ccatalyst
Active member
Help needed with Gauntlet Dark Legacy and Sportstation multigame Conv. problem
Hello everyone, i am hoping someone can help me with this, This is going to read more like an instruction manual that a cry for help, so i appoligize in advance for the long read, but i hope that this document helps all who read it, and hopefully can help me get the final answer to my problem.
Hence we begin our tale, A few months ago i purchased a gauntlet dark legacy cabinet with a medium res 27" monitor,the cabinet is in excellent shape and the game plays well, but it gets a little tiring sometimes and i started looking for other options for this cabinet, after a few weeks of research i decided to aquire an nba showtime board set, seeing that they are both medium res games, and both use the 49 ways joysticks and the same # of buttons, i thought, hey why not put them both in the same cabinet and use a switcher between them so i can play both game as neccesary with having to go through the painful process of moving my cabinet and removing boards, etc, etc. blood , sweat and tears.
So i began my project, the first thing i did is buy the upgrade kit for the nba showtime, to convert it into a sportstation ver 3.0.This would now give me 3 games, GL, blitz 2000 gold and nba on showtime, an added plus to my project, i got this upgrade from arcade-services1 on ebay, it came as a complete kit and had the marquee to boot, I changed out the security chip, eprom and hard drive, booted it up and it worked fine, so i was now ready to continue. i opened up my Gauntlet cabinet and made sure i could fit both boardsets in their entirety, since they were both still bolted to their metal bases, it would make it easy to just slide them in
before i continue, I have this note to add to anyone attempting to do this same multi game conversion, even though both games use the same exact boards, their video cards are different, some people have posted you can get a replacement to use in the nba game for $40, good luck finding that, i looked everywhere, and i dont just mean ebay , i mean EVERYWHERE, i could not find this card nowhere, so keep that in mind if you are going to decide to proceed with a project like this, also make sure your board set comes with both the i-40 and the aux board,as well as the wiring that goes between the joysticks and the i-40, this is also a must, and will greatly simplify you running around trying to find out what goes where or finding an obscure part that doesnt exist anywhere but in some guys basement in lower botswana.
And thus my tale continues.
I ended up doing this, pardon the crappy ascii drawing, but you are now looking at the cabinet from the rear.
------------------
| |
| |
| | monitor back |
| | |
| | |
| -------------------
|
| <sportstation boardset
|
------------------ <existing gauntlet boardset.
After bolting in the sportstation boardset into the side of the cabinet , i still had plenty of room to manuver and work in the cabinet. I needed a jamma switcher, so i ordered 1 from mikes arcade, i had also ordered a jamma extension from mike, but found out pretty quickly that it would not work properly with this game. Now remember i bought the complete nba boardset, that included the i40 board, the tiny aux board and the cables going from the joysticks and buttons to the i40 board, but when i hooked it up to the jamma harness that came with the switcher, i had all sorts of left over connectors and the joysticks would not move properly, the manuals for both gl and sportstation were also no help in finding out where these molex wires went, after some more research i found out i needed a special jamma harness made specifically for these sports games that have i40 boards in them, i ordered this special jamma harness once again from arcade-services1, when it arrived, i noticed i could not plug it directly into the jamma switcher, as this new harness looks like a standard jamma harness with a bunch of molex connectors on it and ending in the plain cables ends, i needed a female end to plug this harness into the jamma switcher, so i had to end up cutting 1 of the ends off the jamma extender that came with the switcher and soldered it onto the new jamma harness that came from arcade-services1, i hooked it up and powered it on, immedietly i noticed that the video was screwed up, after some further diagnostics, i realized that i have to reverse the pins on the harness in order to get them to work properly with the switcher, so i undid all the pins except for the power connections and rewired it like this
original
---------------
top
red blue ground
green sync
bottom
changed to this
----------------------
top
green sync
red blue ground
bottom
i had to do this for the entire harness to correctly get the connections where they needed to be. I hooked up all the molex connectors from the new jamma harness into the molex connectors hanging close to the i40 board, but now i had another dilema, i needed to wire in this new jamma harness to connect with the existing joytick and buttons connectors that are already in use in the gauntlet cabinet. I first tried pluging in the joystick connector as is from the sportstation harness into joystick 1, when i powered up the game, i noticed that the joystick was working but strangely,
Instead of this
up
left right
down
it was giving me this
right
up down
left
it did this on every joystick and every harness i tried from #1 through 4, I was acting as the joysticks had been rotated 1 turn counter clockwise, so i thought, well i can rearrange the wires and it might fix it, so first i hooked up the wires according to their correct color code, both guantlet dl and sportstation use the same color codes for the joysticks, so i just spliced in the joystick wires from the sportstation loom into the existing gauntlet joystick wire loom.When i did that the joystick was acting just like i described in the above diagram. so i tried reversing the cables, on the sportstation side of the loom,
note this following diagram is for player 1 only, this following color connection chart will give you the joystick response listed above. They're connected to their matching colors on the gauntlet joystick loom, so for example white will be wired into white, white/black is wired into white black, etc.
original wire connection
sportstation gauntlet side
wht - start 1 wht - start 1
wht/black - u/d bit 0 wht/black - u/d bit 0
wht/brown - u/d bit 1 wht/brown - u/d bit 1
white/red - u/d bit 2 white/red - u/d bit 2
white/orange - u/d DIR bit white/orange - u/d DIR bit
white/yellow - L/R bit 0 white/yellow - L/R bit 0
white/green - L/R bit 1 white/green - L/R bit 1
white/blue - L/R bit 2 white/blue - L/R bit 2
white/violet - L/R DIR Bit white/violet - L/R DIR Bit
I changed it to this
sportstation gauntlet side
wht - start 1 wht - start 1
white/yellow - L/R bit 0 wht/black - u/d bit 0
white/green - L/R bit 1 wht/brown - u/d bit 1
white/blue - L/R bit 2 white/red - u/d bit 2
white/violet - L/R DIR Bit white/orange - u/d DIR bit
wht/black - u/d bit 0 white/yellow - L/R bit 0
wht/brown - u/d bit 1 white/green - L/R bit 1
white/red - u/d bit 2 white/blue - L/R bit 2
white/orange - u/d DIR bit white/violet - L/R DIR Bit
now in case you do not understand the way the above looms are coming together here is a diagram
original setup, joysticks work, but rotated counterclock wise. 90 degrees.
sportstation
white/black wire
---------------------------------\
\
\
------------> to white/black joystick
/
/
--------------------------------/
gauntlet dl
white/black wire
new setup
sportstation
white/yellow wire
---------------------------------\
\
\
------------> to white/black joystick wire
/
/
--------------------------------/
gauntlet dl
white/black wire
Now the new wiring worked fine for the left and right, but the up and down were reversed, they worked ok, but their dirrections were such, as when you push up it goes down and vice versa. I confirmed that the wires are going to right places, but i cannot seem to find out how to reverse the up and down connections, i think that if i can a way to get whatever signal is coming out of the white/violet wire-under the new setup to invert it's signal it may correct my problem, everything else is working properly, but the joysticks Up - down wont work properly, there is 1 more problem for me to correct after this which has to do the wiring of the speakers, you see mike's switcher does not switch both speakers, only 1, so i need to build a circuit to interface with his swicther to also switch the remaining speaker, but the joystick problem is the one that is really kicking my hiney. If anyone out there has any ideas, please post , i am looking forward to all replies. And hope this helps anyone out there looking to try this project also.
Many Thanks in advance
Rick.
Hello everyone, i am hoping someone can help me with this, This is going to read more like an instruction manual that a cry for help, so i appoligize in advance for the long read, but i hope that this document helps all who read it, and hopefully can help me get the final answer to my problem.
Hence we begin our tale, A few months ago i purchased a gauntlet dark legacy cabinet with a medium res 27" monitor,the cabinet is in excellent shape and the game plays well, but it gets a little tiring sometimes and i started looking for other options for this cabinet, after a few weeks of research i decided to aquire an nba showtime board set, seeing that they are both medium res games, and both use the 49 ways joysticks and the same # of buttons, i thought, hey why not put them both in the same cabinet and use a switcher between them so i can play both game as neccesary with having to go through the painful process of moving my cabinet and removing boards, etc, etc. blood , sweat and tears.
So i began my project, the first thing i did is buy the upgrade kit for the nba showtime, to convert it into a sportstation ver 3.0.This would now give me 3 games, GL, blitz 2000 gold and nba on showtime, an added plus to my project, i got this upgrade from arcade-services1 on ebay, it came as a complete kit and had the marquee to boot, I changed out the security chip, eprom and hard drive, booted it up and it worked fine, so i was now ready to continue. i opened up my Gauntlet cabinet and made sure i could fit both boardsets in their entirety, since they were both still bolted to their metal bases, it would make it easy to just slide them in
before i continue, I have this note to add to anyone attempting to do this same multi game conversion, even though both games use the same exact boards, their video cards are different, some people have posted you can get a replacement to use in the nba game for $40, good luck finding that, i looked everywhere, and i dont just mean ebay , i mean EVERYWHERE, i could not find this card nowhere, so keep that in mind if you are going to decide to proceed with a project like this, also make sure your board set comes with both the i-40 and the aux board,as well as the wiring that goes between the joysticks and the i-40, this is also a must, and will greatly simplify you running around trying to find out what goes where or finding an obscure part that doesnt exist anywhere but in some guys basement in lower botswana.
And thus my tale continues.
I ended up doing this, pardon the crappy ascii drawing, but you are now looking at the cabinet from the rear.
------------------
| |
| |
| | monitor back |
| | |
| | |
| -------------------
|
| <sportstation boardset
|
------------------ <existing gauntlet boardset.
After bolting in the sportstation boardset into the side of the cabinet , i still had plenty of room to manuver and work in the cabinet. I needed a jamma switcher, so i ordered 1 from mikes arcade, i had also ordered a jamma extension from mike, but found out pretty quickly that it would not work properly with this game. Now remember i bought the complete nba boardset, that included the i40 board, the tiny aux board and the cables going from the joysticks and buttons to the i40 board, but when i hooked it up to the jamma harness that came with the switcher, i had all sorts of left over connectors and the joysticks would not move properly, the manuals for both gl and sportstation were also no help in finding out where these molex wires went, after some more research i found out i needed a special jamma harness made specifically for these sports games that have i40 boards in them, i ordered this special jamma harness once again from arcade-services1, when it arrived, i noticed i could not plug it directly into the jamma switcher, as this new harness looks like a standard jamma harness with a bunch of molex connectors on it and ending in the plain cables ends, i needed a female end to plug this harness into the jamma switcher, so i had to end up cutting 1 of the ends off the jamma extender that came with the switcher and soldered it onto the new jamma harness that came from arcade-services1, i hooked it up and powered it on, immedietly i noticed that the video was screwed up, after some further diagnostics, i realized that i have to reverse the pins on the harness in order to get them to work properly with the switcher, so i undid all the pins except for the power connections and rewired it like this
original
---------------
top
red blue ground
green sync
bottom
changed to this
----------------------
top
green sync
red blue ground
bottom
i had to do this for the entire harness to correctly get the connections where they needed to be. I hooked up all the molex connectors from the new jamma harness into the molex connectors hanging close to the i40 board, but now i had another dilema, i needed to wire in this new jamma harness to connect with the existing joytick and buttons connectors that are already in use in the gauntlet cabinet. I first tried pluging in the joystick connector as is from the sportstation harness into joystick 1, when i powered up the game, i noticed that the joystick was working but strangely,
Instead of this
up
left right
down
it was giving me this
right
up down
left
it did this on every joystick and every harness i tried from #1 through 4, I was acting as the joysticks had been rotated 1 turn counter clockwise, so i thought, well i can rearrange the wires and it might fix it, so first i hooked up the wires according to their correct color code, both guantlet dl and sportstation use the same color codes for the joysticks, so i just spliced in the joystick wires from the sportstation loom into the existing gauntlet joystick wire loom.When i did that the joystick was acting just like i described in the above diagram. so i tried reversing the cables, on the sportstation side of the loom,
note this following diagram is for player 1 only, this following color connection chart will give you the joystick response listed above. They're connected to their matching colors on the gauntlet joystick loom, so for example white will be wired into white, white/black is wired into white black, etc.
original wire connection
sportstation gauntlet side
wht - start 1 wht - start 1
wht/black - u/d bit 0 wht/black - u/d bit 0
wht/brown - u/d bit 1 wht/brown - u/d bit 1
white/red - u/d bit 2 white/red - u/d bit 2
white/orange - u/d DIR bit white/orange - u/d DIR bit
white/yellow - L/R bit 0 white/yellow - L/R bit 0
white/green - L/R bit 1 white/green - L/R bit 1
white/blue - L/R bit 2 white/blue - L/R bit 2
white/violet - L/R DIR Bit white/violet - L/R DIR Bit
I changed it to this
sportstation gauntlet side
wht - start 1 wht - start 1
white/yellow - L/R bit 0 wht/black - u/d bit 0
white/green - L/R bit 1 wht/brown - u/d bit 1
white/blue - L/R bit 2 white/red - u/d bit 2
white/violet - L/R DIR Bit white/orange - u/d DIR bit
wht/black - u/d bit 0 white/yellow - L/R bit 0
wht/brown - u/d bit 1 white/green - L/R bit 1
white/red - u/d bit 2 white/blue - L/R bit 2
white/orange - u/d DIR bit white/violet - L/R DIR Bit
now in case you do not understand the way the above looms are coming together here is a diagram
original setup, joysticks work, but rotated counterclock wise. 90 degrees.
sportstation
white/black wire
---------------------------------\
\
\
------------> to white/black joystick
/
/
--------------------------------/
gauntlet dl
white/black wire
new setup
sportstation
white/yellow wire
---------------------------------\
\
\
------------> to white/black joystick wire
/
/
--------------------------------/
gauntlet dl
white/black wire
Now the new wiring worked fine for the left and right, but the up and down were reversed, they worked ok, but their dirrections were such, as when you push up it goes down and vice versa. I confirmed that the wires are going to right places, but i cannot seem to find out how to reverse the up and down connections, i think that if i can a way to get whatever signal is coming out of the white/violet wire-under the new setup to invert it's signal it may correct my problem, everything else is working properly, but the joysticks Up - down wont work properly, there is 1 more problem for me to correct after this which has to do the wiring of the speakers, you see mike's switcher does not switch both speakers, only 1, so i need to build a circuit to interface with his swicther to also switch the remaining speaker, but the joystick problem is the one that is really kicking my hiney. If anyone out there has any ideas, please post , i am looking forward to all replies. And hope this helps anyone out there looking to try this project also.
Many Thanks in advance
Rick.
Last edited:
