How does a SMK Tactile Switch work?

[Buendia]

Hey everybody, I dismantled a Expandora 2001 (the second gen with that big flap for switching and the four cheap knobs) as the switch was getting faulty, the LED's no longer work, etc, etc. The switch they use in the box is a little switch under a flap that looks an awful lot like this part at small bear http://www.smallbearelec.com/Detail.bok?no=36. On the bottom of the switch it has a layout that looks like a DPDT switch, but since the switch actually uses a spring and is either physically up or down I don't think it operates at all the same way. Does anyone know how these switches work?

If we numbered the pins like this:

1   2
3   4
5   6 

What I know about how the wires were connected is that 6 goes to the in tip, 2 and 3 are connected and both go to the out tip. I can connect either 2 or 3 to 6 without any power and pass a clean signal to my amp. Using my DMM with the black lead on the ground and using a 9V battery for power I get the following readings: 1 is 6.22v, 5 is 1.8mv, 4 is .5v. 4 constantly swings though by about 200 mv.

Between 1, 5, 4 I know that two of them are my board in's and out's, not really sure what the final would be. Maybe a ground. I've been messing with this for about 4 days at this point.

I'm going to take the plastic board mounted pots and jacks and mount something substantial and completely rehouse the whole thing. I'm trying to replace the SMK switch with a DPDT or 3PDT, I have both available. (I'm thinking a 3PDT may be needed to add an LED that actually works. I'm hoping there is a way to do it without just having a battery in the housing just for the LED and using the DC jack to power the pedal.

As far as the 4 LED's that come with the pedal, they never come on. It's possible that they got blown and just need to be replaced as R18 was blown on the box (I couldn't tell at all what the resistor value actually was by the way, I want to say maybe it was a 47 ohm, I replaced it with a 82 ohm) but I'm pondering just finding a way to get the Expandora to power another LED and I'll just run a new LED and forgot the old ones.

For anyone who is wondering, this edition of the expandora has much better bass response than the original (which I also have) I'm pondering getting the reissue at some point, but at this point it's personal. I need to get this fixed for my sanity.

Also, if it's only possible to wire the pedal to be always on for some reason and I need to fore go a switch altogether, I would do that, power it with my power supply and use it with a true bypass strip.

All other projects are on hold for me until I can get this cleared out.

Thanks in advance!

[Buendia]

No ideas? Or can you tell me how to get more information for you?

Thanks