Zenith 25EC58 Restoration Thread

[BeamT]

+1 old_tv_nut, duplicate what was there as much as possible.

Stay on the track you are working, finish, and then move forward.

and I remember. Alternative Ways of Adjusting G2, is only 4 threads away. IMO you never fully explored that issue. ElectronicM gave you excellent advice and recommended looking at the voltages associated with the CRT. You looked at a lot of things but it appears you never returned to that. The CRT and Video Outputs are supplied by the 3 boost sources that are Horiz derived. The TV needs to produce 3 pictures, a red one, a blue one, and a green one, of equal intensity dark to light (gray scale -tracking) on top of each other (convergence). Thats why in the immortal words of Zeno, start with a good black and white picture.

I concede that a really tired/weak CRT might not be capable of producing one or more RGB setup lines but from the brief pictures you have posted, your CRT actually looks really good. Did you ever test the CRT?

ElectronicM has also chimed in with soldering advice, I think in more than one of your threads. Do you think you have enough wattage in your soldering devices? You should be able to pull component leads from the solder cones (pots), and re-insert leads to the depth of the cone. I use a Weller gun. If I did this more often, I would use the higher wattage iron that he uses.