(Topic ID: 35328)

Vid's Guide to Bulletproofing Williams System 3-7

By vid1900

11 years ago


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  • Latest reply 20 days ago by jar155
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#163 9 years ago
Quoted from vid1900:

Next we move over to the High Voltage section.
Note that if you are using LED displays (like Xpin or Pinscore), you don't need to update this section at all. The high voltage is only used for the older gas displays; LED displays run on only 5v.
In fact, you can just pull fuse F1 if you are using LED displays. This will kill power to the high voltage section, making the game slightly more reliable (you can't have a component short out or catch fire if it does not have power).

Hey vid was wondering. My Firepower has Rottendog displays. Are these LED do you know? Or can I pull the F1 fuse and if the display's are still powered on then can I assume their LED?
I definitely want to do the power supple board update. Don't really know if previous owner has done it or not.

Jack

#165 9 years ago
Quoted from Snux:

Hi Jack,
Yes, the Rottendog displays use LEDs, so you should be able to pull F1 without issues.
-Mark

Thanks for the quick reply Mark.. Appreciate it.

#166 9 years ago
Quoted from vid1900:

We need a few parts to make a clean installation:
(2) Chassis Mount Fuse Holders
(4) Female Spade Connectors
(2) 8" Pieces of 16-18 gauge stranded copper wire. One Red, one Blue.
The Fuse Holders you can get from Great Plains or Radio Shack:
http://www.radioshack.com/product/index.jsp?productId=2062257
http://www.greatplainselectronics.com/search.asp?pg=1&stext=354001GY&sprice=&stype=&scat=
The Spade Connectors crimp on. You remove the Plastic Insulator, crimp, then put the Insulator back on. Don't forget to slide the Insulators down the wire BEFORE you crimp the 2nd Spade. Otherwise you won't be able to put them on after.
http://www.radioshack.com/product/index.jsp?productId=2104091
If you have any dead PC Power Supplies laying around the shop, you can snip off the correct color wires without buying a whole roll at the auto parts store.

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Hey Vid, I got the spade connectors and 2-pack fuse holders from radio shack. Question: You using to sizes of spade connectors? The ones on the fuse holders and the ones on the rectifier seem to be 2 different sizes..
Jack

#170 9 years ago
Quoted from vid1900:

The wire diameter for different sized spade connectors is stamped in tiny letters on the edge.
One size might be 20-22 Gage, another might be 12-14 Gage...... The smaller the number, the larger diameter of the wire.

I got it all taken care of Vid. Thanks for the guide. Got it finished and it looks great. I did have to mount mine on the bottom of the backbox as there really wasn't any room on the back wall on my Firepower.

3 weeks later
#192 9 years ago
Quoted from UvulaBob:

For the bridge rectifier safety mod:
I have 18 gauge wire taken from an old PC power supply, and I have the 1/4" quick disconnects from Radio Shack that Vid linked to back on Page 2. However, the disconnects are for 16 gauge wire, which I didn't realize until just now. So now I'm wondering if I should buy some larger gauge wire or smaller gauge disconnects. The wires leading from the transformer into the bridge rectifiers are quite substantial - much more so than this 18 gauge wire I'm using.
Vid, what would you do in my position? Would you buy some larger wire to go with the connectors I have or quick disconnects that fit the smaller wire that I have? I want to make sure I do this right.

Bob,
I just went to Home Depot and bought a couple feet of 16 ga wire from the bulk spool rack. Was like 20 or 25 cents a foot

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