Ms. Pac mysterious wire connection?

mschwartz01

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Ok, so a few weeks back I acquired a Ms. Pac cab that had been gutted... I couldnt bring myself to mame this classic so I am in restore mode...

I've been in and out of the wiring diagrams, but this piece has me thrown for a loop...

Thye wire runs off of the cluster that goes to the coin door / control panel...

This pic I found online shows that is plugs into a harness that is just screwed into the side of the cabinet under the monitor.

What is this part? I obviously need to buy it to make this ms. pac live again...

Anyone have any info?

Here is the pic below (This isn't my pic, I found it online and added the arrow)

2wh0ayv.jpg
 
Credit multiplier bypass board. It's just a scrap of PCB with a molex header that has a couple pins connected together. It was installed in place of the credit multiplier board that would have been used on games shipped overseas.

-Ian
 
My understanding is that the bypass board simply connects the wires going to the coin switches on the coin door to the 'COIN' inputs of the PCB, in the absence of a credit multiplier board. It's safe to power on the game without it, but you may not be able to coin up unless you short the relevant wires in the connector to reestablish the connection between the coin switches and the PCB.
 
My understanding is that the bypass board simply connects the wires going to the coin switches on the coin door to the 'COIN' inputs of the PCB, in the absence of a credit multiplier board. It's safe to power on the game without it, but you may not be able to coin up unless you short the relevant wires in the connector to reestablish the connection between the coin switches and the PCB.

Correct. The game will work in Free Play mode without it, but otherwise you need to install some jumpers to connect the coin switches back up to the board. The credit multiplier bypass is listed on the wiring diagram for the game - looking at that, you'd connect pins 1 and 2 of that connector together, and join them to pin 4. You can do this by making a little board with the molex header on it, by cutting and splicing the wires, or by using a paper clip to join the pins together.

Personally, I'd probably just cut up a paper clip, bend and insert it into the connector and tape it in - that way you don't have to modify the wiring harness.

-Ian
 
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