JKOC with Parallel Port Adapter

Ceasama · 04-11-2008, 10:27 PM

Hey guys,
I've already posted this on outphase, but I'm trying to get as much information as possible so if you've got any idea on this please let me know.

I'm trying to get a JKOC running with Endless Music (Or more importantly, just working with the computer) through a parallel port adapter, and I'm having a few problems.
I remember reading somewhere that IIDX controllers required more power than a regular controller, and the parallel port adapter I've built currently hasn't got a separate external power input (didn't need it at the time when I built it, since I was only using it for controllers).
I know I could easily just snag a USB converter off of play-asia, but the parallel port converter has no lag whatsoever (or damn close to it) and I can't be bothered waiting for something to ship when I can just build it myself...

My questions, if anyone knows the answers, are these:

1) Does the IIDX controller really require more power than a standard, non-dualshock controller? (Alternatively, has anyone gotten a JKOC running on a parallel port WITHOUT the external power?)

2) If so, does it draw from the dualshock power pin?

3) Finally, how much power does it need to this pin? I want to solder the power pin to a USB tab and get power from a spare USB port, but will it be too grunty? I don't really want to break this thing since I got it in Japan and buying another one = exorbitant shipping (I live in NZ).

If you read all of that at least, then thanks for the time. Any help would be appreciated.

Solefald · 04-11-2008, 10:33 PM

It does require more power, but I'm not sure how much. Probably not much more than normal, because it takes 15-20 minutes before my IIDX controller starts crapping out and not responding through my parallel adapter.

My DJ Dao FP7 worked fine with it, but it also uses a USB port to draw power (at least for the lights) so I'm pretty sure the actual PS2 port used the standard amount of power.

Ceasama · 04-12-2008, 12:30 AM

Just out of curiosity, does the DJ Dao FP7 have any kind of transformer near the USB plug, or is it just a straight plug that feeds into the adapter?

USB gives something like 5v 100mA, right? The back of the JKOC says 3.45V 16mA: an extra 11mA more than my Red Octane Ignition pad (for DDR) which works fine with the adapter alone.
I wonder if there's any way to draw just a little more power from the parallel port, or if feeding 5v 100mA to the controller is going to be dangerous...

Momo · 04-17-2008, 01:53 AM

I have my parallel adapter ghetto rigged with a 5v wire from my psu. Put a female adapter on the actual psu wire and soldered a wire with a male connector on the diodes where the red psx wire connects. Works perfectly fine with my jkoc and hasn't messed that, or any of my controllers up.