help with joystick I/O in cyberlead

just got done installing my new seimitsu LS-32-01 sticks in the cyber lead i picked up a few months back, and while the one player works flawlessly, something is seriously wrong with the 2 player side. i went into the I/O test within the PGM 2, and its doing some really odd stuff.
when i press down, i get a proper down input.
if i push down and to the right, it triggers something odd like up and down simultaneously
otherwise when talking as in game play, the only direction that the character will walk is down. left right and up trigger no movement.

absolutely nothing looks incorrect with the wiring, i really cant tell where the problem lies since this cab has the quick connect 8 wire connectors that break the wires between the back of the control panel wall and the inside of the cab itself.
im using a jvs to jamma converter pcb to play the pgm2, and im hoping that it doesnt have a problem.

any ideas at all where i should begin troubleshooting? thanks guys.

wow no responses at all?

Try flipping the 5 pin harness backwards. Seimitsu and Sanwa pin outs are mirror images.

I had the same thing happen to me when i was wiring up an xbox pad with a seimitsu harness to a sanwa JLF last week. Only down would work cause the wire I thought was going to ground was going down and vice versa.

Only thing that makes me think it could be something else is that you're only having the problem on one side. Assuming both joysticks and harnesses are the same, I can't make sense of that.

Hopefully its your 5-pinners not your I/O. Good Luck.

ok ive learned a bit more, hopefully this will make things easier.

so long as the down direction is held, it is possible to activate left right or up individually, and properly. without the down direction being activated, you get nothing.

I had the same exact thing happen, and it turned out the 5-pin harness was using a Namco pinout instead of the standard Sanwa/Seimitsu pinout. All I did was swap 3 wires and that took care of it. You're getting weird joystick readings because the ground is somewhere where it's not supposed to be, not to mention a couple other wires are probably in the wrong place. I can't remember where I found the pinout but it's online somewhere.

ok were getting somewhere now. this is a namco cyberlead cab, so this could explain it.
anybody got the pinout he mentioned?

max 330 mega said:

ok were getting somewhere now. this is a namco cyberlead cab, so this could explain it.
anybody got the pinout he mentioned?

Click to expand...

You can figure it out really easily. Just take a wire and start touching it between the pins on the joystick harness.

When a microswitch is depressed it connects a node to ground, so after you figure out which one is ground you can leave one end of your wire plugged into ground and touch the other end to the different pins on the joystick harness.

EASY.

I think the standard pinout on JST joystick connectors is (depending on which direction you look at it):
1. Left
2. Right
3. Up
4. Down
5. Ground (usually the green or black wire)

On the Namco pinout I had something like
1. Up
2. Right
3. Ground
4. Down
5. Left
...or something like that.

So what I did was cut the three different wires from an arbitrary place and reattach them to each other, solder them together, and put electrical tape over them. Good as new. Try to trace the wires and see where they go to determine what pinout you have. Unless I'm mistaken, the pinout for the two 12-pin Cyberlead CP connectors are:
1. Up
2. Down
3. Left
4. Right
5. Start
6. Button 1
7. Button 2
...etc.

thanks alot guys, got it all fixed in about 20 minutes yesterday, works perfect now!