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Main => Main Forum => Topic started by: Paladin on December 03, 2010, 02:16:24 pm

Title: J-Pac not passing controls - solved
Post by: Paladin on December 03, 2010, 02:16:24 pm

I'm working on two issues at once here.  I've got a Dell PC with ArcadeVGA and a J-Pac connected to a New Astro City cabinet.  
The J-Pac is passing video fine, but pretty much all my vertical games crash in MAME with an 'access violation'.  I've been using a 5 year old build of MAME, so I'm currently transferring over .139 to see if it makes a difference.

The other issue is that the J-Pac isn't passing the cabinet controls to the PC.  The J-Pac I have uses the PS2 connectors, and a PS2 to USB cable.  I had the USB cable connected to the Dell PC I'm using, and had a regular keyboard plugged into the Dell PS2 port.  This would cause the J-Pac test LED to flash once and stay on steady like it should, but using the cabinet joysticks and buttons won't show anything in notepad or work in a game.

I then took the keyboard out of the PS2 port on the PC and plugged it into the J-Pac passthrough, and the PC then booted with a keyboard not found error and the test LED on the J-Pac does not light at all.

I'm guessing both problems have simple solutions, but it's been so long since I've built a MAME cabinet that I'm struggling with them.  Any help would be appreciated!

Title: Re: J-Pac not passing controls
Post by: Paladin on December 03, 2010, 08:29:13 pm

Looks like the newer version of MAME has fixed the crashing vertical games.
I still can't get the cabinet controls to work with the J-Pac however.

Title: Re: J-Pac not passing controls
Post by: AndyWarne on December 05, 2010, 01:19:31 pm

It would be best to drop me an email and we can look into the problem.
andy@ultimarc.com

Title: Re: J-Pac not passing controls
Post by: Paladin on December 05, 2010, 06:21:21 pm

Thanks Andy, but I didn't want to bother you until I was sure it wasn't a simple problem on my end.

I just got back from the store with a male/male PS2 cable, and now it's working fine.  It must either be a bad PS2 to USB cable, or something odd with USB or keyboard behaviour on the PC I'm using.  I did plug in a USB mouse and it worked fine, so that's when I decided to pick up a PS2 cable.  As far as I'm concerned the problem is fixed. 

Thanks for offering the support Andy, vendors who go out of the way to help are a true asset to the hobby!