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This Switch On The Rear Of My Cab ....

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thecheat:

It's probably broken. Your original post did mention that it was relocated so that it wouldn't be pushed by the back door.

Looks like you would just connect red-red and blue-blue but double-check that with a meter first!

SirPeale:

Yes, it sounds like your switch is broken.  You can:

1) replace it, or

2) rewire it.

Kevin Mullins:

Sounds like the connectors are on the wrong tabs.
Like wiring a button to N.C. instead of N.O.
Notice how the same color wires are on the same side of the switch, just doesn't seem right, but I'd have to go fine a machine with that same switch in. Notice it doesn't have the "finger grip" groove in it like most interlock switches do. So it may not even be a three position type.
I've seen these used in Williams cabs by the coin door for memory protect, etc.

So I'm betting it was getting flaky because the back door wouldn't hold it in enough or they got tired of having to rig it somehow in order to keep it on when the backdoor was because it doesn't have the pullout type. Then the operator or technician moved it's position and also changed the wiring around to keep it permanently ON.

So a quick question to the OP would be.... does that switch have THREE positions?
PUSH in - CENTER - PULL out

Vicious Burger:


--- Quote from: Kevin Mullins on June 06, 2009, 01:51:18 am ---Sounds like the connectors are on the wrong tabs.
Like wiring a button to N.C. instead of N.O.
Notice how the same color wires are on the same side of the switch, just doesn't seem right, but I'd have to go fine a machine with that same switch in. Notice it doesn't have the "finger grip" groove in it like most interlock switches do. So it may not even be a three position type.
I've seen these used in Williams cabs by the coin door for memory protect, etc.

So I'm betting it was getting flaky because the back door wouldn't hold it in enough or they got tired of having to rig it somehow in order to keep it on when the backdoor was because it doesn't have the pullout type. Then the operator or technician moved it's position and also changed the wiring around to keep it permanently ON.

So a quick question to the OP would be.... does that switch have THREE positions?
PUSH in - CENTER - PULL out

--- End quote ---

I don't think so,it only seems to do 1 action. You push and hold (power goes off) and let go it comes back on
There are 2 banks of 3 connections on the back. The wires are presently connected to the outermost 2 on each bank.
It makes sense what you said about it having been rewired. I guess i don't really need to use the switch in a MAME environment anyway. There is an on/off switch on the top of the cab,so i'd probably just let the rear switch dangle as it was when i got the cab.(I only screwed it back into the holes for the purpose of showing where it fits)

Kevin Mullins:


--- Quote from: Vicious Burger on June 07, 2009, 01:43:02 pm ---I don't think so,it only seems to do 1 action. You push and hold (power goes off) and let go it comes back on

--- End quote ---

Yeah, that's what I thought.


--- Quote from: Vicious Burger on June 07, 2009, 01:43:02 pm ---There are 2 banks of 3 connections on the back. The wires are presently connected to the outermost 2 on each bank.

--- End quote ---

Wired that way keeps the switch in ON when NOT pressed.

If you were to move the two outer most wires to the appropriate inner most tab, then you would have to press the button to turn the machine on. (i.e. put the back door on)

Think of the middle tab as the "Common".
The outer most tab would be "Normally Closed" (always on, off when button pushed)
The inner most tab would be "Normally Open" (always off, on when button is pushed)

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