Quoted from MrMikeman:Have you checked the more obvious first? Does the coil have continuity? Sometimes the winding wire breaks at the coil lug.
Thanks. I didn’t check. Family just left so I’ll be able to test a few more things.
I just checked. I have continuity.
Also reading 2.9 ohms between the outer wires and 282 ohms between both sides to the middle wire.
I just tested continuity from the white wires at j3 on the right side of the flipper board to the white wire on the connector and have continuity.
I also checked the purple wire (which I may have labelled maroon previously) and the gray wire from j7 to the wires on the connector and also have continuity.
There looks like a bunch of test points on this flipper board but don’t know what I’m testing.
I think the transistor is bad. But on a bally /Williams, a bad transistor usually takes out the coil while protecting the fuse which is usually the last item to blow (when of course if it actually worked correctly it would be the first to protect the coil and transistor).
I already tested the fuse in the right side of the flipper board (f1) but since it appears to protect both the top left and right and I know the top left works, the fuse is not the issue.
The interesting thing about this issue is
This is the first time I had all four of my games on all day. I usually pick a game or two and turn on for 30 to 60 minutes to play and turn off.
The other thing is the first thing I noticed was the roll pin fell out. I was hoping it was mechanical but it turned out to also be electrical.
Also I set the power on both upper flippers to the max (40) to get the ball up the spiral ramp. I probably don’t need the setting that high on the right flipper. Could this setting change cause issues with the flipper transistor?
Once I know which transistor controls the right top flipper, I could short it. If it works the same as bally/Williams this would show that I have continuity and the coil works but the transistor is bad. I have a bunch of transistors and once I know which one and the number, I could replace it.
I was able to get a photo to see the transistor number IRL540N. I have a whole bunch of them and can replace the transistor once I find a schematic or tech support tells me which one.
I just reinstalled the right top flipper and tested coil aux right 1. Since aux right 0 should be the top right flipper. Aux right 1 should be the top right flipper hold. If I pull up the flipper most of the way, I can feel the coil grabbing it slightly to keep it up(held).
Therefore when I speak to tech support tomorrow, I assume they can tell me which transistor is aux right 0 and I’ll replace it with a new IRL540N.
When I replace transistors for other repairs, I usually replace the transistor and the coil to ensure I have a new clean unstressed set. So I will probably buy a bunch of replacement coils and probably a spare flipper board.
I hope this was an anomaly and not an indication of what happens when I finally leave a game on all day and it gets a lot of plays.
I do not want to swap boards on the game. It wastes time and I believe I have narrowed it down. I understand the game is probably still under warranty so I’ll find out tomorrow.