Quote:
Originally Posted by vol.2
True it's always possible. Probably a lot less so with 90s resistors than with the resistors in that early 60s Sony set.
I won't give up, at least not anytime soon. I fixed a shortwave radio once that took me years. I had to put it aside for awhile and the when I came back to it fresh it kind of clicked and I figured it out.
Although, this is looking pretty much like I'll have to brute force things to some extent.
All I have currently is some slightly wrong voltages, so I'll start there.
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This long time occurred to me more than one time. Last time, was with a delta-gun TV, with a jittery unstable vertical only half a minute in a 2 hours interval (absolutely random); and after the hiccup, the vertical changed linearity a little (sometimes a lot). When I stomped in a convergence pot, finally I discovered the trouble... of course, vertical output is CCS, so a variation of the convergence resulting impedance will distort the vertical due to load variation. Took me 2 years to discover it... I cleaned the offending pot, and the problem never returned.
Also time to dedicate to it are short, so I used it as-is when symptoms are more light, until it become worst.