Sorry if this isn't the place to post this, but I'm new at all this.
I bought a Houdini NIB right before the lockdowns started last year. Everything's been more-or-less fine until a few months ago when I got a switch error notification on the menu screen.
Diagnostics menu shows the trunk lid and tilt in red. What this means practically is that the trunk lid doesn't open to lock multiball, and the subway lock release doesn't work either. So you can't start mutliball, and all the balls eventually end up locked in the subway.
I ran coil tests, and sure enough the trunk lid and the subway release won't fire when tested. All the coils marked A6-B1-0 and up will not fire when tested.
So, as a new owner with no way of getting someone over to my house to help, where do I begin to troubleshoot this? The coil diagram and so forth in the manual means nothing to me. Is there someplace I can go that would explain that at least?
I really have no idea what to do, and I am a complete beginner at pinball repair, so any help at all would be much appreciated. Thanks.