This topic is for discussing the test and reproduction PCBs that I have been working on and will be working on. I placed it in tech/generic although my experience is predominantly System 11 and WPC.
The background is that I used some hillbilly engineering to make my own bench test rigs for initially WPC-89 and then System 11 and as yet WPC-95. I built some custom prototype boards to serve the purpose of testing on the bench but those boards took me about a few weeks to lay out (slowly in front of the TV) and then about a week to build (manually routing and bending wires, etc). This doesn't scale to building more test rigs (not that there's demand for that but when I got to building the WPC-95 one I didn't want to spend the time to build another prototype board). Instead I've spent about two months learning something new - more below. One week versus two months. Not very efficient.
I'm not sure if there's a way to inline embed pictures so I'm just going to stick to uploading the pictures at the end of the post.
Having said all of that ... away we go.
The first two pictures show the prototype boards I built for the bench test rig. Lots of meticulous wire bending, routing and cutting. There was no schematic for these boards. I did the layout in notepad (a standard and simple text editor). Error correction took a long time.
The third picture shows a bunch of small boards I had made to "get my feet wet". The ones on the left are general illumination testers. Two versions of a similar concept. With these boards and connectors you can go up to a machine and plug them in and instantly exclude the board or the playfield wiring for either J120 or J121 (as well as J119). The ones on the right are solenoid savers (I know barakandl makes these). I didn't make these to compete. I made these for myself and to make sure the fuse holders are correct. The boards in the middle are a reproduction of the relay boards in System 11. I've had a few of these burned out and wanted to start with something simple.
The fourth picture shows the "professionally" designed test boards. One of the things I realized doing this is that the silkscreen is the best part. It allows the designer to put whatever notes they want. In the case of the solenoid tester I put the drive transistor on it so I don't have to bother consulting the manual and trying to find it when I'm testing the board on the bench.
At some stage in the future I will get around to documenting the hillbilly engineered bench test rigs in a separate thread. There's been almost no demand for any information on this.