On a whim, before starting the reforming process, I decided to check the four (!) fuses on the back panel. I almost immediately ran into some confusion. According to the schematic, there should be a 3A fuse for the AC line, and a 350mA fuse for the horizontal output circuit. The tube diagram in the back of the set specs, from top to bottom, a set of 3A, 2A, and 350mA fuses. A bit confusing, but it might simply be one of the production changes between the 10PG model in the schematic and my model 10PK. But where the heck does this fourth fuse come into play
And to add insult to injury, it looks like at some point someone changed out the 350mA horizontal fuse with a
2 AMP replacement, which was ALSO BLOWN!
Baaaaad omen! But without much else to go on, I found a more appropriately-specced fuse and continued with reforming the electrolytics. The flyback can't be bad if I don't think about that possibility
With a 15W lightbulb in series, it took approximately 25 minutes to reach the correct B+ voltage at the 210V test point. One of the two multi-section electrolytics in the pi filter got slightly warm, but cooled off after a while. It definitely would have been a problem if I simply applied full power. I decided to be a little ballsy and reinstall the CRT to see if it would produce high voltage:
A very good baseline! The tuner/IF frontend does not appear to be alive yet, as there's no static, but both deflection stages working is fantastic. I'm not sure what was up with the massively oversized horizontal fuse being blown, since it seems to be working fine now...I'm just not gonna think about it. I think many of the problems with the picture will be solved by changing out dozens of paper capacitors. I'll be spending tomorrow doing that and will report back as things develop
