Good day to everyone.
I am in the middle of trying to bring a 1980 Gottlieb Panthera back to life. In it's efforts to thwart me, the machine decided to blow a transistor (hopefully that is all) on the solenoid driver board at power-up. As I am not the best at working through an electronic road map, I was hoping for a little troubleshooting assistance.
First, does any one have a replacement part number for this transistor?
The transistor that released its magic smoke is located at Q53. As far as I can tell, this is the knocker solenoid. I tested the resistance at the coil and got about 5 ohm which isn't great but should be functional (again, I hope). It does not appear that any other coils in line with this. Is there any way to test back to the board to make sure everything is working correctly? I would hate to fix the board only to turn it back on and let out more smoke.
Thanks for any and all advice.