Black Matrix
Well-known member
I am by no means a tech, but I have my fair share of success by either repair attempts or swapping parts out. But my tempest seems like an odd set of problems. First, I was having a game at my house bout 3 months ago. Somewhere during the day, my Tempest monitor just went dark. I assumed it was the monitor as I didn't think I had ever done anything to it. So I pull it and remove the boards for rebuilding. I notice that it looks like I bullet proofed it in the last couple of years and forgot. New LV2000, cap kit, diodes, transistors. So I reassemble it and plug it to my Star Wars. The monitor is fine. So I check my fuses. All are fine. Keep in mind that the game coins up, plays, and has sounds just like the monitor is dead. So I turn up the bright level and I have 2 lines coming from the center of the spot killer dot. One goes diagonal to the corner and the other goes out to the middle right side. So it would seem I have a PCB problem of some type. anyone have any suggestions of a component that would cause the picture to become two lines when it fails. Bad mathbox, quad pokey, AVG chip. Any suggestions. It just seems odd that the game will play, and the monitor is fine, but the screen looks like a couple transistors has gone bad. Thanks in advance guys.