Hello, and thanks for reading! I'm working my way through my second stingray machine (it's a sickness) and now I'm up to the flippers. When I got it, left flipper coil was burned through and stuck. I replaced everything on that assembly, including new EOS switch. All fuses on the entire machine test OK (not eyeball, I tested). Swapped in known good boards. Right flipper is working great, left flipper causes relay to click and flash.

I know that I have connector issues in this machine and will need to re-pin, but as I am waiting for parts, can someone suggest a next step to test?

Thanks!!

Yes, the cube relay on the solenoid board (I sure think that's a cube relay...). Can't take pics right now but wiring to the new coil is exactly the same as it came off, and the same as on the other Stingray. Soldering skills are rusty but the connections seem solid. Flipper switches (at the buttons) look OK.

I have to play with the connectors are various boards to get it working, which has me thinking I've got some issues there. When I last tested, everything came on correctly. It does have an Alltek board (just MPU). I do have an Alltek SDB I could swap it if you think it's worth a look.

PS: Diodes are the same direction on the new coil, have continuity on the EOS switch, and across between tab 1 & 3 and 1 & 2 on the new coil (working from memory on tab numbers, but it's the same as the working flipper coil)

Picture of coil. 45V measured on both sides of the coil tabs. Trying to see if anyone did wire work on this thing and I have the ground reversed by chance?
(Yes I need to go back and do a better solder job...)
6AAC14F1-B7E5-48EF-99C0-E1C18852BF6E (resized).jpeg

One last update before the family invades:

I decided to swap in the Alltek SDB. All diags looked good, then I tried the flipper and the second or third time I tried it I blew the fuse on the rectifier board.