Adding The Alltek Lamp Driver Boards To Your Bally Pinball Machine – Franks Quick Tips

Whenever making repairs or adding mods I try to stick to my own self imposed rule: repairs should look like there never was a problem and mods should look like they could be factory.

I know that when doing repairs they will sometimes be obvious because say new connectors will be different than the others and so on, but that doesn’t mean the repairs can’t be clean. The image below illustrates my point.

William’s pinball WPC power driver board with properly repaired G.I. connectors.

It’s the same with mods. Instead of properly connecting wires, I see people using alligator clips to power them. Clips are OK for testing purposes but not as a permanent solution. All it takes is for one clip to fall off and touch something it shouldn’t to make a whole mess of problems.

Data East pinball power supply with alligator clips on the test points to power a mod.

Whenever adding the Alltek lamp driver boards for LEDs you need to run a power wire to it from the switched lamp circuit to eliminate the LED flickering. I usually see a wire draped across from the insert panel to the board and just hanging freely. I suppose in most cases this is fine and I’m sure most people won’t care.

My OCD prevents me from doing that. I don’t use the wire supplied with the board since it’s not long enough. I start from the point where I’ll pull power and tie the wire into the existing harness using new wire ties and feed it into the connector through the other side to where it will eventually terminate at the new lamp driver board.

The power wire for new the Alltek lamp driver board tied into existing harness and is barely noticeable.

I can think of maybe one occasion where the connector was full and I had to add an additional connector, but most games won’t have this issue as there’s usually a few unused spaces.

Bally pinball insert panel connector with auxiliary wire added.

One benefit to this is that in the rare occasion the insert panel needs to be removed from the head no additional wires will be to be dealt with.

Bally Spy Hunter pinball boards with auxiliary anti flicker wire added for Alltek lamp driver boards.

That’s is for this Frank’s Quick Tip, hopefully it will inspire you to take a little extra time when making repairs or adding mods. Not only will your work look better, it will be less prone to problems and will be ultimately more reliable.

Till next time, Frank

Readers Comments (2)

  1. I do a varing amount of electrical work and it’s nice to see someone who likes to merge the mods back onto the original circuitry to make the work invisible. There is nothing more satisfying than hearing the customer ask ” where was the mod, I can’t see any difference”.

    • It’s definitely refreshing, isn’t it? There’s a level of satisfaction in doing the job right, even if most people never see it.

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