I would rather have a separate button hard wired in for switching between games.

Is there a way the bypass the remote?

-GackAttack


If the remote burns up for some reason, then you're screwed. The main switcher board itself is a better candidate and reduces the chain of incident should something fail.
 
I've asked about this before on the 2-1 jamma switches that normally have a remote. Personally, I would rather have a separate button hard wired in for switching between games.

Is there a way the bypass the remote?

-GackAttack

Thats what we're trying to figure out. I have both the 6-in-1 and 2-in-1 and want to mod both, so we're investigating now
 
Sorry, I misread the original post. I was thinking 'Rotary Games' like Ikari Warriors....oops!

A rotary switch would be cool, too - but would a single button work possibly?

This is the place I got my 2-1 from a couple years ago, still have yet to finish :( . They are always sold out of the button version (product A-21). I have the A-20 version and have yet to purchase the 6-1 A-23 for my multi-rotary cabinet project.....

It looks to me like they just did some soldering to the remote receiver and wired directly to a remote-

A-21 with button:
attachment.php


A-20 with remote:
attachment.php


A-23 with remote:
attachment.php



http://www.arcademvs.com/ARCADE_ACESSERIOR.htm

-GackAttack


Thats what we're trying to figure out. I have both the 6-in-1 and 2-in-1 and want to mod both, so we're investigating now
 

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