Frax
New member
Okay, I just replaced Q4, which is the driver for the right sling. It was locking on as soon as you start a game. After putting the fuse back in and starting the game, it did NOT lock on, but after a few ball strikes it DID.
What gives? I'm about to pull this coil and replace the diode and meter it out, is that the likely culprit here, a bad coil? I don't have a Stargate manual or schematics. As far as I can tell, I don't see any pre-driver transistors/MOSFETs for these coils, but I tested every other MOSFET on the board and none of them were bad prevously, so if there is one....not sure why it would be causing an issue at this point.
I'm really in the dark with this kind of repair, it's the first time I've done PCB work at all, my soldering looked excellent though.
What gives? I'm about to pull this coil and replace the diode and meter it out, is that the likely culprit here, a bad coil? I don't have a Stargate manual or schematics. As far as I can tell, I don't see any pre-driver transistors/MOSFETs for these coils, but I tested every other MOSFET on the board and none of them were bad prevously, so if there is one....not sure why it would be causing an issue at this point.
I'm really in the dark with this kind of repair, it's the first time I've done PCB work at all, my soldering looked excellent though.


