(Topic ID: 93512)

Terminator 2 12 slot connector question

By we7313

5 years ago

Topic Stats

  • 8 posts
  • 4 Pinsiders participating
  • Latest reply 5 years ago by johnwartjr
  • No one calls this topic a favorite


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#1 5 years ago

I have replaced the 12 slot connector on my t2, but did not mark the order of the wires.
Can someone explain why some of the wires were looped into the connector twice and why one only went into it once?
For some reason I have all lights working except top row of backglass.

#2 5 years ago

They were looped to two pins on the board. Probably to spread current drawn from the board/connector.

http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#General_Illumination_Problems some information and pictures here to help you.

If your connector was burned, did you replace the pins on the board too ? ( you should have )

LTG : )™

#3 5 years ago

I did not replace the pins, but I did have the top lights on the backglass on at one time. I'm thinking I just need them in the right order?

#4 5 years ago
Quoted from we7313:

I did not replace the pins,

Why did you replace the connector ? If it was burned, your pins were damaged too whether they show it or not, and you may have lost through board continuity.

Pull that connector off, measure the AC going out, then you'll know what the board is doing or not. Then if it is good go over the connector.

LTG : )™

#5 5 years ago

I replaced the connector because it was damaged. I did not attempt to replace the pins.
I would like to know if anyone knows how the wires are supposed to go into the connector. The picture above shows that I have all wires into the connector, everyone of the wires is getting power. If I detach one of them, an area of the play field or the back light will turn off. All lights work except the top lights (as shown in the pic).


#6 5 years ago


#7 5 years ago

Thanks for the pic, thats what I needed. Turned out to be the first wire (the one on the top) was a little loose. A wiggle and the top lights came on.

#8 5 years ago

It appears your input connector has had extensive rework - which is NOT unusual for T2 and the earliest of WPC games. The connectors burnt up pretty frequently.

Do you have a multimeter? Do you know how to check continuity?

Continuity shows that 2 points are electrically connected.

I would pull the board and perform the following continuity tests first:

J115 pin 1 to ground. Note if this connection is broken, wacky GI dimming can occur.
J115 pin 2 to fuse F106 (lower left) to J120/J121 pin 11, to J119 pin 1.
J115 pin 3 to fuse F110 (lower right) to J120/J121 pin 7.
J115 pin 4 to fuse F109 (upper right) to J120/J121 pin 8.
J115 pin 5 to fuse F107 (middle left) to J120/J121 pin 10.
J115 pin 6 to fuse F108 (upper left) to J120/J121 pin 9.

J115 pin 7 to Q10 top leg (triac lower rt). Q10 middle leg to J120/J121 pin2.
J115 pin 8 to Q18 bottom leg (triac upper rt). Q18 middle leg to J120/J121 pin1.
J115 pin 9 - key
J115 pin 10 to Q16 top leg (triac lower mid). Q16 middle leg to J120/J121 pin5.
J115 pin 11 to Q14 top leg (triac upper mid). Q14 middle leg to J120/J121 pin3.
J115 pin 12 to Q12 top leg (triac left). Q12 middle leg to J120/J121 pin6, to J119 pin3.

If any of these are missing, it will be contributing to your problem. They can easily be repaired by running a careful jumper wire to connect two points on the board.

Also, run the continuity test across all 5 GI fuses. Are any blown? They can look good, but not be good!

If it all tests good, let's look at J120 and J121 next.

Are they wired properly? The T2 manual has errors, I've done several T2s, all had burnt connectors, and wired as the manual suggests, they don't work properly.

There's a color chart at Pinwiki that tells you how to wire up the J120 and J121 by using wire colors. Follow it, WMS used a standard!


If this is over your head, and you need some help, I can repair your driver board if you will ship it to me. Send me a PM.

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