Another KCS47 Restore...No High Voltage/B+ Down 25V

[Kevin Kuehn]

Hey Chris,

Did you get your transformer wiring issues squared away OK? For your information, even after having several video IF alignments under my own belt, it's not exactly something I look forward to, not just for the sake of saying I've done it. It's one of those things that demands so much time and concentration, that it often seems like a nasty job. Then after seeing how little improvement it often results in, I'm for the most part content to leave well enough alone. But you do have to make an informed judgment call dependent on how the set performs. I often end up simply touching up the sound IF alignment so it's aligned with best picture tuning. And lately I've even gotten lazy with this and aligned the sound to the 4.5mhz carrier of my VHS/DVD combo player which has an RF modulator built in. So with the DVD player I can pause the video and the muted audio sound carrier is still present to align to using a scope or high impedance meter similar to what Sams alignment instructions typically call for. Funny thing is I seldom watch the TV's once they get taken off my work bench, so not much motivating for me to begrudgingly go through the entire video IF alignment. On the other hand from an educational perspective it makes perfect sense to do a few so you understand what is all involved, and of course it ultimately gives you a better understanding of how the circuits in the TV all work together. But it's definitely something you need to approach with caution, and most likely after you gain a better understanding of why and how its done.