(Topic ID: 258519)

Re-pinning Gottlieb 80B PS

By Topher5000

4 years ago



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#1 4 years ago

My Raven's been resetting & when I checked A2J2, pin 2, second from right, was hot & burning the housing.
I've noticed that jostling A1J1, where A2J2 pin 2 runs, used to help with the resetting. The sound sometimes goes loud enough that I have to unplug the sound card.
I'll re-pin A1J1 & take the PS into the local electronic supply & have J1 & J2 re-pinned. I'll get the pins for the housing from them, assuming that they're widely available.
What are the proper male & female pins that are required?
I've re-pinned the edge connectors but not the ones that slip over the pins. Are they hard to remove from the housing? It looks like you press the underside & pull the wire.

#3 4 years ago

Thanks Chris. I think I ordered some from GPE a few years ago. I imagine that the place I take the boards to gets their parts from Digikey. If I don't have any, I'll take a look & see if they sell them.

2 months later
#4 4 years ago

Finally got around to this & got my parts yesterday. I thought I had trifurcons, but I have 08-03-0305 bifurcated. Will these work?

#6 4 years ago

Thanks Ed. Glad I asked.

2 weeks later
#7 4 years ago

Welp, I finally got around to this. I had been putting it off as there were lights stuck on, some were dim, others were out & it kept resetting. It seemed like it was one thing after another, but I felt this was a good time to get it going, at least without the resets.
I started by replacing A1J1. Checking voltages, I was getting them all over the place. At A1J1 I was getting 10.3v, turning it down I got 3.1v, nudging it up got 5.05v, but after a while it started resetting again.
I then replaced A2J2, as it was getting hot & had discoloured the housing, & set the voltage to 5v.
Lo & behold, everything works. The stuck on lights now flash, the ones that were out or dim now work & there's no resetting. Now I only have a few burned out lights & a stand up target to replace.
Lesson learned - Don't assume the worse & think if there could be a common cause for problems.

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