On Black Knight, the upper playfield right drop bank solenoid isn't working. I tested the solenoids in solenoid test mode and its #5 on the test because when it reaches #5 nothing fires. I tested the solenoid and it fires when I ground out the metal transistor. I replaced the diode on the solenoid even though it was fine. I tested the transistor and pre driver transistor as well as the 7408 chip. Everything tests good. What can I check next? I don't think its the PIA chip because if that chip was bad it would cause other issues other than this?

I replaced the TIP 102 and its pre driver transistor. That fixed the issue. But when I reinstalled the game boards after soldering I noticed that now the lower right drop target bank solenoid isn't working when it was working before. Here is the back story: when I was testing the game when I first bought it, it was missing the blanking signal because I had accidentally cut the line. So I blew through about 10 fuses that control the solenoids before I decided to fix the blanking signal. I think what happened is that by blowing through those ten fuses it stressed all the transistors on the driver board that control the solenoids because when the fuse blew it locked on every solenoid before it blew for a second or two. Now the transistors are going one by one as they are used.