Oops, spoke too soon with the MS9-29T.
In the middle of soak-testing the monitor, it shut itself off after about 30 minutes. A quiet audible click can be heard as it does this. There was still neck glow
(I believe) but no image on screen. After powering down completely, then turning it on quickly after, there was no image on screen but there was neck glow. Leaving it off for a good 5-10 minutes, then turning it back on then produced an image, but would shut down after 30 minutes or so.
At this point, I had not fully recapped the chassis. Only the vertical circuit was recapped. So then I did the obvious thing and recapped the entire chassis, save for C411 (bi-polar) and C503 as I did not have caps for those handy. Still, I am getting the random shut down. I am also noticing before the image shuts down, it is jittery.
Next Steps:
- I am going to pull C411 and C503 off the MS9-29SU which I just recapped and put it into the MS9-29T
- Digging up info on checking B+, in case after replacing C411 and C503 does not fix the problem
- EDIT - B+ is measuring a rock solid 75.61vdc. Measured with a Fluke meter
- Reading up on the info about the diodes around the flyback
- Reading up about the HOT
While I do have replacement HOT's handy, I want to avoid replacing the HOT as much as possible.