Hi all.
I've been working on a Road Kings for months now. I'll give a rundown of what I've done and what the most recent issue is.
So this Road Kings initially stopped lowering its ramp. I wound up replacing the power board and the ramp started working again.
Shortly after, the left flipper stopped working. It was blowing the main flipper power fuse. It would blow the fuse after a couple of days each time I replaced it, so I got a new flipper control board for it, the small one and I rebuilt the left and right flippers and put in new solenoids. After this, it was blowing fuse... F4 I think it was every time I tried to test the left flipper.
I had just replaced the solenoids so I started working on power. I tried replacing both of the bridge rectifiers. That didn't work so I looked at the game board. I put in a new relay for the flippers and reworked some cold solder joints on the game board. I plugged that all back in and tested left flipper, blew the fuse again.
I then swapped the solenoids, and the issue followed the solenoid. Now the right flipper was bad, so I replaced that solenoid and now both flippers work.
However while testing these 2 flippers I saw smoke coming from under the playfield. And now I'm totally lost on what the issue could be. here's the new details:
the Left and Right pop bumper solenoids both burned up. Like totally smoking hot. There is an individual fuse that power routes through in the upper box, it then goes to the flipper power supply. This fuse blew and stopped the power going to the pop bumpers. The flippers still work. The ramp is stuck up again. I tried rewiring the ramp solenoid but it won't pull the ramp down. The pop bumper solenoids still won't fire.
What could be causing this new issue? does anyone have any advice? I'm about at my wits end with this machine.
Thanks for reading.