Bought cheap PSX to Jamma PCB, help me with shitty controls!

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Jockel
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Bought cheap PSX to Jamma PCB, help me with shitty controls!

Post by Jockel »

Image
So I bought this nice piece of hot garbage and generally, it works.
Sound is A-OK, video signal is acceptable enough, all is gravy.
Except the controls. They're unresponsive as fuck. It seems to keep inputs for too long and eats up directional inputs occasionally.
So you can't really tap-dodge and if you wiggle the joystick around too quickly for this piece of shit to comprehend, you could even hold for example down while the plane would go right.

Any ideas what could cause this problem and if there's a way to fix it?
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antron
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by antron »

Poor controls ground (if they are separate on your board and cab)?
Last edited by antron on Tue Jul 15, 2014 6:13 am, edited 1 time in total.
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muckyfingers
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by muckyfingers »

pad hack some psx controllers and wire them to the jamma edge, it sounds like the on board psx controller signal decoder is crap.
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Jockel
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by Jockel »

muckyfingers wrote:pad hack some psx controllers and wire them to the jamma edge, it sounds like the on board psx controller signal decoder is crap.
Sorry, I'm too retarded with a soldering iron to do that. :|

I'll check the ground situation.
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emphatic
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by emphatic »

Use this to interface your controls, as all commercial PSX->JAMMA I've tried sucks ass (haven't tried viletim's PSX interface): http://m.ebay.com/itm/171018138307?nav=SEARCH

They're cheap, and easy to hook up to your control panel.
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RegalSin wrote:Street Fighters. We need to aviod them when we activate time accellerator.
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Jockel
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by Jockel »

emphatic wrote:Use this to interface your controls, as all commercial PSX->JAMMA I've tried sucks ass (haven't tried viletim's PSX interface): http://m.ebay.com/itm/171018138307?nav=SEARCH

They're cheap, and easy to hook up to your control panel.
Awesome tip, cutie pie! :*

I just ordered it. Could I somehow hook this up to viletims Scart adapter?
Because I'd love to be able to play my regular PCBs without taking the time to reconnect everything each time.
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antron
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by antron »

V2 uses a 40 pin ribbon connector, and he sells a screw terminal board for that. You could also use any pc ribbon cable and just twist them to what you just bought.

V1 has the screw terminals built in (but I can't find the pinouts for them)
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by emphatic »

Jockel wrote:Awesome tip, cutie pie! :*
*brofists screen*
Jockel wrote:Could I somehow hook this up to viletims Scart adapter?
Yes, here's an old picture I took when I first got my viletim adapter. There are two control adapters on mine, the one with a female JAMMA adapter, and sandwiched between that and the main unit is a screw terminal one (with a PS360 PCB hooked up to it in the picture):

Image

(In the picture, the beautiful rainbow coloured ribbon connector is in screw terminal mode)

The zero delay PCB should be common ground, it comes with a small two wire harness for each button (one is ground) only for convenience I think, so should be a breeze to install.
Jockel wrote:Because I'd love to be able to play my regular PCBs without taking the time to reconnect everything each time.
The connectors on the zero delay harness could also be hooked up to a AMP UP connector that you plug your control panel harness into instead of it going into the cabinet's JAMMA wiring. I have this setup for my EGRET II now, and it's quite practical. I don't know what connector to get though, but if you ask FrancoB @ arcadeotaku, he should be able to sort you out.
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RegalSin wrote:Street Fighters. We need to aviod them when we activate time accellerator.
Asure
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by Asure »

Jockel wrote:Image
So I bought this nice piece of hot garbage and generally, it works.
Sound is A-OK, video signal is acceptable enough, all is gravy.
Except the controls. They're unresponsive as fuck. It seems to keep inputs for too long and eats up directional inputs occasionally.
So you can't really tap-dodge and if you wiggle the joystick around too quickly for this piece of shit to comprehend, you could even hold for example down while the plane would go right.

Any ideas what could cause this problem and if there's a way to fix it?
On the right side of you picture, it shows two inputs that are normally ground on the Jamma edge.
If you plug this in as-is, you are 'pushing' at least 4 buttons to ground _all the time_.

The rightmost two pins are marked L2 and L1 on the picture. There's two pins on the bottom side as wel. I guess P2L2 and P2L1?
You will need to remove the ground wire from the right side of your Jamma connector, or cut the two pins (and bottom ones) on your adapter pcb.

My guess is that this probably will fix the unresponsive controls.
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emphatic
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by emphatic »

Asure wrote:My guess is that this probably will fix the unresponsive controls.
^^Probably the best answer you'll get to this thread I think, but if you get the zero delay hooked up to viletim or cabinet, Jockel, you could get rid of the cheap PSX to JAMMA.
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RegalSin wrote:Street Fighters. We need to aviod them when we activate time accellerator.
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Jockel
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by Jockel »

Asure wrote: On the right side of you picture, it shows two inputs that are normally ground on the Jamma edge.
If you plug this in as-is, you are 'pushing' at least 4 buttons to ground _all the time_.

The rightmost two pins are marked L2 and L1 on the picture. There's two pins on the bottom side as wel. I guess P2L2 and P2L1?
You will need to remove the ground wire from the right side of your Jamma connector, or cut the two pins (and bottom ones) on your adapter pcb.

My guess is that this probably will fix the unresponsive controls.
Tried to cut the traces of these pins and even tape off the corresponding connectors, didn't improve the controls.
Thanks for trying to help, though!

Emph, about that adapter: it comes with these quick connects for the jamma controls, where each button has its own (common?) ground wire.
So for connecting this to viletims adapter through it's terminal, I'd have to cut off the quick connect ends and put all the ground wires to one gnd terminal?

Edit: and I have the V1 viletim board. Don't worry about the pinout, it's all really well labeled.
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emphatic
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Re: Bought cheap PSX to Jamma PCB, help me with shitty contr

Post by emphatic »

Jockel wrote:put all the ground wires to one gnd terminal?
I imagine only one ground should work, but I have no way of verifying this. Please let us know if it works.
Image | My games - http://www.emphatic.se
RegalSin wrote:Street Fighters. We need to aviod them when we activate time accellerator.
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