Black Matrix
Well-known member
Hey Guys,
I have a 25" Star Wars CP that has been the bain of my existence for a couple years now. I had rebuilt the monitor with all the Bob Roberts kits and got it working well. Even left it on for 24 hours accidentally once and it was still working when I came back. Recently, I went out to work on a Tron that was on the same plug as the SW. When I plugged them in, I started hearing popping/cracking. Unplugged everything thinking it was the Tron. When I reapplied power, I think the Transister at Q3 was beginning to smoke, but I can't quite be sure. Finally got up the courage to plug it in today and found that Flyback was arcing to the focus controls next to the flyback or the wires near it. My question is could the Q3 be causing my problems or is there a more likely culprit. I also just found one of the 3 black wires(that lead to the neck) on the corner opposite of the flyback has come loose. I suppose it could have shorted something, but I hadn't noticed it before. Any suggestions as to what to try. I don't think I have lost the flyback yet or it wouldn't be arcing. I'll have to check if the Q3 came with the monitor cap rebuild kit. If not, the extended burn test, could have put it on the brink of failure. Plus the large ceramic resister 22ohm has also seen better days. Mostly just looking for suggestions from people who have more experience on these than me. Could the Deflector board be causing this. The PCB also has a mathbox error, but I don't think that would have done it. Thanks in advance.
I have a 25" Star Wars CP that has been the bain of my existence for a couple years now. I had rebuilt the monitor with all the Bob Roberts kits and got it working well. Even left it on for 24 hours accidentally once and it was still working when I came back. Recently, I went out to work on a Tron that was on the same plug as the SW. When I plugged them in, I started hearing popping/cracking. Unplugged everything thinking it was the Tron. When I reapplied power, I think the Transister at Q3 was beginning to smoke, but I can't quite be sure. Finally got up the courage to plug it in today and found that Flyback was arcing to the focus controls next to the flyback or the wires near it. My question is could the Q3 be causing my problems or is there a more likely culprit. I also just found one of the 3 black wires(that lead to the neck) on the corner opposite of the flyback has come loose. I suppose it could have shorted something, but I hadn't noticed it before. Any suggestions as to what to try. I don't think I have lost the flyback yet or it wouldn't be arcing. I'll have to check if the Q3 came with the monitor cap rebuild kit. If not, the extended burn test, could have put it on the brink of failure. Plus the large ceramic resister 22ohm has also seen better days. Mostly just looking for suggestions from people who have more experience on these than me. Could the Deflector board be causing this. The PCB also has a mathbox error, but I don't think that would have done it. Thanks in advance.