Ipac question

[dweebs0r]

Can anyone answer this or help me figure out what I am doing wrong.

I have an Ipac hooked up and working fine using the Player1+Player2 button combo to escape back out to the main menu when I am done with a game.  All buttons are working, however for some reason, when I hook up the coin door quarter switches the buttons combos dont work anymore.  Any ideas?

Thx,
-Dweebs

[wrench]

sounds like your coin switch wiring is wrong.Should be a ground(com terminal) on each coin switch to ground on the ipac(same ground all the buttons use).And the no(normally open) terminal on the player 1coin drop switch goes to terminal marked coin 1 on ipac,and the no terminal on the player 2 switch should go to the coin 2 terminal on the ipac.This should work unless you've changed the default programing of the ipac.
default values
coin1= 5(keyboard)
coin2= 6(keyboard)
player1 start= 1(keyboard)
player2 start= 2(keyboard)

If the wiring hookup checks good,it's possible the ipac lost or changed the programing for the coin1 & coin2 values,you may need to reprogram the ipac ,you can verify the programing by opening up notepad and actuating the switches,when you actuate the coin 1 switch you should get a 5 in notepad,coin2 switch actuated you should get a 6.

[dweebs0r]

sounds like your coin switch wiring is wrong.

I would agree with you except for the fact that both player 1 and player 2 work separately when the coin switch wires are connected, they just dont work together (player1+player2=esc) until I unplug the wires.

-Dweebs

[wrench]

just saw this on ultimarc's web site under instructions-troubleshooting,if none of  your shift functions are working when the coin switches are hooked up,it sounds like one of them may wired using the nc(normally closed) instead of the no(normally open) terminal or one of them may be bad and is shorted closed when it should be open.

Problem: No shift functions work.
Part of the shift function design means that to avoid "stuck" keys, shift functions are disabled when any key is pressed. So loss of shift functions means you have a shorted or stuck switch. Problem is, which one? There are two ways to determine this. The on-board LED gives an indication of which input is shorted, see later in this section.
Or use the built-in test mode:
Run any text-display program such as Notepad, or if you are in DOS type "COPY CON" to turn off the command prompt. With a keyboard plugged into the pass-through port, press CTRL-ALT-P (press and hold each key in this order). You will go into programming mode. If the MAME/ALT jumper is set to MAME you will go right into test mode. If not, you will see a menu. Enter "T" for test mode. The offending stuck input(s) will be displayed on the screen.

[dweebs0r]

I just plugged the wiring into standard microswitches and everything worked fine.

I think youre right.  One or both of these coin switches has bit the dust.

Thanks for the help, I'll try replacing them.

-Dweebs

[wrench]

Glad to have been able to give some help back to the forum,it's helped me more than once.