ngtmareracer Member Donor 3 years: 2015, 2021, 2025 VAPS Joined Jan 7, 2015 Messages 166 Reaction score 6 Location Worcester, Massachusetts Apr 14, 2025 #1 This monitor had a flyback fail, replaced it now it smokes R1903. It's been a few years since I've delt with these things, just hoping someone could give a place to start. Thanks in advance. Mike
This monitor had a flyback fail, replaced it now it smokes R1903. It's been a few years since I've delt with these things, just hoping someone could give a place to start. Thanks in advance. Mike
tron guy Super Moderator Staff member Donor 12 years: 2011, 2015-2025 VAPS Joined Jun 26, 2007 Messages 23,146 Reaction score 2,594 Location Eureka, California Apr 15, 2025 #2 I have a couple of questions that may be obvious. With the flyback change did you change the small fuse as well? Did you test the HOT ? I don't think either of these things contribute to R903 burning up. I've never seen R903 burn up. Any chance you can post a few pics of the top and bottom of the chassis when you get a moment?
I have a couple of questions that may be obvious. With the flyback change did you change the small fuse as well? Did you test the HOT ? I don't think either of these things contribute to R903 burning up. I've never seen R903 burn up. Any chance you can post a few pics of the top and bottom of the chassis when you get a moment?
OP OP ngtmareracer Member Donor 3 years: 2015, 2021, 2025 VAPS Joined Jan 7, 2015 Messages 166 Reaction score 6 Location Worcester, Massachusetts Apr 16, 2025 #3 I think I found it. The large ceramic resistor Mounted on the frame 220 K Is wide open. do not have one here but I'll post if it fixes it..
I think I found it. The large ceramic resistor Mounted on the frame 220 K Is wide open. do not have one here but I'll post if it fixes it..