Well, sometimes you just have to know when your beat and to ask the experts.. seems like I have been doing this a lot lately and for that I am truly sorry. Im also humbled by this machine.. For a system of relays and coils, with no actual computer within its belly, this thing sure is humbling me.. well, anyway I will get to the point of my post..

Lately I have had a series of issue that with the help of the experts of this group have been able to solve.. However one problem that keeps popping up"intermittently" is a issue where sometimes the 5000 point bonus when shooting the drop targets will not happen. ( now this issue is permanent )

Right now the game scores fine with the exception of the 5000 point bonus awarded for each drop target shot. I can manually depress the 500 pt relay (C) which scores 500 pts perfectly, however when i depress the 10x relay (D) and then the 500 pt relay (C), no score is put up on the board. 10x relay (D) and 50 pt relay (B) work fine scoring 500 pts, however this is not the case with the 10x relay (D) and the 500 pt relay (C) to score 5000..

To me in my limited knowledge it seems like there is a short somewhere. I have visually inspected every relay for any solder bomb, shorts, loose wires, or bad connections.. nothing seems to pop out at me.. I have cleaned and re-seated every Jones plug and visually inspected all the connections as well..

I should also mention that when all drop targets are down, the game awards the 5000 pt bonus through the 5000 pt and bank reset relay (E) just fine.

I hope this all makes sense.. I can post a video if needed.. thanks in advance for any help..

Thanks MarkG I will examine those make or breaks tonight when i get home and report back.. Its so frustrating to have intermittent issues, however now that the issue seems to be sticking around, maybe there is hope to actually resolve it..

Well I am happy to say the issue has been resolved thanks to MarkG . Based on the schematic I first jumpered the white wire coming off 1A directly to the GR-WH-RED of the L relay. By doing this I was able to complete the circuit and the 5000 pts was put on the board. I then jumped the N/O switch of the D relay to the closed position which did not fix the issue. I then Jumped the N/O switch of the C relay to the closed position and now I was getting 5000 points again. So I cleaned and adjusted the N/O switch on this relay which fixed the issue hopefully for good.. Its funny because I had looked at this relay a few times before and each time it looked like the switch was closing, however it must have been just not enough of a contact being made. Thanks again for all your help. These schematics are not looking so " Greek" to me when presented in small snippets like this.