Good evening everyone,
I'm in need of some help. I've been having issues with the 2 ball lock not firing in game or in test mode so I checked the transistors and Q28 was reading kinda funny so i replaced it with a 2n4401. on power it smoked the new Q28 so i thought maybe the coil or the diode were shorted so i removed them and everything checked ok , but when i went to put them back in i realized that the previous owner had put the wires on backwards so i correctly wired the coil up and replaced both Q28 and 29 and now it dosent instantly smoke Q28 it does work but now Q28 and Q29 get HOT like burn your finger hot. The coil is warm but it dosent look like the coil is on. if i put a ball in it kicks it out and the eject pin retracts and i can repeat the process again and again. eventually it will start smoking if i let it go long enough. i also checked all the resistors R51 reads 68 R50 reads 553 and R52 reads 2.7K i did check a few others in the area and they all read similarly with the exception of the 2.7k is only 1.7 K on R43,R46,R49. So is something stuck on or did i not use the correct replacement for Q28 ?
Thanks Bruce
Vista, CA
